Alert archive / Idaho / Winter Storm Warnings in 2021

Winter Storm Warning 16, NWS Spokane, WA

December 29, 20214 counties in Washington; 6 counties in Idaho

NWS Spokane, WA issued this winter storm warning at Dec 29, 2021, 1:43 PM PST for 4 counties in Washington; 6 counties in Idaho. It took effect at Dec 30, 2021, 2:36 AM PST. It was in force for 25 hr. 48 reports came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
Dec 29, 2021, 1:43 PM PST (21:43 UTC)
In effect from
Dec 30, 2021, 2:36 AM PST
Expired
Dec 31, 2021, 4:00 AM PST
In force
25 hr
Issued by
NWS Spokane, WA

Counties Benewah County, ID, Kootenai County, ID, Latah County, ID, Lewis County, ID, Nez Perce County, ID, Shoshone County, ID, Asotin County, WA, Garfield County, WA, Spokane County, WA, Whitman County, WA

The radar

The Spokane radar (KOTX), 106 km from the middle of the area, began a volume at 21:47 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

What was reported inside it

TimeReportWhereRemark
Dec 30, 6:00 AM PSTSNOW 2.32 S 5 Mile, WACOCORAHS STATION WA-SP-34 SPOKANE 3.5 NNW.
Dec 30, 6:00 AM PSTSNOW 3.3Rose Lake, IDCOCORAHS STATION ID-KT-30 CATALDO 6.7 W.
Dec 30, 6:30 AM PSTSNOW 2.43 N Spokane, WACOCORAHS STATION WA-SP-78 SPOKANE 1.4 N.
Dec 30, 7:00 AM PSTSNOW 2Chattaroy, WACOCORAHS STATION WA-SP-63 CHATTAROY 0.2 ESE.
Dec 30, 7:00 AM PSTSNOW 2.21 Wsw Colbert, WACOCORAHS STATION WA-SP-77 COLBERT 0.8 SW.
Dec 30, 7:00 AM PSTSNOW 2.41 Se Eagle Ridge, WACOCORAHS STATION WA-SP-4 5.5 S SPOKANE.
Dec 30, 7:00 AM PSTSNOW 2.53 S 5 Mile, WACOCORAHS STATION WA-SP-60 SPOKANE 2.4 NW.
Dec 30, 7:00 AM PSTSNOW 32 Ne 5 Mile, WACOCORAHS STATION WA-SP-57 SPOKANE 6.1 N.
Dec 30, 7:00 AM PSTSNOW 36 S Huetter, IDCOCORAHS STATION ID-KT-12 6.6 SSW COEUR D'ALENE.
Dec 30, 7:00 AM PSTSNOW 43 Nw Otis Orchards, WACOCORAHS STATION WA-SP-73 OTIS ORCHARDS-EAST FARMS 2.9 NW.
Dec 30, 7:00 AM PSTSNOW 4Pomeroy, WASNOW FELL BETWEEN 9 PM LAST NIGHT AND 7AM THIS MORNING.
Dec 30, 7:00 AM PSTHEAVY SNOW 4.63 Ssw Palouse, WACOCORAHS STATION WA-WM-5 PALOUSE 3.2 SSW.
Dec 30, 7:00 AM PSTHEAVY SNOW 5.12 N Moscow, IDCOCORAHS STATION ID-LT-1 1.7 N MOSCOW.
Dec 30, 7:00 AM PSTHEAVY SNOW 6.53 Ne Onaway, IDCO-OP OBSERVER STATION PTLI1 2.7 NE ONAWAY.
Dec 30, 7:10 AM PSTSNOW 2.86 Sse Cheney, WAMESONET STATION TRNW1 TURNBULL NWR SPOKANE 17 SSW WA US.
Dec 30, 7:15 AM PSTSNOW 3.24 Sse Juliaetta, IDCOCORAHS STATION ID-NP-1 JULIAETTA 4.1 SSE.
Dec 30, 7:30 AM PSTSNOW 3.3Rosalia, WACO-OP OBSERVER STATION RSLW1 ROSALIA.
Dec 30, 7:35 AM PSTSNOW 3.12 Ne Hayden Lake, IDCOCORAHS STATION ID-KT-31 HAYDEN LAKE 1.6 NE.
Dec 30, 7:45 AM PSTSNOW 21 Ene Athol, IDCOCORAHS STATION ID-KT-3 1.5 ENE ATHOL.
Dec 30, 7:46 AM PSTSNOW 2.43 Nnw Spokane, WA
Dec 30, 8:00 AM PSTSNOW 22 Ssw 5 Mile, WACOCORAHS STATION WA-SP-64 SPOKANE 3.7 NW.
Dec 30, 8:00 AM PSTSNOW 2.53 S 5 Mile, WANEW SNOW OVERNIGHT.
Dec 30, 8:00 AM PSTSNOW 3Pinehurst, IDCOCORAHS STATION ID-SH-3 PINEHURST 0.4 WSW.
Dec 30, 8:00 AM PSTSNOW 4.12 Ene Chatcolet, IDCOCORAHS STATION ID-BW-2 7.4 WSW ST. MARIES.
Dec 30, 8:00 AM PSTHEAVY SNOW 51 Sw Pullman, WACOCORAHS STATION WA-WM-15 PULLMAN 0.4 SE.
Dec 30, 8:15 AM PSTHEAVY SNOW 51 Wsw Pullman, WAFELL BETWEEN 9 PM LAST NIGHT AND 7AM THIS MORNING.
Dec 30, 8:30 AM PSTSNOW 3.8Pomeroy, WASNOW AMOUNT FROM FIRST ROUND OF SNOW.
Dec 30, 9:00 AM PSTSNOW 3.62 Ssw Green Acres, WACOCORAHS STATION WA-SP-79 GREENACRES 1.5 SSW.
Dec 30, 9:00 AM PSTHEAVY SNOW 52 Wsw Pullman, WASNOW TOTAL SINCE 5 PM YESTERDAY.
Dec 30, 9:20 AM PSTSNOW 2.52 Se Dishman, WA
Dec 30, 9:30 AM PSTHEAVY SNOW 52 Wsw Pullman, WA
Dec 30, 9:30 AM PSTHEAVY SNOW 5.52 Wnw Pullman, WA
Dec 30, 9:30 AM PSTHEAVY SNOW 5.53 Ese Pullman, WACOCORAHS STATION WA-WM-16 PULLMAN 3.0 ESE.
Dec 30, 9:45 AM PSTSNOW 3Saint John, WA
Dec 30, 9:56 AM PSTHEAVY SNOW 51 Nnw Moscow, ID
Dec 30, 10:00 AM PSTSNOW 31 Ssw Coeur D'Alene, IDCO-OP OBSERVER STATION COWI1 1.2 SW COEUR D'ALENE.
Dec 30, 11:00 AM PSTSNOW 4.2Albion, WA
Dec 30, 11:30 AM PSTSNOW 41 Wnw Rockford, WA4 INCHES FELL OVERNIGHT.
Dec 30, 1:00 PM PSTHEAVY SNOW 6.12 Ese Lewiston, IDSNOW ACCUMULATION SO FAR TODAY, STILL SNOWING.
Dec 30, 4:30 PM PSTHEAVY SNOW 7Pomeroy, WAUPDATED SNOW TOTAL AS OF 430PM. 3.8 INCHES THIS MORNING AFTER FIRST ROUND OF SNOW.
Dec 30, 4:50 PM PSTHEAVY SNOW 131 S Lewiston, IDSTILL SNOWING AT TIME OF MEASUREMENT.
Dec 30, 5:00 PM PSTHEAVY SNOW 7.12 Ese Lewiston, IDSTORM TOTAL SNOWFALL SO FAR. LIGHT SNOW STILL AT TIME OF REPORT.
Dec 30, 5:15 PM PSTHEAVY SNOW 9.51 N Clarkston, WASTILL SNOWING AT TIME OF MEASUREMENT.
Dec 30, 6:00 PM PSTHEAVY SNOW 5.7Oakesdale, WAFROM 9PM DEC 29 TO 6PM DEC 30TH. STILL SNOWING AS OF 6PM.
Dec 30, 6:00 PM PSTHEAVY SNOW 61 Wsw Pullman, WASTORM TOTAL SNOW. LIGHT SNOW OFF AND ON STILL AT TIME OF REPORT.
Dec 30, 6:30 PM PSTHEAVY SNOW 10Pomeroy, WACORRECTS PREVIOUS HEAVY SNOW REPORT FROM POMEROY. UPDATED SNOW TOTAL AS OF 630PM. PREVIOUS REPORTS: 3.8 INCHES AT 630AM, 7 INCHES AT 430PM.
Dec 30, 7:30 PM PSTHEAVY SNOW 91 Nnw Clarkston Heights, WA
Dec 30, 8:35 PM PSTHEAVY SNOW 6.33 Ne Colfax, WAMORNING OBSERVATION OF 5 INCHES WITH AN ADDITIONAL 1.25 INCHES AT 8:30PM.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Spokane, WA (KOTX), launched 12:00Z, 9.7 hours before the alert went out and 98 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Spokane, WA at 12:00Z on 2021-12-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Spokane, WA at 12:00Z on 2021-12-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 29 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
842 m above ground
0-6 km bulk shear
55 kt
0-1 km storm-relative helicity
29 m²/s²
0-3 km storm-relative helicity
173 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

