National Weather Service United States Department of Commerce

Aviation Forecast Discussion

.AVIATION... 
06Z TAFS: VFR conditions are currently in place as an upper level
ridge sits over the region. Tonight northeast boundary layer 
winds and continued boundary layer moisture over NE WA/N Idaho 
Panhandle will allow for areas of shallow fog and stratus to 
redevelop, with KGEG/KSFF/KCOE the most likely of the TAF sites to
be impacted by MVFR to IFR visibilities. If it develops, fog and 
stratus would improve to VFR by 16Z. The ridge will begin to break
down Wednesday afternoon with the potential for strong to severe 
thunderstorms emerging after 00Z Thursday. This will bring the 
potential for strong and erratic wind gusts and LLWS along with 
isolated hail up to a quarter inch in diameter. 

FORECAST CONFIDENCE AND/OR ALTERNATE SCENARIOS: There is low to
moderate confidence for a few hours of fog and stratus to 
redevelop overnight for KGEG/KSFF/KCOE. There is potential (5%
chance) for strong to severe thunderstorms after 00Z Thursday at 
all TAF sites, but confidence for any specific TAF site is low.

-----------------------
Confidence descriptors:
Low - Less than a 30 percent chance 
Moderate - 30 to 70 percent chance
High - Greater than a 70 percent chance

&&

Latest GEG Terminal Aerodrome Forecast (TAF)

FTUS44 KGEG 260521 RRA
KGEG 260520Z 2606/2706 07003KT P6SM SCT250
     FM260900 VRB02KT 3SM BR BCFG SCT001
     FM261600 08007KT P6SM SCT250
     FM270000 10006KT P6SM OVC250

Latest Area Terminal Aerodrome Forecasts (TAFs)

FTUS44 KSFF 260521 RRB
KSFF 260520Z 2606/2706 00000KT P6SM SCT250
     FM260900 06002KT 3SM BR BCFG SCT001
     FM261600 10004KT P6SM SCT250
     FM270000 12004KT P6SM OVC250

FTUS46 KOTX 260520
TAFCOE
TAF
KCOE 260520Z 2606/2706 06007KT P6SM SCT250
     FM260900 04010KT 5SM BR SCT002
     FM261600 04012KT P6SM SCT250
     FM270000 06007KT P6SM BKN250=

FTUS54 KPUW 260521 RRB
KPUW 260520Z 2606/2706 10010KT P6SM FEW250
     FM270000 10006KT P6SM BKN250

FTUS46 KOTX 260520
TAFLWS
TAF
KLWS 260520Z 2606/2706 11007KT P6SM FEW250
     FM270000 10008KT P6SM BKN250=

FTUS44 KMWH 260521 RRA
KMWH 260520Z 2606/2706 02005KT P6SM SCT250
     FM260800 36007KT P6SM FEW100 SCT250
     FM261800 VRB05KT P6SM SCT250
     FM270000 VRB06KT P6SM OVC250

FTUS80 KEAT 260521 RRJ
KEAT 260520Z 2606/2706 29006KT P6SM FEW250
     FM262000 14004KT P6SM SCT250
     FM270000 14005KT P6SM BKN250
     FM270300 31011KT P6SM -RA OVC100

FTUS80 KSEA 260854 AAA
KSEA 260851Z 2609/2712 35009KT P6SM SCT250
     FM261100 04006KT 1SM BR BKN005
     FM261800 01008KT P6SM FEW100 BKN250
     FM262300 28013G25KT 4SM TSRA OVC020CB
     FM270300 20007KT P6SM -SHRA BKN020 OVC030

FTUS44 KBOI 260521
KBOI 260520Z 2606/2706 13010KT P6SM SCT200
      TEMPO 2620/2624 13015G25KT

FTUS80 KPDT 260527 RRD
KPDT 260524Z 2606/2706 13006KT P6SM FEW100 FEW250
     FM261700 34008KT P6SM FEW100 SCT250
     FM270200 18008KT P6SM FEW060 BKN120 BKN250 PROB30 2702/2705
      -TSRA BKN050 OVC100CB

