738 FXUS66 KSEW 120330 AFDSEW Area Forecast Discussion National Weather Service Seattle WA 830 PM PDT Fri Sep 11 2026 .SYNOPSIS... Unsettled weather remains on track to move into western Washington this weekend with a trough moving through. This includes a slight chance of thunderstorms Saturday afternoon, along with a steadier rain Saturday evening into Sunday. Many locations will see at least half an inch of rain in total, with a higher potential for over an inch of rain in the Cascades south of Interstate 90. Drier weather will move in next week, with temperatures warming back up from Wednesday onwards. && .SHORT TERM /TONIGHT THROUGH SUNDAY NIGHT/... An upper level low will dive southeastward this weekend from B.C. and deepen as it comes ashore over the weekend. A surface trough and low pressure will also progress inland this weekend as well. The ensembles are indicating an abundance of moisture available with this system compared to normal for this time in September (as the ECMWF shows anomalies for precipitable water and integrated vapor transport at 4.0 and 4.9 standard deviations above normal). With the abundant moisture available for this time of year, the region will see some beneficial rain this weekend. The timing of the precipitation will start Saturday, with the coast seeing some wrap around precipitation to start the morning. As the low progresses inland, more wrap around showers will begin to form across the interior and the Cascades. The initial shower activity has a 15-20% chance of thunder. While SPC has all of western WA in a general thunderstorm risk for Saturday, the actual thunder may be more concentrated into portions of the south interior and Olympics with upslope/orographic lifting as the precipitation moves northwest. Otherwise, the precipitation coverage will become more stratiform going into Saturday night/Sunday, and cover primarily the Cascades (south of I-90), and adjacent portions of the south interior. Most locations will see at least 0.50" of rain with this system from Saturday through Sunday evening. The bulk of the precipitation is expected again in the south Cascades, where there is a 60-80% chance of rainfall exceeding 1" and 1.50". Rain rates are not expected to exceed 0.25" to 0.35" an hour with this system (except potentially in thunderstorms), which should keep hydrologic impacts minimal (except for some ponding). Winds this weekend will remain generally light, but could get a little breezy Sunday across portions of the interior, and along the Cascade Crest with gusts up to 20 mph. High temperatures will remain in the upper 60s to around 70, with lows in the mid 50s. && .LONG TERM /MONDAY THROUGH FRIDAY/... Ensembles have the upper level low/trough moving out of the region late Sunday, with northwest flow aloft increasing. There could be a few remaining showers in the Cascades going into Monday morning. Otherwise, expect conditions to dry out through the day for most, with more clouds than sun keeping temperatures the same. Another trough will pass through early Tuesday, however the models cap any moisture with this trough moving through. Wednesday is where the models have an upper level high building over the Pacific, with a split difference as to how long the high remains offshore going into late next week. A couple models even show an omega block over the Pacific. Regardless, most will see a warm up with the surface pressure centered over southern B.C., and lower pressure to the southwest off the coast. Highs in the lowlands will likely climb back into the mid/upper 70s (with perhaps a few 80s). HPR && .AVIATION... Southwesterly flow aloft in place over W WA as an upper level low digs southward over the eastern Pacific. This will turn more southerly as the feature reaches the OR coast Saturday afternoon. South to southwesterly winds at the surface becoming northerly with speeds less than 5 kts or going light and variable overnight. Northwesterly to westerly winds starting Saturday afternoon with speeds 5-10 kts as incoming front approaches. Widespread VFR conditions remain in place and will persist throughout the TAF period, even though cigs will lower as frontal system begins to approach not so much overnight but more in the late morning to afternoon hours Saturday. Rainfall associated with this system may bring cigs down to MVFR at times, but these will generally be isolated and as such lack the confidence for TAF inclusion. Timing of precipitation for the coast will start around 20Z and the interior terminals mainly after 00Z Saturday. Additionally, there is a threat for isolated thunderstorms Saturday afternoon/evening. Highest chances (20%) will be over the Olympics. As for the interior terminals, there is a 10-15% from PAE southwards. Chances for thunderstorms will subside Saturday night. KSEA...VFR today and Saturday. Precipitation chances will increase Saturday afternoon, with precipitation likely impacting the terminal after 00Z. There is a slight chance (10%) for isolated thunderstorms in the afternoon and evening. Southwesterly winds this afternoon will shift northerly by 06Z at 3-5 kt. Northerly winds will increase to 5-7 kt Saturday afternoon. Southwesterly winds return Saturday evening after 00Z. 18/29 && .MARINE... High pressure will continue to weaken as a low pressure system moves across area waters towards Oregon into Saturday. Behind the system, high pressure will begin to rebuild over area waters and strengthen through the middle of the week. Westerly winds will increase through the Strait of Juan de Fuca with the potential to reach small craft thresholds Saturday evening and Sunday evening. Latest probabilities are around 40-55% on Saturday and 70-85% on Sunday. Seas generally around 4-6 feet this weekend, decreasing slightly early next week to 3-5 feet. 29 && .FIRE WEATHER... Onshore moisture will increase this weekend as a trough moves across western Washington. The initial precipitation Saturday afternoon will be more showery (with a 15-20% chance of thunder), but coverage will become more stratiform late Saturday night into Sunday, increasing the chances of a wetting rain for most (especially the south Cascades). As a result, the fire weather concerns will remain minimal going through the weekend and early next week. High pressure will build in south B.C. by midweek, with lower pressure offshore at the surface. The pattern will become drier with warmer temperatures, and additionally some models are showing brief breezy east to southeast winds Wednesday evening/Thursday morning. A few Cascade locations may see RH values dip into the 20s, though there remains some uncertainty in the ensembles at this time as to how strong and long the high pressure will remain late next week. HPR && .SEW WATCHES/WARNINGS/ADVISORIES... WA...None. PZ...None. && $$