716 
WWUS46 KOTX 292143
WSWOTX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Spokane WA
143 PM PST Wed Dec 29 2021

IDZ003-WAZ033-300745-
/O.NEW.KOTX.WS.W.0016.211230T1200Z-211231T1200Z/
Idaho Palouse-Washington Palouse-
Including the cities of Potlatch, Rosalia, Plummer, Colfax,
Tekoa, Moscow, Genesee, Uniontown, La Crosse, Pullman, and
Oakesdale
143 PM PST Wed Dec 29 2021

...WINTER STORM WARNING IN EFFECT FROM 4 AM THURSDAY TO 4 AM PST 
FRIDAY...

* WHAT...Heavy snow expected. Total snow accumulations around 4 
  inches with localized amounts up to 6 inches.

* WHERE...Potlatch, Rosalia, Plummer, Colfax, Tekoa, Moscow, 
  Genesee, Uniontown, La Crosse, Pullman, and Oakesdale.

* WHEN...From 4 AM Thursday to 4 AM PST Friday.

* IMPACTS...Plan on slippery road conditions. The hazardous 
  conditions could impact the Thursday morning and evening commutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in 
your vehicle in case of an emergency. The latest road conditions for 
the state you are calling from can be obtained by calling 5 1 1.

&&

$$

IDZ026-WAZ032-300745-
/O.NEW.KOTX.WS.W.0016.211230T1500Z-211231T1200Z/
Lewiston Area-Lower Garfield and Asotin Counties-
Including the cities of Lewiston, Clarkston, Pomeroy, Lewiston
Grade, Gifford, Lapwai, Alpowa Summit, Culdesac, and Peck
143 PM PST Wed Dec 29 2021

...WINTER STORM WARNING IN EFFECT FROM 7 AM THURSDAY TO 4 AM PST 
FRIDAY...

* WHAT...Heavy snow expected. Total snow accumulations between 2 and 
  4 inches with localized accumulations up to 6 inches.

* WHERE...Lewiston, Clarkston, Pomeroy, Lewiston Grade, Gifford, 
  Lapwai, Alpowa Summit, Culdesac, and Peck.

* WHEN...From 7 AM Thursday to 4 AM PST Friday.

* IMPACTS...Plan on slippery road conditions. The hazardous 
  conditions could impact the Thursday morning and evening commutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in 
your vehicle in case of an emergency. The latest road conditions for 
the state you are calling from can be obtained by calling 5 1 1.

&&

$$

WAZ048-300745-
/O.NEW.KOTX.WW.Y.0049.211230T0900Z-211231T0300Z/
Western Chelan County-
Including the cities of Holden Village, Stehekin, and Stevens
Pass
143 PM PST Wed Dec 29 2021

...WINTER WEATHER ADVISORY IN EFFECT FROM 1 AM TO 7 PM PST 
THURSDAY...

* WHAT...Snow expected. Total snow accumulations between 8 and 10 
  inches mainly near Stevens Pass.

* WHERE...Holden Village, Stehekin, and Stevens Pass.

* WHEN...From 1 AM to 7 PM PST Thursday.

* IMPACTS...Travel could be very difficult. The hazardous conditions 
  could impact the Thursday morning and evening commutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. The latest road 
conditions for the state you are calling from can be obtained by 
calling 5 1 1.

&&

$$

IDZ004-027-300745-
/O.NEW.KOTX.WW.Y.0049.211230T1200Z-211231T1800Z/
Central Panhandle Mountains-Lewis and Southern Nez Perce Counties-
Including the cities of Fourth Of July Pass, Craigmont,
Winchester, Wallace, Osburn, Nezperce, Dobson Pass, Soldiers
Meadow Road, Kamiah, Kellogg, St. Maries, Fernwood, Lookout Pass,
Mullan, and Pinehurst
143 PM PST Wed Dec 29 2021

...WINTER WEATHER ADVISORY IN EFFECT FROM 4 AM THURSDAY TO 10 AM PST 
FRIDAY...

* WHAT...Snow expected. Total snow accumulations between 1 and 3 
  inches with 3 to 6 inches near Lookout Pass.

* WHERE...Fourth Of July Pass, Craigmont, Winchester, Wallace, 
  Osburn, Nezperce, Dobson Pass, Soldiers Meadow Road, Kamiah, 
  Kellogg, St. Maries, Fernwood, Lookout Pass, Mullan, and Pinehurst.

* WHEN...From 4 AM Thursday to 10 AM PST Friday.

* IMPACTS...Plan on slippery road conditions. The hazardous 
  conditions could impact the Thursday morning and evening commutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. The latest road 
conditions for the state you are calling from can be obtained by 
calling 5 1 1.

&&

$$

WAZ031-300745-
/O.NEW.KOTX.WW.Y.0049.211230T1200Z-211231T1800Z/
Northeast Blue Mountains-
Including the cities of Mountain Road, Anatone, Peola, and
Cloverland Road
143 PM PST Wed Dec 29 2021

...WINTER WEATHER ADVISORY IN EFFECT FROM 4 AM THURSDAY TO 10 AM PST 
FRIDAY...

* WHAT...Snow expected. Total snow accumulations of 8 to 10 inches. 

* WHERE...Mountain Road, Anatone, Peola, and Cloverland Road.

* WHEN...From 4 AM Thursday to 10 AM PST Friday.

* IMPACTS...Plan on slippery road conditions. The hazardous 
  conditions could impact the Thursday morning and evening commutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. The latest road 
conditions for the state you are calling from can be obtained by 
calling 5 1 1.

&&

$$

RP
8 follow-up statements
312 
WWUS46 KOTX 292159
WSWOTX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Spokane WA
159 PM PST Wed Dec 29 2021

WAZ031-300800-
/O.UPG.KOTX.WW.Y.0049.211230T1200Z-211231T1800Z/
/O.EXA.KOTX.WS.W.0016.211230T1500Z-211231T1200Z/
Northeast Blue Mountains-
Including the cities of Mountain Road, Anatone, Peola, and
Cloverland Road
159 PM PST Wed Dec 29 2021

...WINTER STORM WARNING IN EFFECT FROM 7 AM THURSDAY TO 4 AM PST 
FRIDAY...

* WHAT...Snow expected. Total snow accumulations of 8 to 10 inches. 

* WHERE...Mountain Road, Anatone, Peola, and Cloverland Road.

* WHEN...From 7 AM Thursday to 4 AM PST Friday.

* IMPACTS...Plan on slippery road conditions. The hazardous 
  conditions could impact the Thursday morning and evening commutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in 
your vehicle in case of an emergency. The latest road conditions for 
the state you are calling from can be obtained by calling 5 1 1.

&&

$$

IDZ003-WAZ033-300800-
/O.CON.KOTX.WS.W.0016.211230T1200Z-211231T1200Z/
Idaho Palouse-Washington Palouse-
Including the cities of Potlatch, Rosalia, Plummer, Colfax,
Tekoa, Moscow, Genesee, Uniontown, La Crosse, Pullman, and
Oakesdale
159 PM PST Wed Dec 29 2021

...WINTER STORM WARNING REMAINS IN EFFECT FROM 4 AM THURSDAY TO 4 AM 
PST FRIDAY...

