Alert archive / Washington / Winter Storm Warnings in 2021

Winter Storm Warning 2, NWS Seattle, WA

January 3, 2021

NWS Seattle, WA issued this winter storm warning at Jan 3, 2021, 12:37 PM PST. It took effect at Jan 3, 2021, 10:00 PM PST. It was in force for 28 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Jan 3, 2021, 12:37 PM PST (20:37 UTC)
In effect from: Jan 3, 2021, 10:00 PM PST
Expired: Jan 5, 2021, 2:00 AM PST
In force: 28 hr
Issued by: NWS Seattle, WA

The text

As transmitted.

016 
WWUS46 KSEW 032037
WSWSEW

URGENT - WINTER WEATHER MESSAGE
National Weather Service Seattle WA
1237 PM PST Sun Jan 3 2021

WAZ567-041200-
/O.UPG.KSEW.WS.A.0001.210104T0600Z-210105T0600Z/
/O.NEW.KSEW.WS.W.0002.210104T0600Z-210105T0800Z/
Cascades of Whatcom and Skagit Counties-
1237 PM PST Sun Jan 3 2021

...WINTER STORM WARNING IN EFFECT FROM 10 PM THIS EVENING TO
MIDNIGHT PST MONDAY NIGHT ABOVE 3000 FEET...

* WHAT...Heavy snow expected above 3000 feet. Total snow
  accumulations of 1 to 2 feet.

* WHERE...Cascade mountains and valleys of Whatcom and Skagit
  Counties, including the Mount Baker Ski Area.

* WHEN...From 10 PM this evening to midnight PST Monday night.

* IMPACTS...Motorists should expect and be prepared for winter
  driving conditions. Travel could be difficult.

* ADDITIONAL DETAILS...Heaviest snow is expected Monday morning,
  with additional snow showers in the afternoon.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

For the latest road conditions in Washington state, call 5 1 1.

&&

$$

WAZ568-041200-
/O.UPG.KSEW.WS.A.0001.210104T0300Z-210105T0600Z/
/O.NEW.KSEW.WS.W.0002.210104T0600Z-210105T0800Z/
Cascades of Snohomish and King Counties-
including Stevens Pass and Snoqualmie Pass
1237 PM PST Sun Jan 3 2021

...WINTER STORM WARNING IN EFFECT FROM 10 PM THIS EVENING TO
MIDNIGHT PST MONDAY NIGHT ABOVE 3000 FEET...

* WHAT...Heavy snow expected above 3000 feet. Total snow
  accumulations of 8 to 18 inches. Highest amounts will be above
  4,000 feet.

* WHERE...Cascade mountains and valleys of Snohomish and King
  Counties, including Stevens Pass and Snoqualmie Pass.

* WHEN...From 10 PM this evening to midnight PST Monday night.

* IMPACTS...Motorists should expect and be prepared for winter
  driving conditions. Travel could be difficult.

* ADDITIONAL DETAILS...Heaviest snow is expected Monday morning,
  with additional snow showers in the afternoon. A convergence
  zone may develop and bring localized heavier snow Monday
  afternoon.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

For the latest road conditions in Washington state, call 5 1 1.

&&

$$

WAZ569-041200-
/O.UPG.KSEW.WS.A.0001.210104T0300Z-210105T0600Z/
/O.NEW.KSEW.WS.W.0002.210104T0600Z-210105T0800Z/
Cascades of Pierce and Lewis Counties-
including Paradise
1237 PM PST Sun Jan 3 2021

...WINTER STORM WARNING IN EFFECT FROM 10 PM THIS EVENING TO
MIDNIGHT PST MONDAY NIGHT ABOVE 3500 FEET...

* WHAT...Heavy snow expected above 3500 feet. Total snow
  accumulations of 8 to 25 inches. Winds gusting as high as 40 
  mph.

* WHERE...Cascade mountains and valleys of Pierce and Lewis
  Counties, including the Crystal Mountain Ski Area and Paradise 
  on Mount Rainier.

* WHEN...From 10 PM this evening to midnight PST Monday night.

* IMPACTS...Motorists should expect and be prepared for winter
  driving conditions. Travel could be difficult.

* ADDITIONAL DETAILS...Heaviest snow is expected Monday morning,
  with additional snow showers in the afternoon.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

For the latest road conditions in Washington state, call 5 1 1.