213 FXUS66 KPQR 120503 AFDPQR Area Forecast Discussion National Weather Service Portland OR 1003 PM PDT Fri Sep 11 2026 Updated aviation discussion. && .SYNOPSIS...Expect a cool and unsettled weather pattern this weekend thanks to an upper-level low pressure system moving into the Pacific Northwest. Showers and a slight chance (10-20%) for thunderstorms develop Saturday and continue into Sunday. A much warmer and drier pattern takes hold by the early to middle portion of next week as high pressure builds offshore. Confidence is beginning to increase in a window of easterly winds around the middle of next week as well helping to aid this warm-up. && .DISCUSSION...Now through Thursday...Overall rather benign weather conditions are in place this afternoon into the evening as we await an upper-level low pressure system currently deepening over the eastern Pacific. Come Saturday models are in excellent agreement showing this feature moving overhead with rain showers reaching the coast Saturday morning and spread inland through the afternoon. Rain and showers will continue Saturday night, followed by additional showers through most of Sunday. At this point confidence remains high the vast majority forecast area will see measurable precipitation and temperatures stay well below normal during this period. Saturday through Sunday, total rainfall amounts should generally remain on the lighter side, with around 0.10-0.40 inch expected for most locations. The Cascades will likely receive more, with the southwest Washington and north Oregon Cascades currently favored for the highest totals around 0.50-1.00 inch (highest values in the southwest Washington Cascades). These latter two areas is where we`ll have to keep an eye out for a mid-level deformation band forming on the north to northeast periphery of the low pressure center which will act to consolidate shower bands and lead to higher rainfall amounts. Should it shift a touch further south, the Portland Metro would see rainfall totals notably increase during the Saturday night/Sunday morning time period. Once the low pressure begins to shift east of the Cascades as Sunday progresses showers become more isolated/scattered and terrain driven, especially in the afternoon, while the inland valleys and immediate coastline revert back towards mostly dry weather by the late afternoon. It`s worth highlighting there is a slight chance for thunderstorms (10-20%) Saturday mid to late afternoon into the evening as the cold air associated with the upper-level low moves overhead. How much instability develops will depend partly on the timing of the system as best daytime heating and coolest air aloft current don`t overlap for more than a couple hours (if that). But, current deterministic model soundings show a deep enough layer of CAPE to produce lightning. If the arrival of the coldest air aloft pushes back further into the evening thunderstorm chances will be lower. Any weak Thunderstorms could produce infrequent lightning, locally erratic winds, and moderate to heavy rainfall. Cold-core funnel clouds could also develop in more robust convective elements. These are generally short lived and way more often than not remain above the ground. A warmer pattern is then expected to develop early next week as high pressure strengthens over the eastern Pacific. Some lingering troughing overhead will help keep Monday and Tuesday from becoming completely clear and too warm, but the overall trend is toward drier weather and rising temperatures. Interior valley high temperatures should climb into the mid 70s by Tuesday afternoon. By Wednesday, ensemble guidance favors the offshore ridge moving closer to the Pacific Northwest, with about a 70-75% chance of this scenario playing out. If the ridge continues to build as expected, temperatures could reach well into the 80s across the interior lowlands. The other 25% of the guidance keeps some troughing near the region and would result in slightly cooler temperatures. Increasing easterly flow is also looking increasingly likely by midweek as the ridge strengthens coupled with a low pressure feature over northern CA helping to drive broad NE winds aloft. Current guidance suggests the strongest winds from Wednesday into Thursday morning, with sustained winds of 10-20 mph and gusts 25-35 mph (isolated gusts up 40 mph) for our more wind prone locations in the Columbia River Gorge, Cascades and adjacent foothills, and to a lesser extent the tops of the Coast Range (higher uncertainty here). With rising temperatures and lowering relative humidity values Tuesday through Thursday coupled with the increasing winds out of the east, this will definitely be a time period to monitor in the coming days. -99/12 && .AVIATION...Through 06z Sunday...VFR conditions remain in place across the airspace ahead of an approaching area of low pressure which will bring increasing rain chances after 18-24z Sat. Bkn- ovc largely high clouds will continue to stream overhead tonight, with bases lowering from 20-25 kft down to 8-10 kft by 18z Sat. Low marine stratus arriving on a southerly surge will favor IFR cigs along the central OR coast after 09z Sat, while terminals farther north maintain VFR cigs at 5-8 kft overnight. There is also a 20-40% chance for a period of MVFR cigs in the hours after sunrise at inland terminals, most likely from 15-18z Sat. Fairly light winds overnight will begin to rise out of the south by Saturday morning. Low-end VFR cigs at 3-6 kft and rain showers arrive from the west by 21-24z Sat, initially along the coast and spreading inland. VFR cigs remain favored during rain showers, while restricted vis is most likely along the coast. South to southwest winds rise to 8-12 kt at coastal terminals and to 5-10 kt inland as the rain showers approach. There are low chances, 15-20%, for an isolated thunderstorm across the region Saturday afternoon and evening. KPDX AND APPROACHES...VFR conditions expected through the period. Increasing low clouds Saturday as an area of low pressure approaches, but rain may hold off until after 00z Sun. Modest 40% chances in MVFR cigs in the mid to late morning, 15-19z Sat, before increasing mixing again favors VFR conditions by midday. Light winds tonight will back out of the south to southwest at 6-10 kt by Saturday afternoon. -36 && .MARINE...An area of weak low pressure near Vancouver Island will strengthen slightly was it drops south over the waters tonight into Saturday. Relatively light winds tonight become southerly by Saturday morning, and increase to around 10-15 kt with gusts up to 20 kt. Heavier showers or thunderstorms that develop with this low pressure system over the waters on Saturday could produce stronger wind gusts and lightning. The low is expected to push inland by Sunday with onshore southwesterly winds persisting through Sunday night. High pressure rebuilds over the waters by Monday, returning northerly winds to the coastal waters early next week. Somewhat choppy seas around 6-7 ft continue this afternoon, but are expected to subside slightly to around 4-5 ft during the weekend as a northwest swell persists at 9-10 seconds. /DH && .PQR WATCHES/WARNINGS/ADVISORIES... OR...None. WA...None. PZ...None. && $$ www.weather.gov/portland Interact with us via social media: www.facebook.com/NWSPortland x.com/NWSPortland