* WHAT...Heavy snow expected. Total snow accumulations around 4 
  inches with localized amounts up to 6 inches.

* WHERE...Potlatch, Rosalia, Plummer, Colfax, Tekoa, Moscow, 
  Genesee, Uniontown, La Crosse, Pullman, and Oakesdale.

* WHEN...From 4 AM Thursday to 4 AM PST Friday.

* IMPACTS...Plan on slippery road conditions. The hazardous 
  conditions could impact the Thursday morning and evening commutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in 
your vehicle in case of an emergency. The latest road conditions for 
the state you are calling from can be obtained by calling 5 1 1.

&&

$$

IDZ026-WAZ032-300800-
/O.CON.KOTX.WS.W.0016.211230T1500Z-211231T1200Z/
Lewiston Area-Lower Garfield and Asotin Counties-
Including the cities of Lewiston, Clarkston, Pomeroy, Lewiston
Grade, Gifford, Lapwai, Alpowa Summit, Culdesac, and Peck
159 PM PST Wed Dec 29 2021

...WINTER STORM WARNING REMAINS IN EFFECT FROM 7 AM THURSDAY TO 4 AM 
PST FRIDAY...

* WHAT...Heavy snow expected. Total snow accumulations between 2 and 
  4 inches with localized accumulations up to 6 inches.

* WHERE...Lewiston, Clarkston, Pomeroy, Lewiston Grade, Gifford, 
  Lapwai, Alpowa Summit, Culdesac, and Peck.

* WHEN...From 7 AM Thursday to 4 AM PST Friday.

* IMPACTS...Plan on slippery road conditions. The hazardous 
  conditions could impact the Thursday morning and evening commutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in 
your vehicle in case of an emergency. The latest road conditions for 
the state you are calling from can be obtained by calling 5 1 1.

&&

$$

WAZ048-300800-
/O.CON.KOTX.WW.Y.0049.211230T0900Z-211231T0300Z/
Western Chelan County-
Including the cities of Holden Village, Stehekin, and Stevens
Pass
159 PM PST Wed Dec 29 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 1 AM TO 7 PM PST 
THURSDAY...

* WHAT...Snow expected. Total snow accumulations between 8 and 10 
  inches mainly near Stevens Pass.

* WHERE...Holden Village, Stehekin, and Stevens Pass.

* WHEN...From 1 AM to 7 PM PST Thursday.

* IMPACTS...Travel could be very difficult. The hazardous conditions 
  could impact the Thursday morning and evening commutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. The latest road 
conditions for the state you are calling from can be obtained by 
calling 5 1 1.

&&

$$

IDZ004-027-300800-
/O.CON.KOTX.WW.Y.0049.211230T1200Z-211231T1800Z/
Central Panhandle Mountains-Lewis and Southern Nez Perce Counties-
Including the cities of Fourth Of July Pass, Craigmont,
Winchester, Wallace, Osburn, Nezperce, Dobson Pass, Soldiers
Meadow Road, Kamiah, Kellogg, St. Maries, Fernwood, Lookout Pass,
Mullan, and Pinehurst
159 PM PST Wed Dec 29 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 4 AM THURSDAY TO 
10 AM PST FRIDAY...

* WHAT...Snow expected. Total snow accumulations between 1 and 3 
  inches with 3 to 6 inches near Lookout Pass.

* WHERE...Fourth Of July Pass, Craigmont, Winchester, Wallace, 
  Osburn, Nezperce, Dobson Pass, Soldiers Meadow Road, Kamiah, 
  Kellogg, St. Maries, Fernwood, Lookout Pass, Mullan, and Pinehurst.

* WHEN...From 4 AM Thursday to 10 AM PST Friday.

* IMPACTS...Plan on slippery road conditions. The hazardous 
  conditions could impact the Thursday morning and evening commutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. The latest road 
conditions for the state you are calling from can be obtained by 
calling 5 1 1.

&&

$$

RP
145 
WWUS46 KOTX 300348
WSWOTX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Spokane WA
748 PM PST Wed Dec 29 2021

IDZ003-WAZ033-301315-
/O.CON.KOTX.WS.W.0016.211230T1200Z-211231T1200Z/
Idaho Palouse-Washington Palouse-
Including the cities of Potlatch, Rosalia, Plummer, Colfax,
Tekoa, Moscow, Genesee, Uniontown, La Crosse, Pullman, and
Oakesdale
748 PM PST Wed Dec 29 2021

...WINTER STORM WARNING REMAINS IN EFFECT FROM 4 AM THURSDAY TO 4 AM 
PST FRIDAY...

* WHAT...Heavy snow expected. Total snow accumulations between 4 and 
  6 inches.

* WHERE...Potlatch, Rosalia, Plummer, Colfax, Tekoa, Moscow, 
  Genesee, Uniontown, La Crosse, Pullman, and Oakesdale.

* WHEN...From 4 AM Thursday to 4 AM PST Friday.

* IMPACTS...Travel could be very difficult. The hazardous conditions 
  could impact the Thursday morning and evening commutes.

* ADDITIONAL DETAILS...Heaviest snow rates of up to one inch per 
  hour is expected Thursday afternoon.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in 
your vehicle in case of an emergency. The latest road conditions for 
the state you are calling from can be obtained by calling 5 1 1.

&&

$$

IDZ026-WAZ032-301315-
/O.CON.KOTX.WS.W.0016.211230T1500Z-211231T1200Z/
Lewiston Area-Lower Garfield and Asotin Counties-
Including the cities of Lewiston, Clarkston, Pomeroy, Lewiston
Grade, Gifford, Lapwai, Alpowa Summit, Culdesac, and Peck
748 PM PST Wed Dec 29 2021

...WINTER STORM WARNING REMAINS IN EFFECT FROM 7 AM THURSDAY TO 4 AM 
PST FRIDAY...

* WHAT...Heavy snow expected. Total snow accumulations between 2 and 
  4 inches with localized accumulations up to 6 inches.

* WHERE...Lewiston, Clarkston, Pomeroy, Lewiston Grade, Gifford, 
  Lapwai, Alpowa Summit, Culdesac, and Peck.

* WHEN...From 7 AM Thursday to 4 AM PST Friday.

* IMPACTS...Plan on slippery road conditions. The hazardous 
  conditions could impact the Thursday morning and evening commutes.

* ADDITIONAL DETAILS...Heaviest snow rates of between a half an inch 
  per hour to one inch per hour is expected Thursday afternoon.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in 
your vehicle in case of an emergency. The latest road conditions for 
the state you are calling from can be obtained by calling 5 1 1.

&&

$$

WAZ031-301315-
/O.CON.KOTX.WS.W.0016.211230T1500Z-211231T1200Z/
Northeast Blue Mountains-
Including the cities of Mountain Road, Anatone, Peola, and
Cloverland Road
748 PM PST Wed Dec 29 2021

...WINTER STORM WARNING REMAINS IN EFFECT FROM 7 AM THURSDAY TO 4 AM 
PST FRIDAY...

* WHAT...Snow expected. Total snow accumulations of 7 to 9 inches. 

* WHERE...Mountain Road, Anatone, Peola, and Cloverland Road.

* WHEN...From 7 AM Thursday to 4 AM PST Friday.

* IMPACTS...Travel could be very difficult.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in 
your vehicle in case of an emergency. The latest road conditions for 
the state you are calling from can be obtained by calling 5 1 1.

&&

$$

IDZ002-WAZ035-036-301315-
/O.EXB.KOTX.WW.Y.0049.211230T1000Z-211230T2300Z/
Coeur d'Alene Area-Upper Columbia Basin-Spokane Area-
Including the cities of Rockford, Spokane Valley, Downtown
Spokane, Creston, Worley, Coeur d'Alene, Cheney, Fairfield,
Hayden, Post Falls, Airway Heights, Harrington, Odessa,
Davenport, Ritzville, and Wilbur
748 PM PST Wed Dec 29 2021

...WINTER WEATHER ADVISORY IN EFFECT FROM 2 AM TO 3 PM PST 
THURSDAY...

