Alert archive / Idaho / Wind Chill Advisories in 2021

Wind Chill Advisory 1, NWS Spokane, WA

February 10, 2021Bonner County, Boundary County, Kootenai County, Idaho; Douglas County, Okanogan County, Washington

NWS Spokane, WA issued this wind chill advisory at Feb 10, 2021, 1:54 AM PST for Bonner County, Boundary County, Kootenai County, Idaho; Douglas County, Okanogan County, Washington. It took effect at Feb 11, 2021, 1:00 AM PST. It was in force for 10 hr.

The area

The counties it named.

The facts

Issued
Feb 10, 2021, 1:54 AM PST (09:54 UTC)
In effect from
Feb 11, 2021, 1:00 AM PST
Expired
Feb 11, 2021, 10:49 AM PST
In force
10 hr
Issued by
NWS Spokane, WA

Counties Bonner County, ID, Boundary County, ID, Kootenai County, ID, Douglas County, WA, Okanogan County, WA

The radar

The Spokane radar (KOTX), 60 km from the middle of the area, began a volume at 09:53 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.

The nearest sounding before it

Spokane, WA (KOTX), launched 00:00Z, 9.9 hours before the alert went out and 121 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 00:00Z on 2021-02-10Temperature 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 00:00Z on 2021-02-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 77 square meters per square second.1939587897117Sfc1 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
1668 m above ground
0-6 km bulk shear
94 kt
0-1 km storm-relative helicity
77 m²/s²
0-3 km storm-relative helicity
319 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

031 
WWUS46 KOTX 100954
WSWOTX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Spokane WA
154 AM PST Wed Feb 10 2021

...VERY COLD AND WINDY CONDITIONS TO BRING DANGEROUSLY COLD WIND 
CHILLS TO THE NORTH IDAHO PANHANDLE AND OKANOGAN VALLEY LATE TONIGHT 
AND THURSDAY MORNING AND THEN AGAIN FRIDAY MORNING...

.Winds will increase Wednesday night into Thursday morning as arctic 
air moves into the region.  This will lead to dangerously cold wind 
chills. North to northeast winds of 15 to 25 mph with gusts to near 
35 MPH are expected.

IDZ001-002-WAZ043-110000-
/O.NEW.KOTX.WC.Y.0001.210211T0900Z-210211T1900Z/
Northern Panhandle-Coeur d'Alene Area-Okanogan Valley-
Including the cities of Eastport, Okanogan, Sandpoint, Hayden,
Worley, Coeur d'Alene, Oroville, Omak, Bonners Ferry, Athol, Post
Falls, Nespelem, Brewster, Disautel Pass, Bridgeport, Schweitzer
Mountain Road, and Priest River
154 AM PST Wed Feb 10 2021

...WIND CHILL ADVISORY IN EFFECT FROM 1 AM TO 11 AM PST THURSDAY...

* WHAT...Very cold wind chills expected. Wind chills 15 below to 5 
  below zero.

* WHERE...Okanogan, Sandpoint, Hayden, Worley, Coeur d'Alene, 
  Oroville, Omak, Athol, Post Falls, Nespelem, Brewster, Bridgeport, 
  and Priest River.

* WHEN...From 1 AM to 11 AM PST Thursday.

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

* ADDITIONAL DETAILS...Another round of dangerously cold wind chills 
  is expected Thursday night and Friday morning.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

JW
5 follow-up statements
329 
WWUS46 KOTX 102233
WSWOTX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Spokane WA
233 PM PST Wed Feb 10 2021

IDZ001-002-WAZ043-111200-
/O.NEW.KOTX.WC.Y.0002.210212T0900Z-210212T1900Z/
/O.CON.KOTX.WC.Y.0001.210211T0900Z-210211T1900Z/
Northern Panhandle-Coeur d'Alene Area-Okanogan Valley-
Including the cities of Eastport, Okanogan, Sandpoint, Hayden,
Worley, Coeur d'Alene, Oroville, Omak, Bonners Ferry, Athol, Post
Falls, Nespelem, Brewster, Disautel Pass, Bridgeport, Schweitzer
Mountain Road, and Priest River
233 PM PST Wed Feb 10 2021

...WIND CHILL ADVISORY REMAINS IN EFFECT FROM 1 AM TO 11 AM PST 
THURSDAY...
...WIND CHILL ADVISORY IN EFFECT FROM 1 AM TO 11 AM PST FRIDAY...

