Bollettino valanghe

Provo

Pubblicato il Jan 15, 2025valido fino al Jan 16, 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, there is MODERATE avalanche danger as it is still possible to trigger avalanches 2'-4' deep and up to 400' wide in thin, rocky zones or on slopes where avalanches have occurred earlier this season. Cautious route finding and conservative decision-making are essential, especially in steeper terrain with buried, persistent weak layers, primarily facing the north half of the compass at mid to upper elevations. With significant warming today, expect solar slopes to shed loose wet sluffs with potentially deep debris piles.

Problemi valanghivi

Persistent Slabs
N
NE
E
SE
S
SW
W
NW
Alta quota
Limite del bosco
Sotto il limite del bosco
Probabilità
Possible
Dimensione
3
The buried layer of weak, faceted snow is our main issue. Avalanches on this layer are more likely in thin, rocky terrain or where avalanches have already occurred this season. While the facets are strengthening and stability is improving, many slopes are not yet stable. You have to hit the right spot on the right slope. Or, really, the wrong spot on the wrong slope to trigger a large avalanche. The best way to avoid this problem is to avoid steep slopes that harbor poor snowpack structure.
Wind Slabs
N
NE
E
SE
S
SW
W
NW
Alta quota
Limite del bosco
Sotto il limite del bosco
Probabilità
Possible
Dimensione
1
The winds are becoming less of an issue and should be light today in all but the highest, most exposed terrain. You may find a sensitive slab near the ridgelines and around exposed terrain features. Cross-loaded slopes and cornices are good indicators of wind loading. The biggest concern with wind-drifted snow avalanches is they can break down into the buried pwl, causing a much larger slide.
Loose Wet
N
NE
E
SE
S
SW
W
NW
Alta quota
Limite del bosco
Sotto il limite del bosco
Probabilità
Possible
Dimensione
2
Due to daytime heating, wet snow avalanches may occur on solar aspects. These could carry more snow than expected and create large debris piles. Move to a shadier aspect to find colder snow. Avoid traveling underneath steep slopes with saturated snow.

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Recent Activity

Yesterday, no backcountry avalanches were reported to the UAC from the Provo Region. Check out all observations and avalanches HERE.

Snow and Weather

There are some high clouds this morning, and temperatures at mountain weather stations are in the teens to 20 °F. Winds are blowing from the north at 10-15 mph with 26 mph gusts at 11,000'. The state sits at 92% of the median snow water equivalent for this time of year. You can still find soft snow in sheltered terrain, but yesterday, the sun tagged southerly slopes, so they’ll have a thin crust this morning. With a temperature bump today, you’ll find the best riding conditions in shaded, sheltered, north-facing terrain on slopes less than about 30°.

It will be a beautiful day in the mountains, with light winds from the north, sunny skies, and temperatures reaching almost 32°F at 10,000'. Expect similar conditions tomorrow. The next storm rolls in on Friday, bringing VERY COLD temperatures and a chance of snow for the weekend.

Additional Info

The avalanche danger scale is not linear, which means that the avalanche danger doesn't jump quickly between levels. It is a much more gradual change, and right now we are on the highest end of the MODERATE danger scale, which means that you may see travel advice that more closely matches what we would see during periods of CONSIDERABLE avalanche danger. The snowpack is solid MODERATE right now, but the human factor is always an unknown. Read more about the non-linear nature of the avalanche scale HERE. Longtime avalanche forecaster Eric Trenbeath writes more about MODERATE danger with a buried persistent weak layer HERE.

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

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