FTUS80 KALW 260527
KALW 260524Z 2606/2706 14007KT P6SM FEW100 SCT250
     FM261800 21005KT P6SM FEW100 SCT250
     FM270100 13009KT P6SM FEW060 BKN120 BKN250 PROB30 2702/2706
      -TSRA BKN050 OVC100CB

FTUS80 KPSC 260527 RRE
KPSC 260524Z 2606/2706 34004KT P6SM FEW250
     FM262100 02006KT P6SM FEW100 FEW250
     FM270200 VRB06KT P6SM BKN120 BKN250 PROB30 2702/2706 -TSRA
      BKN050 OVC100CB

FTUS80 KYKM 260527 RRG
KYKM 260524Z 2606/2706 28007KT P6SM FEW100 SCT250
     FM261800 13005KT P6SM FEW100 SCT250
     FM270100 VRB06KT P6SM -SHRA BKN050 OVC100 PROB30 2701/2705
      -TSRA BKN050 OVC100CB

FTUS80 KDLS 260527 RRA
KDLS 260524Z 2606/2706 VRB02KT P6SM FEW100 SCT250
     FM261700 08008KT P6SM FEW100 BKN250
     FM270100 31015KT P6SM -SHRA BKN050 OVC100 PROB30 2701/2706
      -TSRA BKN050 OVC100CB

FTUS46 KPDT 260524
TAFBDN
TAF
KBDN 260524Z 2606/2706 VRB05KT P6SM FEW100 SCT250
     FM260800 21008KT P6SM SCT250
     FM261800 20015G25KT P6SM SCT100 BKN250 PROB30 2622/2704 -TSRA
      BKN050 OVC100CB
     FM270400 18009KT P6SM VCSH BKN040 OVC080=

FTUS44 KMSO 260521 RRA
KMSO 260520Z 2606/2706 35006KT P6SM SCT080 SCT150
     FM261200 00000KT 5SM BR VCFG SCT025
     FM261600 15005KT P6SM SKC
     FM262200 11005KT P6SM SCT150

FTUS43 KBTM 260521
KBTM 260520Z 2606/2706 16006KT P6SM SCT150
     FM261800 34005KT P6SM SKC

FTUS80 KSMN 260521 RRX
KSMN 260520Z 2606/2706 VRB04KT P6SM FEW150

FTUS44 KGPI 260809 AAA
KGPI 260757Z 2608/2706 VRB03KT 6SM BR VCFG SCT001
     FM261600 15007KT P6SM SCT030
     FM261900 12008KT P6SM BKN250

Raw METARs for WFO OTX CWA and Surrounding Areas

--TAFs--TimeTTdRHHIWCDirWindGPKVisWxPcpClouds
KGEG0845Z52468260610
KSFF0845Z524682calm10CLR
KCOE0845Z46461004170910CLR
KPUW0845Z5443671001010CLR
KLWS0845Z574667801010CLR
KMWH0845Z50468847360810CLR
KEAT0845Z524682300810CLR
--WA--TimeTTdRHHIWCDirWindGPKVisWxPcpClouds
KS520835Z393895calm10SCT065
SCT090
SCT110
KOMK0845Z5045824710810CLR
KS10
KEPH0845Z50458245101210CLR
K63S0835Z3636100calm10FEW028
SCT095
BKN120
KDEW0845Z48469446350510CLR
KSKA0755Z5046864870610CLR
--ID--TimeTTdRHHIWCDirWindGPKVisWxPcpClouds
K65S0835Z4545100calm1 3/4 BROVC003
KSZT0835Z3737100calm1/2 FGOVC002
KMLP0845Z46346244190510CLR
-PDT TAFs-TimeTTdRHHIWCDirWindGPKVisWxPcpClouds
KPDT0845Z55436390510CLR
KALW0845Z614352calm10CLR
KPSC0845Z524888330510CLR
KYKM0845Z48438245290610CLR
KDLS0845Z545088calm10CLR
KRDM0845Z504376calm10BKN100
KBDN0835Z48438245210610OVC095
-MSO TAFs-TimeTTdRHHIWCDirWindGPKVisWxPcpClouds
KMSO0845Z433676calm10CLR
KBTM0845Z302786calm10CLR
KSMN0845Z373281calm10CLR
KGPI0849Z373710029031 BRVV001
KHRF0830Z46346242190810CLR
-Misc-TimeTTdRHHIWCDirWindGPKVisWxPcpClouds
KSEA0845Z5252100360910CLR
KSMP0826Z434310040VRB53/4 BRVV002
KRLD0835Z545189calm10CLR
KGIC0835Z4334714060510CLR
K1S50835Z494587calm10CLR
KHRI0845Z52488890510CLR
KP690752Z424210039105