671 FXUS66 KMFR 120435 AFDMFR Area Forecast Discussion National Weather Service Medford OR 935 PM PDT Fri Sep 11 2026 ...Updated the Aviation and Marine Sections... .AVIATION...12/00Z TAFs...VFR conditions prevail across the region early this evening. Around 08Z, expect the return of IFR/LIFR conditions to the coast near Brookings, with MVFR and local IFR conditions also beginning to form and returning overnight north of Cape Blanco. MVFR is likely in the Umpqua Valley, including Roseburg around 12Z to 18Z on Saturday morning. An incoming system on Saturday will bring lifting of existing ceilings, but also increasing VFR cloud cover across the area. Showers and isolated thunderstorms are expected north of Gold Beach Saturday afternoon, with light showers spreading inland across much of the area into Saturday night. && .MARINE...Updated 800 PM PDT Friday, September 11, 2026...Winds will continue to ease overnight, with seas at a minimum on Saturday morning. Winds shift to the south Saturday ahead of a cold front that will pass onshore Saturday night. Steep seas are possible Sunday night into mid-week, especially south of Cape Blanco, as the thermal trough redevelops. && .PREV DISCUSSION... /Issued 248 PM PDT Fri Sep 11 2026/ KEY MESSAGES... * Cooler high temperatures today, significantly cooler Saturday/Sunday (15-20 degrees below normal), trending back to near/above normal by mid-week. * Gusty winds/low RH this afternoon bring elevated fire weather concerns east of the Cascades. * Showers/light precipitation expected on Saturday, highest precip amounts expected along the coast and north of Rogue-Umpqua Divide. * 15-25% chance for thunderstorms over marine waters and along the coast. * Wind gusts 25-35 mph expected east of Cascades/Shasta Valley on Saturday. * Light showers linger along coast/NW sections Sunday morning, trending drier through the day. Dry conditions continue through next week. DISCUSSION...A broad upper level trough will linger over the region today, resulting in temperature trending cooler today with highs in the mid 70s to mid 80s for most inland valleys. Gusty winds and dry daytime humidities are expected this afternoon and evening for areas east of the Cascades, resulting in elevated fire weather conditions. Conditions aren`t quite expected to reach critical values today, and even if they were, recent moisture has greatly lowered fire weather concerns for the time being. A stronger low drops over the area on Saturday, bringing a much more significant cooldown for the weekend and stronger winds to the region. The mid-level jet associated with this low peaks around 35 to 40 kts Saturday before pushing southeastward and strengthening a bit. This will limit any headlines for gusty winds, but expect widespread gusts of 25 to 35 mph to common east of the Cascades/northern California and the higher terrain. Some of the windiest spots could gust to 40 mph Saturday afternoon. Despite these winds, fire weather concerns will be mitigated by increasing daytime RHs on Saturday compared to today/Friday. Aside from gusty winds, Saturday will feel quite cool, especially compared to recent days. High temperatures will top out around 15-20 degrees below normal, feeling more on par with late October than mid September. Widespread showers will develop west of the Cascades on Saturday with some scattered activity across the East Side as well but primarily north of Highway 140. Precipitation chances remain highest along/west of the Cascades and north of the OR/CA border and amounts are generally expected to be in the 0.10"-0.25" for the coast and north of the Rogue/Umpqua Divide, with a few hundreths for the rest of the area southward to the state border. Instability with this trough will bring a chance (15-25%) for thunderstorms on Saturday, mainly over the coastal waters and along the coast. This low shifts east of the area on Sunday and conditions will trend drier. There could be some showers that linger through the morning across far northern areas and the coast, but most areas will see a dry day on Sunday. Well below normal temperatures will continue through Sunday, and we`ll need to monitor the potential for frost/freeze products for portions of the East Side Sunday morning and again, Monday morning. Lingering cloud cover may limit areas of frost/freeze on Sunday morning. Then, with clearing skies Sunday night and continued cold air in place, chances for frost and freeze increase for valleys east of the Cascades. Temperatures trend warmer on Monday onward, though remain below normal through around midweek. /BR-y && .MFR WATCHES/WARNINGS/ADVISORIES... OR...None. CA...None. PACIFIC COASTAL WATERS...None. && $$

583 FXUS66 KEKA 120712 AFDEKA AREA FORECAST DISCUSSION National Weather Service Eureka CA 1212 AM PDT Sat Sep 12 2026 .KEY MESSAGES... * Red Flag Warning in effect for all towns and areas within Lake County Saturday for critical fire weather of strong winds and low relative humidity. * Elevated fire danger each afternoon through Saturday for the interior. * Chances for light rainfall for Del Norte and northern Humboldt Saturday. && .SYNOPSIS...Cooler temperatures are expected through into the weekend. Light rain is possible for the Del Norte and northern Humboldt Saturday. Westerly to northwesterly winds will bring elevated to critical fire danger for the interior Saturday. && .DISCUSSION...A trough and associated front will enter the area today, considerably lowering interior temperatures to the 70s and 80s. The front will also bring a chance for rain to Del Norte and northern Humboldt Counties. Del Norte has around an 80-90% chance to see measurable rain, while northern Humboldt has around a 20-40% chance, mainly north of Eureka. The chance for wetting rain (over 0.1") is around 10-20% in northern Humboldt and 60-70% in Del Norte. There is some instability modeled with this system, which may allow for a thunderstorm to develop in an especially strong shower. Post frontal westerly winds will strengthen this afternoon for the eastern portions of the area. The probability of wind gusts over 30 mph are above 50% for much of eastern Lake County, eastern Mendocino, and the Trinity River Valley in eastern Trinity County. This will elevate fire weather concerns, particularly over Lake County where the strongest winds will coincide with dry conditions. A Red Flag Warning is in effect for Lake County today, but elevated fire weather conditions will exist for all the interior areas listed above. There are also chances this fire threat continues Sunday night and Monday for the far eastern portions of the area. See the Fire Weather section below. An omega-block pattern is likely to develop right off the Pacific Northwest coast, with troughing remaining far east and far west. Slightly over half of ensemble members do show an elongated positively tilted trough or cutoff low over the area Wednesday. This will contain little moisture and may only result in a slightly deepened marine layer and perhaps some modest instability in the higher terrain. Regardless, a dry, near-normal pattern looks likely for the following week as the omega block stalls any storm track for NW California. /JB && .AVIATION...Nighttime IR Satellite Imagery shows a weak stratus deck developing along the Del Norte coastline. This feature is keeping the forecast optimistic for VFR through the early hours of the morning for much of the North Coast. Light winds are expected through the morning before westerlies at ACV and southerlies at CEC form. Inland, WNW winds will funnel through terrain with heightened chances for gusts in Mendocino and Lake County, especially near elevated terrain. VFR is expected in areas away from smoke from the Lucas Fire in Lake County. Rainshowers are possible for Del Norte and N. Humboldt Co, yet models show continued VFR ceilings with periodic MVFR possible. && .MARINE...An incoming upper level through is ushering a weak cold front to the coastal waters by tomorrow. This front will weaken the surface pressure gradient allowing for the weakening of northerly winds through the overnight hours. Localized areas, such as those downwind from points or capes can expect northerlies to last slightly longer. Gentle breezes expected through Saturday with gentle to moderate breezes. Fresh to strong northerly breezes return Sunday and continue through early next week. Near-gale force gusts possible south of Cape Mendocino Monday. && .FIRE WEATHER...A