Severe Weather in the Central Plains; Fire Concerns in the Southern High Plains and Southwest; Late-Season Mountain Snow

Severe storms, including large hail, wind, and perhaps a couple of tornadoes, are possible in the central Plains. Dry, windy conditions and lightning from dry thunderstorms may produce hazardous fire conditions in the Southwest and southern High Plains. Late-season snow is expected in the Northwest and the Great Basin. Heat is spreading across the eastern U.S.. Read More >

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Aviation Forecast Discussion

.AVIATION... 06Z TAFs: A few lingering showers will continue into the overnight hours with a scattered to broken mid level deck of clouds. Much of the region across extreme eastern Washington into the Idaho Panhandle is starting out with dew point depressions within 5 degrees. Breaks in mid level clouds will bring the potential for the surface to radiate and fog to form, especially in the valleys of northeast Washington into the northern Idaho Panhandle. Patchy fog is expected in or within the vicinity of Colville (K63S) to Sandpoint (KSZT), Deer Park (KDEW) and Spokane (KGEG/KSFF) to Coeur d'Alene (KCOE) late tonight through early Sunday morning. A low stratus deck is also expected to form between 10-12Z around KPUW/KLWS to KCOE/KSZT by 10-12Z tonight. Expect IFR to MVFR conditions into the morning hours for these airports. Diurnally forced showers with isolated thunderstorms are expected for Sunday afternoon. FORECAST CONFIDENCE AND/OR ALTERNATE SCENARIOS: There is a 60-80 percent chance for MVFR ceilings and a 20-40 percent chance for IFR conditions to develop late tonight into Sunday morning for KPUW/KCOE. For KGEG/KSFF chances are about half those values (30-40 percent chance MVFR, 10-20 percent chance IFR) for late tonight into Sunday morning. The probability for thunderstorms at any one TAF site is too low (less than 20% chance) to mention in the TAF at this time. /SVH ----------------------- 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 170542 RRA
KGEG 170539Z 1706/1806 17006KT P6SM SCT040 BKN070
     FM171200 VRB04KT P6SM MIFG FEW015 SCT180
     FM171400 02006KT P6SM FEW020 SCT180
     FM171900 26009KT P6SM SCT050 BKN090
     FM180400 20006KT P6SM SCT100

Latest Area Terminal Aerodrome Forecasts (TAFs)

FTUS44 KSFF 170542
KSFF 170539Z 1706/1806 VRB03KT P6SM FEW050 SCT080 BKN180
     FM171100 00000KT 6SM BCFG FEW005 SCT080 BKN180
     FM171400 VRB02KT P6SM FEW020 SCT180
     FM172000 VRB05KT P6SM SCT050 BKN090
     FM180300 04003KT P6SM SCT110

FTUS46 KOTX 170539
TAFCOE
TAF
KCOE 170539Z 1706/1806 16005KT P6SM FEW050 BKN080
     FM171100 16004KT P6SM VCFG SCT018 BKN026
     FM171630 VRB05KT P6SM SCT040
     FM171800 34006KT P6SM BKN045
     FM172200 26006KT P6SM BKN050
      PROB30 1722/1802 -SHRA
     FM180200 09005KT P6SM SCT060 BKN100
      PROB30 1802/1804 -SHRA BKN060=

FTUS54 KPUW 170542
KPUW 170539Z 1706/1806 VRB03KT P6SM SCT040
     FM171100 27004KT P6SM BKN020
     FM171800 30007KT P6SM BKN050
     FM180200 VRB04KT P6SM SCT100

FTUS46 KOTX 170550 CCA
TAFLWS
TAF COR
KLWS 170550Z 1706/1806 20008KT P6SM SCT080
     FM170700 14005KT P6SM SCT080
     FM171400 28003KT P6SM BKN025
     FM171700 31010KT P6SM SCT060
     FM180300 14005KT P6SM SCT070=

FTUS80 KMWH 170545 CCA
KMWH 170543Z 1706/1806 VRB05KT P6SM VCSH BKN090
     FM170800 33005KT P6SM SCT090
     FM171500 35010KT P6SM SCT090
     FM172200 32007KT P6SM FEW090

FTUS80 KEAT 170551 CCA
KEAT 170549Z 1706/1806 30013G19KT P6SM FEW100 SCT200
     FM170800 30012KT P6SM FEW100 SCT200
     FM171900 28007KT P6SM FEW090
     FM180200 31013KT P6SM SKC

FTUS80 KSEA 170521 RRX
KSEA 170520Z 1706/1812 15006KT P6SM FEW015 FEW035 BKN120
     FM171300 17003KT P6SM BKN030
     FM171800 30005KT P6SM BKN035
     FM172100 33007KT P6SM SCT250
     FM180000 30006KT P6SM SCT250

FTUS44 KBOI 170536
KBOI 170533Z 1706/1806 31010KT P6SM BKN100
     FM171500 31016G26KT P6SM SCT070 BKN100
     FM171900 33026G36KT P6SM VCSH BKN070 PROB30 1719/1724
      VRB25G35KT -SHRA BKN060
     FM180300 33019G28KT P6SM SKC

FTUS80 KPDT 170524 RRE
KPDT 170522Z 1706/1806 26010G15KT P6SM FEW040 BKN060 BKN100
     FM171000 26009KT P6SM BKN050 BKN100
     FM172000 32011KT P6SM BKN150