* WHAT...Snow expected. Total snow accumulations between 2 and 4 
  inches.

* WHERE...Rockford, Spokane Valley, Downtown Spokane, Creston, 
  Worley, Coeur d'Alene, Cheney, Fairfield, Hayden, Post Falls, 
  Airway Heights, Harrington, Odessa, Davenport, Ritzville, and 
  Wilbur.

* WHEN...From 2 AM to 3 PM PST Thursday.

* IMPACTS...Plan on slippery road conditions. The hazardous 
  conditions could impact the Thursday morning commute.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. The latest road 
conditions for the state you are calling from can be obtained by 
calling 5 1 1.

&&

$$

WAZ048-301315-
/O.CON.KOTX.WW.Y.0049.211230T0900Z-211231T0300Z/
Western Chelan County-
Including the cities of Holden Village, Stehekin, and Stevens
Pass
748 PM PST Wed Dec 29 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 1 AM TO 7 PM PST 
THURSDAY...

* WHAT...Snow expected. Total snow accumulations between 8 and 10 
  inches mainly near the Cascade crest including Stevens Pass.

* WHERE...Holden Village and Stevens Pass.

* WHEN...From 1 AM to 7 PM PST Thursday.

* IMPACTS...Travel could be very difficult.

* ADDITIONAL DETAILS...Heaviest snowfall is expected Thursday 
  morning.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. The latest road 
conditions for the state you are calling from can be obtained by 
calling 5 1 1.

&&

$$

IDZ004-027-301315-
/O.CON.KOTX.WW.Y.0049.211230T1200Z-211231T1800Z/
Central Panhandle Mountains-Lewis and Southern Nez Perce Counties-
Including the cities of Fourth Of July Pass, Craigmont,
Winchester, Wallace, Osburn, Nezperce, Dobson Pass, Soldiers
Meadow Road, Kamiah, Kellogg, St. Maries, Fernwood, Lookout Pass,
Mullan, and Pinehurst
748 PM PST Wed Dec 29 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 4 AM THURSDAY TO 
10 AM PST FRIDAY...

* WHAT...Snow expected. Total snow accumulations between 2 and 5 
  inches.

* WHERE...Fourth Of July Pass, Craigmont, Winchester, Wallace, 
  Osburn, Nezperce, Dobson Pass, Soldiers Meadow Road, Kamiah, 
  Kellogg, St. Maries, Fernwood, Lookout Pass, Mullan, and Pinehurst.

* WHEN...From 4 AM Thursday to 10 AM PST Friday.

* IMPACTS...Plan on slippery road conditions.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. The latest road 
conditions for the state you are calling from can be obtained by 
calling 5 1 1.

&&

$$

SVH
771 
WWUS46 KOTX 301036
WSWOTX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Spokane WA
236 AM PST Thu Dec 30 2021

IDZ004-027-310000-
/O.UPG.KOTX.WW.Y.0049.211230T1200Z-211231T1800Z/
/O.EXB.KOTX.WS.W.0016.211230T1100Z-211231T1800Z/
Central Panhandle Mountains-Lewis and Southern Nez Perce Counties-
Including the cities of Fourth Of July Pass, Craigmont,
Winchester, Wallace, Osburn, Nezperce, Dobson Pass, Soldiers
Meadow Road, Kamiah, Kellogg, St. Maries, Fernwood, Lookout Pass,
Mullan, and Pinehurst
236 AM PST Thu Dec 30 2021

...WINTER STORM WARNING IN EFFECT UNTIL 10 AM PST FRIDAY...

* WHAT...Heavy snow expected. Total snow accumulations between 5 to 
  8 inches south of the Silver Valley and on the Camas Prairie. Snow 
  totals of 3 to 7 inches from the Silver Valley northward.

* WHERE...Fourth Of July Pass, Craigmont, Winchester, Wallace, 
  Osburn, Nezperce, Dobson Pass, Soldiers Meadow Road, Kamiah, 
  Kellogg, St. Maries, Fernwood, Lookout Pass, Mullan, and Pinehurst.

* WHEN...Until 10 AM PST Friday.

* IMPACTS...Travel could be very difficult. The hazardous conditions 
  could impact the Thursday morning and evening commutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in 
your vehicle in case of an emergency. The latest road conditions for 
the state you are calling from can be obtained by calling 5 1 1.

&&

$$

IDZ003-WAZ033-310000-
/O.EXT.KOTX.WS.W.0016.211230T1036Z-211231T1200Z/
Idaho Palouse-Washington Palouse-
Including the cities of Potlatch, Rosalia, Plummer, Colfax,
Tekoa, Moscow, Genesee, Uniontown, La Crosse, Pullman, and
Oakesdale
236 AM PST Thu Dec 30 2021

...WINTER STORM WARNING NOW IN EFFECT UNTIL 4 AM PST FRIDAY...

* WHAT...Heavy snow. Additional snow accumulations between 4 and 7 
  inches but locally heavier amounts are possible.

* WHERE...Potlatch, Rosalia, Plummer, Colfax, Tekoa, Moscow, 
  Genesee, Uniontown, La Crosse, Pullman, and Oakesdale.

* WHEN...Until 4 AM PST Friday.

* IMPACTS...Travel could be very difficult. The hazardous conditions 
  could impact the Thursday morning and evening commutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in 
your vehicle in case of an emergency. The latest road conditions for 
the state you are calling from can be obtained by calling 5 1 1.

&&

$$

IDZ026-WAZ032-310000-
/O.EXT.KOTX.WS.W.0016.211230T1036Z-211231T1200Z/
Lewiston Area-Lower Garfield and Asotin Counties-
Including the cities of Lewiston, Clarkston, Pomeroy, Lewiston
Grade, Gifford, Lapwai, Alpowa Summit, Culdesac, and Peck
236 AM PST Thu Dec 30 2021

...WINTER STORM WARNING NOW IN EFFECT UNTIL 4 AM PST FRIDAY...

* WHAT...Heavy snow expected. Total snow accumulations between 3 and 
  5 inches with localized accumulations of 6 to 8 inches possible 
  over the higher terrain east of Lewiston.

* WHERE...Lewiston, Clarkston, Pomeroy, Lewiston Grade, Gifford, 
  Lapwai, Alpowa Summit, Culdesac, and Peck.

* WHEN...Until 4 AM PST Friday.

* IMPACTS...Travel could be very difficult. The hazardous conditions 
  could impact the Thursday morning and evening commutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in 
your vehicle in case of an emergency. The latest road conditions for 
the state you are calling from can be obtained by calling 5 1 1.

&&

$$

WAZ031-310000-
/O.EXT.KOTX.WS.W.0016.211230T1100Z-211231T1200Z/
Northeast Blue Mountains-
Including the cities of Mountain Road, Anatone, Peola, and
Cloverland Road
236 AM PST Thu Dec 30 2021

...WINTER STORM WARNING NOW IN EFFECT UNTIL 4 AM PST FRIDAY...

* WHAT...Snow expected. Total snow accumulations of 6 to 10 inches. 

* WHERE...Mountain Road, Anatone, Peola, and Cloverland Road.

* WHEN...Until 4 AM PST Friday.

* IMPACTS...Travel could be very difficult. The hazardous conditions 
  could impact the Thursday morning and evening commutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in 
your vehicle in case of an emergency. The latest road conditions for 
the state you are calling from can be obtained by calling 5 1 1.

&&

$$

IDZ002-WAZ035-036-302300-
/O.CON.KOTX.WW.Y.0049.000000T0000Z-211230T2300Z/
Coeur d'Alene Area-Upper Columbia Basin-Spokane Area-
Including the cities of Rockford, Spokane Valley, Downtown
Spokane, Creston, Worley, Coeur d'Alene, Cheney, Fairfield,
Hayden, Post Falls, Airway Heights, Harrington, Odessa,
Davenport, Ritzville, and Wilbur
236 AM PST Thu Dec 30 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 3 PM PST THIS 
AFTERNOON...