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

* WHERE...Eastport, Okanogan, Sandpoint, Hayden, Worley, Coeur 
  d'Alene, Oroville, Omak, Bonners Ferry, Athol, Post Falls, 
  Nespelem, Brewster, Disautel Pass, Bridgeport, Schweitzer Mountain 
  Road, and Priest River.

* WHEN...From 1 AM to 11 AM PST Friday and from 1 AM to 11 AM PST 
  Thursday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

WAZ031-111200-
/O.NEW.KOTX.WW.Y.0011.210212T0600Z-210213T0600Z/
Northeast Blue Mountains-
Including the cities of Mountain Road, Anatone, Peola, and
Cloverland Road
233 PM PST Wed Feb 10 2021

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

* WHAT...Snow expected. Total snow accumulations of 3 to 6 inches 
  and locally higher above 4000 feet.

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

* WHEN...From 10 PM Thursday to 10 PM PST Friday.

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

&&

$$

WAZ036-037-111200-
/O.NEW.KOTX.WC.Y.0002.210212T0900Z-210212T1900Z/
Spokane Area-Northeast Mountains-
Including the cities of Rockford, Spokane Valley, Chewelah,
Colville, Cheney, Northport, Flowery Trail Road, Fairfield,
Orin-Rice Road, Airway Heights, Newport, Deer Park,
Springdale-Hunters Road, Downtown Spokane, Davenport, and Kettle
Falls
233 PM PST Wed Feb 10 2021

...WIND CHILL ADVISORY IN EFFECT FROM 1 AM TO 11 AM PST FRIDAY...

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

* WHERE...Rockford, Spokane Valley, Chewelah, Colville, Cheney, 
  Northport, Flowery Trail Road, Fairfield, Orin-Rice Road, Airway 
  Heights, Newport, Deer Park, Springdale-Hunters Road, Downtown 
  Spokane, Davenport, and Kettle Falls.

* WHEN...From 1 AM to 11 AM 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.

&&

$$

Dewey
559 
WWUS46 KOTX 110550
WSWOTX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Spokane WA
950 PM PST Wed Feb 10 2021

IDZ001-002-WAZ043-111800-
/O.CON.KOTX.WC.Y.0001.210211T0900Z-210211T1900Z/
/O.CON.KOTX.WC.Y.0002.210212T0900Z-210212T1900Z/
Northern Panhandle-Coeur d'Alene Area-Okanogan Valley-
Including the cities of Eastport, Okanogan, Sandpoint, Hayden,
Worley, Coeur d'Alene, Oroville, Omak, Bonners Ferry, Athol, Post
Falls, Nespelem, Brewster, Disautel Pass, Bridgeport, Schweitzer
Mountain Road, and Priest River
950 PM PST Wed Feb 10 2021

...WIND CHILL ADVISORY FOR THURSDAY AND FRIDAY MORNING...

* WHAT...For the first Wind Chill Advisory, very cold wind chills 
  expected. Wind chills as low as 20 to 30 below zero. For the 
  second Wind Chill Advisory, very cold wind chills expected. Wind 
  chills as low as 35 below zero.

* WHERE...Eastport, Okanogan, Sandpoint, Hayden, Worley, Coeur 
  d'Alene, Oroville, Omak, Bonners Ferry, Athol, Post Falls, 
  Nespelem, Brewster, Disautel Pass, Bridgeport, Schweitzer Mountain 
  Road, and Priest River.

* WHEN...For the first Wind Chill Advisory, from 1 AM to 11 AM PST 
  Thursday. For the second Wind Chill Advisory, from 1 AM to 11 AM 
  PST Friday.

* IMPACTS...The dangerously cold wind chills could cause frostbite 
  on exposed skin in as little as 10 minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

WAZ031-111800-
/O.CON.KOTX.WW.Y.0011.210212T0600Z-210213T0600Z/
Northeast Blue Mountains-
Including the cities of Mountain Road, Anatone, Peola, and
Cloverland Road
950 PM PST Wed Feb 10 2021

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

* WHAT...Snow expected. Total snow accumulations of 4 to 8 inches.

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

* WHEN...From 10 PM Thursday to 10 PM PST Friday.

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

&&

$$

WAZ036-037-111800-
/O.CON.KOTX.WC.Y.0002.210212T0900Z-210212T1900Z/
Spokane Area-Northeast Mountains-
Including the cities of Rockford, Spokane Valley, Chewelah,
Colville, Cheney, Northport, Flowery Trail Road, Fairfield,
Orin-Rice Road, Airway Heights, Newport, Deer Park,
Springdale-Hunters Road, Downtown Spokane, Davenport, and Kettle
Falls
950 PM PST Wed Feb 10 2021

...WIND CHILL ADVISORY REMAINS IN EFFECT FROM 1 AM TO 11 AM PST 
FRIDAY...

