Alert archive / Washington / Winter Weather Advisories in 2021

Winter Weather Advisory 4, NWS Spokane, WA

January 26, 202110 counties in Washington

NWS Spokane, WA issued this winter weather advisory at Jan 26, 2021, 1:18 AM PST for 10 counties in Washington. It took effect at Jan 26, 2021, 10:00 PM PST. It was in force for 17 hr.

The area

The counties it named.

The facts

Issued
Jan 26, 2021, 1:18 AM PST (09:18 UTC)
In effect from
Jan 26, 2021, 10:00 PM PST
Expired
Jan 27, 2021, 3:00 PM PST
In force
17 hr
Issued by
NWS Spokane, WA

Counties Adams County, WA, Chelan County, WA, Douglas County, WA, Ferry County, WA, Grant County, WA, Lincoln County, WA, Okanogan County, WA, Pend Oreille County, WA, Spokane County, WA, Stevens County, WA

The radar

The Spokane radar (KOTX), 88 km from the middle of the area, began a volume at 09:19 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, 9.3 hours before the alert went out and 177 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 2021-01-26Temperature 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°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Spokane, WA at 00:00Z on 2021-01-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 13 square meters per square second.1939Sfc1 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
726 m above ground
0-6 km bulk shear
26 kt
0-1 km storm-relative helicity
13 m²/s²
0-3 km storm-relative helicity
10 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

698 
WWUS46 KOTX 260918
WSWOTX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Spokane WA
118 AM PST Tue Jan 26 2021

...WIDESPREAD SNOW FOR NORTH CENTRAL WASHINGTON TUESDAY NIGHT 
SPREADING INTO NORTHEAST WASHINGTON WEDNESDAY ...

.Light snow is expected to develop in the Cascades by this evening 
before increasing and spreading north and east into Wednesday 
morning.  This will result in a winter driving conditions for the 
Wednesday morning commute.

WAZ034-270000-
/O.NEW.KOTX.WW.Y.0004.210127T0600Z-210127T2000Z/
Moses Lake Area-
Including the cities of Ephrata, Othello, Quincy, and Moses Lake
118 AM PST Tue Jan 26 2021

...WINTER WEATHER ADVISORY IN EFFECT FROM 10 PM THIS EVENING TO NOON 
PST WEDNESDAY...

* WHAT...Snow expected. Total snow accumulations of 1 to 3 inches 
  except local amounts to 4 inches possible near Quincy.

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

* WHEN...From 10 PM this evening to Noon PST Wednesday.

* IMPACTS...Plan on winter driving conditions including the 
  Wednesday 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.

&&

$$

WAZ041-042-044-270000-
/O.NEW.KOTX.WW.Y.0004.210127T0600Z-210127T2000Z/
Wenatchee Area-East Slopes Northern Cascades-Waterville Plateau-
Including the cities of Mazama, Winthrop, Number 1 Canyon, Badger
Mountain Road, Mansfield, Conconully, Plain, Leavenworth, Methow,
Holden Village, Cashmere, Waterville, Twisp, Loup Loup Pass,
Stehekin, Pangborn Airport, Chelan, Stevens Pass, Number
2 Canyon, Entiat, and Wenatchee
118 AM PST Tue Jan 26 2021

...WINTER WEATHER ADVISORY IN EFFECT FROM 10 PM THIS EVENING TO NOON 
PST WEDNESDAY...

* WHAT...Snow expected. Total snow accumulations of 3 to 6 inches.

* WHERE...Mazama, Winthrop, Mansfield, Conconully, Plain, 
  Leavenworth, Methow, Holden Village, Cashmere, Waterville, Twisp, 
  Loup Loup Pass, Stehekin, Pangborn Airport, Chelan, Stevens Pass, 
  Entiat, and Wenatchee.

* WHEN...From 10 PM this evening to Noon PST Wednesday.

* IMPACTS...Plan on winter driving conditions including the 
  Wednesday 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.

&&

$$

WAZ037-038-043-270000-
/O.NEW.KOTX.WW.Y.0004.210127T1200Z-210127T2300Z/
Northeast Mountains-Okanogan Highlands-Okanogan Valley-
Including the cities of Chewelah, Brewster, Boulder Creek Road,
Flowery Trail Road, Orin-Rice Road, Nespelem, Republic, Sherman
Pass, Highway 20 Wauconda Summit, Colville, Northport, Okanogan,
Springdale-Hunters Road, Kettle Falls, Wauconda, Bridgeport,
Omak, Chesaw Road, Newport, Disautel Pass, Oroville, Deer Park,
and Inchelium
118 AM PST Tue Jan 26 2021

...WINTER WEATHER ADVISORY IN EFFECT FROM 4 AM TO 3 PM PST 
WEDNESDAY...