* WHAT...Snow. Additional snow accumulations between 2 and 4 inches 
  but locally up to 6 inches south of Spokane and Coeur d'Alene.

* WHERE...Rockford, Spokane Valley, Downtown Spokane, Creston, 
  Worley, Coeur d'Alene, Cheney, Fairfield, Hayden, Post Falls, 
  Airway Heights, Harrington, Odessa, Davenport, Ritzville, and 
  Wilbur.

* WHEN...Until 3 PM PST this afternoon.

* IMPACTS...Plan on slippery road conditions. The hazardous 
  conditions could impact the Thursday morning commute.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. The latest road 
conditions for the state you are calling from can be obtained by 
calling 5 1 1.

&&

$$

WAZ048-310000-
/O.CON.KOTX.WW.Y.0049.000000T0000Z-211231T0300Z/
Western Chelan County-
Including the cities of Holden Village, Stehekin, and Stevens
Pass
236 AM PST Thu Dec 30 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 7 PM PST THIS 
EVENING...

* WHAT...Snow expected. Total snow accumulations between 8 and 12 
  inches mainly near the Cascade crest including Stevens Pass.

* WHERE...Holden Village, Stehekin, and Stevens Pass.

* WHEN...Until 7 PM PST this evening.

* IMPACTS...Travel could be very difficult. The hazardous conditions 
  could impact the Thursday morning and evening commutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. The latest road 
conditions for the state you are calling from can be obtained by 
calling 5 1 1.

&&

$$

FX
827 
WWUS46 KOTX 301715
WSWOTX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Spokane WA
915 AM PST Thu Dec 30 2021

IDZ003-WAZ033-310115-
/O.CON.KOTX.WS.W.0016.000000T0000Z-211231T1200Z/
Idaho Palouse-Washington Palouse-
Including the cities of Potlatch, Rosalia, Plummer, Colfax,
Tekoa, Moscow, Genesee, Uniontown, La Crosse, Pullman, and
Oakesdale
915 AM PST Thu Dec 30 2021

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 4 AM PST FRIDAY...

* WHAT...Heavy snow. Additional snow accumulations between 3 and 5 
  inches but locally higher amounts are possible.

* WHERE...Potlatch, Rosalia, Plummer, Colfax, Tekoa, Moscow, 
  Genesee, Uniontown, La Crosse, Pullman, and Oakesdale.

* WHEN...Until 4 AM PST Friday.

* IMPACTS...Plan on slippery road conditions. The hazardous 
  conditions could impact the Thursday evening commute.

* ADDITIONAL DETAILS...Heaviest snow rates of up to one inch per 
  hour is expected Thursday afternoon.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in 
your vehicle in case of an emergency. The latest road conditions for 
the state you are calling from can be obtained by calling 5 1 1.

&&

$$

IDZ004-027-310115-
/O.CON.KOTX.WS.W.0016.000000T0000Z-211231T1800Z/
Central Panhandle Mountains-Lewis and Southern Nez Perce Counties-
Including the cities of Fourth Of July Pass, Craigmont,
Winchester, Wallace, Osburn, Nezperce, Dobson Pass, Soldiers
Meadow Road, Kamiah, Kellogg, St. Maries, Fernwood, Lookout Pass,
Mullan, and Pinehurst
915 AM PST Thu Dec 30 2021

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 AM PST FRIDAY...

* WHAT...Heavy snow expected. Total snow accumulations between 5 to 
  8 inches south of the Silver Valley and on the Camas Prairie. Snow 
  totals of 3 to 7 inches from the Silver Valley northward.

* WHERE...Fourth Of July Pass, Craigmont, Winchester, Wallace, 
  Osburn, Nezperce, Dobson Pass, Soldiers Meadow Road, Kamiah, 
  Kellogg, St. Maries, Fernwood, Lookout Pass, Mullan, and Pinehurst.

* WHEN...Until 10 AM PST Friday.

* IMPACTS...Plan on slippery road conditions. The hazardous 
  conditions could impact the Thursday evening and Friday morning 
  commutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in 
your vehicle in case of an emergency. The latest road conditions for 
the state you are calling from can be obtained by calling 5 1 1.

&&

$$

IDZ026-WAZ032-310115-
/O.CON.KOTX.WS.W.0016.000000T0000Z-211231T1200Z/
Lewiston Area-Lower Garfield and Asotin Counties-
Including the cities of Lewiston, Clarkston, Pomeroy, Lewiston
Grade, Gifford, Lapwai, Alpowa Summit, Culdesac, and Peck
915 AM PST Thu Dec 30 2021

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 4 AM PST FRIDAY...

* WHAT...Heavy snow expected. Total snow accumulations between 4 and 
  6 inches with localized accumulations of 6 to 8 inches possible.

* WHERE...Lewiston, Clarkston, Pomeroy, Lewiston Grade, Gifford, 
  Lapwai, Alpowa Summit, Culdesac, and Peck.

* WHEN...Until 4 AM PST Friday.

* IMPACTS...Plan on slippery road conditions. The hazardous 
  conditions could impact the Thursday evening commute.

* ADDITIONAL DETAILS...Heaviest snow rates of between a half an inch 
  per hour to one inch per hour is expected Thursday afternoon.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in 
your vehicle in case of an emergency. The latest road conditions for 
the state you are calling from can be obtained by calling 5 1 1.

&&

$$

WAZ031-310115-
/O.CON.KOTX.WS.W.0016.000000T0000Z-211231T1200Z/
Northeast Blue Mountains-
Including the cities of Mountain Road, Anatone, Peola, and
Cloverland Road
915 AM PST Thu Dec 30 2021

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 4 AM PST FRIDAY...

* WHAT...Snow expected. Total snow accumulations of 6 to 10 inches. 

* WHERE...Mountain Road, Anatone, Peola, and Cloverland Road.

* WHEN...Until 4 AM PST Friday.

* IMPACTS...Travel could be very difficult.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in 
your vehicle in case of an emergency. The latest road conditions for 
the state you are calling from can be obtained by calling 5 1 1.

&&

$$

WAZ034-302300-
/O.EXA.KOTX.WW.Y.0049.000000T0000Z-211230T2300Z/
Moses Lake Area-
Including the cities of Ephrata, Othello, Quincy, and Moses Lake
915 AM PST Thu Dec 30 2021

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 3 PM PST THIS AFTERNOON...

* WHAT...Snow. Total snow accumulation 1 to 3 inches.

* WHERE...Ephrata, Othello, Quincy, and Moses Lake.

* WHEN...Until 3 PM PST this afternoon.

* IMPACTS...Plan on slippery road conditions. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. The latest road 
conditions for the state you are calling from can be obtained by 
calling 5 1 1.

&&

$$

IDZ002-WAZ035-036-302300-
/O.CON.KOTX.WW.Y.0049.000000T0000Z-211230T2300Z/
Coeur d'Alene Area-Upper Columbia Basin-Spokane Area-
Including the cities of Rockford, Grand Coulee, Spokane Valley,
Coulee City, Creston, Worley, Coeur d'Alene, Davenport, Cheney,
Fairfield, Hayden, Post Falls, Airway Heights, Harrington,
Odessa, Downtown Spokane, Ritzville, and Wilbur
915 AM PST Thu Dec 30 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 3 PM PST THIS 
AFTERNOON...

* WHAT...Snow. Additional snow accumulations up to two inches.

* WHERE...Rockford, Grand Coulee, Spokane Valley, Coulee City, 
  Creston, Worley, Coeur d'Alene, Davenport, Cheney, Fairfield, 
  Hayden, Post Falls, Airway Heights, Harrington, Odessa, Downtown 
  Spokane, Ritzville, and Wilbur.

* WHEN...Until 3 PM PST this afternoon.

* IMPACTS...Plan on slippery road conditions. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. The latest road 
conditions for the state you are calling from can be obtained by 
calling 5 1 1.

&&

$$

WAZ048-310115-
/O.CON.KOTX.WW.Y.0049.000000T0000Z-211231T0300Z/
Western Chelan County-
Including the cities of Holden Village, Stehekin, and Stevens
Pass
915 AM PST Thu Dec 30 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 7 PM PST THIS 
EVENING...

