Dangerous Cold Persists through Monday; Wintry Weather from the Northern Plains to the Great Lakes

Bitter cold temperatures and dangerous wind chills will persist from Florida to the Northeast through the day. Daily record low temperatures are forecast across the Southeast and Florida, with some all-time February low temperature records possible across Florida. An Alberta clipper will spread wintry precipitation across the Northern Plains today and into the upper Great Lakes into tonight. Read More >

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Aviation Forecast Discussion

.AVIATION... 18Z TAFS: Weak system increasing mid level clouds and bringing light rain to the region. Warmer temperatures are improving the fog and stratus over the EAT. MVFR condtions are expected by early afternoon. VFR condtions expected for the GEG/SFF/COE/PUW/LWS/MWH. Models do have a low probability of MVFR ceilings through late morning. Ceilings and visibility are expected to degrade again overnight into Tuesday morning. The boundary layer is expected to remain saturated and cooler temps are leading to another round of IFR vis/cig for EAT. IFR cig is expected for GEG/SFF/COE/MWH. FORECAST CONFIDENCE AND/OR ALTERNATE SCENARIOS: Low confidence for IFR cigs for terminals for the rest of Monday. Moderate confidence for IFR condtions for Tuesday morning. ----------------------- 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 021733
KGEG 021730Z 0218/0318 VRB03KT P6SM FEW020 FEW050 BKN160 PROB30
      0218/0220 -RA OVC029
     FM022000 VRB04KT 6SM BR BKN008 PROB30 0220/0224 6SM -RA
      OVC018
     FM030300 19005KT P6SM OVC015
     FM031300 05004KT 6SM BR OVC007
     FM031600 04004KT 6SM BR OVC003

Latest Area Terminal Aerodrome Forecasts (TAFs)

FTUS44 KSFF 021733
KSFF 021730Z 0218/0318 04003KT P6SM SCT016
     FM021900 VRB03KT P6SM OVC035 PROB30 0221/0224 6SM -RA OVC020
     FM030700 VRB03KT 6SM BR SCT005 OVC009
     FM031000 VRB03KT 4SM BR SCT002 OVC005

FTUS46 KOTX 021730
TAFCOE
TAF
KCOE 021730Z 0218/0318 17004KT P6SM OVC019
      PROB30 0221/0303 6SM -RA OVC018
     FM030300 VRB04KT 4SM BR OVC009
     FM031000 07003KT 4SM BR OVC010
     FM031400 04004KT P6SM OVC007=

FTUS54 KPUW 021733
KPUW 021730Z 0218/0318 09008KT P6SM FEW035
     FM022200 12008KT 6SM BR SCT015 BKN100 PROB30 0222/0304 -RA
      BKN015
     FM030400 11004KT P6SM OVC050
     FM031400 10006KT P6SM OVC025

FTUS46 KOTX 021730
TAFLWS
TAF
KLWS 021730Z 0218/0318 09003KT P6SM SKC
     FM022200 VRB03KT P6SM BKN070 OVC120
      PROB30 0223/0302 -RA BKN040
     FM030200 14004KT P6SM BKN040 OVC070=

FTUS44 KMWH 021733
KMWH 021730Z 0218/0318 01005KT P6SM SKC
     FM021900 VRB03KT P6SM SCT003 BKN040 OVC070 PROB30 0219/0222
      -RA BKN020
     FM031100 02005KT 6SM BR OVC015
     FM031300 05004KT 6SM BR OVC007
     FM031600 04004KT 6SM BR OVC003

FTUS80 KEAT 021809 AAA
KEAT 021807Z 0218/0318 00000KT 3SM -RA BR FEW003 BKN026 OVC070
     FM022300 VRB03KT P6SM SCT016 BKN030 OVC050
     FM030200 VRB03KT P6SM BKN015
     FM031200 VRB03KT 1/2SM FG OVC003
     FM031500 29002KT 1/4SM FG OVC007

FTUS80 KSEA 021821 AAA
KSEA 021820Z 0218/0324 12007KT P6SM -RA BKN035 OVC050
     FM022100 18009G18KT 6SM BR VCSH SCT008 OVC015
     FM030100 20008KT 6SM BR OVC011
     FM030700 18004KT P6SM OVC020
     FM031100 08004KT 5SM BR OVC009
     FM031700 04006KT P6SM BKN035

FTUS80 KBOI 021730
KBOI 021729Z 0218/0318 VRB03KT P6SM SCT150
     FM030200 VRB03KT P6SM SCT050

FTUS54 KPDT 021736
KPDT 021735Z 0218/0318 17005KT P6SM FEW050 SCT150 SCT250
     FM021900 VRB05KT P6SM BKN060 BKN100 BKN250
     FM030200 14005KT P6SM BKN040 BKN080 BKN250
     FM031500 VRB05KT P6SM VCFG SCT009 BKN050

FTUS80 KALW 021736
KALW 021735Z 0218/0318 16006KT P6SM FEW060 SCT150 SCT250
     FM021900 VRB05KT P6SM BKN060 BKN100 BKN250 PROB30 0219/0301
      -RA
     FM030200 15005KT P6SM BKN040 BKN080 BKN250
     FM031500 20004KT 1SM BR OVC009

