Tracking Winter Weather and Frigid Temperatures Through This Weekend

A clipper storm will move across the Great Lakes through this weekend with periods of light snow, gusty winds, and lake effect snow bands which could make for hazardous travel at times. A frigid airmass will spread eastward behind this storm into the Midwest and Eastern U.S. through the weekend. Read More >

Discussion
GEG TAF
Other TAFs
METARs
Graphical Forecast
HREF Cig Probs
HREF Vsby Probs
Radar
Satellite
ZSE Brief
PIREPs
AIRMETs/SIGMETs
Soaring
Resources

Aviation Forecast Discussion

.AVIATION... 00Z TAFs: Persistent and widespread low stratus with areas of fog will continue through the TAF period, with a mix of IFR and MVFR conditions. Areas that are largely cloud-free aside from passing cirrus at the moment are up the Methow Valley (KS52) and Okanogan Valley (KOMK), though some low cloudiness could expand and fill in across these valley locations as well overnight. Expect stratus cover to slosh around a bit, but continue to have a presence over the Inland Northwest through this weekend. FORECAST CONFIDENCE AND/OR ALTERNATE SCENARIOS: High confidence is areas of persistent low stratus to continue. Low confidence in where areas of dense fog may again develop overnight. /KD ----------------------- 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 &&

Latest GEG Terminal Aerodrome Forecast (TAF)

FTUS80 KGEG 162339 RRA
KGEG 162337Z 1700/1724 VRB03KT 6SM BR OVC007
     FM170200 04004KT 2SM BR OVC005
     FM170600 04004KT 1/2SM FZFG OVC002
     FM171900 VRB02KT 4SM BR OVC003
     FM172100 VRB02KT 6SM BR SCT005 OVC009

Latest Area Terminal Aerodrome Forecasts (TAFs)

FTUS80 KSFF 162339 RRB
KSFF 162337Z 1700/1724 02002KT P6SM BKN009 OVC015
     FM170300 00000KT P6SM OVC020
     FM170600 00000KT 5SM BR SCT007 OVC010
     FM171800 VRB02KT P6SM SCT012 OVC017

FTUS46 KOTX 162337
TAFCOE
TAF
KCOE 162337Z 1700/1724 02004KT P6SM OVC015
     FM170600 05005KT 6SM BR SCT007 OVC012
     FM171200 00000KT 5SM BR SCT002 OVC007
     FM172100 00000KT P6SM SCT009 BKN022=

FTUS54 KPUW 162339
KPUW 162337Z 1700/1724 VRB03KT P6SM OVC004
     FM170300 08003KT 4SM BR OVC003
     FM171000 00000KT 1 1/2SM BR OVC002
     FM171900 12005KT 6SM BR OVC006

FTUS46 KOTX 162337
TAFLWS
TAF
KLWS 162337Z 1700/1724 22004KT P6SM VCFG SCT007 OVC012
     FM170300 VRB03KT 5SM BR VCFG OVC006
     FM171700 00000KT P6SM SCT007 BKN015=

FTUS80 KMWH 162339 RRB
KMWH 162337Z 1700/1724 05005KT P6SM OVC008
     FM170700 36004KT 5SM BR OVC006
     FM171200 VRB03KT 2SM BR OVC003
     FM171900 VRB03KT 5SM BR OVC006

FTUS80 KEAT 162339 RRA
KEAT 162337Z 1700/1724 VRB03KT 6SM BR SCT002 OVC005
     FM171000 30003KT 1SM BR OVC002
     FM171800 00000KT 4SM BR SCT002 OVC004
     FM172100 VRB02KT 6SM BR SCT004 OVC007

FTUS80 KSEA 162321 RRX
KSEA 162320Z 1700/1806 36013KT P6SM FEW250
     FM170300 04010KT P6SM SCT020 SCT250
     FM170600 04009KT P6SM OVC018
     FM170900 05008KT 2SM BR OVC005
     FM171800 03005KT P6SM FEW250
     FM180500 03004KT P6SM FEW010 SCT250

FTUS80 KBOI 162336
KBOI 162334Z 1700/1724 15006KT P6SM SCT010
      TEMPO 1702/1706 2SM BR BKN010
     FM170600 VRB03KT 1/2SM FZFG OVC003
     FM171500 14007KT 6SM BR BKN010
     FM172100 32005KT P6SM SCT005

FTUS80 KPDT 162342 RRF
KPDT 162339Z 1700/1724 34003KT 6SM BR OVC005
     FM170200 VRB03KT 1/4SM FG OVC002

FTUS80 KALW 162342
KALW 162339Z 1700/1724 VRB03KT 6SM BR OVC008
     FM170600 VRB03KT 1/2SM FG OVC002

FTUS80 KPSC 162342 RRF
KPSC 162339Z 1700/1724 33004KT P6SM OVC015
     FM170600 34003KT 3SM BR OVC007

FTUS80 KYKM 162342 RRG
KYKM 162339Z 1700/1724 VRB04KT 3SM BR OVC005
     FM170200 25004KT 1/4SM FZFG OVC002

FTUS54 KDLS 170115 AAA
KDLS 170112Z 1701/1724 10004KT P6SM FEW009
     FM170900 10004KT 6SM BR OVC015
     FM171200 11004KT 1/4SM FG OVC003

