Above 2,500ft Low
1,500 to 2,500ft Low
Below 1,500ft Low
Degrees of Avalanche Danger ?
Below treeline the snow is frozen hard. Above 3,500′, there is around 4″ of recent snow on top of a frozen-solid rain crust (around 2″ thick). There will be pockets of MODERATE danger on wind loaded slopes above 3,500′.
Problem #1: Wind Slab
Location: Wind loaded slopes and cross-loaded terrain features/gullies, above 3,500ft. The upper layer of snowpack contains enough soft snow to make for good riding in protected areas. This softer snow is now wind affected in many areas, with moderate north winds whipping it around into recent wind slabs. This will especially be true on high and exposed slopes, and around ridgelines and summits. It will be possible to trigger wind slabs in this new snow anywhere it is blown in deeper than a few inches. Test slopes and hand shears will be helpful as you judge the danger from slope to slope. Avoid areas of cohesive wind slab.
Stick to areas where the top layer of snow is still soft and protected. Always practice good travel techniques, utilizing safe zones, escape routes, only exposing one person at a time to slopes over 30 degrees.
Recent Avalanche Activity
No new activity has been observed since the hard rain on the 16th.
A little burst of snowfall is likely Wednesday night, with 1-3″ falling. Otherwise, expect mostly cloudy skies, continued cold weather and light-moderate outflow winds.
|Snow Depth [in]||Last 24-hr Snow/SWE [in]||Last 3-days Snow/SWE [in]||Today’s Freezing Level [ft]||Today’s Winds||Next 24-hr Snow/SWE|
Mount Ripinsky @ treeline
|38″*||4″ / 0.40*||4″ / 0.40||0||mod, N||0″/ 0.00 *|
Flower Mountain @ treeline
|32″||4″ / 0.40||4″ / 0.40||0||light, NW||0″/ 0.00 *|
Chilkat Pass @ 3,500ft
|20″*||2″ / 0.20 *||2″ / 0.20 *||0||light, NW||0″/ 0.00 *|
( *star means meteorological estimate )
Additional Info & Media
If you get out on the snow, send in your observations!
We will be providing an AIARE Avalanche Level 1 Class this winter in Haines, February 23-25, 2018