* WHAT...Snow expected. Total snow accumulations between 8 and 12 
  inches mainly near the Cascade crest including Stevens Pass.

* WHERE...Holden Village, Stehekin, and Stevens Pass.

* WHEN...Until 7 PM PST this evening.

* IMPACTS...Travel could be very difficult.

* ADDITIONAL DETAILS...Heaviest snowfall is expected Thursday 
  morning.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. The latest road 
conditions for the state you are calling from can be obtained by 
calling 5 1 1.

&&

$$

JW
971 
WWUS46 KOTX 302149
WSWOTX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Spokane WA
149 PM PST Thu Dec 30 2021

IDZ003-WAZ033-310800-
/O.CON.KOTX.WS.W.0016.000000T0000Z-211231T1200Z/
Idaho Palouse-Washington Palouse-
Including the cities of Potlatch, Rosalia, Plummer, Colfax,
Tekoa, Moscow, Genesee, Uniontown, La Crosse, Pullman, and
Oakesdale
149 PM PST Thu Dec 30 2021

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 4 AM PST FRIDAY...

* WHAT...Heavy snow. Additional snow accumulations between 2 and 4 
  inches with local additional accumulations up to 5 inches.

* WHERE...Potlatch, Rosalia, Plummer, Colfax, Tekoa, Moscow, 
  Genesee, Uniontown, La Crosse, Pullman, and Oakesdale.

* WHEN...Until 4 AM PST Friday.

* IMPACTS...Plan on slippery road conditions. The hazardous 
  conditions could impact the Thursday evening commute.

* ADDITIONAL DETAILS...Heaviest snow rates of up to one inch per 
  hour is expected this afternoon.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in 
your vehicle in case of an emergency. The latest road conditions for 
the state you are calling from can be obtained by calling 5 1 1.

&&

$$

IDZ004-027-310800-
/O.CON.KOTX.WS.W.0016.000000T0000Z-211231T1800Z/
Central Panhandle Mountains-Lewis and Southern Nez Perce Counties-
Including the cities of Fourth Of July Pass, Craigmont,
Winchester, Wallace, Osburn, Nezperce, Dobson Pass, Soldiers
Meadow Road, Kamiah, Kellogg, St. Maries, Fernwood, Lookout Pass,
Mullan, and Pinehurst
149 PM PST Thu Dec 30 2021

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 AM PST FRIDAY...

* WHAT...Heavy snow expected. Additional snow accumulations between 
  2 to 5 inches south of the Silver Valley and on the Camas Prairie. 
  Snow totals of 1 to 3 inches from the Silver Valley northward.

* WHERE...Fourth Of July Pass, Craigmont, Winchester, Wallace, 
  Osburn, Nezperce, Dobson Pass, Soldiers Meadow Road, Kamiah, 
  Kellogg, St. Maries, Fernwood, Lookout Pass, Mullan, and Pinehurst.

* WHEN...Until 10 AM PST Friday.

* IMPACTS...Plan on slippery road conditions. The hazardous 
  conditions could impact the Thursday evening and Friday morning 
  commutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in 
your vehicle in case of an emergency. The latest road conditions for 
the state you are calling from can be obtained by calling 5 1 1.

&&

$$

IDZ026-WAZ032-310800-
/O.CON.KOTX.WS.W.0016.000000T0000Z-211231T1200Z/
Lewiston Area-Lower Garfield and Asotin Counties-
Including the cities of Lewiston, Clarkston, Pomeroy, Lewiston
Grade, Gifford, Lapwai, Alpowa Summit, Culdesac, and Peck
149 PM PST Thu Dec 30 2021

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 4 AM PST FRIDAY...

* WHAT...Heavy snow expected. Additional snow accumulations between 
  2 and 3 inches with localized additional accumulations of 4 inches 
  possible.

* WHERE...Lewiston, Clarkston, Pomeroy, Lewiston Grade, Gifford, 
  Lapwai, Alpowa Summit, Culdesac, and Peck.

* WHEN...Until 4 AM PST Friday.

* IMPACTS...Plan on slippery road conditions. The hazardous 
  conditions could impact the Thursday evening commute.

* ADDITIONAL DETAILS...Heaviest snow rates of between a half an inch 
  per hour to one inch per hour is expected this afternoon.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in 
your vehicle in case of an emergency. The latest road conditions for 
the state you are calling from can be obtained by calling 5 1 1.

&&

$$

WAZ031-310800-
/O.CON.KOTX.WS.W.0016.000000T0000Z-211231T1200Z/
Northeast Blue Mountains-
Including the cities of Mountain Road, Anatone, Peola, and
Cloverland Road
149 PM PST Thu Dec 30 2021

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 4 AM PST FRIDAY...

* WHAT...Heavy snow. Additional snow accumulations between 2 and 4 
  inches with localized additional accumulations of up to 6 inches.

* WHERE...Mountain Road, Anatone, Peola, and Cloverland Road.

* WHEN...Until 4 AM PST Friday.

* IMPACTS...Travel could be very difficult.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in 
your vehicle in case of an emergency. The latest road conditions for 
the state you are calling from can be obtained by calling 5 1 1.

&&

$$

WAZ043-044-310800-
/O.NEW.KOTX.WC.Y.0007.211231T0800Z-211231T2000Z/
Okanogan Valley-Waterville Plateau-
Including the cities of Disautel Pass, Brewster, Badger Mountain
Road, Omak, Bridgeport, Nespelem, Mansfield, Oroville,
Waterville, and Okanogan
149 PM PST Thu Dec 30 2021

...WIND CHILL ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO NOON PST 
FRIDAY...

* WHAT...Very cold wind chills expected. Wind chills as low as 15 
  below zero.

* WHERE...Disautel Pass, Brewster, Badger Mountain Road, Omak, 
  Bridgeport, Nespelem, Mansfield, Oroville, Waterville, and 
  Okanogan.

* WHEN...From Midnight tonight to Noon PST Friday.

* IMPACTS...The dangerously cold wind chills could result in 
  hypothermia or frostbite if precautions are not taken.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use caution while traveling outside. Wear appropriate clothing, a 
hat, and gloves.

&&

$$

IDZ002-WAZ035-036-302300-
/O.CON.KOTX.WW.Y.0049.000000T0000Z-211230T2300Z/
Coeur d'Alene Area-Upper Columbia Basin-Spokane Area-
Including the cities of Rockford, Grand Coulee, Spokane Valley,
Coulee City, Creston, Worley, Coeur d'Alene, Davenport, Cheney,
Fairfield, Hayden, Post Falls, Airway Heights, Harrington,
Odessa, Downtown Spokane, Ritzville, and Wilbur
149 PM PST Thu Dec 30 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 3 PM PST THIS 
AFTERNOON...

* WHAT...Snow. Additional snow accumulations up to two inches.

* WHERE...Rockford, Grand Coulee, Spokane Valley, Coulee City, 
  Creston, Worley, Coeur d'Alene, Davenport, Cheney, Fairfield, 
  Hayden, Post Falls, Airway Heights, Harrington, Odessa, Downtown 
  Spokane, Ritzville, and Wilbur.

* WHEN...Until 3 PM PST this afternoon.

* IMPACTS...Plan on slippery road conditions. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. The latest road 
conditions for the state you are calling from can be obtained by 
calling 5 1 1.

&&

$$

WAZ034-302300-
/O.CON.KOTX.WW.Y.0049.000000T0000Z-211230T2300Z/
Moses Lake Area-
Including the cities of Ephrata, Othello, Quincy, and Moses Lake
149 PM PST Thu Dec 30 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 3 PM PST THIS 
AFTERNOON...

* WHAT...Snow. Additional snow accumulations up to an inch.

* WHERE...Ephrata, Othello, Quincy, and Moses Lake.

* WHEN...Until 3 PM PST this afternoon.

* IMPACTS...Plan on slippery road conditions. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. The latest road 
conditions for the state you are calling from can be obtained by 
calling 5 1 1.

&&

$$

WAZ048-310300-
/O.CON.KOTX.WW.Y.0049.000000T0000Z-211231T0300Z/
Western Chelan County-
Including the cities of Holden Village, Stehekin, and Stevens
Pass
149 PM PST Thu Dec 30 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 7 PM PST THIS 
EVENING...