troughing pattern will bring breezier winds, much cooler temperatures, and a deeper marine layer through the weekend. Wetting rain is possible for Del Norte and far northern Humboldt. Stronger winds are forecast this afternoon with gusts up to 35 mph are possible in Lake, southern Mendocino, and eastern Trinity Counties, especially for higher, N-S orientated terrain. RH will rise with this onshore push of winds to the 20s and 30s, but much stronger wind gusts of 25 to 35 mph will support critical fire weather conditions, particularly in Lake County. In the few hours before the winds increase, hot and dry conditions are possible, increasing the likelihood of critical fire weather conditions for Lake County. A Red Flag Warning has been issued in Lake County from 10 AM Saturday to 2 AM Sunday. Other areas outside Lake County will still see elevated fire danger, including eastern Mendocino and Trinity County, despite not being within the Red Flag Warning area. Winds ease Sunday and RHs increase slightly into the high 20s to the high 30s for the eastern interior. Areas closer to the coast could see afternoon RHs in the 50s with a much deeper marine layer. Sunday night into Monday, an increase of northerly winds down the Central Valley of California may elevate fire conditions again for the eastern portions of the area, particularly eastern Lake County should the winds end up on the stronger end. RH does trend upwards, so the threat may be muted somewhat, but it is something to watch. && .EKA WATCHES/WARNINGS/ADVISORIES... CA... Red Flag Warning from 10 AM this morning to 2 AM PDT Sunday for CAZ418>421. NORTHWEST CALIFORNIA COASTAL WATERS... Small Craft Advisory until 3 AM PDT early this morning for PZZ455-475. && $$ NOTE: The full forecast discussion is now regularly issued between 10 am/pm and 1 pm/am. Additional updates will be issued as needed. Visit us at https://www.weather.gov/eureka Follow us on Facebook and Twitter at: https://www.facebook.com/NWSEureka https://www.twitter.com/NWSEureka For forecast zone information see the forecast zone map online: https://www.weather.gov/images/eka/zonemap.png

509 FXUS66 KMTR 120532 CCA AFDMTR Area Forecast Discussion...CORRECTED National Weather Service San Francisco CA 1032 PM PDT Fri Sep 11 2026 ...New SHORT TERM, LONG TERM, AVIATION, MARINE... .KEY MESSAGES... Updated at 1017 PM PDT Fri Sep 11 2026 - Breezy onshore winds Saturday afternoon through Sunday morning - Temperatures near seasonal averages through the next week && .SHORT TERM... Issued at 1017 PM PDT Fri Sep 11 2026 (Tonight through Saturday night) Satellite imagery reveals something pretty peculiar for this time of year, so soon after the marine layer redeveloped after a couple days of heat: clear skies across most of the Bay Area and Central Coast, as a weak frontal boundary helped to scour out the marine layer clouds over the afternoon and evening hours. Observations from the Bodega Bay profiler suggest that the marine layer itself is still there, hovering around 1000-1500 feet, so it remains to be seen if any of the remaining stratus, most notably the patch on the eastern side of Monterey Bay, can linger through the night, and whether any new stratus can form overnight. Looking at the high resolution output, it doesn`t seem likely and many of us may see the skies remain clear overnight. A strong cutoff low hovers off the coast of the Pacific Northwest, helping contribute to the cooling trend that started Thursday night and continued through the following day. Through Saturday the cutoff low is expected to inch its way into the state of Oregon, helping to tighten the local pressure gradient and building breezy and strong onshore winds in the afternoon and evening hours on Saturday before winds ease Sunday morning. Wind gusts will generally reach 25 to 35 miles per hour, with favored gaps, passes, valleys, and coastal areas seeing gusts to 45 miles per hour. Morning lows will hover in the middle 50s to lower 60s for the lower elevations, and into the middle 60s for the higher elevations. Afternoon highs range from the upper 70s to middle 80s for the inland valleys, up to the 90s in the warmest spots of the far interior Central Coast, the upper 60s to the middle 70s close to the Bays, and the lower to middle 60s along the Pacific coast. && .LONG TERM... Issued at 1017 PM PDT Fri Sep 11 2026 (Sunday through next Friday) The trough axis continues moving eastwards Sunday into the early part of next week, helping to relax the pressure gradient and lower the wind gusts for Sunday. Despite the trough axis moving into the northern Rockies and Plains, some troughing influence will remain across the West Coast, keeping temperatures near to slightly below seasonal averages. The pattern will remain remarkably stable through the remainder of the 7-day outlook. Highs will range from the middle 70s to the middle 80s inland, the upper 60s into the 70s close to the Bays, and the lower to middle 60s along the Pacific coast. Low clouds will likely develop overnight into the morning, while breezy onshore winds will set up in the afternoon and evening hours. Longer- term outlooks suggest a lean towards temperatures above seasonal averages and precipitation totals near to above seasonal averages towards the latter part of September. && .AVIATION... (06Z TAFS) Issued at 1017 PM PDT Fri Sep 11 2026 Much of the region has cleared out through the afternoon and evening hours with a lingering patch of stratus on the east side of Monterey Bay slowly diminishing over the last hour. Confidence in stratus development away from the immediate coast has dropped and would depend on radiational cooling overnight, making the situation difficult to forecast. Highest confidence in stratus development lies on the western side of the San Mateo Peninsula near HAF, the Monterey Bay region, and to a lesser extent, the plain around STS where scattered high clouds may complicate the radiational cooling. Otherwise VFR through the night, with light to gentle winds into Saturday morning. Moderate winds with strong gusts will develop Saturday afternoon. Low confidence in wind speeds and stratus development beginning Saturday evening, as strong winds aloft could mix down and keep winds breezy and stratus at bay well into the night. Vicinity of SFO... Moderate to high confidence that VFR conditions persist through the TAF period. Light to gentle northwest winds persist overnight before strong and gusty winds come to the terminal Saturday afternoon into the evening. SFO Bridge Approach... Similar to SFO. Monterey Bay Terminals... Low confidence in the stratus forecast for the overnight period with a patch of stratus trying to hang on to the north of the terminals. Considered VFR TAFs throughout but can`t rule out a burst of radiationally-driven clouds in the early morning hours. Any stratus that does form clears out Saturday morning after sunrise with breezy northwest winds developing in the afternoon hours. && .MARINE... (Tonight through next Thursday) Issued at 1017 PM PDT Fri Sep 11 2026 Hazardous conditions for small craft prevail late this weekend through the middle of next week. A moderate to fresh northwest breeze will continue to increase to a strong breeze by early Sunday and continue into the early work week. Near gale force gusts to occasional gale force gusts are expected along the inner waters from Pigeon Point to Point Piedras Blancas, the Monterey Bay, and in portions of the San Francisco and San Pablo Bays. Moderate seas will build, becoming rough by