Avalanche Advisory
Advisory: Ogden Area Mountains Issued by Mark Staples for Tuesday - December 6, 2016 - 6:21am
bottom line

The avalanche danger is LOW today at mid and low elevations and MODERATE at upper elevations where you are more likely to find wind slabs and wind drifted snow.




current conditions

This morning temperatures are in the single digits and low teens F. Winds are blowing southerly at 10-15 mph. Perfect winter weather if you like that sort of thing. Winds Sunday night and Monday morning affected many slopes while other slopes sheltered from the wind still have soft powder, a supportable base, and great riding conditions. An ice crust exists on south facing slopes under an inch or two of light snow.

Question: Which direction was the wind blowing in the photo below?

Answer at the bottom of this page in the "Mountain Weather" section.

Photo (K. Davis) from the Ogden area mountains yesterday

recent activity

A few, shallow wind slabs were triggered yesterday by ski patrollers with ski cuts.

Avalanche Problem 1
type aspect/elevation characteristics
LIKELIHOOD
LIKELY
UNLIKELY
SIZE
LARGE
SMALL
TREND
INCREASING DANGER
SAME
DECREASING DANGER
over the next 24 hours
description

The main problem to watch out for today will be wind slabs formed by increased winds Sunday night and Monday morning. These wind slabs were stubborn and not very sensitive yesterday. Northerly facing slopes have a thin layer of weak, faceted snow at the ground. While this layer is dormant, triggering a wind slab where this layer exists may cause an avalanche to step down and break at the ground. For the best stability and best riding conditions, look for slopes unaffected by the wind.

weather

Today will remain cold with high temperatures in the teens F as a weak storm moves over the area this afternoon. Winds today will blow 5-15 mph and briefly shift to the SW before shifting back to the NW late today as the trough moves east. By tomorrow morning there should be 2-3 inches of new snow. HOWEVER, the main weather story will be cold temperatures tomorrow which should be near 0 degrees F in the mountains. By late Thursday temperatures will start warming as another storm approaches with snow starting to fall Thursday night. This storm promises to bring more snow but it’s unclear how much at this time.

Answer to wind question: Winds were blowing downslope from the right side of the photo to the left side.

general announcements

Remember your information can save lives. If you see anything we should know about, please help us out by submitting snow and avalanche conditions. You can also call us at 801-524-5304, email by clicking HERE, or include #utavy in your tweet or Instagram.

To get help in an emergency (to request a rescue) in the Wasatch, call 911. Be prepared to give your GPS coordinates or the run name. Dispatchers have a copy of the Wasatch Backcountry Ski map.

Backcountry Emergencies. It outlines your step-by-step method in the event of a winter backcountry incident.

If you trigger an avalanche in the backcountry, but no one is hurt and you do not need assistance, please notify the nearest ski area dispatch to avoid a needless response by rescue teams. Thanks.

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