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Winter Storm Warning

URGENT - WINTER WEATHER MESSAGE
National Weather Service Spokane WA
244 PM PDT Fri Mar 21 2025

IDZ004-221200-
/O.CON.KOTX.WS.W.0007.250322T0000Z-250322T1800Z/
Central Panhandle Mountains-
Including the cities of Lookout Pass
244 PM PDT Fri Mar 21 2025

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 AM PDT SATURDAY
ABOVE 4000 FEET...

* WHAT...Heavy snow expected above 4000 feet. Total snow
  accumulations between 5 and 15 inches. Winds gusting as high as 35
  mph.

* WHERE...Lookout Pass.

* WHEN...Until 11 AM PDT Saturday.

* IMPACTS...Travel could be very difficult to impossible. The
  hazardous conditions could impact the Friday evening commute.

* ADDITIONAL DETAILS...Snow rates of 1 inch per hour are possible at
  times between 8 PM Friday - 5 AM Saturday.

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
information in Idaho, call 5 1 1.

&&

$$

JCLEV
URGENT - WINTER WEATHER MESSAGE
National Weather Service Spokane WA
244 PM PDT Fri Mar 21 2025

WAZ048-221200-
/O.CON.KOTX.WS.W.0007.000000T0000Z-250322T1200Z/
Western Chelan County-
Including the cities of Stevens Pass, Stehekin, and Holden
Village
244 PM PDT Fri Mar 21 2025

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM PDT SATURDAY...

* WHAT...Heavy snow. Additional snow accumulations between 2 and 13
  inches. Winds gusting as high as 35 mph.

* WHERE...Stevens Pass and Holden Village.

* WHEN...Until 5 AM PDT Saturday.

* IMPACTS...Travel could be very difficult to impossible. The
  hazardous conditions could impact the Friday evening commute.

* ADDITIONAL DETAILS...Snow rates of 1 inch per hour are possible at
  times over Stevens Pass between 5 PM PDT Friday and 1 AM PDT
  Saturday.

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 travel
information in Washington, go to https://wsdot.wa.gov/travel

&&

$$
URGENT - WINTER WEATHER MESSAGE
National Weather Service Seattle WA
222 PM PDT Fri Mar 21 2025

WAZ301-302-221200-
/O.CON.KSEW.WS.W.0005.000000T0000Z-250322T1200Z/
Cascades of Whatcom and Skagit Counties-Cascades of Snohomish and
Northern King Counties-
Including Stevens Pass and Mount Baker
222 PM PDT Fri Mar 21 2025

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM PDT SATURDAY...

* WHAT...Heavy snow. Additional snow accumulations of 4 to 14 inches.

* WHERE...Cascades of Snohomish and Northern King Counties and
  Cascades of Whatcom and Skagit Counties.

* WHEN...Until 5 AM PDT Saturday.

* IMPACTS...Roads, especially bridges and overpasses, will likely
  become slick and hazardous. Travel could be very difficult to
  impossible.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. Prepare for possible power
outages.

&&

$$
URGENT - WINTER WEATHER MESSAGE
National Weather Service Missoula MT
259 AM MDT Fri Mar 21 2025

MTZ004-220900-
/O.UPG.KMSO.WW.Y.0024.250322T0000Z-250322T1800Z/
/O.NEW.KMSO.WS.W.0006.250322T0000Z-250322T1800Z/
Lower Clark Fork Region-
259 AM MDT Fri Mar 21 2025

...WINTER STORM WARNING IN EFFECT FROM 6 PM THIS EVENING TO NOON MDT
SATURDAY ABOVE 4000 FEET...

* WHAT...Heavy snow expected above 4000 feet. Likelihood of major
  impacts from snow is up to 80 percent. Total snow accumulations
  between 8 and 12 inches. Winds gusting as high as 40 mph.

* WHERE...I-90 Lookout Pass to Haugan.

* WHEN...From 6 PM this evening to noon MDT Saturday.

* IMPACTS...Winter traveling conditions. For MAJOR impacts from
  snow, expect considerable disruptions to normal activities.
  Dangerous or impossible traveling conditions. Avoid travel in the
  impacted areas if possible. Widespread closures and disruptions to
  infrastructure may occur.