* WHAT...Snow. Additional snow accumulations up to two inches, 
  however a possible additional accumulation of up to 4 inches is 
  possible near Stevens Pass.

* WHERE...Holden Village, Stehekin, and Stevens Pass.

* WHEN...Until 7 PM PST this evening.

* IMPACTS...Travel could be very difficult.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. The latest road 
conditions for the state you are calling from can be obtained by 
calling 5 1 1.

&&

$$

RP
536 
WWUS46 KOTX 302310
WSWOTX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Spokane WA
310 PM PST Thu Dec 30 2021

IDZ002-WAZ034>036-310015-
/O.EXP.KOTX.WW.Y.0049.000000T0000Z-211230T2300Z/
Coeur d'Alene Area-Moses Lake Area-Upper Columbia Basin-Spokane
Area-
Including the cities of Quincy, Worley, Cheney, Fairfield,
Hayden, Airway Heights, Ephrata, Downtown Spokane, Odessa,
Spokane Valley, Othello, Moses Lake, Rockford, Coulee City,
Wilbur, Coeur d'Alene, Post Falls, Harrington, Davenport, Grand
Coulee, Creston, and Ritzville
310 PM PST Thu Dec 30 2021

...WINTER WEATHER ADVISORY HAS EXPIRED...

Snowfall has ended for the Moses Lake and Upper Columbia Basin area 
had ended however snowfall will continue on just a bit longer for 
the Spokane and Coeur d'Alene areas.

$$

IDZ003-WAZ033-310715-
/O.CON.KOTX.WS.W.0016.000000T0000Z-211231T1200Z/
Idaho Palouse-Washington Palouse-
Including the cities of Potlatch, Rosalia, Plummer, Colfax,
Tekoa, Moscow, Genesee, Uniontown, La Crosse, Pullman, and
Oakesdale
310 PM PST Thu Dec 30 2021

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 4 AM PST FRIDAY...

* WHAT...Heavy snow. Additional snow accumulations up to two inches.

* WHERE...Potlatch, Rosalia, Plummer, Colfax, Tekoa, Moscow, 
  Genesee, Uniontown, La Crosse, Pullman, and Oakesdale.

* WHEN...Until 4 AM PST Friday.

* IMPACTS...Plan on slippery road conditions. The hazardous 
  conditions could impact the Thursday evening commute.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in 
your vehicle in case of an emergency. The latest road conditions for 
the state you are calling from can be obtained by calling 5 1 1.

&&

$$

IDZ004-027-310715-
/O.CON.KOTX.WS.W.0016.000000T0000Z-211231T1800Z/
Central Panhandle Mountains-Lewis and Southern Nez Perce Counties-
Including the cities of Fourth Of July Pass, Craigmont,
Winchester, Wallace, Osburn, Nezperce, Dobson Pass, Soldiers
Meadow Road, Kamiah, Kellogg, St. Maries, Fernwood, Lookout Pass,
Mullan, and Pinehurst
310 PM PST Thu Dec 30 2021

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 AM PST FRIDAY...

* WHAT...Heavy snow. Additional snow accumulations between 2 and 4 
  inches.

* WHERE...Fourth Of July Pass, Craigmont, Winchester, Wallace, 
  Osburn, Nezperce, Dobson Pass, Soldiers Meadow Road, Kamiah, 
  Kellogg, St. Maries, Fernwood, Lookout Pass, Mullan, and Pinehurst.

* WHEN...Until 10 AM PST Friday.

* IMPACTS...Plan on slippery road conditions. The hazardous 
  conditions could impact the Thursday evening and Friday morning 
  commutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in 
your vehicle in case of an emergency. The latest road conditions for 
the state you are calling from can be obtained by calling 5 1 1.

&&

$$

IDZ026-WAZ032-310715-
/O.CON.KOTX.WS.W.0016.000000T0000Z-211231T1200Z/
Lewiston Area-Lower Garfield and Asotin Counties-
Including the cities of Lewiston, Clarkston, Pomeroy, Lewiston
Grade, Gifford, Lapwai, Alpowa Summit, Culdesac, and Peck
310 PM PST Thu Dec 30 2021

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 4 AM PST FRIDAY...

* WHAT...Heavy snow. Additional snow accumulations between 1 and 3 
  inches.

* WHERE...Lewiston, Clarkston, Pomeroy, Lewiston Grade, Gifford, 
  Lapwai, Alpowa Summit, Culdesac, and Peck.

* WHEN...Until 4 AM PST Friday.

* IMPACTS...Plan on slippery road conditions. The hazardous 
  conditions could impact the Thursday evening commute.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in 
your vehicle in case of an emergency. The latest road conditions for 
the state you are calling from can be obtained by calling 5 1 1.

&&

$$

WAZ031-310715-
/O.CON.KOTX.WS.W.0016.000000T0000Z-211231T1200Z/
Northeast Blue Mountains-
Including the cities of Mountain Road, Anatone, Peola, and
Cloverland Road
310 PM PST Thu Dec 30 2021

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 4 AM PST FRIDAY...

* WHAT...Heavy snow. Additional snow accumulations up to 3 inches.

* WHERE...Mountain Road, Anatone, Peola, and Cloverland Road.

* WHEN...Until 4 AM PST Friday.

* IMPACTS...Plan on slippery road conditions. The hazardous 
  conditions could impact the Thursday evening commute.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in 
your vehicle in case of an emergency. The latest road conditions for 
the state you are calling from can be obtained by calling 5 1 1.

&&

$$

WAZ048-310300-
/O.CON.KOTX.WW.Y.0049.000000T0000Z-211231T0300Z/
Western Chelan County-
Including the cities of Holden Village, Stehekin, and Stevens
Pass
310 PM PST Thu Dec 30 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 7 PM PST THIS 
EVENING...

* WHAT...Snow. Additional snow accumulations up to one inch.

* WHERE...Holden Village, Stehekin, and Stevens Pass.

* WHEN...Until 7 PM PST this evening.

* IMPACTS...Plan on slippery road conditions. The hazardous 
  conditions could impact the Thursday evening commute.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. The latest road 
conditions for the state you are calling from can be obtained by 
calling 5 1 1.

&&

$$

WAZ043-044-310715-
/O.CON.KOTX.WC.Y.0007.211231T0800Z-211231T2000Z/
Okanogan Valley-Waterville Plateau-
Including the cities of Disautel Pass, Brewster, Badger Mountain
Road, Omak, Bridgeport, Nespelem, Mansfield, Oroville,
Waterville, and Okanogan
310 PM PST Thu Dec 30 2021

...WIND CHILL ADVISORY REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 
NOON PST FRIDAY...

* WHAT...Very cold wind chills expected. Wind chills as low as 15 
  below zero.

* WHERE...Disautel Pass, Brewster, Badger Mountain Road, Omak, 
  Bridgeport, Nespelem, Mansfield, Oroville, Waterville, and 
  Okanogan.

* WHEN...From Midnight tonight to Noon PST Friday.

* IMPACTS...The dangerously cold wind chills could result in 
  hypothermia or frostbite if precautions are not taken.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use caution while traveling outside. Wear appropriate clothing, a 
hat, and gloves.

&&

$$

RP
215 
WWUS46 KOTX 310248
WSWOTX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Spokane WA
648 PM PST Thu Dec 30 2021

WAZ048-310400-
/O.EXP.KOTX.WW.Y.0049.000000T0000Z-211231T0300Z/
Western Chelan County-
Including the cities of Holden Village, Stehekin, and Stevens
Pass
648 PM PST Thu Dec 30 2021

...WINTER WEATHER ADVISORY WILL EXPIRE AT 7 PM PST THIS EVENING...

Snow is winding down with little in the way of additional snow 
accumulations for the rest of tonight.

$$

IDZ003-WAZ033-311200-
/O.CON.KOTX.WS.W.0016.000000T0000Z-211231T1200Z/
Idaho Palouse-Washington Palouse-
Including the cities of Potlatch, Rosalia, Plummer, Colfax,
Tekoa, Moscow, Genesee, Uniontown, La Crosse, Pullman, and
Oakesdale
648 PM PST Thu Dec 30 2021

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 4 AM PST FRIDAY...