Lowest Expected Flight Category Forecasts - EXPERIMENTAL

 

•This site is for informational purposes. It should be used with other preflight information sources needed to satisfy all the requirements of 14 CFR 91.103. It is NOT designed to be used as a primary or sole source of information for preflight action. Refer to Flight Service for more information.

 
0-1 hr Ceiling Forecast 0-1 hr Visibility Forecast

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1-2 hr Ceiling Forecast 1-2 hr Visibility Forecast

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2-3 hr Ceiling Forecast 2-3 hr Visibility Forecast

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3-4 hr Ceiling Forecast 3-4 hr Visibility Forecast

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4-5 hr Ceiling Forecast 4-5 hr Visibility Forecast

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5-6 hr Ceiling Forecast 5-6 hr Visibility Forecast

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6-12 hr Ceiling Forecast 6-12 hr Visibility Forecast

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12-18 hr Ceiling Forecast 12-18 hr Visibility Forecast

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18-24 hr Ceiling Forecast 18-24 hr Visibility Forecast

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HREF Ceiling Probabilities - EXPERIMENTAL

 

•These plots are produced by HREF ensemble guidance and are for informational purposes. It should be used with other preflight information sources needed to satisfy all the requirements of 14 CFR 91.103. It is NOT designed to be used as a primary or sole source of information for preflight action. Refer to Flight Service for more information.

 
0-1 hr Probability of Ceiling < 1000 ft 0-1 hr Probability of Ceiling < 2000 ft 0-1 hr Probability of Ceiling < 3000 ft

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1-2 hr Probability of Ceiling < 1000 ft 1-2 hr Probability of Ceiling < 2000 ft 1-2 hr Probability of Ceiling < 3000 ft

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2-3 hr Probability of Ceiling < 1000 ft 2-3 hr Probability of Ceiling < 2000 ft 2-3 hr Probability of Ceiling < 3000 ft

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3-4 hr Probability of Ceiling < 1000 ft 3-4 hr Probability of Ceiling < 2000 ft 3-4 hr Probability of Ceiling < 3000 ft

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4-5 hr Probability of Ceiling < 1000 ft 4-5 hr Probability of Ceiling < 2000 ft 4-5 hr Probability of Ceiling < 3000 ft

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5-6 hr Probability of Ceiling < 1000 ft 5-6 hr Probability of Ceiling < 2000 ft 5-6 hr Probability of Ceiling < 3000 ft

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6-12 hr Probability of Ceiling < 1000 ft 6-12 hr Probability of Ceiling < 2000 ft 6-12 hr Probability of Ceiling < 3000 ft

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12-18 hr Probability of Ceiling < 1000 ft 12-18 hr Probability of Ceiling < 2000 ft 12-18 hr Probability of Ceiling < 3000 ft

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18-24 hr Probability of Ceiling < 1000 ft 18-24 hr Probability of Ceiling < 2000 ft 18-24 hr Probability of Ceiling < 3000 ft

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HREF Visibility Probabilities - EXPERIMENTAL

 

•These plots are produced by HREF ensemble guidance and are for informational purposes. It should be used with other preflight information sources needed to satisfy all the requirements of 14 CFR 91.103. It is NOT designed to be used as a primary or sole source of information for preflight action. Refer to Flight Service for more information.

