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| Advisory: Logan Area Mountains | Issued by Toby Weed for Saturday - April 19, 2014 - 6:40am |
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bottom line Overnight temperatures stayed in the mid to upper thirties, and the snow surface is only superficially refrozen. Heightened wet avalanche conditions exist, and a MODERATE or level 2 danger could develop in some steep terrain by afternoon. Wet avalanches are possible. Evaluate the snow and terrain carefully.
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current conditions A poor freeze overnight means only a superficial refreeze of the surface snow, and warm temperatures today will soften things up fairly rapidly. It's 35 degrees up at the 8400' Tony Grove Lake Snotel, and there's 88 inches of total snow containing 137% of average water for the date. I'm reading 34 degrees at the 9700' CSI Logan Peak weather station, with southwest winds averaging around 12 mph.
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recent activity Locally: There were several large natural wet avalanches during the warm spell, with most of the activity last Thursday and Friday., (4-10/11-2014) No avalanches were reported since. Visit our Backcountry Observations Page for details on the season's activity.
A large natural wet avalanche from the warm spell in North Hells Canyon in the Wellsville Mountain Wilderness. The avalanche was triggered by cornice-fall and ran around 2000 vertical feet. 4-11-2014.
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| type | aspect/elevation | characteristics |
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LIKELIHOOD
 LIKELY
UNLIKELY
SIZE
 LARGE
SMALL
TREND
 INCREASING DANGER
SAME
DECREASING DANGER
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description
Good general rule to avoid travel in the heat of midday. It's always a good idea to get an early start and leave the mountains before the saturated snow turns to mush. Avoid and stay out from under large and overhanging cornices along major ridge-lines, which are likely to break further back than you expect and could trigger avalanches on slopes below.
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weather Check out our one-stop weather page........HERE |
| general announcements Utah Avalanche Center mobile app - Get your advisory on your iPhone along with great navigation and rescue tools. Remember your information can save lives. If you see anything we should know about, please participate in the creation of our own community avalanche advisory by submitting snow and avalanche conditions. You can also call us at 801-524-5304 or 800-662-4140, email by clicking HERE, or include #utavy in your tweet or Instagram. Follow us at UAClogan on Twitter I'll issue weekend and intermittent advisories through April. This advisory is produced by the U.S.D.A. Forest Service, which is solely responsible for its content. It describes only general avalanche conditions and local variations always exist. |
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