* ADDITIONAL DETAILS...A burst of intense snowfall rates and strong
  winds will accompany a cold frontal passage Friday evening.

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.

&&

$$

Winter Weather Advisory

URGENT - WINTER WEATHER MESSAGE
National Weather Service Pendleton OR
205 PM PDT Fri Mar 21 2025

ORZ502-WAZ030-220600-
/O.CON.KPDT.WW.Y.0021.000000T0000Z-250322T0600Z/
Northern Blue Mountains of Oregon-Northwest Blue Mountains-
Including the cities of Tollgate, Meacham, and Ski Bluewood
Resort
205 PM PDT Fri Mar 21 2025

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 PM PDT THIS
EVENING ABOVE 4000 FEET...

* WHAT...Wet snow. Additional snow accumulations between 5 and 10
  inches. Winds gusting as high as 40 mph.

* WHERE...In Oregon, Northern Blue Mountains of Oregon. In
  Washington, Northwest Blue Mountains.

* WHEN...Until 11 PM PDT this evening.

* IMPACTS...Travel could be difficult due to periods of moderate to
  heavy snow. Gusty winds could bring down tree branches.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. In Oregon, the latest
road conditions can be obtained by visiting tripcheck.com online, or
by calling 5 1 1. In Washington, the latest road conditions can be
obtained by visiting the website wsdot.wa.gov/travel.

&&

$$
URGENT - WINTER WEATHER MESSAGE
National Weather Service Pendleton OR
205 PM PDT Fri Mar 21 2025

WAZ522-220645-
/O.CON.KPDT.WW.Y.0021.000000T0000Z-250322T1200Z/
Upper Slopes of the Eastern Washington Cascades Crest-
Including the cities of Roslyn and Easton
205 PM PDT Fri Mar 21 2025

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM PDT SATURDAY
ABOVE 2500 FEET...

* WHAT...Snow. Additional snow accumulations between 6 and 12
  inches. Winds gusting as high as 40 mph.

* WHERE...Upper Slopes of the Eastern Washington Cascades Crest.

* WHEN...Until 5 AM PDT Saturday.

* IMPACTS...Periods of moderate and heavy snow will combine with low
  visibilities to create difficult driving conditions. Gusty winds
  could bring down tree branches.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. The latest road
conditions can be obtained by visiting the website
wsdot.wa.gov/travel.

&&

$$

MC
URGENT - WINTER WEATHER MESSAGE
National Weather Service Missoula MT
259 AM MDT Fri Mar 21 2025

IDZ005-006-010-MTZ002-006-220900-
/O.CON.KMSO.WW.Y.0024.250322T0000Z-250322T1800Z/
Northern Clearwater Mountains-Southern Clearwater Mountains-
Eastern Lemhi County-West Glacier Region-Bitterroot/Sapphire
Mountains-
259 AM MDT Fri Mar 21 2025 /159 AM PDT Fri Mar 21 2025/

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 6 PM MDT /5 PM
PDT/ THIS EVENING TO NOON MDT /11 AM PDT/ SATURDAY...

* WHAT...Snow expected. Likelihood of moderate impacts from snow is
  greater than 80 percent. Total snow accumulations between 6 and 12
  inches above 4000 feet. Winds gusting as high as 35 mph. Below
  4000 feet, a trace to 1 inch of snow will be possible, especially
  on un-paved surfaces.

* WHERE...In IDAHO, Eastern Lemhi County, Northern Clearwater
  Mountains, and Southern Clearwater Mountains. In MONTANA, West
  Glacier Region and Bitterroot/Sapphire Mountains.

* WHEN...From 6 PM MDT /5 PM PDT/ this evening to noon MDT /11 AM
  PDT/ Saturday.

* IMPACTS...For MODERATE impacts from snow, expect disruptions to
  normal activities. Hazardous traveling conditions. Use extra
  caution while driving. Closures and disruptions to infrastructure
  may occur.

