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Red Flag Warning


URGENT - FIRE WEATHER MESSAGE
National Weather Service Riverton WY
1259 PM MDT Sat Jun 29 2024

WYZ280-010100-
/O.UPG.KRIW.FW.A.0001.240630T1800Z-240701T0100Z/
/O.NEW.KRIW.FW.W.0003.240630T1900Z-240701T0100Z/
Natrona County/Casper BLM-
1259 PM MDT Sat Jun 29 2024

...RED FLAG WARNING IN EFFECT FROM 1 PM TO 7 PM MDT SUNDAY...

The National Weather Service in Riverton has issued a Red Flag
Warning, which is in effect from 1 PM to 7 PM MDT Sunday. The Fire
Weather Watch is no longer in effect.

* AFFECTED AREA:
  In Central WY...Fire Weather Zone 280.

* COUNTIES AFFECTED:
  In Central WY...Natrona.

* IMPACTS: Unseasonably warm temperatures, low humidity, and gusty
  southwest wind could cause erratic fire behavior.

* WIND: Southwest 15 to 25 mph with gusts up to 35 mph.

* HUMIDITY: 11 to 14 percent.

* TEMPERATURES: Highs in the lower to mid 90s.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Red Flag Warning means that critical fire weather conditions are
either occurring now....or will shortly. A combination of strong
winds...low relative humidity...and warm temperatures can
contribute to extreme fire behavior.

&&

$$

http://weather.gov/riverton


Air Quality Alert


COC013-123-001-031-059-035-005-014-069-302200-
Boulder-Weld-Adams-Denver-Jefferson-Douglas-Arapahoe-
Broomfield-Larimer-
410 PM MDT Sat Jun 29 2024

...OZONE ACTION DAY ALERT FROM 400 PM SATURDAY UNTIL 400 PM
SUNDAY...

The Colorado Department of Public Health and Environment has
issued the following...

WHAT...Ozone Action Day Alert.

WHERE...Douglas, Jefferson, Denver, western Arapahoe, western
Adams, Broomfield, Boulder, Larimer, and Weld Counties

WHEN...400 PM Saturday June 29 to 400 PM Sunday June 30

IMPACTS...Ozone Action Day Alert is now in effect for the Front
Range Urban Corridor. Request to limit driving gas and diesel-
powered vehicles is now in effect until at least 4 p.m. Sunday,
June 30, 2024.  While Ozone concentrations are expected to remain
in the Good to Moderate range on Saturday, warmer and more
stagnant conditions on Sunday will allow for more Ozone
development. Ozone is expected to reach the Unhealthy for
Sensitive Groups level on Sunday, especially in western portions
of the Front Range Region.For areas included in this advisory that
are not expected to reach the Unhealthy for Sensitive Groups (USG)
air quality designation, we request that activities, such as
driving non-ZEV vehicles (i.e., gas or diesel), be reduced to
lessen the impacts on neighboring air quality. Additional air
pollution in this region may directly worsen air quality or
contribute to precursors which may also adversely affect air
quality. For Colorado air quality conditions, forecasts and
advisories, visit:
https://www.colorado.gov/airquality/colorado_summary.aspx

HEALTH INFORMATION...Increasing likelihood of respiratory symptoms
and breathing discomfort in active children and adults and people
with lung disease, such as asthma. Active children and adults, and
people with lung disease, such as asthma, should reduce prolonged
or heavy outdoor exertion.

$$


Hazardous Weather Outlook


Hazardous Weather Outlook
National Weather Service Rapid City SD
520 AM MDT Sun Jun 30 2024

SDZ001-002-012>014-024>032-041>044-046-047-072>078-WYZ054>060-
011300-
Harding-Northern Perkins-Butte-Northern Meade Co Plains-Ziebach-
Northern Black Hills-Northern Foothills-Rapid City-
Southern Foothills-Central Black Hills-Southern Black Hills-
Custer Co Plains-Pennington Co Plains-Haakon-Western Fall River-
Northern Oglala Lakota-Northern Jackson-Bennett-Mellette-Todd-
Sturgis/Piedmont Foothills-Southern Meade Co Plains-
Hermosa Foothills-Eastern Fall River-Southern Oglala Lakota-
Southern Jackson-Southern Perkins-Northern Campbell-
Southern Campbell-Western Crook-Wyoming Black Hills-
Weston County Plains-Newcastle-Northeastern Crook-
520 AM MDT Sun Jun 30 2024 /620 AM CDT Sun Jun 30 2024/

This Hazardous Weather Outlook is for portions of western South
Dakota and northeastern Wyoming.

.DAY ONE...Today and Tonight

There is a marginal risk (level 1 of 5) of severe thunderstorms
today, meaning that isolated severe storms are possible. Primary
hazards include large hail and damaging winds.

