Bollettino valanghe

Ogden

Pubblicato il Mar 26, 2024valido fino al Mar 27, 2024Utah 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 a MODERATE avalanche danger on all aspects at the mid and upper elevations where human triggered soft slab avalanches are possible. The avalanche danger is LOW in lower elevation terrain. Evaluate snow and terrain carefully today as the likelihood of triggering an avalanche will increase with additional precipitation, wind transport, and any hint of March sun that may create periods of increased instability.

Problemi valanghivi

Storm Slabs
N
NE
E
SE
S
SW
W
NW
Alta quota
Limite del bosco
Sotto il limite del bosco
Probabilità
Possible
Dimensione
2
Over the last few days, the new snow has been reactive to backcountry travelers. The layer of weakness in most cases has been density changes within the newest snow. This weak layer was starting to settle out below 8,000' where it has become more difficult to trigger avalanches at lower elevations. Today, it will be possible trigger a new snow avalanche failing on a density change. Any new snow that comes in this afternoon will be sensitive to backcountry travelers on steep slopes. IF the slope has had any wind or sun affect you may be able to trigger soft slab avalanches 10"-14" deep breaking above you.

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Recent Activity

Yesterday, we had no backcountry observations from the Ogden Area Mountains. Just south of Ogden in the Central Wasatch we had reports of soft slab avalanches up to 10"-18" deep. The avalanche that got my attention was in Big Cottonwood Canyon in the Silver Fork drainage. It was reported as 2.5' deep, 100' wide and ran 400' vertical feet (photo below). This avalanche is unique in that it appears to have started as a dry snow avalanche that took a hint of warming and then transitioned to a wet snow avalanche. It is much deeper than the other reported avalanches from the last two days and has more slab like characteristics. This is something you might see with any hint of warming on steep east facing terrain in the southern portion of the Ogden Forecast Region.

(Photo: Yannick)

Read all the observations HERE.

Snow and Weather

Currently under overcast skies trailhead temperatures are in the mid-20's °F while the highest peaks are in the mid-teens °F. Winds are blowing lightly from the west gusting to the teens MPH at the lower ridge-lines in the low 20's gusting to 30 MPH at the highest ridge-lines. There was another 2"-5" of new snow in the last 24 hours bringing storm totals to 8"-18"of snow and .80"-1.60" water. Today, look for overcast skies with increasing chances of snow, wind, and lightning this afternoon. Temperatures are forecast to be 30-35°F with winds blowing from the north-northwest 10 gusting to 15 MPH at the 8,000' ridge-lines and from the west-northwest 25 gusting to 30 MPH at the 9,000' ridge-lines with chances for higher winds during increased snowfall. Look for 1"-2" of new snow with the off chance of 2"-4" and up to .30" water in select areas with increasing snowfall rates and winds this afternoon. The freezing level should stay around 5,000' which means that with cloudy skies and colder temperatures the snow surface will stay soft making for excellent travel today. With any hint of sun today the snow surface will heat up quickly and green-housing could occur on all aspects and elevations.

Read the updated forecast discussion from our partners at the National Weather Service HERE.

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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.

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