* WHAT...Very cold wind chills expected. Wind chills as low as 10 to 
  20 below zero.

* WHERE...Rockford, Spokane Valley, Chewelah, Colville, Cheney, 
  Northport, Flowery Trail Road, Fairfield, Orin-Rice Road, Airway 
  Heights, Newport, Deer Park, Springdale-Hunters Road, Downtown 
  Spokane, Davenport, and Kettle Falls.

* WHEN...From 1 AM to 11 AM 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.

&&

$$

FX
642 
WWUS46 KOTX 110656
WSWOTX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Spokane WA
1056 PM PST Wed Feb 10 2021

IDZ001-002-WAZ043-111500-
/O.CON.KOTX.WC.Y.0001.210211T0900Z-210211T1900Z/
/O.CON.KOTX.WC.Y.0002.210212T0900Z-210212T1900Z/
Northern Panhandle-Coeur d'Alene Area-Okanogan Valley-
Including the cities of Eastport, Okanogan, Sandpoint, Hayden,
Worley, Coeur d'Alene, Oroville, Omak, Bonners Ferry, Athol, Post
Falls, Nespelem, Brewster, Disautel Pass, Bridgeport, Schweitzer
Mountain Road, and Priest River
1056 PM PST Wed Feb 10 2021

...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 11 AM PST THURSDAY...
...WIND CHILL ADVISORY REMAINS IN EFFECT FROM 1 AM TO 11 AM PST 
FRIDAY...

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

* WHERE...Eastport, Okanogan, Sandpoint, Hayden, Worley, Coeur 
  d'Alene, Oroville, Omak, Bonners Ferry, Athol, Post Falls, 
  Nespelem, Brewster, Disautel Pass, Bridgeport, Schweitzer Mountain 
  Road, and Priest River.

* WHEN...From 1 AM to 11 AM PST Thursday and 1 AM to 11 AM PST 
  Friday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

WAZ031-111500-
/O.CON.KOTX.WW.Y.0011.210212T0600Z-210213T0600Z/
Northeast Blue Mountains-
Including the cities of Mountain Road, Anatone, Peola, and
Cloverland Road
1056 PM PST Wed Feb 10 2021

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

* WHAT...Snow expected. Total snow accumulations of 4 to 8 inches.

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

* WHEN...From 10 PM Thursday to 10 PM PST Friday.

* IMPACTS...Plan on winter driving 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.

&&

$$

WAZ036-037-111500-
/O.CON.KOTX.WC.Y.0002.210212T0900Z-210212T1900Z/
Spokane Area-Northeast Mountains-
Including the cities of Rockford, Spokane Valley, Chewelah,
Colville, Cheney, Northport, Flowery Trail Road, Fairfield,
Orin-Rice Road, Airway Heights, Newport, Deer Park,
Springdale-Hunters Road, Downtown Spokane, Davenport, and Kettle
Falls
1056 PM PST Wed Feb 10 2021

...WIND CHILL ADVISORY REMAINS IN EFFECT FROM 1 AM TO 11 AM PST 
FRIDAY...

* WHAT...Very cold wind chills expected. Wind chills as low as 10 to 
  20 below zero.

* WHERE...Rockford, Spokane Valley, Chewelah, Colville, Cheney, 
  Northport, Flowery Trail Road, Fairfield, Orin-Rice Road, Airway 
  Heights, Newport, Deer Park, Springdale-Hunters Road, Downtown 
  Spokane, Davenport, and Kettle Falls.

* WHEN...From 1 AM to 11 AM PST Friday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

JW
550 
WWUS46 KOTX 111016
WSWOTX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Spokane WA
216 AM PST Thu Feb 11 2021

IDZ027-120000-
/O.EXB.KOTX.WW.Y.0011.210211T2100Z-210212T1800Z/
Lewis and Southern Nez Perce Counties-
Including the cities of Nezperce, Soldiers Meadow Road,
Craigmont, Winchester, and Kamiah
216 AM PST Thu Feb 11 2021

...WINTER WEATHER ADVISORY IN EFFECT FROM 1 PM THIS AFTERNOON TO 10 
AM PST FRIDAY...

* WHAT...Snow expected. Total snow accumulations of 3 to 5 inches.