.DAYS TWO THROUGH SEVEN...Monday through Saturday

Severe thunderstorms are possible Monday with large hail and
damaging winds the main threats. Near-daily chances of
thunderstorms will continue through the week.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be needed today.

&&

Stay tuned to NOAA weather radio for further updates...or check
our web site at weather.gov/rapidcity

$$

Hazardous Weather Outlook
National Weather Service North Platte NE
452 AM CDT Sun Jun 30 2024

NEZ004>010-022>029-035>038-056>059-069>071-094-011000-
Sheridan-Eastern Cherry-Keya Paha-Boyd-Brown-Rock-Holt-Garden-Grant-
Hooker-Thomas-Blaine-Loup-Garfield-Wheeler-Arthur-McPherson-Logan-
Custer-Deuel-Keith-Perkins-Lincoln-Chase-Hayes-Frontier-
Western Cherry-
452 AM CDT Sun Jun 30 2024 /352 AM MDT Sun Jun 30 2024/

This Hazardous Weather Outlook is for portions of western and north
central Nebraska.

.DAY ONE...Today and tonight.

Isolated thunderstorms may be this evening into the overnight, with a
marginal risk of a strong to severe storm, generally along and west
of HWY 61.


.DAYS TWO THROUGH SEVEN...Monday through Saturday.

Severe thunderstorms are possible Monday afternoon and evening with
damaging winds, large hail and even a few tornadoes possible. There
will also be slight chances for thunderstorms Tuesday, with a better
chance for more widespread thunderstorms on Wednesday.



.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

$$

Hazardous Weather Outlook
National Weather Service Grand Junction CO
350 AM MDT Sun Jun 30 2024

COZ001>014-017>023-UTZ022>025-027>029-011000-
Lower Yampa River Basin-Central Yampa River Basin-
Roan and Tavaputs Plateaus-Elkhead and Park Mountains-
Upper Yampa River Basin-Grand Valley-Debeque to Silt Corridor-
Central Colorado River Basin-Grand and Battlement Mesas-
Gore and Elk Mountains/Central Mountain Valleys-
Central Gunnison and Uncompahgre River Basin-
West Elk and Sawatch Mountains-Flat Tops-Upper Gunnison River Valley-
Uncompahgre Plateau and Dallas Divide-Northwest San Juan Mountains-
Southwest San Juan Mountains-Paradox Valley/Lower Dolores River-
Four Corners/Upper Dolores River-Animas River Basin-
San Juan River Basin-Southeast Utah-Eastern Uinta Mountains-
Eastern Uinta Basin-Tavaputs Plateau-Arches/Grand Flat-
La Sal and Abajo Mountains-Canyonlands/Natural Bridges-
350 AM MDT Sun Jun 30 2024

This Hazardous Weather Outlook is for northwest Colorado, southwest
Colorado, west central Colorado, east central Utah, northeast Utah
and southeast Utah.

.DAY ONE...Today and tonight.

Monsoonal moisture will remain over the area providing the means
necessary for thunderstorm development. Some of these storms this
afternoon will be capable of producing hail bigger than dimes and
wind gusts over 50 mph. The main threat however will be rainfall
rates over 1"/hr that could produce excess runoff and flooding. The
flooding threat will linger through overnight hours along with
thunderstorm development especially over southwest Colorado and
southeast Utah.

.DAYS TWO THROUGH SEVEN...Monday through Saturday.

Thunderstorm development...with hail...gusty winds and heavy
rainfall...remains a threat into Monday before the monsoonal moisture
plume is pushed out of the area by drier air. Isolated afternoon
thunderstorm development will be possible over the southern mountains
through mid week. As the drier air becomes more entrenched late in
the week...elevated fire weather concerns will be possible.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be needed the next few afternoons due to the
threat of flooding and stronger thunderstorms.

$$

Hazardous Weather Outlook
National Weather Service Denver/Boulder CO
327 AM MDT Sun Jun 30 2024

COZ030>051-010930-
Jackson County Below 9000 Feet-
West Jackson and West Grand Counties Above 9000 Feet-
Grand and Summit Counties Below 9000 Feet-
South and East Jackson/Larimer/North and Northeast Grand/
Northwest Boulder Counties Above 9000 Feet-
South and Southeast Grand/West Central and Southwest Boulder/
Gilpin/Clear Creek/Summit/North and West Park Counties Above
9000 Feet-Larimer and Boulder Counties Between 6000 and 9000 Feet-
Jefferson and West Douglas Counties Above 6000 Feet/Gilpin/Clear
Creek/Northeast Park Counties Below 9000 Feet-
Central and Southeast Park County-
Larimer County Below 6000 Feet/Northwest Weld County-
Boulder And Jefferson Counties Below 6000 Feet/West Broomfield
County-
North Douglas County Below 6000 Feet/Denver/West Adams and
Arapahoe Counties/East Broomfield County-
Elbert/Central and East Douglas Counties Above 6000 Feet-
Northeast Weld County-Central and South Weld County-Morgan County-
Central and East Adams and Arapahoe Counties-
North and Northeast Elbert County Below 6000 Feet/North Lincoln
County-
Southeast Elbert County Below 6000 Feet/South Lincoln County-
Logan County-Washington County-Sedgwick County-Phillips County-
327 AM MDT Sun Jun 30 2024


This hazardous weather outlook is for northeast and north central
Colorado.

