Please join us at the 23rd annual Black Diamond Fall Fundraiser Party Thursday Sept 15. Tickets are on sale now here, at the Black Diamond store & at REI. Special bonus raffle for online ticket purchasers! |
Please join us at the 23rd annual Black Diamond Fall Fundraiser Party Thursday Sept 15. Tickets are on sale now here, at the Black Diamond store & at REI. Special bonus raffle for online ticket purchasers! |
Advisory: Logan Area Mountains | Issued by Toby Weed for Tuesday - February 16, 2016 - 7:08am |
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special announcement We are offering an Avalanche Awareness for Snowmobilers Course on February 25 & 27. For more information and to register go..... HERE
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current conditions The 8400' Tony Grove Snotel reported about 8 inches of wet snow from Sunday/Monday containing 1.8 inches of water. Yesterday afternoon there was 75 inches of total snow at the site, containing 105% of average water content for the date. I'm reading 26 degrees at the 9700' CSI Logan Peak weather station, and the wind sensor is rimed. Ogden Peak shows sustained and gusty westerly winds all day yesterday, diminishing a bit overnight and currently averaging in the mid twenties. Temperatures look to have stayed above freezing at lower elevations and cloud cover likely helped reduce overnight radiation heat loss. The snow at mid and lower elevations yesterday was soft, inverted, and saturated by rain, and lacking a good overnight freeze dangerous wet avalanche conditions probably still exist. A large natural wet avalanche ran into lower elevations, but stopped above the River Trail yesterday in Lower Logan Canyon just up canyon from 2nd Dam. |
recent activity
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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
Rain saturated the low elevation snow, significant natural wet avalanches occurred overnight yesterday and continued during the day with periods of solar warming on steep low and mid elevation slopes. Significant loose wet avalanches involving saturated soft snow are again likely with midday heating today on steep slopes below the rain/snow line... Dangerous wet slab avalanches remain possible in some low elevation areas with saturated snow and poor snow structure.
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type | aspect/elevation | characteristics |
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LIKELIHOOD
LIKELY
UNLIKELY
SIZE
LARGE
SMALL
TREND
INCREASING DANGER
SAME
DECREASING DANGER
|
description
Triggered wind slab avalanches up to around 2 feet deep are possible at upper elevations today due to significant drifting from strong and sustained west winds during periods of snowfall during the Sunday/Monday storm. A thick rime or rain crust formed up to upper elevations in many areas and may be welding most of the wind slabs in place, but this lack of sensitivity may also allow people to get well out on the wind slabs before they fail.
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weather We'll see lots of sunshine today, sustained west winds, and a high temperature at 8500' of around 40 degrees. It'll be partly cloudy tonight with temperatures hovering around freezing and lighter southwest winds. We'll see increasing clouds tomorrow ahead of the next storm system and high temperatures in the mountains pushing 50 degrees! Snow is likely Wednesday night and Thursday, with 4 to 7 inches of accumulation forecast.
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general announcements Please submit snow and avalanche observations from your ventures in the backcountry HERE. You can call us at 801-524-5304 or email HERE, or include #utavy in your Instagram or Tweet us @UAClogan. To report avalanche activity in the Logan Area or to contact the local avalanche forecaster call me, Toby, at 435-757-7578. We'll update this advisory throughout the season on Monday, Wednesday, Friday, and Saturday mornings by about 7:30 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. |
Advisory Hotline: (888) 999-4019 | Contact Information