Strong winds gusting out of the South, Southwest upwards of 43 MPH have been pushing 6-12" of new snow into North, and North East aspects creating fresh wind slab hazard. Older wind slabs may still be found on all aspects.
Pockets of buried surface hoar may exist in areas that were protected fron the wind. Brief cold clear conditions this past week have formed surface hoar that has been buried at two depths under a foot of snow. The Surface Hoar crystals that we noticed yesterday in a pit outside Tamarack, in Wildwood bowl came out in our stability test, after noticing it with the bare eye. The new snow, andwarmer temperaturesover the next 24 hours should help stabilize/ breakdown the buried surface hoar.
Up to 2 feet of new snow is going to fall by the end of this winter storm warning this evening. The snow over the last 24 hours has come in quite a bit warmer, and heavier. This snow will be challenged to bond to the older cold snow, and we may see some upside down, punchy, dangerous conditions today?
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.