.DAY ONE...Today and Tonight

Scattered afternoon showers and thunderstorms are expected today.
A few storms could become strong to severe, with large hail and
gusty winds possible. Temperatures will be warmer across the I-25
corridor with highs returning to the low to mid 90s.

.DAYS TWO THROUGH SEVEN...Monday through Saturday

Scattered afternoon showers and storms are likely Monday afternoon
mainly for the high country and Palmer Divide. Storms become
isolated along the eastern plains by Monday evening. Similar
conditions will occur Tuesday.

High based isolated showers and storms are possible mainly across
the plains for July 4th. Chances for showers and storms will
gradually decrease towards the end of the week.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed today or tonight.

$$

Hazardous Weather Outlook
National Weather Service Riverton WY
210 AM MDT Sun Jun 30 2024

WYZ001>020-022>030-011300-
Yellowstone National Park-Absaroka Mountains-Cody Foothills-
North Bighorn Basin-Southwest Bighorn Basin-Southeast Bighorn Basin-
Owl Creek and Bridger Mountains-Bighorn Mountains West-
Bighorn Mountains Southeast-Northeast Johnson County-
Southeast Johnson County-Teton and Gros Ventre Mountains-
Jackson Hole-Wind River Mountains West-Wind River Mountains East-
Upper Wind River Basin-Wind River Basin-Lander Foothills-
Green Mountains and Rattlesnake Range-
Natrona County Lower Elevations-Casper Mountain-Star Valley-
Salt River and Wyoming Ranges-Upper Green River Basin Foothills-
Upper Green River Basin-South Lincoln County-
Rock Springs and Green River-Flaming Gorge-East Sweetwater County-
210 AM MDT Sun Jun 30 2024

...Red Flag Warning in Effect Sunday Afternoon for the Lower
Elevations of Natrona County...

This Hazardous Weather Outlook is for Western and Central Wyoming.

.DAY ONE...Today and tonight.

Elevated to critical fire weather conditions, with very dry
air and gusty southwest wind. Temperatures will be above normal,
with daytime highs topping out between 90 and 100 east of the
Continental Divide, and 80s west. Isolated showers and storms over
portions of central and southern Wyoming may bring gusty outflow up
to 50 mph.

.DAYS TWO THROUGH SEVEN...Monday through Saturday.

Monday and Tuesday...A storm system brings shower and thunderstorm
chances, mainly across the northern half of the area.

.SPOTTER INFORMATION STATEMENT...

Weather spotters are encouraged to report significant weather
conditions according to Standard Operating Procedures.

$$

Hazardous Weather Outlook
National Weather Service Cheyenne WY
546 AM MDT Sat Jun 29 2024

NEZ002-003-019>021-054-055-095-096-WYZ101>119-301200-
Dawes County-Box Butte County-Scotts Bluff County-Banner County-
Morrill County-Kimball County-Cheyenne County-
Northern Sioux County-Southern Sioux County-
Converse County Lower Elevations-Niobrara County-
North Laramie Range-Ferris/Seminoe/Shirley Mountains-
Shirley Basin-Central Laramie Range and Southwest Platte County-
East Platte County-Goshen County-Central Carbon County-
North Snowy Range Foothills-Southwest Carbon County-
Sierra Madre Range-Upper North Platte River Basin-Snowy Range-
Laramie Valley-South Laramie Range-South Laramie Range Foothills-
Central Laramie County-East Laramie County-
546 AM MDT Sat Jun 29 2024

This hazardous weather outlook is for portions of panhandle
Nebraska...east central Wyoming...south central Wyoming and
southeast Wyoming.

.DAY ONE...TODAY AND TONIGHT

Isolated to widely scattered thunderstorms are expected
today...mainly in the mountains. These storms are not expected to
become severe.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY

Showers and thunderstorms return to the forecast Sunday. A few of
these storms could become severe with large hail and damaging
downburst winds Sunday afternoon and evening east of Interstate
25.

Expect daily chances for afternoon and evening thunderstorms for
the upcoming work week...mainly east of Interstate 25.

.Spotter information statement...

Spotter activation will not be needed.

$$

U.S. Dept. of Commerce
NOAA National Weather Service
1325 East West Highway
Silver Spring, MD 20910
E-mail: w-nws.webmaster@noaa.gov
Page last modified: June 2, 2009
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