&&

$$

www.weather.gov/seattle

3 follow-up statements

517 
WWUS46 KSEW 041110
WSWSEW

URGENT - WINTER WEATHER MESSAGE
National Weather Service Seattle WA
310 AM PST Mon Jan 4 2021

WAZ567-568-050000-
/O.CON.KSEW.WS.W.0002.000000T0000Z-210105T0800Z/
Cascades of Whatcom and Skagit Counties-
Cascades of Snohomish and King Counties-
including Stevens Pass and Snoqualmie Pass
310 AM PST Mon Jan 4 2021

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT PST
TONIGHT ABOVE 3000 FEET...

* WHAT...Heavy snow continued above 3000 feet. Additional snow
  accumulations of 5 o 15 inches.

* WHERE...Cascade mountains and valleys of Whatcom and Skagit 
  Counties, including Maple Falls, the Mount Baker Ski Area, 
  Newhalem, Lyman, and Concrete and Cascade mountains and 
  valleys of Snohomish and King Counties, including Darrington, 
  Index, Skykomish, Stevens Pass, and Snoqualmie Pass.

* WHEN...Until midnight PST tonight.

* IMPACTS...Motorists should expect and be prepared for winter
  driving conditions. Travel could be difficult.

* ADDITIONAL DETAILS...Heaviest snow is expected this morning, 
  with additional snow showers in the afternoon


PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

For the latest road conditions in Washington state, call 5 1 1.

&&

$$

WAZ569-050000-
/O.CON.KSEW.WS.W.0002.000000T0000Z-210105T0800Z/
Cascades of Pierce and Lewis Counties-
including Paradise
310 AM PST Mon Jan 4 2021

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT PST
TONIGHT ABOVE 3500 FEET...

* WHAT...Heavy snow continued above 3500 feet. Additional snow
  accumulations of 10 to 15 inches. Winds gusting as high as 40 
  mph.

* WHERE...Cascade mountains and valleys of Pierce and Lewis 
  Counties, including the Crystal Mountain Ski Area, Paradise on 
  Mount Rainier, Ashford, Randle, and Packwood.

* WHEN...Until midnight PST tonight.

* IMPACTS...Motorists should expect and be prepared for winter
  driving conditions. Travel could be difficult.

* ADDITIONAL DETAILS...Heaviest snow is expected this morning, 
  with additional snow showers in the afternoon.



PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

For the latest road conditions in Washington state, call 5 1 1.

&&

$$

www.weather.gov/seattle

208 
WWUS46 KSEW 042339
WSWSEW

URGENT - WINTER WEATHER MESSAGE
National Weather Service Seattle WA
339 PM PST Mon Jan 4 2021

WAZ567-568-050800-
/O.CON.KSEW.WS.W.0002.000000T0000Z-210105T0800Z/
Cascades of Whatcom and Skagit Counties-
Cascades of Snohomish and King Counties-
including Stevens Pass and Snoqualmie Pass
339 PM PST Mon Jan 4 2021

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT PST
TONIGHT ABOVE 3000 FEET...

* WHAT...Snow continued above 3000 feet. Additional snow 
  accumulations of 1 to 4 inches.

* WHERE...Cascade mountains and valleys of Whatcom and Skagit
  Counties including the Mount Baker Ski Area, and Cascade
  mountains and valleys of Snohomish and King Counties, including
  Stevens Pass and Snoqualmie Pass.

* WHEN...Until midnight PST tonight.

* IMPACTS...Motorists should expect and be prepared for winter
  driving conditions. Travel could be difficult.

* ADDITIONAL DETAILS...Snow will gradually come to an end late
  this evening or early overnight.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

For the latest road conditions in Washington state, call 5 1 1.

&&

$$

WAZ569-050800-
/O.CON.KSEW.WS.W.0002.000000T0000Z-210105T0800Z/
Cascades of Pierce and Lewis Counties-
including Paradise
339 PM PST Mon Jan 4 2021

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT PST
TONIGHT ABOVE 3500 FEET...

* WHAT...Heavy snow continued above 3500 feet. Additional snow 
  accumulations of 1 to 4 inches.

* WHERE...Cascade mountains and valleys of Pierce and Lewis
  Counties, including the Crystal Mountain Ski Area and Paradise
  on Mount Rainier.

* WHEN...Until midnight PST tonight.