FTUS80 KPSC 021736 RRB
KPSC 021735Z 0218/0318 VRB04KT P6SM BKN060 BKN100 BKN250 PROB30
      0218/0224 -RA
     FM030700 VRB03KT P6SM SCT050 SCT250
     FM031500 VRB04KT 4SM BR BKN009

FTUS54 KYKM 021736
KYKM 021735Z 0218/0318 VRB03KT P6SM BKN040 OVC070
      TEMPO 0218/0222 -RA
     FM030500 28003KT P6SM FEW015 FEW250
     FM031400 30003KT 1SM BR OVC008

FTUS54 KDLS 021903 AAA
KDLS 021901Z 0219/0318 30005KT P6SM SCT009 BKN050
      TEMPO 0219/0221 BKN005
     FM030600 10003KT P6SM SCT015 SCT250
     FM031100 10004KT 1SM BR OVC004

FTUS46 KPDT 021735
TAFBDN
TAF
KBDN 021735Z 0218/0318 21008KT P6SM FEW150 FEW250
     FM030300 17004KT P6SM FEW250=

FTUS80 KMSO 021721 RRR
KMSO 021720Z 0218/0318 VRB03KT P6SM BKN050
     FM022200 VRB05KT P6SM VCSH BKN060
     FM030400 VRB03KT P6SM BKN100

FTUS43 KBTM 021721
KBTM 021720Z 0218/0318 VRB04KT P6SM FEW060 SCT120

FTUS80 KSMN 021721 RRX
KSMN 021720Z 0218/0318 13005KT P6SM FEW070 SCT120

FTUS44 KGPI 021721 RRA
KGPI 021720Z 0218/0318 21004KT P6SM SCT070 BKN120
     FM022100 VRB05KT P6SM VCSH BKN080
     FM031000 00000KT 4SM BR VCFG SCT005 BKN200

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	1900Z	37	36	93		32	150	6			10	VCFG		FEW020 FEW080 OVC120
KSFF	1900Z	37	36	93				calm			10			OVC110
KCOE	1900Z	43	37	81				calm			10			OVC034
KPUW	1900Z	43	36	76		40	130	5			10			SCT110
KLWS	1900Z	39	36	87				calm			10			FEW070
KMWH	1900Z	36	34	93		32	340	5			8			OVC055
KEAT	1904Z	37	37	100				calm			10	-RA	T	FEW009 BKN024 OVC055
--WA--	Time	T	Td	RH	HI	WC	Dir	Wind	G	PK	Vis	Wx	Pcp	Clouds
KS52	1855Z	34						calm			10	RA	0.03	OVC009
KOMK	1900Z	39	37	93		35	150	6			6	-RA BR		SCT006 BKN014 OVC025
KS10
KEPH	1900Z	36	36	100		30	20	8			9	-RA		FEW043 OVC055
K63S	1855Z	39	37	93			140	3			10			OVC013
KDEW	1907Z	39	37	93				calm			10			FEW005 BKN018 OVC100
KSKA	1855Z	38	37	94			110	3			10			SCT110
--ID--	Time	T	Td	RH	HI	WC	Dir	Wind	G	PK	Vis	Wx	Pcp	Clouds
K65S	1855Z	41	36	81				calm			10			OVC040
KSZT	1850Z	41	36	81		36	180	7			10			OVC034
KMLP	1900Z	30	28	93							10			BKN008 OVC015
-PDT TAFs-	Time	T	Td	RH	HI	WC	Dir	Wind	G	PK	Vis	Wx	Pcp	Clouds
KPDT	1900Z	46	36	66				calm			10			OVC100
KALW	1900Z	50	39	67				calm			10			OVC100
KPSC	1900Z	45	39	81		42	150	5			10			BKN070 OVC085
KYKM	1900Z	36	34	93				calm			10			FEW040 BKN100
KDLS	1900Z	43	43	100				calm			7			OVC003
KRDM	1900Z	48	30	50		46	80	5			10			CLR
KBDN	1855Z	48	30	50				calm			10			CLR
-MSO TAFs-	Time	T	Td	RH	HI	WC	Dir	Wind	G	PK	Vis	Wx	Pcp	Clouds
KMSO	1905Z	43	34	71		40	180	5			10			CLR
KBTM	1905Z	39	18	42		33	340	8			10			CLR
KSMN	1905Z	39	25	56			20	3			10			CLR
KGPI	1905Z	43	34	71		39	190	7			10			SCT047 BKN055
KHRF	1855Z	46	25	43		41	190	10			10			CLR
-Misc-	Time	T	Td	RH	HI	WC	Dir	Wind	G	PK	Vis	Wx	Pcp	Clouds
KSEA	1900Z	48	43	82		44	140	8			10			OVC024
KSMP	1910Z	32	32	100				calm			1/2	UP FG		VV005
KELN	1900Z	36	34	93				calm			8			BKN001 OVC070
K1YT	1855Z	35	34	94				calm			10		T	FEW055 FEW065 SCT090 BKN110 BKN160
KRLD	1855Z	44	41	88				calm			10			SCT065 OVC075
KGIC	1855Z	37	32	81			80	3			10			SCT120
K1S5	1915Z	39	37	93				calm			10	-DZ		BKN065 OVC090
KHRI	1900Z	45	39	81			120	3			10			BKN085
KP69	1852Z	38	35	89			30	3

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