* WHAT...Snow expected. Total snow accumulations of 2 to 3 inches. 
  Local amounts up to 4 inches possible.

* WHERE...Chewelah, Brewster, Boulder Creek Road, Flowery Trail 
  Road, Orin-Rice Road, Nespelem, Republic, Sherman Pass, Highway 20 
  Wauconda Summit, Colville, Northport, Okanogan, Springdale-Hunters 
  Road, Kettle Falls, Wauconda, Bridgeport, Omak, Chesaw Road, 
  Newport, Disautel Pass, Oroville, Deer Park, and Inchelium.

* WHEN...From 4 AM to 3 PM PST Wednesday.

* IMPACTS...Plan on winter driving conditions including the 
  Wednesday 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.

&&

$$

JW
7 follow-up statements
289 
WWUS46 KOTX 262034
WSWOTX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Spokane WA
1234 PM PST Tue Jan 26 2021

WAZ041-044-270845-
/O.UPG.KOTX.WW.Y.0004.210127T0600Z-210127T2000Z/
/O.NEW.KOTX.WS.W.0004.210127T0600Z-210127T1800Z/
Wenatchee Area-Waterville Plateau-
Including the cities of Number 1 Canyon, Waterville, Badger
Mountain Road, Cashmere, Mansfield, Pangborn Airport, Chelan,
Number 2 Canyon, Entiat, and Wenatchee
1234 PM PST Tue Jan 26 2021

...WINTER STORM WARNING IN EFFECT FROM 10 PM THIS EVENING TO 10 AM 
PST WEDNESDAY...

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

* WHERE...Number 1 Canyon, Waterville, Badger Mountain Road, 
  Cashmere, Mansfield, Pangborn Airport, Chelan, Number 2 Canyon, 
  Entiat, and Wenatchee.

* WHEN...From 10 PM this evening to 10 AM PST Wednesday.

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

&&

$$

WAZ043-270845-
/O.UPG.KOTX.WW.Y.0004.210127T1200Z-210127T2300Z/
/O.NEW.KOTX.WS.W.0004.210127T0600Z-210127T1800Z/
Okanogan Valley-
Including the cities of Disautel Pass, Brewster, Omak,
Bridgeport, Nespelem, Oroville, and Okanogan
1234 PM PST Tue Jan 26 2021

...WINTER STORM WARNING IN EFFECT FROM 10 PM THIS EVENING TO 10 AM 
PST WEDNESDAY...

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

* WHERE...Disautel Pass, Brewster, Omak, Bridgeport, Nespelem, 
  Oroville, and Okanogan.

* WHEN...From 10 PM this evening to 10 AM PST Wednesday.

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

&&

$$

WAZ034-270845-
/O.CON.KOTX.WW.Y.0004.210127T0600Z-210127T2000Z/
Moses Lake Area-
Including the cities of Ephrata, Othello, Quincy, and Moses Lake
1234 PM PST Tue Jan 26 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 10 PM THIS EVENING 
TO NOON PST WEDNESDAY...

* WHAT...Snow expected. Total snow accumulations of 1 to 3 inches.

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

* WHEN...From 10 PM this evening to Noon PST Wednesday.

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

&&

$$

WAZ042-270845-
/O.CON.KOTX.WW.Y.0004.210127T0600Z-210127T2000Z/
East Slopes Northern Cascades-
Including the cities of Winthrop, Plain, Leavenworth, Methow,
Holden Village, Twisp, Loup Loup Pass, Stehekin, Stevens Pass,
Conconully, and Mazama
1234 PM PST Tue Jan 26 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 10 PM THIS EVENING 
TO NOON PST WEDNESDAY...

* WHAT...Snow expected. Total snow accumulations of 3 to 6 inches.

* WHERE...Winthrop, Plain, Leavenworth, Methow, Holden Village, 
  Twisp, Loup Loup Pass, Stehekin, Stevens Pass, Conconully, and 
  Mazama.

* WHEN...From 10 PM this evening to Noon PST Wednesday.

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

&&

$$

WAZ037-038-270845-
/O.CON.KOTX.WW.Y.0004.210127T1200Z-210127T2300Z/
Northeast Mountains-Okanogan Highlands-
Including the cities of Chewelah, Wauconda, Boulder Creek Road,
Colville, Northport, Flowery Trail Road, Orin-Rice Road, Newport,
Chesaw Road, Inchelium, Deer Park, Springdale-Hunters Road,
Sherman Pass, Highway 20 Wauconda Summit, Republic, and Kettle
Falls
1234 PM PST Tue Jan 26 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 4 AM TO 3 PM PST 
WEDNESDAY...