* WHERE...Nezperce, Soldiers Meadow Road, Craigmont, Winchester, and 
  Kamiah.

* WHEN...From 1 PM this afternoon to 10 AM PST Friday.

* IMPACTS...Plan on winter driving 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.

&&

$$

IDZ026-WAZ032-120000-
/O.EXB.KOTX.WW.Y.0011.210212T0000Z-210212T1800Z/
Lewiston Area-Lower Garfield and Asotin Counties-
Including the cities of Lewiston, Clarkston, Pomeroy, Lewiston
Grade, Gifford, Lapwai, Alpowa Summit, Culdesac, and Peck
216 AM PST Thu Feb 11 2021

...WINTER WEATHER ADVISORY IN EFFECT FROM 4 PM THIS AFTERNOON TO 10 
AM PST FRIDAY...

* WHAT...Snow expected. Total snow accumulations of 2 to 4 inches.

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

* WHEN...From 4 PM this afternoon to 10 AM PST Friday.

* IMPACTS...Plan on winter driving conditions including the Thursday 
  evening and Friday morning 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.

&&

$$

WAZ031-120000-
/O.EXT.KOTX.WW.Y.0011.210211T2100Z-210213T0600Z/
Northeast Blue Mountains-
Including the cities of Mountain Road, Anatone, Peola, and
Cloverland Road
216 AM PST Thu Feb 11 2021

...WINTER WEATHER ADVISORY NOW IN EFFECT FROM 1 PM THIS AFTERNOON TO 
10 PM PST FRIDAY...

* WHAT...Snow expected. Total snow accumulations of 5 to 8 inches.

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

* WHEN...From 1 PM this afternoon to 10 PM PST Friday.

* IMPACTS...Plan on winter driving 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.

&&

$$

IDZ001-002-WAZ043-120000-
/O.CON.KOTX.WC.Y.0001.000000T0000Z-210211T1900Z/
/O.CON.KOTX.WC.Y.0002.210212T0900Z-210212T1900Z/
Northern Panhandle-Coeur d'Alene Area-Okanogan Valley-
Including the cities of Eastport, Okanogan, Sandpoint, Hayden,
Worley, Coeur d'Alene, Oroville, Omak, Bonners Ferry, Athol, Post
Falls, Nespelem, Brewster, Disautel Pass, Bridgeport, Schweitzer
Mountain Road, and Priest River
216 AM PST Thu Feb 11 2021

...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 11 AM PST THIS 
MORNING...
...WIND CHILL ADVISORY REMAINS IN EFFECT FROM 1 AM TO 11 AM PST 
FRIDAY...

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

* WHERE...Eastport, Okanogan, Sandpoint, Hayden, Worley, Coeur 
  d'Alene, Oroville, Omak, Bonners Ferry, Athol, Post Falls, 
  Nespelem, Brewster, Disautel Pass, Bridgeport, Schweitzer Mountain 
  Road, and Priest River.

* WHEN...Through 11 AM PST this morning and again 1 AM to 11 AM PST 
  Friday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

WAZ036-037-120000-
/O.CON.KOTX.WC.Y.0002.210212T0900Z-210212T1900Z/
Spokane Area-Northeast Mountains-
Including the cities of Rockford, Spokane Valley, Chewelah,
Colville, Cheney, Northport, Flowery Trail Road, Fairfield,
Orin-Rice Road, Airway Heights, Newport, Deer Park,
Springdale-Hunters Road, Downtown Spokane, Davenport, and Kettle
Falls
216 AM PST Thu Feb 11 2021

...WIND CHILL ADVISORY REMAINS IN EFFECT FROM 1 AM TO 11 AM PST 
FRIDAY...

* WHAT...Very cold wind chills expected. Wind chills as low as 10 to 
  15 below zero.

* WHERE...Rockford, Spokane Valley, Chewelah, Colville, Cheney, 
  Northport, Flowery Trail Road, Fairfield, Orin-Rice Road, Airway 
  Heights, Newport, Deer Park, Springdale-Hunters Road, Downtown 
  Spokane, Davenport, and Kettle Falls.

