Winds over the last 2 weeks have done a great job adding snow to almost all aspects. We found good sized cornices on a SE facing slope yesterday on Bruin Mountain as well as signs of windloading on multiple aspects. While most of these slabs have settled out over the last few days, it is possible that a skier or rider may be able to trigger either a shallow or older deeper windslab on Northerly terrain where most of the recently windblown snow landed. SW winds will be adding fresh windslabs to the problem today and will then shift to the W overnight. Over the next few days, watch for new windslab growth on NE and E aspects.
Slopes that did not see direct sun yesterday were holding plenty of cold snow yesterday. Temperatures today will preserve that cold snow and add a little more depth to it through the day. Sluffs should be anticipated and managed if you are skiing in steeper terrain and especially if you are in confined or consequential terrain that would concentrate sluffing or push you over or into obstacles below.
We toured through upper Little French Creek and got a good look at a lot of steep terrain yesterday. Snowmobiling off trail in the morning was practically as good as it gets with plenty of light dry snow billowing over the hood. The big story was the sun and its effects on the snow. By late morning, SE and S slopes were beginning to get warm and the surface snow was beginning to move in the form of decent sized loose, wet avalanches and small point releases of loose, dry snow on the shadier aspects. By late afternoon, clouds were reclaiming the sky and the snow began to settle and refreeze. It will likely be a mixed bag of conditions today unless you are getting to the true Northerly aspects or possibly West aspects that missed the worst of the sun. We also saw several older and partially buried crowns that were probably approaching 3 feet when they happened on N and NE aspects leftover from last week's windy storms.
Remember your information can save lives. If you see anything we should know about, let us know by clicking the OBSERVATION tab at the top of the page. Or by calling/emailing PAC forecasters at 208-634-0419 or firstname.lastname@example.org.
If you are getting out and enjoying any spring skiing/riding we would like to know. What did you see, how was the snow? Any information is good information!
Today is the beginning of the next round of storms that will continue through tomorrow night. Falling temperatures and increasing SW and W winds will accompany the storms. Weather models are not showing a lot of potential precipitation with these storms but the Northern portion of the West Central will be favored again. Between .5 and .7 inches of liquid precip is expected which should be 5-9 inches of snow in the upper elevations. Winds will be steady in the upper teens with gusts getting close to 30 today and tonight.
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.