Avalanche Advisory
Advisory: Ogden Area Mountains Issued by Evelyn Lees for Thursday - March 10, 2016 - 7:09am
bottom line

The avalanche danger is generally LOW early this morning, though wind drifts can still be triggered on upper elevation slopes facing north through southeast. The avalanche danger will increase to MODERATE with heating today – wet loose sluffs will be easy to trigger, and natural slides are possible. Avoid travel on and below steep sunny slopes once the snow heats up.
special announcement

Tonight! 6pm: Utah Adventure Journals final installment of the speaker series with Ted and Jenny Wilson and the movie "The Grand Rescue" at Snowbird presented by Scarpa. Raffle held to benefit UAC. Must be 21 or older to attend. DETAILS HERE!

The Utah Avalanche Center greatly values our longtime partnership with our world-class resorts and is blowing out the remaining donated lift tickets from Snowbird, Snowbasin, Sundance, and Nordic Valley with reduced prices. Every penny you spend benefits the Utah Avalanche Center.
current conditions

Under partly cloudy skies, temperatures in the Ogden area mountains are warming, and are now in the mid 20s along the high ridge lines, and the mid 30s at many of the mid elevation stations. Winds have shifted to the southwest and are light, averaging 15 mph at the mid elevations, and 20 to 25 mph across the high peaks. Yesterday’s “mini” storm dropped 3 to 5” of dense snow, improving the riding conditions.

Today, any crusty sunny slopes will rapidly soften; the powder on upper elevation northerly facing slopes will be good once again, though inverted in places.
recent activity

Yesterday morning, upper elevation winds kicked up, lasting through early afternoon and drifting the snow. Resort avalanche reduction work in the Ogden area mountains reported isolated soft slabs and also triggered small new snow wind slabs and cornices with ski cuts and explosives, at upper elevations.

Of interest is the slide below, triggered yesterday remotely from the ridge line n Little Cottonwood. This is an indication that a faceted snow layer is involved. In isolated places, buried faceted snow and crust sandwiches have been observed in the Ogden area mountains.

iPhoto: KP, Obelisk, Hogum Hogback
Avalanche Problem 1
type aspect/elevation characteristics
LIKELIHOOD
LIKELY
UNLIKELY
SIZE
LARGE
SMALL
TREND
INCREASING DANGER
SAME
DECREASING DANGER
over the next 12 hours
description

Clear skies, strong sun and a big jump in temperatures make wet snow avalanches the primary concern today. While the danger is low early this morning, it will rapidly rise as the day heats up. Wet loose sluffs will be easy to trigger on steep, sunny slopes – first east, then south, then west – and on low and mid elevation northerly facing slopes. Natural avalanches may occur on the steepest sunny slopes. Though initially shallow, these wet loose sluffs could build up significant debris piles at the bottoms of steep gullies or in terrain traps like creek bottoms.

Kory Davis photo of glide crack - these may grow and release with several hot days in the forecast.
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

It will still be possible to trigger a few wind slabs along the high ridges today on north through southeasterly facing slopes. While most of these are not large enough to bury you, they will definitely catch and carry you, and a rough through rocks or a long ride could result in injuries. In addition, both cornices and dry loose sluffs can be triggered.
weather

It is going to be down right hot today – temperatures will soar into the mid to upper 30s along the ridge lines, and into the mid 50s at 7 to 8,000’. The southwesterly winds will increase this afternoon, into the 25 to 35 mph range this afternoon, with gusts near 40. Friday will again be hot, but even windier and with variable high thin clouds. Cooler temperatures and snow are in the forecast for late in the weekend through much of next week.
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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Ski Utah mobile snow updates

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. 

Benefit the Utah Avalanche Center when you shop from Backcountry.com or REI:  Click this link for Backcountry.com or this link to REI, shop, and they will donate a percent of your purchase price to the UAC.  Both offer free shipping (with some conditions) so this costs you nothing!

Benefit the Utah Avalanche Center when you buy or sell on ebay - set the Utah Avalanche Center as a favorite non-profit in your ebay account here and click on ebay gives when you buy or sell.  You can choose to have your seller fees donated to the UAC, which doesn't cost you a penny.

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.