Above 2,500ft Moderate
1,800 to 2,500ft Low
Below 1,800ft Low
Degrees of Avalanche Danger ?
Recent Avalanche Activity
November 7: 1 foot of heavy new snow at Thompson Pass
A foot of snow fell Friday October 21 at Thompson Pass. Strong north wind scoured all windward slopes to ground, loaded gullies and created lee slope hard slabs. Minor accumulations over the weekend of October 29-30 with showers below 3000 feet elevation. One foot of heavy new snow November 7, snow continuing through the forecast period.
Additional Info & Media
|SNOW HISTORY:||Valdez 11/7 AM||Thompson Pass 11/9 AM|
|Current Snow Depth||16″||9″|
|24 Hour Snow / Water Equiv.||trace” /0.2″||2″ / 0.25″|
|Storm Snow / Water Equiv. (11/6)||2” / 0.4”||8″ / 0.4″|
|November Snow / Water Equiv.||?″ / ?″||12″ / 1.3″|
|Total Winter Snowfall / Water Equiv.||?″ / ?”||35″ / 3.7″|
|Snowload in Valdez||?|
|SNOW DEPTH & WATER SURVEY (date)||Depth||Snow Water Equivalent|
|Milepost 2.5 Valdez||?″||?″|
|Milepost 29 Worthington Flats||?″||?″|
|Milepost 37 Tsaina River bridge||?″||?″|
|This survey is done the first week of each month.|
- NWS forecast for Northeast Prince William Sound <here>
- NOAA NWS spot forecast for Thompson Pass <here>
- Valdez Glacier UAF weather station at 6600 feet <data here> <map here>.
- Thompson Pass weather <here>.
- Further weather resources <here>
SNOW CLIMATE ZONES:
- Maritime (Coastal) – from the Port of Valdez to Thompson Pass, all waters flowing into Valdez Arm and everything south of Marshall Pass.
- Inter-mountain (Transitional) – between Thompson Pass and Rendezvous Lodge.
- Continental (Interior) – the dry north side of the Chugach (north of 46 Mile, including the Tonsina River).
Photo of Thompson Pass <here>
Run map of some of the forecast area <here>
NEWS: Our region is “one of the snowiest places on earth” – Serendipity / Rendezvous snowfall record set in 1963 <here>.
Free smart phone avalanche forecasts at: http://www.