![](../../sites/all/themes/uac/img/logo/fb25x25.png)
![](../../sites/all/themes/uac/img/logo/tw25x25.png)
Advisory: Logan Area Mountains | Issued by Toby Weed for March 9, 2013 - 6:28am |
---|
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() Above 8,500 ft.
7,000-8,500 ft.
5,000-7,000 ft.
|
bottom line Heightened avalanche conditions exist in places, and there's a MODERATE (or level 2) danger in the backcountry. Recently added weight from drifting snow or warming might reactivate dormant weak layers consisting of sugary faceted snow, and dangerous persistent slab avalanches are possible in outlying terrain with poor snow structure. Drifting occurred overnight and north winds are increasing this morning, so you could trigger wind slab avalanches or cornice falls in drifted upper elevation terrain. Warmth and perhaps a bit of sun will again soften the saturated lower elevation snow and increase the danger of wet avalanches. Evaluate the snow and terrain carefully, and avoid drifted areas and slopes with saturated snow.
|
![]() |
current conditions The Tony Grove Snotel at 8400' reports 28 degrees, and with 64" of total snow, the station sits at 64% of average water for the date. The CSI Logan Peak weather station at 9700' reports 21 degrees and north-northwest winds averaging close to 20 mph this morning.. We found fairly nice, smooth riding conditions yesterday up in the Tony Grove Area, with a few inches of moist fresh snow. Not exactly powder though.
|
![]() |
recent activity No new avalanches were reported or observed in the Logan Area this week.. Here's a link to our updated Avalanche List.
|
type | aspect/elevation | characteristics |
---|
![]() |
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() Above 8,500 ft.
7,000-8,500 ft.
5,000-7,000 ft.
|
|
description
Isolated persistent slab avalanches up to around 2 feet deep, failing on weak sugary faceted snow are possible in outlying areas with shallow and poor snow structure. The added weight from this week's drifted snow or seasonal warming might be enough to activate buried dormant weak layers in some areas, and although rather unlikely, dangerous triggered avalanches are a possibility that I must continue to include in this discussion. Whumpfing is a significant red flag indicating potential persistent slab instability. |
type | aspect/elevation | characteristics |
---|
![]() |
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() Above 8,500 ft.
7,000-8,500 ft.
5,000-7,000 ft.
|
|
description
Drifting of the week's fresh snow created heightened wind slab avalanche conditions, mainly at upper elevations, Increasing north winds today will build fresh wind slabs that may be sensitive to your weight.. You could trigger wind slabs or cornice falls in steep drifted upper and mid elevation elevation terrain today. Watch for and avoid stiffer wind deposited snow on the lee side of major ridges and in and around terrain features like sub-ridges, cliff bands, and steep walled gullies. Ridge top cornices might break further back than expected, and cornice falls could trigger more dangerous slab avalanches on steep slopes below.
|
type | aspect/elevation | characteristics |
---|
![]() |
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() Above 8,500 ft.
7,000-8,500 ft.
5,000-7,000 ft.
|
|
description
Temperatures hovered near freezing overnight at many stations, and the snow did not solidly refreeze. Daytime warming and sun this afternoon will continue heightened wet avalanche conditions today, and you could trigger wet avalanches if you venture on steep slopes with saturated surface snow. |
![]() |
weather A little snow is possible this morning, but clouds will part by afternoon, and partly sunny skies are expected. Expect fairly windy conditions, with north winds averaging in the mid twenties along the ridges and gusts of around 40 mph possible. 9000' temperatures are expected to stay a couple degrees below freezing today and should drop into the upper teens tonight. It'll be mild and very sunny tin the mountains tomorrow, with temperatures expected in the mid to upper thirties and light northwest winds... Check out the Logan Mountain Weather page...
|
general annoucements Go to http://www.backcountry.com/utah-avalanche-center to get tickets for Beaver Mountain. You won't save a ton of money, but all proceeds from sales of these tickets will benefit the Utah Avalanche Center, and It's super easy to do. For a printer friendly version of this advisory click HERE Remember your information from the backcountry can save lives. If you see or trigger an avalanche, or see anything else we should know about, please send us your snow and avalanche observations. You can also call us at 801-524-5304 or email by clicking HERE. In the Logan Area you can contact Toby Weed directly at 435-757-7578. I will update this advisory on Monday, Wednesday, Friday, and Saturday mornings by around 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. |