 
0-1 hr Probability of Visibility < 0.25 mi 0-1 hr Probability of Visibility < 0.5 mi 0-1 hr Probability of Visibility < 1 mi

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1-2 hr Probability of Visibility < 0.25 mi 1-2 hr Probability of Visibility < 0.5 mi 1-2 hr Probability of Visibility < 1 mi

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2-3 hr Probability of Visibility < 0.25 mi 2-3 hr Probability of Visibility < 0.5 mi 2-3 hr Probability of Visibility < 1 mi

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3-4 hr Probability of Visibility < 0.25 mi 3-4 hr Probability of Visibility < 0.5 mi 3-4 hr Probability of Visibility < 1 mi

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4-5 hr Probability of Visibility < 0.25 mi 4-5 hr Probability of Visibility < 0.5 mi 4-5 hr Probability of Visibility < 1 mi

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5-6 hr Probability of Visibility < 0.25 mi 5-6 hr Probability of Visibility < 0.5 mi 5-6 hr Probability of Visibility < 1 mi

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6-12 hr Probability of Visibility < 0.25 mi 6-12 hr Probability of Visibility < 0.5 mi 6-12 hr Probability of Visibility < 1 mi

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12-18 hr Probability of Visibility < 0.25 mi 12-18 hr Probability of Visibility < 0.5 mi 12-18 hr Probability of Visibility < 1 mi

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18-24 hr Probability of Visibility < 0.25 mi 18-24 hr Probability of Visibility < 0.5 mi 18-24 hr Probability of Visibility < 1 mi

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0-1 hr Probability of Visibility < 2 mi 0-1 hr Probability of Visibility < 4 mi

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1-2 hr Probability of Visibility < 2 mi 1-2 hr Probability of Visibility < 4 mi

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2-3 hr Probability of Visibility < 2 mi 2-3 hr Probability of Visibility < 4 mi

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3-4 hr Probability of Visibility < 2 mi 3-4 hr Probability of Visibility < 4 mi

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4-5 hr Probability of Visibility < 2 mi 4-5 hr Probability of Visibility < 4 mi

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5-6 hr Probability of Visibility < 2 mi 5-6 hr Probability of Visibility < 4 mi

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6-12 hr Probability of Visibility < 2 mi 6-12 hr Probability of Visibility < 4 mi

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12-18 hr Probability of Visibility < 2 mi 12-18 hr Probability of Visibility < 4 mi

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18-24 hr Probability of Visibility < 2 mi 18-24 hr Probability of Visibility < 4 mi

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KOTX Radar Loop

KOTX Radar

KATX Radar Loop

KATX Radar

KPDT Radar Loop

KPDT Radar

KMSX Radar Loop

KMSX Radar

GeoColor

GeoColor Image

Visible Satellite

Visible Image

Day Cloud Phase - Night Microphysics

Day Cloud Phase Night Microphysics Image

Infrared Satellite

Infrared Image

ZSE Briefing

ZNY Briefing

Turbulence PIREPs

Turbulence PIREPs

Icing PIREPs

Icing PIREPs

Weather/Sky PIREPs

Weather/Sky PIREPs

Current SIGMETs

Current SIGMETs

Sierra (Mountains/IFR) AIRMETs

Current 3-hr Forecast 6-hr Forecast

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9-hr Forecast 12-hr Forecast

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Tango (Turbulence/LLWS) AIRMETs

Current 3-hr Forecast 6-hr Forecast

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9-hr Forecast 12-hr Forecast

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Icing AIRMETs

Current 3-hr Forecast 6-hr Forecast

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9-hr Forecast 12-hr Forecast

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Freezing Level AIRMETs

Current 3-hr Forecast 6-hr Forecast

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9-hr Forecast 12-hr Forecast

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Legend

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