In the upper evelvations the snow from the last 48 hours could pose a danger. With 12-20 inches of new snow over the last few days it will be possible to find storm slabs in isolated areas. This new snow is sitting on a well developed crust and could ruin your day if you were to trigger in high consequence terrain.
The new snow combined with winds out of the South-Southeast has formed wind slabs in higher elevation terrain. Similar to the storm slabs, these are going to be isolated but could ruin your day if triggered over cliffs or above a terrain trap.
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It is not very often that an extensive rain event is welcomed, but in the case of the drenching downpour that the West Central Mountains received last week it was a blessing in disguise. The rainfall penetrated our snowpack and saturated the basal facets all the way into the upper elevations. This soaker was followed by a rapid cooling on Wednesday afternoon into Wednesday night. The cold front allowed the for a stout ice crust to form on the snow pack, which caused for poor skiing/riding conditions on Thursday in most areas other than the uppermost elevations.
|0600 temperature:||19 deg. F.|
|Max. temperature in the last 24 hours:||25 deg. F.|
|Average wind direction during the last 24 hours:||SW|
|Average wind speed during the last 24 hours:||7 mph|
|Maximum wind gust in the last 24 hours:||15 mph|
|New snowfall in the last 24 hours:||6 inches|
|Total snow depth:||48 inches|
It is currently snowing lightly in McCall at 5 AM and Brundage Montain picked up 2" overnight. Expect to see a few more inches of new snow fall today before the whopper of precipitation arrives this evening. The National Weather Service has changed the Strom Watch to a Storm Warning for the West Central Mountains. Heavy snowfall is on tap for tonight and especially tomorrow, which should be the quentessential storm day.
This avalanche advisory is provided through a partnership between the Payette National Forest and the Payette Avalanche Center. This advisory covers the West Central Mountains between Hard Butte on the north and Council Mountain on the south. This advisory applies only to backcountry areas outside established ski area boundaries. This advisory describes general avalanche conditions and local variations always occur. This advisory expires at midnight on the posted day unless otherwise noted. The information in this advisory is provided by the USDA Forest Service who is solely responsible for its content.