* WHAT...Snow expected. Total snow accumulations of 1 to 3 inches.

* WHERE...Chewelah, Wauconda, Boulder Creek Road, Colville, 
  Northport, Flowery Trail Road, Orin-Rice Road, Newport, Chesaw 
  Road, Inchelium, Deer Park, Springdale-Hunters Road, Sherman Pass, 
  Highway 20 Wauconda Summit, Republic, and Kettle Falls.

* WHEN...From 4 AM to 3 PM PST Wednesday.

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

&&

$$

RP
006 
WWUS46 KOTX 270502
WSWOTX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Spokane WA
902 PM PST Tue Jan 26 2021

WAZ041-043-044-271315-
/O.EXT.KOTX.WS.W.0004.210127T0600Z-210127T2000Z/
Wenatchee Area-Okanogan Valley-Waterville Plateau-
Including the cities of Okanogan, Number 1 Canyon, Disautel Pass,
Brewster, Badger Mountain Road, Omak, Cashmere, Bridgeport,
Nespelem, Mansfield, Oroville, Waterville, Pangborn Airport,
Chelan, Number 2 Canyon, Entiat, and Wenatchee
902 PM PST Tue Jan 26 2021

...WINTER STORM WARNING NOW IN EFFECT UNTIL NOON PST WEDNESDAY...

* WHAT...Heavy snow expected. Total snow accumulations of 3 to 6 
  inches.

* WHERE...Okanogan, Number 1 Canyon, Disautel Pass, Brewster, Badger 
  Mountain Road, Omak, Cashmere, Bridgeport, Nespelem, Mansfield, 
  Oroville, Waterville, Pangborn Airport, Chelan, Number 2 Canyon, 
  Entiat, and Wenatchee.

* WHEN...Until Noon PST Wednesday.

* IMPACTS...Plan on winter driving conditions that will impact the 
  Wednesday 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.

&&

$$

WAZ035-271315-
/O.EXB.KOTX.WW.Y.0004.210127T1000Z-210127T2000Z/
Upper Columbia Basin-
Including the cities of Grand Coulee, Coulee City, Creston, and
Wilbur
902 PM PST Tue Jan 26 2021

...WINTER WEATHER ADVISORY IN EFFECT FROM 2 AM TO NOON PST WEDNESDAY 
FOR THE HIGHWAY 2 CORRIDOR ACROSS THE UPPER COLUMBIA BASIN...

* WHAT...Snow expected for the Highway 2 Corridor Across the Upper 
  Columbia Basin. Total snow accumulations of 2 to 4 inches.

* WHERE...Grand Coulee, Coulee City, Creston, and Wilbur.

* WHEN...From 2 AM to Noon PST Wednesday.

* IMPACTS...Plan on winter driving conditions that will impact the 
  Wednesday 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.

&&

$$

WAZ034-271315-
/O.CON.KOTX.WW.Y.0004.210127T0600Z-210127T2000Z/
Moses Lake Area-
Including the cities of Ephrata, Othello, Quincy, and Moses Lake
902 PM PST Tue Jan 26 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON PST 
WEDNESDAY...

* WHAT...Snow expected. Total snow accumulations of 1 to 3 inches. 
  Localized accumulations up to 4 inches.

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

* WHEN...Until Noon PST Wednesday.

* IMPACTS...Plan on winter driving conditions that will impact the 
  Wednesday morning commute.

* ADDITIONAL DETAILS...Amounts up to 4 inches will be possible 
  around Quincy.

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.

&&

$$

WAZ042-271315-
/O.CON.KOTX.WW.Y.0004.210127T0600Z-210127T2000Z/
East Slopes Northern Cascades-
Including the cities of Winthrop, Plain, Leavenworth, Methow,
Holden Village, Twisp, Loup Loup Pass, Stehekin, Stevens Pass,
Conconully, and Mazama
902 PM PST Tue Jan 26 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON PST 
WEDNESDAY...

* WHAT...Snow expected. Total snow accumulations of 3 to 6 inches.

* WHERE...Winthrop, Plain, Leavenworth, Methow, Holden Village, 
  Twisp, Loup Loup Pass, Stehekin, Stevens Pass, Conconully, and 
  Mazama.

* WHEN...Until Noon PST Wednesday.

* IMPACTS...Plan on winter driving conditions that will impact the 
  Wednesday 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.

&&

$$

WAZ037-038-271315-
/O.CON.KOTX.WW.Y.0004.210127T1200Z-210127T2300Z/
Northeast Mountains-Okanogan Highlands-
Including the cities of Chewelah, Wauconda, Boulder Creek Road,
Colville, Northport, Flowery Trail Road, Orin-Rice Road, Newport,
Chesaw Road, Inchelium, Deer Park, Springdale-Hunters Road,
Sherman Pass, Highway 20 Wauconda Summit, Republic, and Kettle
Falls
902 PM PST Tue Jan 26 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 4 AM TO 3 PM PST 
WEDNESDAY...

