02/09/2020
Snowpack Summary February 8, 2020
Posted by Allen Giernet @ 8:17 am
This summary applies to backcountry areas only. The Bottom Line -
The avalanche concern remains low at this time while we wait for more snow through an extended dry spell. Continued warming into today will bring a chance of Loose Wet avalanche activity on solar effected slopes where there is still snow. Most of our Southern aspects have been melted out. With the approaching cut off low expected Sunday things could change. The amount of snow is highly variable due to the nature of the storm. But with current forecast predicting 6”/ 15cm to 9”/ 22.5cm accumulation, along with strong Northeasterly winds through Monday our Concern will be the development of wind slab avalanches. These will develop on Southwestern aspects but are mainly going to be building on bare ground and recent storm snow. Topographical influences will bring the possibility of these developing in other aspects especially gullies and below ridgelines where snow does still exist. Be on the lookout for signs of transported snow, wind scouring, blowing snow, pillowing and firm snow surfaces where drifted snow has accumulated. The other concern will be storm snow due to the current wind scoured and melt freeze crust surface of the majority of our snowpack. This will produce poor bonding with the cold nature of the storm coming in. Monday morning and into Tuesday we can anticipate the development of loose snow and storm slab avalanches on the Northern aspects and the sheltered locations that still have snow. This will all depend upon the track of the storm and how much moisture it picks up on it’s way.
Fast firm conditions with slide for life scenarios remain the biggest concern into Sunday. Even into next week these conditions will be possible with a dust on crust to a few inches of snow on a firm icy base. Be prepared with proper equipment (ice axe and crampons) and know how to use them. A slip and fall can lead to a slide for life situation, these are the most common incidents we have in our local mountains. Choose your approaches accordingly. Visit http://www.socalsnow.org/ link In profile