* IMPACTS...Motorists should expect and be prepared for winter
  driving conditions through evening. Travel could be difficult.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

For the latest road conditions in Washington state, call 5 1 1.

&&

$$

www.weather.gov/seattle

678 
WWUS46 KSEW 050746
WSWSEW

URGENT - WINTER WEATHER MESSAGE
National Weather Service Seattle WA
1146 PM PST Mon Jan 4 2021

WAZ567-050900-
/O.EXP.KSEW.WS.W.0002.000000T0000Z-210105T0800Z/
Cascades of Whatcom and Skagit Counties-
1146 PM PST Mon Jan 4 2021

...WINTER STORM WARNING WILL EXPIRE AT MIDNIGHT PST TONIGHT ABOVE
3000 FEET...

The heaviest snowfall has ended. A few snow showers may linger
overnight with little to no additional accumulation expected
tonight.

$$

WAZ569-050900-
/O.EXP.KSEW.WS.W.0002.000000T0000Z-210105T0800Z/
Cascades of Pierce and Lewis Counties-
including Paradise
1146 PM PST Mon Jan 4 2021

...WINTER STORM WARNING WILL EXPIRE AT MIDNIGHT PST TONIGHT ABOVE
3500 FEET...

The heaviest snowfall has ended. A few snow showers may linger
overnight with little to no additional accumulation expected
tonight.

$$

WAZ568-051000-
/O.EXT.KSEW.WS.W.0002.000000T0000Z-210105T1000Z/
Cascades of Snohomish and King Counties-
including Stevens Pass and Snoqualmie Pass
1146 PM PST Mon Jan 4 2021

...WINTER STORM WARNING NOW IN EFFECT UNTIL 2 AM PST TUESDAY
ABOVE 3000 FEET...

* WHAT...Locally heavy snow continued above 3000 feet. Additional
  snow accumulations of up to one inch.

* WHERE...Cascade mountains and valleys of Snohomish and King 
  Counties, including Darrington, Index, Skykomish, Stevens 
  Pass, and Snoqualmie Pass.

* WHEN...Until 2 AM PST Tuesday.

* IMPACTS...Motorists should expect and be prepared for winter
  driving conditions. Travel could be difficult.

* ADDITIONAL DETAILS...An area of convergence will provide a focus
  for continued snowfall, locally moderate to heavy at times, 
  over the next several hours. This is expected to impact the 
  Passes. Snow will gradually end through the early morning hours.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

For the latest road conditions in Washington state, call 5 1 1.

&&

$$

www.weather.gov/seattle

The office that day

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

Issued	Product	Office	Counties	Lasted
Jan 2, 5:17 PM PST	River Flood Warning	SEW	Clallam	11 hr
Jan 2, 8:00 PM PST	River Flood Warning	SEW	Grays Harbor	26 hr
Jan 2, 8:48 PM PST	Areal Flood Warning	SEW	Grays Harbor, Island, Jefferson, King, Kitsap, Mason and 3 more	56 min
Jan 2, 9:40 PM PST	Areal Flood Advisory	SEW	Island, King, Kitsap, Mason, Pierce, Snohomish	2 hr
Jan 2, 11:41 PM PST	Areal Flood Advisory	SEW	King, Lewis, Pierce, Snohomish, Thurston	2 hr
Jan 3, 12:42 AM PST	River Flood Warning	SEW	Lewis	5 hr
Jan 3, 3:06 AM PST	Gale Watch	SEW		11 hr
Jan 3, 3:06 AM PST	Small Craft Advisory	SEW		51 hr
Jan 3, 3:21 AM PST	River Flood Warning	SEW	Lewis	18 hr
Jan 3, 4:31 AM PST	River Flood Warning	SEW	Thurston	35 hr
Jan 3, 6:16 AM PST	River Flood Warning	SEW	Grays Harbor, Thurston	4 days
Jan 3, 6:16 AM PST	River Flood Warning	SEW	Grays Harbor	6 days
Jan 3, 6:18 AM PST	Winter Storm Watch	SEW		6 hr
Jan 3, 2:20 PM PST	Gale Warning	SEW		20 hr
Jan 3, 2:20 PM PST	Small Craft Advisory	SEW		9 days
Jan 3, 2:27 PM PST	Wind Advisory	SEW		14 hr

Nearby

Winter Storm Warnings in Washington, 2021 Every 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.