* WHAT...Snow expected. Total snow accumulations of 2 to 4 inches. 
  Mountain snow accumulations of 4 to 6 inches.

* WHERE...Chewelah, Wauconda, Boulder Creek Road, Colville, 
  Northport, Flowery Trail Road, Orin-Rice Road, Newport, Chesaw 
  Road, Inchelium, Deer Park, Springdale-Hunters Road, Sherman Pass, 
  Highway 20 Wauconda Summit, Republic, and Kettle Falls.

* WHEN...From 4 AM to 3 PM PST Wednesday.

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

&&

$$

GKOCH
662 
WWUS46 KOTX 271214
WSWOTX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Spokane WA
414 AM PST Wed Jan 27 2021

WAZ041-043-044-272000-
/O.CON.KOTX.WS.W.0004.000000T0000Z-210127T2000Z/
Wenatchee Area-Okanogan Valley-Waterville Plateau-
Including the cities of Okanogan, Number 1 Canyon, Disautel Pass,
Brewster, Badger Mountain Road, Omak, Cashmere, Bridgeport,
Nespelem, Mansfield, Oroville, Waterville, Pangborn Airport,
Chelan, Number 2 Canyon, Entiat, and Wenatchee
414 AM PST Wed Jan 27 2021

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL NOON PST TODAY...

* WHAT...Heavy snow. Storm total snow accumulation 3 to 6 inches.

* WHERE...Okanogan, Number 1 Canyon, Disautel Pass, Brewster, Badger 
  Mountain Road, Omak, Cashmere, Bridgeport, Nespelem, Mansfield, 
  Oroville, Waterville, Pangborn Airport, Chelan, Number 2 Canyon, 
  Entiat, and Wenatchee.

* WHEN...Until Noon PST today.

* IMPACTS...Plan on winter driving conditions that will impact the 
  Wednesday 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.

&&

$$

WAZ034-272000-
/O.CON.KOTX.WW.Y.0004.000000T0000Z-210127T2000Z/
Moses Lake Area-
Including the cities of Ephrata, Othello, Quincy, and Moses Lake
414 AM PST Wed Jan 27 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON PST TODAY...

* WHAT...Snow. Storm total snow accumulation 1 to 3 inches with 
  localized accumulations up to 4 inches.

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

* WHEN...Until Noon PST today.

* IMPACTS...Plan on winter driving conditions that will impact the 
  Wednesday morning commute.

* ADDITIONAL DETAILS...Amounts up to 4 inches will be possible 
  around Quincy.

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.

&&

$$

WAZ035-272000-
/O.CON.KOTX.WW.Y.0004.000000T0000Z-210127T2000Z/
Upper Columbia Basin-
Including the cities of Grand Coulee, Coulee City, Creston, and
Wilbur
414 AM PST Wed Jan 27 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON PST TODAY 
FOR THE HIGHWAY 2 CORRIDOR ACROSS THE UPPER COLUMBIA BASIN...

* WHAT...Snow for the Highway 2 Corridor Across the Upper Columbia 
  Basin. Storm total snow accumulation of 2 to 4 inches.

* WHERE...Grand Coulee, Coulee City, Creston, and Wilbur.

* WHEN...Until Noon PST today.

* IMPACTS...Plan on winter driving conditions that will impact the 
  Wednesday 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.

&&

$$

WAZ037-038-272015-
/O.CON.KOTX.WW.Y.0004.000000T0000Z-210127T2300Z/
Northeast Mountains-Okanogan Highlands-
Including the cities of Chewelah, Wauconda, Boulder Creek Road,
Colville, Northport, Flowery Trail Road, Orin-Rice Road, Newport,
Chesaw Road, Inchelium, Deer Park, Springdale-Hunters Road,
Sherman Pass, Highway 20 Wauconda Summit, Republic, and Kettle
Falls
414 AM PST Wed Jan 27 2021

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

* WHAT...Snow. Snow accumulations of 2 to 4 inches.  Mountain snow 
  accumulations of 4 to 6 inches.

* WHERE...Chewelah, Wauconda, Boulder Creek Road, Colville, 
  Northport, Flowery Trail Road, Orin-Rice Road, Newport, Chesaw 
  Road, Inchelium, Deer Park, Springdale-Hunters Road, Sherman Pass, 
  Highway 20 Wauconda Summit, Republic, and Kettle Falls.

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

* IMPACTS...Plan on winter driving conditions including the 
  Wednesday 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.

