Bollettino valanghe

Ogden

Pubblicato il Jan 25, 2025valido fino al Jan 26, 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

Areas of MODERATE avalanche danger exist on all aspects at the upper elevations and on mid-elevation aspects facing northwest through north and east where it is possible to trigger a hard slab avalanche of wind-drifted snow 1-2 feet deep. On northerly and east-facing slopes at the mid and upper elevations, there is a MODERATE danger of triggering an avalanche that fails 2-3 feet deep in a persistent weak layer.

Problemi valanghivi

Wind Slabs
N
NE
E
SE
S
SW
W
NW
Alta quota
Limite del bosco
Sotto il limite del bosco
Probabilità
Possible
Dimensione
2
Strong wind from the past week has created hard slabs of wind-drifted snow in many areas. These slabs formed over our faceted snow surface making them a bit more tricky. Yesterday, while investigating Thursday's human-triggered avalanche, I was able to get propagating results in my snowpit tests. This tells me these slabs are still reactive, and human-triggered avalanches remain possible.

You can find these wind slabs well off ridgelines and on all aspects, but more commonly on slopes facing north through east. Be on the lookout for wind slabs today, and remember, hard wind slabs allow you to get well out onto a slope before fracturing, often even above you.
Persistent Slabs
N
NE
E
SE
S
SW
W
NW
Alta quota
Limite del bosco
Sotto il limite del bosco
Probabilità
Unlikely
Dimensione
3
Triggering an avalanche that fails in the buried facets and depth hoar down near the ground is becoming increasingly unlikely and this avalanche problem is close to dormancy. Steep, thin rocky terrain is the most suspect where you can trigger an avalanche failing in the deeply-buried persistent weak layer, and any avalanche involving a recent wind slab may step down to these deeper buried layers.

Special Announcement

Urgent battery replacement required for anyone who received batteries from one of our participating "Batteries for Beacons" shops. Please review the "Batteries for Beacons" replacement notice on our blog. Batteries distributed through our "Batteries for Beacons" program this year have shown to be inadequate length.

Join the UAC at Deer Valley on January 30th for the 2nd Annual Blizzard Ball Gala. Bruce Tremper, the Former Director of the Utah Avalanche Center, will deliver the keynote address.

Recent Activity

Long-time observer Doug Wewer reported a collapse on a west-facing slope at 7,600 feet in elevation.

On Thursday in the Wasatch, a skier was caught and carried in an avalanche along the Park City Ridgeline on a run called Katie's. The avalanche was on a north-facing slope at 9,700' and was a hard slab of wind-drifted snow. It was 1 to 2 feet deep and 300 feet wide and ran into some nasty trees. The skier did sustain some injuries but will be okay.

Observations and Avalanches

Snow and Weather

Overnight, the mountains picked up a trace of new snow. The wind currently blows from the east-southeast at speeds of 10-15 mph across the Ogden Skyline. Over on James Peak, the wind is a bit stronger and blows 15-20 mph gusting to 25. Mountain temperatures range from 10-20 °F.

As a cutoff low forms over California, we should see light snowfall throughout the day, with perhaps 1 to 6 inches of new snow if we are lucky. The wind will oscillate from south to southeast blowing 10-15 mph across the higher terrain. Mountain temperatures will climb into the mid-20s °F.

Unfortunately, strong winds from the past week have wreaked havoc on our snow surface. It's a moonscape out there in places. Hard drifts of wind-blown snow have been scattered throughout the terrain.

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