Monday in response to the stronger winds. && .FIRE WEATHER... Issued at 429 AM PDT Fri Sep 11 2026 A new weather pattern will influence conditions over the Timber and Plaskett Fires in Monterey County. The marine layer has returned and is 1,600 feet deep as measured by the 12Z balloon. This height should be fairly consistent through the day before some expansion this weekend as the trough moves through. While the marine layer brings much cooler and more humid conditions to the coast, areas above the marine layer often experience nocturnal drying as the dry air above the clouds rolls in simultaneously with the low clouds. In the late morning the clouds will mix out as the layers become less stratified, often increasing dew point during the warmest part of the day. Flynn && .MTR WATCHES/WARNINGS/ADVISORIES... CA...None. PZ...Small Craft Advisory from 9 AM Saturday to 9 AM PDT Sunday for Pigeon Pt to Pt Pinos 0-10 nm-Pt Reyes to Pigeon Pt 0-10 nm- SF Bay N of Bay Bridge. Small Craft Advisory from 9 AM Saturday to 3 AM PDT Sunday for Mry Bay. Small Craft Advisory until 9 AM PDT Sunday for Pt Arena to Pt Reyes 0-10 nm. Small Craft Advisory until 9 PM PDT Saturday for Pt Pinos to Pt Piedras Blancas 0-10 nm. Gale Warning from 9 PM Saturday to 9 AM PDT Sunday for Pt Pinos to Pt Piedras Blancas 0-10 nm. Small Craft Advisory until 9 AM PDT Saturday for Pt Arena to Pt Reyes 10-60 NM. Small Craft Advisory from 3 PM Saturday to 9 AM PDT Sunday for Pigeon Pt to Pt Pinos 10-60 NM. && $$ SHORT TERM...DialH LONG TERM....DialH AVIATION...DialH MARINE...DialH Visit us at www.weather.gov/sanfrancisco Follow us on Facebook, X, and YouTube at: www.facebook.com/nwsbayarea x.com/nwsbayarea www.youtube.com/nwsbayarea

543 FXUS66 KOTX 120619 AFDOTX Area Forecast Discussion National Weather Service Spokane WA 1119 PM PDT Fri Sep 11 2026 .KEY MESSAGES... - Widespread rain returns late Saturday night through Sunday. Most of the Inland Northwest has at least a 70% chance of receiving half an inch or more of rain with this system. - Small risk for debris flows and rock slides in Central Washington near sensitive burn scars and steep terrain. - Isolated thunderstorms Saturday night into Sunday, especially for Eastern Washington and North Idaho. - Warming and drying trend Monday through Friday with temperatures rebounding into the 70s-80s by the end of the week. && .SYNOPSIS... Saturday will be dry through the afternoon, then rain will begin moving in from the southwest late Saturday night, spreading across the region by Sunday morning. Widespread rain chances persist through the day Sunday, accompanied by isolated thunderstorm chances and gusty winds. Conditions trend warmer Monday through Friday as a ridge of high pressure builds over the Inland Northwest. && .DISCUSSION... Saturday morning and afternoon: Conditions will remain dry through much of the day Saturday with afternoon high temperatures in the 70s for most locations. Mid and high level clouds will increase ahead of an incoming low pressure system, bringing overcast skies at times. As the low approaches, a tightening east to northeast pressure gradient will result in breezy northeast winds with sustained speeds of 10-15 mph and gusts around 25 mph across the Idaho Panhandle, West Plains, and Columbia Basin. Saturday night through Sunday night: The aforementioned upper- level low pressure system will track inland, ushering in a stream of moisture-rich air. Strong synoptic forcing combined with the saturated airmass will bring much-needed widespread rainfall across the Inland Northwest. Latest guidance has shifted the heaviest precipitation amounts west and north with the focus now over Central WA. It`s worth noting that models have been inconsistent in their predictions of the track of low and the location of the heaviest precip amounts over the past several days, so it`s very possible that the predictions will change again. There is high confidence that most locations will see measurable precip, but significant uncertainty remains regarding total precip amounts. Overall, rainfall amounts have continued to trend higher, but there are still substantial differences between the high- end and low- end amounts predicted by the models. For example, model runs from this time yesterday showed the 10th percentile (low- end) rain amount forecast for Spokane was 0.1 inches, while the 90th percentile (high- end) amount was 1.4 inches. Today`s model runs have increased the low-end amount to 0.4 inches and the high-end amount to 1.5 inches. Still a big range! The NBM`s chances for 1 inch or more of rain from Saturday evening through Monday morning are as follows: - 50-80% for Central WA - 40-60% for Eastern WA - 40-70% for ID Panhandle Temperatures Sunday will be well below normal in the 50s and 60s. Monday through Thursday: High pressure builds into the region as the weekend system exits to the east. Temperatures will gradually return to near seasonal normals in the 70s to low 80s by late next week with dry conditions expected. Fog potential will be something to monitor Monday morning with a moist boundary layer following all of the weekend rain. /Fewkes && .AVIATION... 06Z TAFS: VFR conditions are expected through the 24 hour period with a blanket of mid and high level clouds across the region. Winds will be light with diurnal influences through 06z. After 06z, we will see a subtle shift toward northeast to north winds which become 10kts or stronger for KSZT-KCOE-KOMK. FORECAST CONFIDENCE AND/OR ALTERNATE SCENARIOS: High confidence for VFR conditions through the period. ----------------------- Confidence descriptors: Low - Less than a 30 percent chance Moderate - 30 to 70 percent chance High - Greater than a 70 percent chance For additional probabilistic information for NWS Spokane airports, please refer to the Aviation Dashboard on our webpage: https:/www.weather.gov/otx/avndashboard && .Preliminary Point Temps/PoPs... Spokane 72 49 56 45 / 0 90 100 70 Coeur d`Alene 70 49 55 45 / 0 70 100 90 Pullman 76 48 56 47 / 0 90 100 90 Lewiston 81 56 65 48 / 0 90 100 80 Colville 77 50 58 46 / 0 50 100 70 Sandpoint 69 48 53 46 / 0 60 100 90 Kellogg 68 46 53 43 / 0 60 100 100 Moses Lake 78 54 60 44 / 0 100 90 20 Wenatchee 77 55 64 49 / 0 100 100 10 Omak 79 54 66 47 / 0 50 90 20 && .OTX WATCHES/WARNINGS/ADVISORIES... WA...None. ID...None. && $$

261 FXUS66 KPDT 120548 AFDPDT Area Forecast Discussion National Weather Service Pendleton OR 1048 PM PDT Fri Sep 11 2026 .Updated Aviation Discussion. .KEY MESSAGES... - Scattered rain showers and Isolated thunderstorms developing Saturday evening and rain showers becoming more numerous though Sunday morning. - Widespread wetting rain Saturday Night and Sunday - Breezy to windy across the eastern Columbia River Gorge Saturday Night and Sunday Morning. && .UPDATE... The incoming system continues to trend towards a wetter scenario, which is advertised by a 20-30% increase in precipitable water via the AI ECMWF ensembles over the last 24 hours. This is a direct result of increased resonance time near a closed low pressure system further offshore over the Eastern Pacific. The delay has also attributed to a stronger transient ridge of high pressure building ahead of this system, which will allow for thunderstorm development across the Blue Mountains and leading to increased potential for heavy downpours in and around fire scars of the Paradise and Hagen wildfires. The REFS suggests convection beginning around 6 PM and extending until shortly after midnight. As a result, a FLOOD