&&

$$

WAZ042-272000-
/O.CON.KOTX.WW.Y.0004.000000T0000Z-210127T2000Z/
East Slopes Northern Cascades-
Including the cities of Winthrop, Plain, Leavenworth, Methow,
Holden Village, Twisp, Loup Loup Pass, Stehekin, Stevens Pass,
Conconully, and Mazama
414 AM PST Wed Jan 27 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON PST TODAY...

* WHAT...Snow. Storm total snow accumulation of 3 to 6 inches.

* WHERE...Winthrop, Plain, Leavenworth, Methow, Holden Village, 
  Twisp, Loup Loup Pass, Stehekin, Stevens Pass, Conconully, and 
  Mazama.

* WHEN...Until Noon PST today.

* IMPACTS...Plan on winter driving conditions that will impact the 
  Wednesday 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.

&&

$$

JW
431 
WWUS46 KOTX 271828
WSWOTX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Spokane WA
1028 AM PST Wed Jan 27 2021

WAZ034-271930-
/O.CAN.KOTX.WW.Y.0004.000000T0000Z-210127T2000Z/
Moses Lake Area-
Including the cities of Ephrata, Othello, Quincy, and Moses Lake
1028 AM PST Wed Jan 27 2021

...WINTER WEATHER ADVISORY IS CANCELLED...

Snow has ended or decreased substantially in intensity, therefore 
the winter weather advisory has been cancelled.

$$

WAZ041-043-044-272000-
/O.CON.KOTX.WS.W.0004.000000T0000Z-210127T2000Z/
Wenatchee Area-Okanogan Valley-Waterville Plateau-
Including the cities of Okanogan, Number 1 Canyon, Disautel Pass,
Brewster, Badger Mountain Road, Omak, Cashmere, Bridgeport,
Nespelem, Mansfield, Oroville, Waterville, Pangborn Airport,
Chelan, Number 2 Canyon, Entiat, and Wenatchee
1028 AM PST Wed Jan 27 2021

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL NOON PST TODAY...

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

* WHERE...Okanogan, Number 1 Canyon, Disautel Pass, Brewster, Badger 
  Mountain Road, Omak, Cashmere, Bridgeport, Nespelem, Mansfield, 
  Oroville, Waterville, Pangborn Airport, Chelan, Number 2 Canyon, 
  Entiat, and Wenatchee.

* WHEN...Until Noon PST today.

* 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.

&&

$$

WAZ035-272000-
/O.CON.KOTX.WW.Y.0004.000000T0000Z-210127T2000Z/
Upper Columbia Basin-
Including the cities of Grand Coulee, Coulee City, Creston, and
Wilbur
1028 AM PST Wed Jan 27 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON PST TODAY 
FOR THE HIGHWAY 2 CORRIDOR ACROSS THE UPPER COLUMBIA BASIN...

* WHAT...Snow for the Highway 2 Corridor Across the Upper Columbia 
  Basin. Additional snow accumulations of up to one inch.

* WHERE...Grand Coulee, Coulee City, Creston, and Wilbur.

* WHEN...Until Noon PST today.

* 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.

&&

$$

WAZ037-038-272300-
/O.CON.KOTX.WW.Y.0004.000000T0000Z-210127T2300Z/
Northeast Mountains-Okanogan Highlands-
Including the cities of Chewelah, Wauconda, Boulder Creek Road,
Colville, Northport, Flowery Trail Road, Orin-Rice Road, Newport,
Chesaw Road, Inchelium, Deer Park, Springdale-Hunters Road,
Sherman Pass, Highway 20 Wauconda Summit, Republic, and Kettle
Falls
1028 AM PST Wed Jan 27 2021

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

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

* WHERE...Chewelah, Wauconda, Boulder Creek Road, Colville, 
  Northport, Flowery Trail Road, Orin-Rice Road, Newport, Chesaw 
  Road, Inchelium, Deer Park, Springdale-Hunters Road, Sherman Pass, 
  Highway 20 Wauconda Summit, Republic, and Kettle Falls.

* 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.

&&

$$

WAZ042-272000-
/O.CON.KOTX.WW.Y.0004.000000T0000Z-210127T2000Z/
East Slopes Northern Cascades-
Including the cities of Winthrop, Plain, Leavenworth, Methow,
Holden Village, Twisp, Loup Loup Pass, Stehekin, Stevens Pass,
Conconully, and Mazama
1028 AM PST Wed Jan 27 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON PST TODAY...

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

* WHERE...Winthrop, Plain, Leavenworth, Methow, Holden Village, 
  Twisp, Loup Loup Pass, Stehekin, Stevens Pass, Conconully, and 
  Mazama.

* WHEN...Until Noon PST today.