* WHEN...From 1 AM to 11 AM PST Friday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

JW
281 
WWUS46 KOTX 111849
WSWOTX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Spokane WA
1049 AM PST Thu Feb 11 2021

IDZ001-002-WAZ043-120300-
/O.CAN.KOTX.WC.Y.0001.000000T0000Z-210211T1900Z/
/O.CON.KOTX.WC.Y.0002.210212T0900Z-210212T1900Z/
Northern Panhandle-Coeur d'Alene Area-Okanogan Valley-
Including the cities of Eastport, Okanogan, Sandpoint, Hayden,
Worley, Coeur d'Alene, Oroville, Omak, Bonners Ferry, Athol, Post
Falls, Nespelem, Brewster, Disautel Pass, Bridgeport, Schweitzer
Mountain Road, and Priest River
1049 AM PST Thu Feb 11 2021

...WIND CHILL ADVISORY REMAINS IN EFFECT FROM 1 AM TO 11 AM PST 
FRIDAY...


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

* WHERE...Eastport, Okanogan, Sandpoint, Hayden, Worley, Coeur 
  d'Alene, Oroville, Omak, Bonners Ferry, Athol, Post Falls, 
  Nespelem, Brewster, Disautel Pass, Bridgeport, Schweitzer Mountain 
  Road, and Priest River.

* WHEN...From 1 AM to 11 AM PST Friday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

IDZ027-120300-
/O.CON.KOTX.WW.Y.0011.210211T2100Z-210212T1800Z/
Lewis and Southern Nez Perce Counties-
Including the cities of Nezperce, Soldiers Meadow Road,
Craigmont, Winchester, and Kamiah
1049 AM PST Thu Feb 11 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST 
FRIDAY...

* WHAT...Snow expected. Total snow accumulations of 3 to 5 inches.

* WHERE...Nezperce, Soldiers Meadow Road, Craigmont, Winchester, and 
  Kamiah.

* WHEN...Until 10 AM PST Friday.

* IMPACTS...Plan on winter driving 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.

&&

$$

WAZ031-120300-
/O.CON.KOTX.WW.Y.0011.210211T2100Z-210213T0600Z/
Northeast Blue Mountains-
Including the cities of Mountain Road, Anatone, Peola, and
Cloverland Road
1049 AM PST Thu Feb 11 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 10 PM PST 
FRIDAY...

* WHAT...Snow expected. Total snow accumulations of 5 to 8 inches.

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

* WHEN...Until 10 PM PST Friday.

* IMPACTS...Plan on winter driving 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.

&&

$$

IDZ026-WAZ032-120300-
/O.CON.KOTX.WW.Y.0011.210212T0000Z-210212T1800Z/
Lewiston Area-Lower Garfield and Asotin Counties-
Including the cities of Lewiston, Clarkston, Pomeroy, Lewiston
Grade, Gifford, Lapwai, Alpowa Summit, Culdesac, and Peck
1049 AM PST Thu Feb 11 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 4 PM THIS 
AFTERNOON TO 10 AM PST FRIDAY...

* WHAT...Snow expected. Total snow accumulations of 2 to 4 inches.

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

* WHEN...From 4 PM this afternoon to 10 AM PST Friday.

* IMPACTS...Plan on winter driving conditions including the Thursday 
  evening and Friday morning 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.

&&

$$

WAZ036-037-120300-
/O.CON.KOTX.WC.Y.0002.210212T0900Z-210212T1900Z/
Spokane Area-Northeast Mountains-
Including the cities of Rockford, Spokane Valley, Chewelah,
Colville, Cheney, Northport, Flowery Trail Road, Fairfield,
Orin-Rice Road, Airway Heights, Newport, Deer Park,
Springdale-Hunters Road, Downtown Spokane, Davenport, and Kettle
Falls
1049 AM PST Thu Feb 11 2021

...WIND CHILL ADVISORY REMAINS IN EFFECT FROM 1 AM TO 11 AM PST 
FRIDAY...

* WHAT...Very cold wind chills expected. Wind chills as low as 10 to 
  15 below zero.

* WHERE...Rockford, Spokane Valley, Chewelah, Colville, Cheney, 
  Northport, Flowery Trail Road, Fairfield, Orin-Rice Road, Airway 
  Heights, Newport, Deer Park, Springdale-Hunters Road, Downtown 
  Spokane, Davenport, and Kettle Falls.

* WHEN...From 1 AM to 11 AM PST Friday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

Dewey

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 10, 2:33 PM PSTWind Chill AdvisoryOTXBenewah, Bonner, Boundary, Kootenai, Latah, Shoshone44 hr
Feb 10, 2:33 PM PSTWinter Weather AdvisoryOTXBenewah, Latah, Lewis, Nez Perce3 days

Nearby

Wind Chill Advisories in Idaho, 2021Wind Chill Advisories in Washington, 2021Every wind chill advisory 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.