Avalanche Advisory
Advisory: Ogden Area Mountains Issued by Drew Hardesty for Monday - December 4, 2017 - 7:25am
bottom line

Areas of CONSIDERABLE danger exists in steep terrain this morning. Wind drifts and loose snow avalanches should be expected in all steep terrain holding previous snow (upper elevation northwest through northeast facing slopes). Shooting cracks and audible collapsing of the snowpack are immediate signs of potential avalanche danger.

Hot Tip: the best conditions will also be the safest: lower angle non-drifted terrain will be 5 star with the cold smoke on the underlying crusts.
special announcement
current conditions

A good old fashioned cold front rolled through yesterday afternoon and we're up to 8-10" in the mountains and 6-8" at the trailheads. Temps are in the teens. Winds have calmed significantly from yesterday and are blowing from the west northwest at 10-15mph with gusts to 25.

recent activity

There has been no reported recent avalanche activity in the Ogden area mountains.
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 low density snow should be quite reactive this morning, running naturally and with human provocation in steep terrain that harbored previously existing snow. Expect the sluffs to run fast and far in steep sustained terrain. For more info on loose snow avalanches, click the 'i' next to the info-graphic above.

Avalanche Problem 2
type aspect/elevation characteristics
LIKELIHOOD
LIKELY
UNLIKELY
SIZE
LARGE
SMALL
TREND
INCREASING DANGER
SAME
DECREASING DANGER
over the next 24 hours
description

Soft but sensitive wind drifts up to 18" are likely in upper elevation wind drifted terrain. Drifts in the low density snow will also be cross-loaded beyond sub-ridges and into gullies and to the lee of other terrain features. Watch for cracking and spider-webbing of the snow for immediate clues to instability.

weather

Get it while you can. We may be able to squeeze another inch or two before it moves off to the east. Winds as well should start to calm down and blow 15mph from the northwest. Temps will be in the upper single digits along the high ridgelines and the teens at the trailheads. What has been already billed as a "monster ridge" starts to build in tomorrow for the foreseeable future.
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.

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.

Utah Avalanche Center mobile app - Get your advisory on your iPhone along with great navigation and rescue tools.

To those skinning uphill at resorts: it is critical to know the resort policy on uphill travel. You can see the uphill travel policy for each resort 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.