* 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.

&&

$$

RP
851 
WWUS46 KOTX 271846
WSWOTX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Spokane WA
1046 AM PST Wed Jan 27 2021

WAZ041-044-272000-
/O.CAN.KOTX.WS.W.0004.000000T0000Z-210127T2000Z/
Wenatchee Area-Waterville Plateau-
1046 AM PST Wed Jan 27 2021

...WINTER STORM WARNING IS CANCELLED...

Snow has ended or decreased substantially in intensity, therefore 
the winter weather advisory has been cancelled.

$$

WAZ043-272000-
/O.CON.KOTX.WS.W.0004.000000T0000Z-210127T2000Z/
Okanogan Valley-
Including the cities of Disautel Pass, Brewster, Omak,
Bridgeport, Nespelem, Oroville, and Okanogan
1046 AM PST Wed Jan 27 2021

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL NOON PST TODAY...

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

* WHERE...Disautel Pass, Brewster, Omak, Bridgeport, Nespelem, 
  Oroville, and Okanogan.

* WHEN...Until Noon PST today.

* 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.

&&

$$

WAZ035-272000-
/O.CON.KOTX.WW.Y.0004.000000T0000Z-210127T2000Z/
Upper Columbia Basin-
Including the cities of Grand Coulee, Coulee City, Creston, and
Wilbur
1046 AM PST Wed Jan 27 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON PST TODAY 
FOR THE HIGHWAY 2 CORRIDOR ACROSS THE UPPER COLUMBIA BASIN...

* WHAT...Snow for the Highway 2 Corridor Across the Upper Columbia 
  Basin. Additional snow accumulations of up to one inch.

* WHERE...Grand Coulee, Coulee City, Creston, and Wilbur.

* WHEN...Until Noon PST today.

* 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.

&&

$$

WAZ037-038-272300-
/O.CON.KOTX.WW.Y.0004.000000T0000Z-210127T2300Z/
Northeast Mountains-Okanogan Highlands-
Including the cities of Chewelah, Wauconda, Boulder Creek Road,
Colville, Northport, Flowery Trail Road, Orin-Rice Road, Newport,
Chesaw Road, Inchelium, Deer Park, Springdale-Hunters Road,
Sherman Pass, Highway 20 Wauconda Summit, Republic, and Kettle
Falls
1046 AM PST Wed Jan 27 2021

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

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

* WHERE...Chewelah, Wauconda, Boulder Creek Road, Colville, 
  Northport, Flowery Trail Road, Orin-Rice Road, Newport, Chesaw 
  Road, Inchelium, Deer Park, Springdale-Hunters Road, Sherman Pass, 
  Highway 20 Wauconda Summit, Republic, and Kettle Falls.

* 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.

&&

$$

WAZ042-272000-
/O.CON.KOTX.WW.Y.0004.000000T0000Z-210127T2000Z/
East Slopes Northern Cascades-
Including the cities of Winthrop, Plain, Leavenworth, Methow,
Holden Village, Twisp, Loup Loup Pass, Stehekin, Stevens Pass,
Conconully, and Mazama
1046 AM PST Wed Jan 27 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON PST TODAY...

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

* WHERE...Winthrop, Plain, Leavenworth, Methow, Holden Village, 
  Twisp, Loup Loup Pass, Stehekin, Stevens Pass, Conconully, and 
  Mazama.

* WHEN...Until Noon PST today.

* 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.

&&

$$

RP
109 
WWUS46 KOTX 271948
WSWOTX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Spokane WA
1148 AM PST Wed Jan 27 2021

WAZ043-272100-
/O.EXP.KOTX.WS.W.0004.000000T0000Z-210127T2000Z/
Okanogan Valley-
Including the cities of Disautel Pass, Brewster, Omak,
Bridgeport, Nespelem, Oroville, and Okanogan
1148 AM PST Wed Jan 27 2021

...WINTER STORM WARNING WILL EXPIRE AT NOON PST TODAY...

Snow has decreased substantially in intensity, therefore the winter 
storm warning has been allowed to expire.

$$

WAZ035-042-272100-
/O.EXP.KOTX.WW.Y.0004.000000T0000Z-210127T2000Z/
Upper Columbia Basin-East Slopes Northern Cascades-
Including the cities of Grand Coulee, Coulee City, Winthrop,
Wilbur, Plain, Leavenworth, Methow, Holden Village, Creston,
Twisp, Loup Loup Pass, Stehekin, Stevens Pass, Conconully, and
Mazama
1148 AM PST Wed Jan 27 2021

...WINTER WEATHER ADVISORY WILL EXPIRE AT NOON PST TODAY...