WATCH has been issued across both burn scars from Saturday afternoon through Sunday evening as rain rates of around 0.5"/hour may be achieved within a developed rain core. 75 && .DISCUSSION... Regional radar was clear this afternoon with GOES satellite day cloud phase showing thin high level clouds spreading east across the Upper Columbia Basin. Eastern WA Eastern OR, while most of central Oregon and the southern Blue Mts were clear/sunny. The weak zonal flow aloft across the region Today will be disrupted as an upper low spreads onto the Oregon coast by late Saturday Afternoon and Evening, placing the Interior NW under a broad area of PVA advection/diffluence aloft. The showers that are already going on Today west of the Cascades will be diurnal in nature, so no rain is anticipated overnight. Increasingly broad scale lift and moisture transport will promote instability on Saturday, enough so for isolated to widely scattered thunderstorm and widespread wetting rains from few tenths of an inch to potential for over an inch in the Mountain zones though the day on Sunday, once the upper system exits the region. Initially a few showers are possible along the Cascade crest, but everywhere farther east will be dry through about the end the afternoon Saturday. HREF (ensembles) show a ramp up in the mean 1 hourly precipitation fields between about 5 and 9 pm, across the Eastern Slopes, the Columbia Basin and foothills of the Blue Mts. There is nothing all that anomalous with the PWATS for this system. About a 1 standard deviation in precipitable water shows up across the Cascades and the Eastern Mts Saturday afternoon/Evening and spreading north into eastern WA though Sunday morning as the cold conveyor belt lifts across the Palouse. Trends for thunder continue to be pushed back in time as the 12z HREF now shows 4hr calibrated thunder (10 to 30%) around 6z (nearing midnight Saturday) or so for the foothills of the Blues. The period of heaving rainfall will be between midnight Saturday and about noon Sunday with model spreads fairly large. Uncertainty at the Tri-Cities is a range of (using 25th to 75th percentile) anywhere form at least about a quarter of an inch to and inch and and quarter by late Sunday evening. That uncertainty/spread is compressed a bit over the mountain zones. For instance at La Grande where at least one half inch can be expected with a higher outcome around an inch an a quarter of rainfall. Rainfalls of around an inch are fairly likely (above about 60%) for the Paradise/Hagan fire areas. Westerly winds ramp up through the gaps on Saturday evening as well with the stronger period running from around midnight Saturday though late morning Sunday morning. The NBM mean shows potential for sustained winds in excess of 30 mph and gust in excess of 40 mph however these stronger winds are limited to the higher ridge-tops along the Gorge. Most other areas look breezy and falling under the general wind advisory criteria. The wet regime will hamper temperatures Sunday, where mid 60s will be the highest temps across the the Kittitas Valley, central Oregon and parts of the Basin. Dry weather and pleasant temperatures, with not a lot of wind will finish out the balance of the week before NBM trends toward a warmup by the next weekend. && .AVIATION /06Z TAFS THROUGH 06Z SUNDAY/... VFR conditions currently across all sites, which will stay the course through the period. Ceilings drop to around 10kft in the afternoon, with breezy winds of 15-25kts and gusts of 20-30 kts expected early evening. Light rain is anticipated to begin toward the end of the period. 75 && .Preliminary Point Temps/PoPs... PDT 47 76 45 61 / 0 0 90 80 ALW 52 79 49 60 / 0 0 90 90 PSC 50 80 47 63 / 0 0 90 90 YKM 54 76 50 63 / 0 10 90 100 HRI 49 79 46 63 / 0 0 100 80 ELN 48 72 44 59 / 0 0 100 100 RDM 40 71 36 60 / 0 10 80 10 LGD 47 81 44 59 / 0 0 90 80 GCD 46 81 43 59 / 0 0 100 40 DLS 54 77 51 66 / 0 20 90 60 && .PDT WATCHES/WARNINGS/ADVISORIES... WA...Flash Flood Watch from Saturday afternoon through Sunday evening for WAZ030. OR...Flash Flood Watch from Saturday afternoon through Sunday evening for ORZ502. && $$ UPDATE...75 DISCUSSION...71 AVIATION...75

262 FXUS65 KREV 120921 AFDREV Area Forecast Discussion National Weather Service Reno NV 221 AM PDT Sat Sep 12 2026 .KEY MESSAGES... * Strong and potentially damaging winds today and tonight will bring widespread impacts to fire weather, aviation, travel, and recreation. * A notable cooling trend later this weekend through early next week, will be followed by a gradual warm up with dry conditions and lighter winds. && .DISCUSSION... A storm off the Pacific NW coast accompanied by an unusually strong upper level jet streak (120-140 kt at 300 mb) for September will move inland tonight. While the strongest winds with this storm will remain north of the OR border, we`ll still have plenty of wind pushing over the Sierra and into eastern CA-western NV from later this morning through the overnight hours into early Sunday. Wind Advisories remain in place for nearly all of the region, and brief high wind gusts (60+ mph) can`t be ruled out especially in wind prone areas near US-395/I-580 and foothills from eastern Lassen County southward across Reno-Carson Valley and into Mono County. See our latest Wind Advisory statement at weather.gov/reno for more details on expected gusts, impacts and preparedness actions to take, and also the Fire Weather discussion segment below for fire-related impacts from this wind event. Given the timing of the peak 700 mb winds (45-55 kt) reaching the northern Sierra/Tahoe region during this evening with the cold front passage, gusty winds will persist into early Sunday morning. While Mineral/southern Lyon counties are not included in the advisory, a short period of 40+ mph gusts could occur tonight as the front brushes across western NV. For Sunday, gusty winds will linger especially on ridges through the morning, then diminish as the day progresses. For lower elevations, gusts of 25-30 mph are expected through the day behind the early morning cold front passage, with winds shifting to the northwest and eventually to the north by Sunday evening. After one more day of warmer than average temperatures (highs 90+ degrees for the US-95 corridor of west central NV today), highs on Sunday will drop by 10-15 degrees across most of the region. Sunday night`s lows will be more fall-like, with 40s for most lower elevations and 30s near the Sierra. Next week will start off cool with highs mainly in the 70s Monday, then rebound to near mid-September averages in the 80s for most lower elevations and 70s near the Sierra through the remainder of the week. The weather pattern will be quiet overall with dry conditions prevailing and lighter winds most days, although a weaker low pressure may brush across northern NV and kick up the winds a bit around midweek. MJD && .AVIATION... Rough wind conditions for aviation will prevail later this morning through tonight at all main terminals, with 30-40 kt gusts ramping up between 17-19Z and continuing through 03-05Z. Even when surface winds subside later tonight, FL100/ridge top winds will persist with peak gusts to 80 kt from the Tahoe basin northward, and 50-60 kt for Mono County, resulting in continued widespread turbulence and LLWS into Sunday morning. For the remainder of Sunday, winds will be less impactful although the main terminals can still expect gusts to 25 kt until until early evening. Lighter winds are then expected for the bulk of next week, along