FTUS46 KPDT 170103 AAA
TAFBDN
TAF AMD
KBDN 170103Z 1701/1724 VRB02KT 1/4SM FZFG OVC003
     FM171900 VRB02KT 3SM BR OVC005=

FTUS80 KMSO 162333 RRC
KMSO 162331Z 1700/1724 VRB03KT P6SM SKC
     FM171000 00000KT 2SM BR SCT005
      TEMPO 1713/1717 3/4SM BR BKN005

FTUS54 KBTM 162333
KBTM 162331Z 1700/1724 VRB03KT P6SM FEW120

FTUS80 KSMN 170100 AAA
KSMN 170058Z 1701/1724 VRB02KT 1/2SM FZFG OVC002
     FM171900 00000KT 6SM BR OVC002

FTUS80 KGPI 162333 RRA
KGPI 162331Z 1700/1724 02003KT P6SM SKC
     FM170700 00000KT 2SM BR FEW005
      TEMPO 1711/1715 3/4SM BR BKN004
     FM171500 VRB02KT 5SM BR OVC006
     FM172000 VRB03KT P6SM OVC010

Raw METARs for WFO OTX CWA and Surrounding Areas

--TAFs--	Time	T	Td	RH	HI	WC	Dir	Wind	G	PK	Vis	Wx	Pcp	Clouds
KGEG	0100Z	32	28	87		27	30	5			10			OVC009
KSFF	0100Z	34	30	87				calm			10			OVC011
KCOE	0100Z	34	28	81		29	350	6			10			OVC013
KPUW	0100Z	30	30	100			60	3			9			OVC003
KLWS	0100Z	36	30	81			290	3			10			OVC016
KMWH	0055Z	32	28	87			290	3			10			OVC009
KEAT	0055Z	30	30	100		23	100	7			10			OVC004
--WA--	Time	T	Td	RH	HI	WC	Dir	Wind	G	PK	Vis	Wx	Pcp	Clouds
KS52	0055Z	26	23	88		20	310	5			10			BKN095 BKN120
KOMK	0055Z	34	30	87				calm			10			CLR
KS10
KEPH	0055Z	30	28	93				calm			10			OVC006
K63S	0055Z	28	28	100				calm			10			OVC005
KDEW	0100Z	30	28	93		25	360	5			10			OVC010
KSKA	0055Z	31	29	94				calm			10			OVC007
--ID--	Time	T	Td	RH	HI	WC	Dir	Wind	G	PK	Vis	Wx	Pcp	Clouds
K65S	0055Z	32	27	80		27	70	5			10			OVC017
KSZT	0050Z	32	28	87				calm			10			BKN019
KMLP	0100Z	27	19	74				calm			10			CLR
-PDT TAFs-	Time	T	Td	RH	HI	WC	Dir	Wind	G	PK	Vis	Wx	Pcp	Clouds
KPDT	0055Z	30	28	93			140	3			10			OVC006
KALW	0055Z	34	30	87				calm			10			OVC008
KPSC	0055Z	37	32	81				calm			10			OVC015
KYKM	0055Z	30	30	100		24	170	6			10			OVC004
KDLS	0055Z	39	34	81		31	70	13			10			FEW031
KRDM	0056Z	30	30	100			VRB	3			1/4	FZFG		VV002
KBDN	0035Z	32	30	93			300	3			M1/4	FZFG		OVC003
-MSO TAFs-	Time	T	Td	RH	HI	WC	Dir	Wind	G	PK	Vis	Wx	Pcp	Clouds
KMSO	0100Z	32	23	69		27	270	5			10			CLR
KBTM	0100Z	28	16	59				calm			10			CLR
KSMN	0100Z	21	19	93			230	3			3/4	BR		OVC002
KGPI	0100Z	28	21	74				calm			10			CLR
KHRF	0035Z	28	23	80				calm			10			CLR
-Misc-	Time	T	Td	RH	HI	WC	Dir	Wind	G	PK	Vis	Wx	Pcp	Clouds
KSEA	0055Z	48	36	62		43	360	13			10			CLR
KSMP	0056Z	30	25	82		24	40	6			10			CLR
KELN	0055Z	30	28	93				calm			M1/4	FZFG		VV001
K1YT	0055Z	31	31	97			320	3			1/2	FZFG		VV002
KRLD	0055Z	38	35	88			320	3			10			OVC017
KGIC	0055Z	28	28	100				calm			1/4			OVC003
K1S5	0055Z	35	31	87				calm			10			OVC012
KHRI	0055Z	36	30	81				calm			10			OVC012
KP69	0052Z	36	32	86		30	180	7

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

HREF Visibility Probabilities - EXPERIMENTAL

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

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

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

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

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

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

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

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

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


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

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

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

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

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

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

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

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

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