Bollettino valanghe

Ogden

Pubblicato il Feb 1, 2025valido fino al Feb 2, 2025Utah Avalanche Center

Pericolo valanghe

Alta quota
Limite del bosco
Sotto il limite del bosco

Non aggiornato — questo bollettino è scaduto 2 years ago. Stai vedendo condizioni passate, non il bollettino in corso.

In sintesi

Today, the avalanche danger is CONSIDERABLE at all aspects and elevationsfor the Ogden Area Mountains. It will be possible for humans to trigger an avalanche 1'-3' deep, failing on buried facets near the ground. This is more likely in shallow thin rocky zones or in repeater avalanche paths. Expect to see, and look to avoid loose new snow, soft slab and wind-drifted snow avalanches.

Problemi valanghivi

Wind Slabs
N
NE
E
SE
S
SW
W
NW
Alta quota
Limite del bosco
Sotto il limite del bosco
Probabilità
Likely
Dimensione
2
Strong winds have drifted the new snow into wind drifts that now sit on top of an old weak sugary faceted snow surface. These drifts will not bond well to the old snow surface. Look for and avoid pillowy, rounded new wind drifts. Shooting cracks, cornices, and collapsing are all signs of wind-drifted snow and these are areas to avoid. With increasing wind speeds throughout the day drifts may appear lower on the slope and further down ridgelines.
Storm Slabs
N
NE
E
SE
S
SW
W
NW
Alta quota
Limite del bosco
Sotto il limite del bosco
Probabilità
Very Likely
Dimensione
2
Heavy dense new snow is falling onto a weak layer of faceted old snow. Expect to see loose new snow avalanches at all aspects and elevations and shallow soft slab avalanches, up to 12" deep in higher elevation terrain. Any slope over 30° is suspect. Stay off of and out from underneath slopes greater than 30° particularly during periods of increased snowfall rates. With rising temperatures this afternoon these new snow avalanches could be either wet or dry. Any rain on snow, particularly rain on buried facets is suspect and if it does turn to rain then avoid traveling on or under any steep terrain.
Persistent Slabs
N
NE
E
SE
S
SW
W
NW
Alta quota
Limite del bosco
Sotto il limite del bosco
Probabilità
Possible
Dimensione
3
There are currently two buried weak layers in our snowpack. One is a layer of buried near-surface facets that formed during last week's cold clear weather. This layer will not bond well to the newest snow and expect to see sloughing and loose dry avalanches on this layer. The second layer is buried near the ground. This layer was formed in December and was responsible for many large avalanches during the Holiday Avalanche Cycle. This layer will be more likely to be triggered as the storm continues and we could see avalanches 1'-3' deep. The most likely places to trigger an avalanche on this layer of buried facets are steep slopes that have a thinner snowpack, rocky gully features, and areas that previously avalanched. Read more about repeater avalanches in Derek's observation from Cutler Ridge HERE.

Read more about persistent weak layer avalanches HERE.

Recent Activity

There were no reports of avalanche activity from the backcountry yesterday. Read all observations HERE.

Snow and Weather

Currently, under overcast skies trailhead temperatures are in the low 30's °F and the highest peaks are in the mid 20's °F. Wind speeds at the lower ridgelines are blowing from the northwest in the 20's gusting to the 40's and at the highest ridgelines from the southwest in the 30's gusting to the 40's with max gusts up to the mid 50's MPH. Mountain weather stations report 2"-4" snow with .20"-.48" water overnight. Today, a fire hose of a storm lines up on Northern Utah. We can expect to see temperatures 30-36 °F and rising this afternoon. Trailhead winds will blow from the southwest 15 gusting to 20 and at the highest peaks 30 gusting to 40 with gusts to the high 50's MPH and rising wind speeds this afternoon. 12"-16" of snow is forecast with 1.30"-2" water and the possibility of rain in the lower elevation terrain. Our partners at the National Weather Service have issued a Winter Storm Warning, effective until Sunday at 5PM.

General Announcements

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This information does not apply to developed ski areas or highways where avalanche control is normally done. This forecast is from the U.S.D.A. Forest Service, which is solely responsible for its content. This forecast describes general avalanche conditions and local variations always occur.

Observations and Avalanches

Backcountry Emergency Procedures