with VFR conditions prevailing. MJD && .FIRE WEATHER... Fire weather concerns peak today and tonight, with Red Flag Warnings in effect for far northeastern CA and western NV through 2 AM Sunday, so be extra vigilant in avoiding activities that could spark fires. Given the strength of the winds (peak gusts 45+ mph with 55-65 mph for wind prone areas along US-395), the humidity is less of a factor, with the winds capable of rapidly spreading fire even in areas such as northeast CA/northwest NV where humidity is less likely to drop below 15% this afternoon. Farther east and south across western NV and Mono County, humidity is projected to bottom out in the 10-15% range this afternoon, with parts of the Lahontan basin southward to the Chalfant Valley in southern Mono County dipping into the single digits. Gusty winds will continue through late tonight, finally decreasing Sunday morning. Conditions will improve by Sunday afternoon, with winds dropping back to more typical gusts of 20-30 mph. The upcoming week will remain dry with limited humidity recovery especially for midslopes/thermal belts in western NV, but winds will be lighter. MJD && .REV Watches/Warnings/Advisories... NV...Red Flag Warning from 11 AM this morning to 2 AM PDT Sunday NVZ458. Wind Advisory from 11 AM this morning to 2 AM PDT Sunday NVZ002>005. Red Flag Warning from 11 AM this morning to 2 AM PDT Sunday NVZ420-421. Red Flag Warning from 11 AM this morning to 2 AM PDT Sunday NVZ423-429. CA...Red Flag Warning from 11 AM this morning to 2 AM PDT Sunday CAZ270-278. Wind Advisory from 11 AM this morning to 2 AM PDT Sunday CAZ070>073. Red Flag Warning from 11 AM this morning to 2 AM PDT Sunday CAZ274. && $$

810 FXUS66 KSTO 111858 AFDSTO Area Forecast Discussion National Weather Service Sacramento CA 1158 AM PDT Fri Sep 11 2026 For additional details on weather and expected impacts over the next 7 days, please visit weather.gov/sto/briefing. .KEY MESSAGES... - Renewed fire weather conditions over the weekend and into early next week due to gusty winds and low daytime humidity - Red Flag Warning in place for portions of northern California from 11 AM PDT Saturday through 11 AM PDT Monday - Notable cool down over the weekend, with near to below normal temperatures expected && .DISCUSSION... Today-Monday: Mostly clear skies observable today, though as onshore flow increases and the ridging of the past few days breaks down, temperatures are expected to be a bit cooler today than earlier this week. Highs today will still be above normal, with Valley temperatures in the low to mid 90s. Further cooling will occur Saturday as a low progresses inland over the Pacific Northwest. Breezy southerly winds begin this afternoon, with strongest gusts today expected in and near the Delta and over the Sierra Crest. On Saturday, winds will pick up further, with gusts of 25 to 35 mph expected by the late morning/early afternoon. Combined with lingering higher than normal temperatures and low daytime humidities, we`re expecting elevated fire weather conditions in much of northern California. In particular, the northern half of the Sacramento Valley and portions of the northern foothills will see critical fire weather conditions, and so a Red Flag Warning is in place starting Saturday at 11 AM PDT and ending on Monday at 11 AM PDT. Winds will be strongest on Saturday and Sunday afternoons and evenings, with slightly weaker winds in the morning on Sunday as they transition in direction from south and westerly, around to north and easterly. Relative humidities will be generally low, especially in the warned area, around 10 to 25% during the day. Tuesday-Thursday: Tuesday and onward, weak troughing will remain over NorCal, maintaining near normal temperatures and periodically breezy winds. Be sure to follow the forecast at weather.gov for any updates! && .AVIATION... VFR conditions prevail at TAF sites across the forecast period. Winds in most areas will remain at 12 kts or less for the forecast period, except in the Delta and isolated Valley locations. West- southwest winds in the Delta will gust 20 to 25 kts starting at 21z today, northern San Joaquin Valley and Sacramento sites seeing occasional gusts up to 15 kts after 22z. && .STO WATCHES/WARNINGS/ADVISORIES... Red Flag Warning from 11 AM Saturday to 11 AM PDT Monday for Butte County Below 1000 ft-Central Colusa County Incl. I-5- Central Glenn Co & Interstate 5-Eastern Colusa County-Eastern Glenn County-Glenn/Colusa Coast Range Above 3000 ft-N. Sac Valley in Tehama County-Shasta Metro-Sierra (Tehama-Plumas) 1000- 3000 ft-Sutter/Yuba counties below 1000 ft-W. Glenn/Colusa Foothills 1000-3000 ft. && $$

260 FXUS65 KMSO 120846 AFDMSO Area Forecast Discussion National Weather Service Missoula MT 246 AM MDT Sat Sep 12 2026 .DISCUSSION... KEY MESSAGES: - Easterly gap winds early this morning, then strengthening late tonight into Sunday morning. Anticipate choppy lakes and strong canyon winds. - Widespread rain and mountain snow above 7,000 feet late tonight into early Monday, mainly through central Idaho and northwest Montana. - Drying and warming conditions by mid-week. Brisk easterly winds across western Montana will persist through Sunday morning, with gusts up to 30 mph expected near favored canyons, along the western slopes of major terrain, and over regional waters like Flathead Lake. The strongest winds will be most pronounced this evening into early Sunday morning. Otherwise, conditions across western Montana and north central Idaho will remain largely dry and slightly warmer today ahead of an approaching storm system. A strong low pressure system will sweep across the region late tonight through Sunday, bringing widespread showers and isolated thunderstorms. The storm`s northern track favors the heaviest precipitation across north-central Idaho and northwest Montana, where half an inch to over an inch of rain is forecast. Snow levels will fall to around 7,000 feet by Sunday night in these areas. Backcountry recreationists should prepare for cold, wet, and raw conditions that will significantly increase the risk of hypothermia for anyone caught unprepared. Further south and east, including the Missoula area, precipitation amounts will be notably lighter. Southwest Montana will remain mostly dry with gusty westerly winds, resulting in near-critical fire weather conditions. The system will depart to the east by Tuesday, transitioning the region to a generally warmer and drier weather pattern through mid-week. Despite the overall drying trend, a few weak atmospheric disturbances may still trigger isolated, light showers. Tuesday morning has the potential to be quite chilly, particularly in the higher valleys of southwest Montana and along the Continental Divide, where clearing overnight skies may allow temperatures to drop sharply. && .AVIATION...VFR conditions will generally prevail today across western Montana and north central Idaho ahead of an approaching low-pressure system. However, aviation operations will be impacted by brisk easterly winds developing and peaking this evening into early Sunday morning. These winds will produce gusts up to 30 mph near favored canyons and western terrain slopes, likely inducing localized mechanical turbulence and potential low-level wind shear. Flight conditions are expected to deteriorate late tonight through Sunday as widespread showers and isolated thunderstorms overspread the airspace. This incoming system will lead to widespread mountain obscurations and prolonged periods of MVFR to IFR ceilings and visibilities, with the most significant flight impacts concentrated over north-central Idaho and northwest Montana where the heaviest precipitation is forecast. && .MSO WATCHES/WARNINGS/ADVISORIES... MT...Fire Weather Watch from Sunday afternoon through Sunday evening for East Beaverhead. ID...None. && $$

