Above Average Temperatures for Most Today; Winter Weather Returns to the Upper Midwest and Great Lakes

Well above average temperatures are forecast today into Wednesday over most of the lower 48 states away from the Gulf Coast. A storm system passing across southern Canada will bring a wintry mix to the upper Great Lakes today. A trailing cold front will then bring the wintry mix from the central Appalachians through the Northeast U.S. Wednesday and Thursday. Read More >

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Aviation Forecast Discussion

.AVIATION... 12Z TAFs: Other than passing high clouds, the main concern will be areas of stratus and patchy fog. The high clouds continue to make it difficult to see precise coverage of fog/stratus. But for most airports VFR conditions are expected today with fog limited to mainly the Cascade valleys, including KEAT, with an MVFR cloud deck also reported at KCOE. The boundary layer remains drier around the Spokane area down through the Palouse where there is higher confidence of VFR conditions persisting through the day. For Tuesday Night the high clouds thin, and boundary layer winds shift from being out of the west and south to out of the northeast. This will favor an increase in fog across the northern valleys down into the Spokane/Coeur d'Alene area, Cascade valleys, and possibly the Moses Lake area. FORECAST CONFIDENCE AND/OR ALTERNATE SCENARIOS: High confidence that fog and stratus today will be patchy and limited to mainly the Cascade valleys with some marginal MVFR conditions in the northern valleys and ID Panhandle. There is also high confidence that Tuesday Night the thinning of high clouds, light winds, and strengthening inversions will allow for an increase in IFR/LIFR fog and stratus. But confidence is only low to moderate on timing of when conditions deteoriate at KGEG/KSFF/KCOE/KEAT/KMWH. JW ----------------------- 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)

FTUS44 KGEG 131127
KGEG 131124Z 1312/1412 15006KT P6SM FEW080 BKN200
     FM140200 06005KT P6SM BKN250
     FM141000 05005KT 1SM BR BKN002

Latest Area Terminal Aerodrome Forecasts (TAFs)

FTUS44 KSFF 131127
KSFF 131124Z 1312/1412 VRB02KT P6SM BKN200
     FM140900 00000KT 1SM BR BKN002

FTUS46 KOTX 131124
TAFCOE
TAF
KCOE 131124Z 1312/1412 15006KT P6SM SCT029 BKN100
      TEMPO 1312/1314 OVC029
     FM131800 12005KT P6SM FEW100 BKN200
     FM132300 06005KT P6SM BKN250
     FM140900 05005KT 1SM BR BKN002=

FTUS54 KPUW 131127
KPUW 131124Z 1312/1412 10008KT P6SM BKN200

FTUS46 KOTX 131124
TAFLWS
TAF
KLWS 131124Z 1312/1412 15005KT P6SM BKN250=

FTUS44 KMWH 131127
KMWH 131124Z 1312/1412 35005KT P6SM BKN250
     FM140600 35005KT P6SM FEW250
     FM141000 35005KT 3SM BR SCT001 BKN004

FTUS80 KEAT 131127 RRA
KEAT 131124Z 1312/1412 29005KT 5SM BR FEW001 BKN200
      TEMPO 1312/1316 1SM BR BKN001
     FM131800 VRB03KT P6SM FEW005 SCT200
     FM140500 30003KT 3SM BR BKN005
     FM140900 30003KT 2SM BR OVC003

FTUS80 KSEA 131409 AAA
KSEA 131408Z 1314/1418 17005KT P6SM SCT017 OVC035
      TEMPO 1314/1317 BKN017
     FM132000 34005KT P6SM SCT020 BKN250
     FM140200 02005KT 2SM BCFG SCT002
     FM140500 35003KT 1/4SM FG OVC002

FTUS44 KBOI 131121
KBOI 131120Z 1312/1412 VRB03KT 6SM BR VCFG SCT002
     FM131600 30005KT P6SM BKN200
     FM140500 VRB03KT 6SM BR FEW003 BKN200

FTUS54 KPDT 131121 RRA
KPDT 131120Z 1312/1412 15005KT P6SM SCT250
     FM131900 31005KT P6SM SCT180 BKN250
     FM140100 VRB05KT P6SM SKC

FTUS80 KALW 131121 RRA
KALW 131120Z 1312/1412 15005KT P6SM BKN250
     FM131800 22005KT P6SM BKN250
     FM132300 12005KT P6SM SCT250

FTUS80 KPSC 131121 RRW
KPSC 131120Z 1312/1412 VRB03KT P6SM BKN250
     FM140200 35003KT P6SM FEW250

FTUS54 KYKM 131121 RRB
KYKM 131120Z 1312/1412 28003KT P6SM BKN250
     FM131600 00000KT P6SM SCT150 BKN250
     FM140400 28003KT P6SM SCT250
     FM140900 28003KT 1/2SM FG SCT010 BKN035

