Extremely strong winds have significantly heightened Avalanche Conditions. Be aware of wind affected slopes as these have produced size 2 avalanches with in the last 24 hours!
Above 2,500ft Considerable
1,800 to 2,500ft Moderate
Below 1,800ft Low
Degrees of Avalanche Danger ?
|WEDNESDAY||THURSDAY||FRIDAY & SATURDAY|
Elevation: Above 2500″
Aspect: Lee to northerly winds
Terrain: Near ridges, gullies, rollovers
Likelihood (Human Triggered): Possible
Size: Small – Large
Danger Trend: Increasing
Forecaster Confidence: Fair
AVALANCHE PROBLEM SCALE DESCRIPTORS:
Sensitivity: Non-reactive, Stubborn, Responsive, Touchy
Distribution: Isolated, Specific, Widespread
Likelihood: Unlikely, Possible, Likely, Nearly Certain
Size: Small, Large, Very Large (size scale <here>)
Danger Trend: Increasing, Steady, Decreasing
Forecaster Confidence: Good, Fair, Poor
AVALANCHE PROBLEM TOOLBOX <here>
Maritime (Coastal) Specific:
Due to 60MPH winds the past 36 hours, fresh windslabs have formed and will continue to form today. Wind affected snow is where you are going to most likely trigger an avalanche today. Find wind protected areas for your play zones.
Find more photos and observations at the bottom of the page. Sharing your observations creates an informed community that everyone benefits from at some point.
Recent Avalanche Activity
Maritime (Coastal) Specific:
- 2/13-14: Numerous wet avalanches below the rain line (+-3000′) around the Port.
- 2/18: Natural sluff avalanches (loose snow) observed on sunny south facing aspects from solar radiation.
|WEATHER FORECAST for NEXT 24 HRS at 3,000 ft:|
|Temperature Forecast (Min/Max *F):||-17 / -6|
|Ridgetop Wind Forecast (direction/mph):||NE / 50-70|
|Snowfall (in/water equivalent):||0.0″ / 0.0″|
|WIND & TEMPERATURE
PAST 24 hours
|Ferry Terminal||Thompson Pass|
|Average Wind Speed (mph) / Direction||27 / NE||45 / NE|
|Max Wind Gust (mph) / Direction||43 / NE||73 / NE|
|Temperature Min / Max (*F)||20 / 28||-1 / 11|
Weather Forecast: There is no foreseeable precipitation in the near future as high pressure dominates the mountains surrounding Valdez. The Northerly outflow winds have returned in full force and are expected to continue today with gusts up to 70MPH on the pass. The air from the north has brought temperatures hovering in the single digit range…watch for early signs of frostbite!
Additional Info & Media
|SNOW HISTORY:||Valdez 3/1 AM||Thompson Pass 3/1 AM|
|24 Hour Snow / Water Equiv.||0”/0″||0″ /0″|
|Storm Snow /Water Equiv. (2/23)||0” /0″||2″ /0.1″|
|Current Snow Depth||45″||42″|
|March Snow / Water Equiv.||0″ /0″||0″ / 0″|
|Total Winter Snowfall / Water Equiv.||222.8″ /20.9”||283″ / 27.7″|
|Snowload in Valdez||~ lbs/sq. ft.|
|SNOWFALL at OTHER STATIONS:
LAST 24 HRS (2/24 AM)/STORM TOTAL (2/22-23)/STORM WATER EQUIV.:
|Nicks Valley at 4200 ft (in):||0″ / 0″ / 0″|
|Upper Tsaina at 1750 ft (in):||0″ / 0″ / 0″|
|Sugarloaf at 550 ft (in):||0″/ 0″ / 0″|
|SNOW DEPTH & WATER SURVEY (2/28/2017)||Depth||Snow Water Equivalent|
|Milepost 2.5 Valdez||41.8″||12″|
|Milepost 29 Worthington Flats||63.6″||18.6″|
|Milepost 37 Tsaina River bridge||49.3″||12.5″|
|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>
- Thompson Pass RWIS weather station <here>
- MP 30 Nicks (Happy) Valley weather station at 4200 feet <here> (scroll to Nicks Valley)
- Valdez Glacier UAF weather station at 6600 feet <data here> <map 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
Interactive Map of Valdez Forecast Areas w/ Many Resource Layers (Trevor Grams)
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.