* WHAT...Heavy snow. Additional snow accumulations up to one inch.

* WHERE...Potlatch, Rosalia, Plummer, Colfax, Tekoa, Moscow, 
  Genesee, Uniontown, La Crosse, Pullman, and Oakesdale.

* WHEN...Until 4 AM PST Friday.

* IMPACTS...Plan on slippery road conditions. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in 
your vehicle in case of an emergency. The latest road conditions for 
the state you are calling from can be obtained by calling 5 1 1.

&&

$$

IDZ004-027-311245-
/O.CON.KOTX.WS.W.0016.000000T0000Z-211231T1800Z/
Central Panhandle Mountains-Lewis and Southern Nez Perce Counties-
Including the cities of Fourth Of July Pass, Craigmont,
Winchester, Wallace, Osburn, Nezperce, Dobson Pass, Soldiers
Meadow Road, Kamiah, Kellogg, St. Maries, Fernwood, Lookout Pass,
Mullan, and Pinehurst
648 PM PST Thu Dec 30 2021

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 AM PST FRIDAY...

* WHAT...Heavy snow. Additional snow accumulations of 1 to 3 inches.

* WHERE...Fourth Of July Pass, Craigmont, Winchester, Wallace, 
  Osburn, Nezperce, Dobson Pass, Soldiers Meadow Road, Kamiah, 
  Kellogg, St. Maries, Fernwood, Lookout Pass, Mullan, and Pinehurst.

* WHEN...Until 10 AM PST Friday.

* IMPACTS...Plan on slippery road conditions. The hazardous 
  conditions could impact the Friday morning commute.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in 
your vehicle in case of an emergency. The latest road conditions for 
the state you are calling from can be obtained by calling 5 1 1.

&&

$$

IDZ026-WAZ032-311200-
/O.CON.KOTX.WS.W.0016.000000T0000Z-211231T1200Z/
Lewiston Area-Lower Garfield and Asotin Counties-
Including the cities of Lewiston, Clarkston, Pomeroy, Lewiston
Grade, Gifford, Lapwai, Alpowa Summit, Culdesac, and Peck
648 PM PST Thu Dec 30 2021

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 4 AM PST FRIDAY...

* WHAT...Heavy snow. Additional snow accumulations up to two inches.

* WHERE...Lewiston, Clarkston, Pomeroy, Lewiston Grade, Gifford, 
  Lapwai, Alpowa Summit, Culdesac, and Peck.

* WHEN...Until 4 AM PST Friday.

* IMPACTS...Plan on slippery road conditions. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in 
your vehicle in case of an emergency. The latest road conditions for 
the state you are calling from can be obtained by calling 5 1 1.

&&

$$

WAZ031-311200-
/O.CON.KOTX.WS.W.0016.000000T0000Z-211231T1200Z/
Northeast Blue Mountains-
Including the cities of Mountain Road, Anatone, Peola, and
Cloverland Road
648 PM PST Thu Dec 30 2021

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 4 AM PST FRIDAY...

* WHAT...Heavy snow. Additional snow accumulations up to two inches.

* WHERE...Mountain Road, Anatone, Peola, and Cloverland Road.

* WHEN...Until 4 AM PST Friday.

* IMPACTS...Travel could be very difficult.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in 
your vehicle in case of an emergency. The latest road conditions for 
the state you are calling from can be obtained by calling 5 1 1.

&&

$$

WAZ043-044-311245-
/O.CON.KOTX.WC.Y.0007.211231T0800Z-211231T2000Z/
Okanogan Valley-Waterville Plateau-
Including the cities of Disautel Pass, Brewster, Badger Mountain
Road, Omak, Bridgeport, Nespelem, Mansfield, Oroville,
Waterville, and Okanogan
648 PM PST Thu Dec 30 2021

...WIND CHILL ADVISORY REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 
NOON PST FRIDAY...

* WHAT...Very cold wind chills expected. Wind chills as low as 20 
  below zero.

* WHERE...Disautel Pass, Brewster, Badger Mountain Road, Omak, 
  Bridgeport, Nespelem, Mansfield, Oroville, Waterville, and 
  Okanogan.

* WHEN...From Midnight tonight to Noon PST Friday.

* IMPACTS...The dangerously cold wind chills could cause frostbite 
  on exposed skin in as little as 30 minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use caution while traveling outside. Wear appropriate clothing, a 
hat, and gloves.

&&

$$

SVH
573 
WWUS46 KOTX 311157
WSWOTX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Spokane WA
357 AM PST Fri Dec 31 2021

IDZ004-027-311800-
/O.CAN.KOTX.WS.W.0016.000000T0000Z-211231T1800Z/
/O.NEW.KOTX.WW.Y.0050.211231T1157Z-211231T1800Z/
Central Panhandle Mountains-Lewis and Southern Nez Perce Counties-
Including the cities of Fourth Of July Pass, Craigmont,
Winchester, Wallace, Osburn, Nezperce, Dobson Pass, Soldiers
Meadow Road, Kamiah, Kellogg, St. Maries, Fernwood, Lookout Pass,
Mullan, and Pinehurst
357 AM PST Fri Dec 31 2021

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 10 AM PST THIS MORNING...
...WINTER STORM WARNING IS CANCELLED...

* WHAT...Snow. Additional snow accumulations up to two inches. 

* WHERE...Fourth Of July Pass, Craigmont, Winchester, Wallace, 
  Osburn, Nezperce, Dobson Pass, Soldiers Meadow Road, Kamiah, 
  Kellogg, St. Maries, Fernwood, Lookout Pass, Mullan, and Pinehurst.

* WHEN...Until 10 AM PST this morning.

* IMPACTS...Plan on slippery road conditions. The hazardous 
  conditions could impact the Friday morning commute.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. The latest road 
conditions for the state you are calling from can be obtained by 
calling 5 1 1.

&&

$$

IDZ003-026-WAZ031>033-311300-
/O.EXP.KOTX.WS.W.0016.000000T0000Z-211231T1200Z/
Idaho Palouse-Lewiston Area-Northeast Blue Mountains-Lower
Garfield and Asotin Counties-Washington Palouse-
Including the cities of Colfax, Pomeroy, Peola, Cloverland Road,
Moscow, Uniontown, Peck, Oakesdale, Rosalia, Tekoa, Lewiston
Grade, La Crosse, Lapwai, Culdesac, Lewiston, Potlatch,
Clarkston, Plummer, Anatone, Gifford, Genesee, Mountain Road,
Alpowa Summit, and Pullman
357 AM PST Fri Dec 31 2021

...WINTER STORM WARNING WILL EXPIRE AT 4 AM PST EARLY THIS MORNING...

Bands of light snow will linger through mid morning. Additional 
accumulations should remain less than an inch, which could lead to 
some slick winter driving conditions. The threat for significant 
snow has ended.

$$

WAZ043-044-312000-
/O.CON.KOTX.WC.Y.0007.000000T0000Z-211231T2000Z/
Okanogan Valley-Waterville Plateau-
Including the cities of Disautel Pass, Brewster, Badger Mountain
Road, Omak, Bridgeport, Nespelem, Mansfield, Oroville,
Waterville, and Okanogan
357 AM PST Fri Dec 31 2021

...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL NOON PST TODAY...

* WHAT...Very cold wind chills. Wind chills as low as 20 below zero.

* WHERE...Disautel Pass, Brewster, Badger Mountain Road, Omak, 
  Bridgeport, Nespelem, Mansfield, Oroville, Waterville, and 
  Okanogan.

* WHEN...Until Noon PST today.

* IMPACTS...The dangerously cold wind chills could result in 
  hypothermia or frostbite if precautions are not taken.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use caution while traveling outside. Wear appropriate clothing, a 
hat, and gloves.

&&

$$

RF

The office that day

Everything else NWS Spokane, WA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Dec 29, 1:43 PM PSTWinter Weather AdvisoryOTXAdams, Asotin, Chelan, Douglas, Garfield, Grant and 3 more29 hr

Nearby

Winter Storm Warnings in Idaho, 2021Winter Storm Warnings in Washington, 2021Every winter storm warning in 2021

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.