FTUS80 KDLS 131121 RRI
KDLS 131120Z 1312/1412 VRB03KT P6SM SCT250
     FM132100 VRB03KT P6SM SKC
     FM140200 12003KT P6SM SCT250

FTUS46 KPDT 131120
TAFBDN
TAF
KBDN 131120Z 1312/1412 12006KT P6SM SCT200
     FM140000 14003KT P6SM BKN250=

FTUS44 KMSO 131121 RRA
KMSO 131120Z 1312/1412 VRB03KT P6SM SCT070 OVC100
     FM131800 30004KT P6SM FEW100 BKN250

FTUS43 KBTM 131121
KBTM 131120Z 1312/1412 28005KT P6SM BKN100 WS020/27040KT
     FM131800 31010G20KT P6SM FEW100 SCT250
     FM140000 01005KT P6SM SCT250

FTUS80 KSMN 131121 RRX
KSMN 131120Z 1312/1412 VRB03KT P6SM SCT250

FTUS44 KGPI 131121
KGPI 131120Z 1312/1412 VRB03KT P6SM SCT060 OVC080

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	1440Z	45	30	57		40	170	10			10			CLR
KSFF	1440Z	46	30	53				calm			10			CLR
KCOE	1440Z	43	32	66			140	3			10			CLR
KPUW	1440Z	39	30	70		33	70	9			10			CLR
KLWS	1440Z	41	32	70				calm			10			CLR
KMWH	1440Z	36	34	93		31	340	6			10			CLR
KEAT	1440Z	37	36	93				calm			10			CLR
--WA--	Time	T	Td	RH	HI	WC	Dir	Wind	G	PK	Vis	Wx	Pcp	Clouds
KS52	1435Z	27	27	99		21	20	5			1 1/4	BR		BKN002 OVC006
KOMK	1440Z	34	30	87			110	3			10			CLR
KS10
KEPH	1440Z	39	36	87		33	10	8			10			CLR
K63S	1435Z	32	32	100				calm			10			FEW030 SCT090 BKN120
KDEW	1440Z	34	32	93				calm			10			CLR
KSKA	1355Z	43	31	62		37	210	10			10			CLR
--ID--	Time	T	Td	RH	HI	WC	Dir	Wind	G	PK	Vis	Wx	Pcp	Clouds
K65S	1435Z	36	34	93				calm			10			OVC055
KSZT	1430Z	39	32	75		34	190	7			10			OVC033
KMLP	1440Z	34	30	87		29	200	5			10			OVC014
-PDT TAFs-	Time	T	Td	RH	HI	WC	Dir	Wind	G	PK	Vis	Wx	Pcp	Clouds
KPDT	1440Z	46	27	46		42	170	7			10			CLR
KALW	1440Z	48	34	58		44	80	9			10			CLR
KPSC	1440Z	39	36	87				calm			10			CLR
KYKM	1440Z	32	30	93		26	240	6			10			CLR
KDLS	1440Z	30	30	100				calm			10			CLR
KRDM	1440Z	25	21	86			110	3			10			CLR
KBDN	1435Z	32	25	75		25	140	8			10			CLR
-MSO TAFs-	Time	T	Td	RH	HI	WC	Dir	Wind	G	PK	Vis	Wx	Pcp	Clouds
KMSO	1440Z	36	30	81				calm			10			BKN100 BKN120
KBTM	1440Z	43	27	53				calm			10			OVC090
KSMN	1440Z	18	16	93				calm			8			CLR
KGPI	1440Z	36	32	87			10	3			10			BKN048 BKN060 OVC090
KHRF	1435Z	48	28	46		44	170	9			10			SCT110
-Misc-	Time	T	Td	RH	HI	WC	Dir	Wind	G	PK	Vis	Wx	Pcp	Clouds
KSEA	1440Z	54	52	94				calm			10			BKN015 OVC030
KSMP	1356Z	44	44	100				calm			7	RA		SCT001 SCT007
KELN	1440Z	34	34	100				calm			M1/4	FG		VV001
K1YT	1355Z	36	33	91			20	3			10			OVC220
KRLD	1435Z	49	36	61		46	210	6			10			CLR
KGIC	1435Z	32	32	100				calm			10			CLR
K1S5	1435Z	35	34	95				calm			10			CLR
KHRI	1440Z	34	30	87		27	160	8			10			CLR
KP69	1352Z	35	34	96				calm

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