* ADDITIONAL DETAILS...A burst of intense snowfall rates and strong
  winds will accompany a cold frontal passage across Marias Passes
  as early as Friday evening before reaching Lost Trail early
  Saturday 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.

&&

$$

Avalanche Watch

IDC017-021-079-221300-

Avalanche Watch
Idaho Panhandle Avalanche Center Sandpoint ID
Relayed by National Weather Service Spokane WA
645 AM PDT Fri Mar 21 2025

The following message is transmitted at the request of the Idaho
Panhandle Avalanche Center.

The Idaho Panhandle Avalanche Center in Sandpoint has issued a
BACKCOUNTRY AVALANCHE WATCH for the following areas:
NWS Spokane WA - ID 017 (Bonner County)...ID 021 (Boundary
County)...ID 079 (Shoshone County)

* WHAT...An Avalanche Watch is in effect from Friday 6 AM PST to
  Saturday 6 AM PST. Very dangerous avalanche conditions are
  likely to develop by Saturday morning and raise the danger to
  High (Level 4of5).

* WHERE...The Selkirk, West and East Cabinet, and Bitterroot
  Mountains - Silver Valley above 4,000 feet.

* WHEN...In effect from Fri 06:00 PDT to Sat 06:00 PDT.

* IMPACTS...A warm, wet storm will quickly deliver several feet
  of dense, new snow and strong winds. The new snow load may be
  sufficient to overload a variety of weak snow layers in the
  upper snowpack and cause a widespread cycle of avalanches large
  enough to bury, injure, or kill a person. Some of these
  avalanches could release naturally, and it will become very easy
  for backcountry travelers to trigger them.

* PRECAUTIONARY / PREPAREDNESS ACTIONS...Travel in or below
  avalanche terrain is not recommended during this period.

Consult http://www.idahopanhandleavalanche.org/ or
www.avalanche.org for more detailed information.

Similar avalanche danger may exist at locations outside the
coverage area of this or any avalanche center.


$$
MTZ001-221300-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Backcountry Avalanche Watch
Idaho Panhandle Avalanche Center Sandpoint ID
Relayed by National Weather Service Missoula MT
735 AM MDT Fri Mar 21 2025

The following message is transmitted at the request of Idaho Panhandle
Avalanche Center Sandpoint ID.

...AVALANCHE WATCH ISSUED BY THE IDAHO PANHANDLE AVALANCHE CENTER...

06:00 PDT Fri Mar 21 2025
The Idaho Panhandle Avalanche Center in Sandpoint has issued a BACKCOUNTRY
AVALANCHE WATCH for the following areas:

NWS Missoula MT -
MTZ001 (MTZ001)

NWS Spokane WA -
ID 017 (Bonner County)...ID 021 (Boundary County)...ID 079 (Shoshone County)

* WHAT...An Avalanche Watch is in effect from Friday 6 AM PST to Saturday
6 AM PST. Very dangerous avalanche conditions are likely to develop by
Saturday morning and raise the danger to High (Level 4of5).

* WHERE...The Selkirk, West and East Cabinet, and Bitterroot Mountains -
Silver Valley above 4,000 feet.

* WHEN...In effect from Fri 06:00 PDT to Sat 06:00 PDT.

* IMPACTS...A warm, wet storm will quickly deliver several feet of dense,
new snow and strong winds. The new snow load may be sufficient to overload a
variety of weak snow layers in the upper snowpack and cause a widespread
cycle of avalanches large enough to bury, injure, or kill a person. Some of
these avalanches could release naturally, and it will become very easy for
backcountry travelers to trigger them.

* PRECAUTIONARY / PREPAREDNESS ACTIONS...Travel in or below avalanche
terrain is not recommended during this period.

Consult http://www.idahopanhandleavalanche.org/ or www.avalanche.org for
more detailed information.

Similar avalanche danger may exist at locations outside the coverage area of
this or any avalanche center.

$$
U.S. Dept. of Commerce
NOAA National Weather Service
1325 East West Highway
Silver Spring, MD 20910
E-mail: w-nws.webmaster@noaa.gov
Page last modified: June 2, 2009
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