WWA Summary for Avalanche Watch

Avalanche Watch

MTZ006-043-232330-

BACKCOUNTRY AVALANCHE WATCH
West Central Montana Avalanche Center Missoula MT
Relayed by National Weather Service Missoula MT
425 PM MST Sat Feb 22 2025

The following message is transmitted at the request of the West
Central Montana Avalanche Center Missoula MT

...The West Central Montana Avalanche Center Missoula MT has
issued a Backcountry Avalanche Watch...

* WHAT...A warm weather system with potential for high elevation
  rain will impact the area Sunday. Avalanche danger will rise
  rapidly as the rain line rises in elevation.

* WHERE...The Bitterroot mountains from Lost Trail Pass to Lolo
  Pass, The Rattlesnake Zone, and the Seeley Lake area.

* WHEN...In effect until 700 AM MST Sunday.

* IMPACTS...Heavy snowfall and rain may result in widespread areas
  of unstable snow. Larger wet slab avalanches could fail in north
  facing terrain which have potential to run down into areas not
  normally associated with avalanches.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Very dangerous avalanche conditions. Travel on and below steep
slopes is not recommended. Avalanches may run long distances and
can run into mature forests, valley floors, or flat terrain.

Consult http://www.missoulaavalanche.org for more detailed
information.

Similar avalanche danger may exist at locations outside the
coverage area of any Avalanche Center.

&&

$$

IDC017-021-079-231400-

Avalanche Watch
Idaho Panhandle Avalanche Center Sandpoint ID
Relayed by National Weather Service Spokane WA
736 AM PST Sat Feb 22 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 Saturday 6 AM PST to
  Sunday 6 AM PST. Very dangerous avalanche conditions are likely
  to develop by Sunday morning and raise the danger to High
  (Level 4of5).

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

* WHEN...In effect from Sat 06:00 PST to Sun 06:00 PST.

* IMPACTS...A warm, wet storm will deliver a combination of dense
  storm snow and moderate to heavy rainfall to the snowpack. The
  snow line will likely rise to between 6,000 and 7,000 feet by
  Sunday evening. The combination of strong winds and rain
  saturating the upper snowpack may be sufficient to overload weak
  snow layers 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.


$$

MTZ001-231530-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Backcountry Avalanche Watch
Idaho Panhandle Avalanche Center Sandpoint ID
Relayed by National Weather Service Missoula MT
819 AM MST Sat Feb 22 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 PST Sat Feb 22 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 Saturday 6 AM PST to Sunday
6 AM PST. Very dangerous avalanche conditions are likely to develop by
Sunday morning and raise the danger to High (Level 4of5).

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

* WHEN...In effect from Sat 06:00 PST to Sun 06:00 PST.

* IMPACTS...A warm, wet storm will deliver a combination of dense storm snow
and moderate to heavy rainfall to the snowpack. The snow line will likely
rise to between 6,000 and 7,000 feet by Sunday evening. The combination of
strong winds and rain saturating the upper snowpack may be sufficient to
overload weak snow layers 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.

$$

MTZ001-002-231400-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Backcountry Avalanche Watch
Flathead Avalanche Center Hungry Horse MT
Relayed by National Weather Service Missoula MT
656 AM MST Sat Feb 22 2025

The following message is transmitted at the request of Flathead Avalanche
Center Hungry Horse MT.

...AVALANCHE WATCH ISSUED BY THE FLATHEAD AVALANCHE CENTER...

06:47 MST Sat Feb 22 2025
The Flathead Avalanche Center in Hungry Horse has issued a BACKCOUNTRY
AVALANCHE WATCH for the following areas:

NWS Missoula MT -
MTZ001 (MTZ001)...MTZ002 (MTZ002)

* WHAT...Very dangerous avalanche conditions may develop as an Atmospheric
River brings warm temperatures, heavy snowfall, and rain to the region
Saturday night and Sunday.

* WHERE...On and below steep slopes in the Whitefish, Swan, Flathead Ranges,
and Glacier National Park.

* WHEN...In effect from Sat 06:47 MST to Sun 06:47 MST.

* IMPACTS...Heavy snowfall, rain, and strong winds on a weak snowpack may
result in widespread areas of unstable snow. Natural and human-triggered
avalanches could be large enough to bury a person.

* PRECAUTIONARY / PREPAREDNESS ACTIONS...Travel in avalanche terrain is not
recommended if dangerous avalanche conditions develop. Natural and triggered
avalanches may run long distances into forests, valley floors, or flat
terrain.

Consult http://www.flatheadavalanche.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.

$$