Snow has ended or decreased substantially in intensity, therefore 
the winter weather advisory has been allowed to expire.

$$

WAZ037-038-272300-
/O.CON.KOTX.WW.Y.0004.000000T0000Z-210127T2300Z/
Northeast Mountains-Okanogan Highlands-
Including the cities of Chewelah, Wauconda, Boulder Creek Road,
Colville, Northport, Flowery Trail Road, Orin-Rice Road, Newport,
Chesaw Road, Inchelium, Deer Park, Springdale-Hunters Road,
Sherman Pass, Highway 20 Wauconda Summit, Republic, and Kettle
Falls
1148 AM PST Wed Jan 27 2021

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

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

* WHERE...Chewelah, Wauconda, Boulder Creek Road, Colville, 
  Northport, Flowery Trail Road, Orin-Rice Road, Newport, Chesaw 
  Road, Inchelium, Deer Park, Springdale-Hunters Road, Sherman Pass, 
  Highway 20 Wauconda Summit, Republic, and Kettle Falls.

* 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.

&&

$$

RP
840 
WWUS46 KOTX 272248
WSWOTX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Spokane WA
248 PM PST Wed Jan 27 2021

WAZ037-038-280000-
/O.EXP.KOTX.WW.Y.0004.000000T0000Z-210127T2300Z/
Northeast Mountains-Okanogan Highlands-
Including the cities of Chewelah, Wauconda, Boulder Creek Road,
Colville, Northport, Flowery Trail Road, Orin-Rice Road, Newport,
Chesaw Road, Inchelium, Deer Park, Springdale-Hunters Road,
Sherman Pass, Highway 20 Wauconda Summit, Republic, and Kettle
Falls
248 PM PST Wed Jan 27 2021

...WINTER WEATHER ADVISORY WILL EXPIRE AT 3 PM PST THIS AFTERNOON...

Snow has decreased substantially in intensity, therefore the winter 
weather advisory has been allowed to expire.

$$

WAZ043-280800-
/O.NEW.KOTX.WW.Y.0005.210128T0500Z-210128T1700Z/
Okanogan Valley-
Including the cities of Disautel Pass, Brewster, Omak,
Bridgeport, Nespelem, Oroville, and Okanogan
248 PM PST Wed Jan 27 2021

...WINTER WEATHER ADVISORY IN EFFECT FROM 9 PM THIS EVENING TO 9 AM 
PST THURSDAY OKANOGAN VALLEY...

* WHAT...Snow expected. Total snow accumulations of two to three 
  inches.

* WHERE...Disautel Pass, Brewster, Omak, Bridgeport, Nespelem, 
  Oroville, and Okanogan.

* WHEN...From 9 PM this evening to 9 AM 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.

&&

$$

RP

What forecasters said that day

The local office's own words before this winter weather advisory went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Spokane, WA wrote its last area forecast discussion before this winter weather advisory went out at Jan 25, 9:59 PM PST, 3 hours 19 minutes earlier.

Area forecast discussion, Jan 25, 9:59 PM PST, 3 hours 19 minutes before
Area Forecast Discussion
National Weather Service Spokane WA
959 PM PST Mon Jan 25 2021

.SYNOPSIS...
Areas of light snow will continue into the early evening hours over
far Eastern Washington and north Idaho tonight. Additional rounds
of snow are expected this week beginning Tuesday night. This mid-
week event will likely impact travel at times, especially over
Central and Northeast Washington into the Idaho Panhandle.

&&

.DISCUSSION...

Tonight and Tuesday: Light dusty snow continues to drift across
eastern WA and parts of the Idaho Panhandle. This will continue
into the early evening hours and the move northward into Canada.
Overnight into Tuesday, the elongated trough moves further inland,
but with limited moisture. Tomorrow, dry conditions are favored
with light winds. There will be a relatively moist boundary layer
and, with light winds, will keep the region wide stratus in place
through the day. With this cloud deck and limited warming today,
tonight's lows will be cool and below normal with the trough in
place. Tuesday's highs will be below seasonal and only reaching
temperatures in the upper 20s and low 30s regionwide.

Tuesday night through Wednesday: As the low continues to churn off
the northwest coast, the active weather returns Tuesday night with
the arrival of a shortwave trough and cold, wet conditions make
their way inland. The mid-week event's arrival and precipitation
intensity continue to remain relatively persistent across model
runs. Snowfall will be the main concern with this event. Winds
will be light and Tuesday night may be breezy in the Basin and
Cascade slopes, but only reach peak gusts to 15-20KTs.