FTUS80 KALW 170524
KALW 170522Z 1706/1806 19011KT P6SM BKN050 BKN100
     FM171600 VRB05KT P6SM BKN040 BKN080

FTUS80 KPSC 170524 RRE
KPSC 170522Z 1706/1806 26009KT P6SM BKN050 BKN100

FTUS80 KYKM 170524 RRG
KYKM 170522Z 1706/1806 32010KT P6SM SCT060 BKN100

FTUS80 KDLS 170536 CCA
KDLS 170533Z 1706/1806 28015G22KT P6SM BKN050 BKN100
     FM170900 30009KT P6SM FEW100
     FM171800 31015G18KT P6SM SCT150
     FM180200 31011KT P6SM SKC

FTUS46 KPDT 170522
TAFBDN
TAF
KBDN 170522Z 1706/1806 31010G15KT P6SM SCT030 BKN050 BKN100
      PROB30 1706/1708 6SM -SHRA BKN035 OVC050
     FM170800 32007KT P6SM SCT030 BKN050
     FM171800 34015G21KT P6SM SCT250
     FM180300 35010KT P6SM SCT250=

FTUS80 KMSO 170524 RRE
KMSO 170523Z 1706/1806 33006KT P6SM VCSH BKN050
     FM171000 VRB04KT 6SM -RA BR OVC015
     FM171600 34008KT P6SM VCSH BKN050
     FM172000 35010G20KT P6SM BKN050
     FM180200 35006KT P6SM BKN100

FTUS54 KBTM 170524
KBTM 170523Z 1706/1806 32011KT 5SM -RASN BR BKN035
     FM170800 00000KT 5SM -SN BR BKN035
     FM171200 34005KT P6SM OVC020
     FM171800 33008G20KT P6SM -SHRASN BKN030
     FM180300 35008KT P6SM SCT100 AMD NOT SKED

FTUS80 KSMN 170524 RRF
KSMN 170523Z 1706/1806 02010KT P6SM OVC100
     FM171700 35010G22KT P6SM FEW045 PROB30 1721/1724 4SM -SHRA BR
      OVC030

FTUS80 KGPI 170524 RRC
KGPI 170523Z 1706/1806 VRB03KT P6SM VCSH SCT017 BKN035
     FM170800 VRB03KT P6SM -RA OVC025 PROB30 1709/1712 4SM -RASN
      BR
      OVC010
     FM171400 03010KT P6SM VCSH BKN050
     FM172000 02008G16KT P6SM BKN070
     FM180300 03006KT P6SM BKN100

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	0555Z	39	36	87				calm			10			CLR
KSFF	0555Z	39	37	93				calm			10			FEW080
KCOE	0556Z	41	36	82		37	170	6			10			FEW110
KPUW	0555Z	36	34	93				calm			10			BKN080
KLWS	0556Z	43	40	89			80	3			10			CLR
KMWH	0552Z	50	35	57		45	290	12			10		T	CLR
KEAT	0555Z	50	30	46		44	280	16			10			FEW090 BKN110
--WA--	Time	T	Td	RH	HI	WC	Dir	Wind	G	PK	Vis	Wx	Pcp	Clouds
KS52	0555Z	42	30	63			260	3			10			SCT085 SCT110
KOMK	0553Z	46	37	71		42	VRB	7			10		T	SCT080
KS10
KEPH	0553Z	52	33	49			310	9			10		T	BKN060 OVC080
K63S	0555Z	37	37	100		33	30	5			10			BKN085 OVC110
KDEW	0553Z	35	35	100				calm			5	BR		BKN080
KSKA	0455Z	39	37	92		33	200	8			10			CLR
--ID--	Time	T	Td	RH	HI	WC	Dir	Wind	G	PK	Vis	Wx	Pcp	Clouds
K65S	0555Z	41	36	81		37	200	6			10			SCT055 SCT075 SCT085
KSZT	0555Z	41	36	81			250	3			10			BKN023
KMLP	0558Z	27	25	92			VRB	3			2 1/2	BR		OVC002
-PDT TAFs-	Time	T	Td	RH	HI	WC	Dir	Wind	G	PK	Vis	Wx	Pcp	Clouds
KPDT	0553Z	45	35	68		38	250	15		31	10			SCT070
KALW	0553Z	46	37	71		40	180	15			10			FEW070 SCT090
KPSC	0553Z	50	36	59		47	220	7			10			CLR
KYKM	0553Z	49	32	52		44	320	12			10			SCT110
KDLS	0553Z	49	36	61		45	300	9			10			FEW120
KRDM	0556Z	41	31	67		33	280	14			10			FEW041 OVC060
KBDN	0555Z	41	30	66		34	310	12	18		10			BKN031 OVC040
-MSO TAFs-	Time	T	Td	RH	HI	WC	Dir	Wind	G	PK	Vis	Wx	Pcp	Clouds
KMSO	0555Z	41	27	57		35	270	9			10			OVC070
KBTM	0555Z	34	27	75				calm			10			OVC110
KSMN	0556Z	37	31	79		33	230	5			10			BKN060 BKN080
KGPI	0555Z	36	34	93				calm			10			OVC043
KHRF	0555Z	39	28	65		33	170	8			10			OVC060
-Misc-	Time	T	Td	RH	HI	WC	Dir	Wind	G	PK	Vis	Wx	Pcp	Clouds
KSEA	0553Z	46	42	86		41	130	10			10			BKN038 BKN060
KSMP	0556Z	31	31	100		26	VRB	5			1/4	FZFG		VV002
KELN	0553Z	42	32	68		34	320	18	26	35	10			CLR
K1YT	0455Z	49	31	50		44	10	12			10			OVC180
KRLD	0555Z	52	34	51			230	5			10			CLR
KGIC	0555Z	36	36	100				calm			10		0.01	BKN007 OVC015
KHRI	0553Z	48	36	63		42	240	17	28	36	10			BKN100
KP69	0552Z	42	41	96				calm					0.07

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