11th Annual Utah Snow & Avalanche Workshop Open and Motorized Sessions Oct. 27th.

Advisory for the Salt Lake Area Mountains

Issued by Evelyn Lees for Monday, January 1, 2018 - 6:01am

The Avalanche Danger is CONSIDERABLE on steep, mid and upper elevation slopes facing northerly through easterly. Here, avalanches 1 to 2 feet deep and up to 200’ wide can be triggered, failing on sugary, faceted snow. Avalanches can still be triggered from a distance and from below.

Avoid avalanche terrain by heading to slopes less steep about 30 degrees, which are not below steeper terrain, such as meadows and rolling, low angle terrain.

As wind speeds pick up today, any sensitive drifts forming along the high ridgelines should be avoided.

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Learn more about the ratings here
Special Announcements

Solitude will be conducting avalanche mitigation work in Honeycomb Canyon. Please stay clear of this area.

The Park City ski resort is doing control work in preparation for opening in McConkeys, Jupiter, and the Peak(Chutes) areas for the next several days​ These areas are closed to backcountry use.

Weather and Snow

The stubborn high pressure plaguing the western US will strengthen through the middle of the week. For today, temperatures will warm into the mid 30s at 9,500’. The southwesterly winds will increase, with 20 mph averages and gusts to 30 mph at the mid elevations, and 35 mph averages with gusts to 55 along the high ridgelines. Clear skies tonight, lows in the teens and twenties, and continued breezy winds. No storms in the future through at least Friday.

Recent Avalanches

Avalanche activity has slowed – there have been two days in a row with no backcountry avalanches reported. However, large collapses continued yesterday on the less traveled slopes of Little Water, Willows, and near Whiskey Hill. The avalanche list is here.

With over a dozen people caught, carried and some buried in northern Utah since Christmas, it’s worth reviewing the weather and avalanche activity in Greg’s “Week in Review”.

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Moderate Considerable Considerable HIGH HIGH Considerable Considerable
Ad
Avalanche Problem #1
Persistent Weak Layer
Type
Location
Likelihood
Size
Description

Slow, very slow…like watching paint dry on a humid day. The weak faceted layers in the snowpack were overloaded with the Christmas storms, and are still talking to us. Slides can still be triggered on this layer. And while the likelihood of triggering a slide is slowly decreasing, the expected size remains the same – one to two feet deep, around 100 to 200’ wide. The facets are most widespread on northwest through easterly facing slopes at the mid and upper elevations, and can be triggered from a distance or from below.

Nothing can hurry the process, so patience and your inclinometer are your friends - there are lots of free aps for your phone, or a wide variety of styles and prices for hand held inclinometers.

If you didn’t see it yesterday, here’s Trent’s video again of the recent skier triggered slide in Dry Fork – an incredibly clear explanation of the current northern Utah snowpack and avalanche problem.

General Announcements

FOR MORE GENERAL INFORMATION AND FAQ, CLICK HERE

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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 occur.

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