Snow levels will remain low keeping all precipitation snow, except
for the Lewiston area and lower Basin which may receive a rain-snow
mix depending on time of day. Snow will arrive overnight Tuesday
moving in from the southwest. Initial impact will be in the Cascades
and slowly becoming widespread on Wednesday. Models continue to
produce the greatest snowfall in the Waterville Plateau, Okanogan
Highlands, and Eastern Cascade slopes. 24 hour snow amounts may
reach 4-6" across those areas, in locations such as Wenatchee,
Waterville, and lower Methow Valley. The Spokane-Coeur d'Alene
corridor, throughout the upper Basin, and into northeastern WA,
snow from 1-3" is possible in the low lands and higher elevations
may see up to 4-6" in 24 hours. We will need to look further into
issuing winter weather advisories across part of the Inland NW.
This is due to the significant snowfall, in only 24 hours, for
some of these locations. The Wednesday morning commute will need
to be approached with caution due to the snow depth in the morning
and ongoing snowfall during the day. JS

Wednesday night through Friday: Lingering light snow, mainly in
the mountains. Friday's snow will be more centered over the
Panhandle. Less than an inch of additional snowfall is expected in
the valleys. Temperatures could be warm enough for the lowlands
to mix in with or transition to rain by the afternoons.

Saturday and Sunday: This weekend into early next week looks to
bring additional chances of moderate to possibly heavy mountain
snow. Much of the lowland snow accumulations will probably be too
warm for significant snow accumulations and instead receive rain
or a mix, but this forecast may change. Valleys north of the metro
may stay cold enough for significant snow. RC

&&

.AVIATION...
06Z TAFs: Widespread stratus expected tonight due to light winds
and continued moisture in the boundary layer. CIGS and visibilities
have improved over the Basin and eastern slopes, but there may be
some patchy fog in the early morning hours. IFR to marginal VFR
expected through most of the period for stratus induced ceilings.
Clearing expected by the end of the TAF period before another
shortwave is exepcted to bring another round of snow to the
region starting with EAT late Tuesday. /JDC

&&

.PRELIMINARY POINT TEMPS/POPS...
Spokane        23  32  25  35  28  37 /  10  10  10  50  30  30
Coeur d'Alene  22  33  23  34  28  38 /  10  10   0  30  40  30
Pullman        23  34  27  36  30  40 /  10  10  10  30  30  20
Lewiston       27  38  30  43  33  45 /  10  10  10  20  20  10
Colville       21  32  21  33  25  36 /  20  10  10  50  40  40
Sandpoint      22  31  22  30  28  36 /  10  10   0  70  50  50
Kellogg        21  31  24  33  30  39 /  30  10   0  60  40  30
Moses Lake     24  35  28  38  27  38 /  10  10  30  60  20  20
Wenatchee      21  30  27  33  26  35 /  10  10  60  60  20  20
Omak           22  30  27  34  29  36 /  10  10  20  60  30  30

&&

.OTX WATCHES/WARNINGS/ADVISORIES...
ID...None.
WA...None.

&&
Hazardous weather outlook, Jan 25, 4:42 AM PST, 20 hours 36 minutes before
Hazardous Weather Outlook
National Weather Service Spokane WA
442 AM PST Mon Jan 25 2021

IDZ003-004-026-027-WAZ031>033-261245-
Idaho Palouse-Central Panhandle Mountains-Lewiston Area-
Lewis and Southern Nez Perce Counties-Northeast Blue Mountains-
Lower Garfield and Asotin Counties-Washington Palouse-
442 AM PST Mon Jan 25 2021

This Hazardous Weather Outlook is for portions of North Idaho...
North Central Idaho and Southeast Washington.

.DAY ONE...TODAY AND TONIGHT

No hazardous weather is expected at this time.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY

No hazardous weather is expected at this time.

IDZ001-002-WAZ034>038-041>044-261245-
Northern Panhandle-Coeur d'Alene Area-Moses Lake Area-
Upper Columbia Basin-Spokane Area-Northeast Mountains-
Okanogan Highlands-Wenatchee Area-East Slopes Northern Cascades-
Okanogan Valley-Waterville Plateau-
442 AM PST Mon Jan 25 2021

This Hazardous Weather Outlook is for portions of North Idaho...
Central Washington...East Central Washington...North Central
Washington and Northeast Washington.

.DAY ONE...TODAY AND TONIGHT

No hazardous weather is expected at this time.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY
Another storm system arrives Tuesday night into Wednesday. This
storm will have the potential to bring heavier snow amounts on the
order of two to five inches. Winter travel conditions will be
possible during the Wednesday morning commute. Another round of
snow is possible on or around Friday.

The office that day

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

IssuedProductOfficeCountiesLasted
Jan 26, 12:34 PM PSTWinter Storm WarningOTXChelan, Douglas, Grant, Okanogan23 hr

Nearby

Winter Weather Advisories in Washington, 2021Every winter weather 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.