798 FXUS65 KBOI 120927 AFDBOI Area Forecast Discussion National Weather Service Boise ID 327 AM MDT Sat Sep 12 2026 .KEY MESSAGES... - Warm and mostly dry today ahead of a strong cold front late tonight with scattered showers, isolated thunderstorms, high elevation snow, and gusty westerly winds. - Breezy and much cooler Sunday, with lingering showers in northeast OR and the central ID mountains. - Unsettled cool conditions through the middle of next week, then a warming and drying trend likely for the weekend. && .SHORT TERM /Through Monday Night/... Warm and dry conditions will continue for most of the day today, with valley high temperatures climbing to the mid 80s. A strong low pressure system will move into the Pacific Northwest this evening, with an associated cold front moving through the region overnight. The cold front will initially track into southeast Oregon by the late evening, bringing elevated southwest winds with gusts up to 45 mph and scattered showers over Baker County and northern portions of Malheur/Harney County. The front will then progress into southwest Idaho overnight, bringing wind gusts around 35 mph (ridgetop gusts up to 45 mph) and scattered showers northeast of the Snake River Valley. Instability remains weak with surface CAPE values less than 100-150 J/kg, especially given the timing of the frontal passage, but a 10-20% chance of thunderstorms will accompany showers. The best chance for thunderstorms will be over Baker County, OR into Valley County, ID during late evening. Models continue to track the bulk of the moisture and the low center north and west of the region, which further decreases potential for precipitation accumulation. Current forecasts only show 0.25-0.50 inches of precipitation by Sunday morning, a significant reduction compared to previous forecasts. Temperatures will drop for Sunday by about 15-20 degrees, with snow levels dropping down to 6,500-7,500 feet MSL. Minimal snow will fall over higher terrain, with accumulations of less than an inch primarily over the Wallowa/Seven Devils Mountain Ranges. Troughing will continue through Monday, with cool conditions lingering. Patchy valley fog will form in mountain valleys on Sunday and Monday morning. && .LONG TERM /Tuesday through Saturday/... A long wave trough will deepen into the Intermountain West through Wednesday, bringing cool temperatures and a low chance of showers on Wednesday into Thursday. The trough will then move east as a ridge of high pressure will develop over the western US by the latter half of the week. Some model disagreement delays the trough`s exit out of the region, which would keep cool and wet conditions lingering through the end of the work week. However, the bulk of model solutions keep the ridge of high pressure for the weekend, bringing above normal temperatures and dry conditions likely for Friday into Saturday. && .AVIATION /06Z Saturday through Sunday/... Issued 1138 PM MDT FRI SEP 11 2026 VFR through Saturday. Cold front arrives this evening with increasing showers across E Oregon and w-central ID. A 10% chance of lightning. Localized MVFR and mountain obscuration in showers. Surface winds: variable up to 10 kt. Then, SE-SW 5-15 kt this afternoon, with gusts to 25-30 kt in E Oregon and Owyhee Mountains. Winds aloft at 10kft MSL: W-SW 15-30 kt. KBOI...VFR. Surface winds: SE 5-12 kt. Shifting to gusty SW-NW tonight with cold front. Sunday Outlook...Generally VFR. Showers and 10% chance of lightning across E Oregon and w-central Idaho Sunday morning, and again Sunday afternoon. Localized MVFR and mountain obscuration in showers. Patchy mountain valley fog Sunday morning. Snow levels 6500-7500 ft MSL by Sunday morning. Surface winds Sunday: SW-NW 5-15 kt, with PM gusts around 20-25 kt. && .BOI WATCHES/WARNINGS/ADVISORIES... ID...Red Flag Warning from noon today to 9 PM MDT this evening for IDZ423-426. OR...None. && $$ www.weather.gov/Boise Interact with us via social media: www.facebook.com/NWSBoise www.x.com/NWSBoise SHORT TERM...SA LONG TERM....SA AVIATION.....SA

315 FXUS65 KLKN 120701 AAA AFDLKN Area Forecast Discussion...Updated National Weather Service Elko NV 1201 AM PDT Sat Sep 12 2026 .KEY MESSAGES... * Unseasonably warm today * Strong, gusty winds today * Cooler Sunday * Near freezing temperatures in the coldest valleys of Northern and Central Nevada Sunday night && .DISCUSSION... (Today through Friday) WEATHER PATTERN OVERVIEW: Unseasonably warm temperatures continue this afternoon with highs being several degrees above normal. Strong, gusty winds this afternoon and this evening, with sustained winds up to 20-25 mph, and gusts as high as 45 mph. A Red Flag Warning remains in effect for all fire zones due to the strong gusty winds in combination with minimum relative humidity values as low as eight percent. Sunday, wind conditions expected to be much lighter with speeds up to 10-15 mph, gusts as high as 25-30 mph. Temperatures will be several degrees below normal across northern Nevada and parts of central Nevada north of the US-50 corridor, while south of the US-50 corridor still expected to be a few degrees above normal. Highs in northern Nevada will be in the upper 60s to 70s, along the US-50 corridor in the 70s, while south of US-50 corridor in the upper 80s. By the evening into overnight hours, cooler temperatures will extend into the rest of Central Nevada, with temperatures staying near normal, while Northern Nevada will see colder air being several degrees below normal with some areas reaching to near freezing. Monday, wind conditions become light, with speeds generally staying below 10 mph. The cooler temperatures expected to remain across Central and Northern Nevada, with Central Nevada staying at near normal temperatures in the upper 70s to 80s, while Northern Nevada stays a few degrees below normal in the low 70s. Rest of the week, light wind conditions, with a gradual warming in temperatures staying near normal in the mid-week, then warming back to a few degrees above normal by the end of the week. && FORECAST CONFIDENCE & DEVIATIONS: High confidence in unseasonably warm temperatures today. High confidence for Red Flag conditions due to strong gusty winds and low humidity today. Moderate confidence with cooling temperatures trends with some areas dropping to near freezing Sunday night. Moderate confidence to warming temperatures trends next week. && .AVIATION... Look for VFR conditions at all terminals over the next 24 hour period. Strong, gusty southwest winds across all terminals with speeds up to 15-20 kts, gusts 35-40 kts. && .FIRE WEATHER... A Red Flag Warning is in effect throughout Northern and Central Nevada from 11 AM PDT this morning until 11 PM PDT this evening due to southwest wind gusts near 45 mph and minimum relative humidity values as low as eight percent. Elevated fire weather conditions are expected in most of Northern and Central Nevada Sunday due to southwest to west wind gusts near 35 mph and minimum relative humidity values as low as nine percent. && .LKN Watches/Warnings/Advisories... Wind Advisory from 11 AM to 11 PM PDT today NVZ030-031-035. Red Flag Warning from 11 AM to 11 PM PDT today FWZ424-425-426-427-437-438-469-470 && $$ 97