| Trigger | Natural | Remote Trigger | 0 |
| Avalanche Type | Wet Loose Snow | Aspect | South |
| Elevation | unknown | Slope Angle | unknown |
| Crown Depth | unknown | Width | unknown |
| Vertical Run | unknown |
Avalanche: Turnagain
Location: Sunburst
Toured up the standard West Ridge to 3700′ late afternoon to look at how the sun was warming the snow surface. Temperatures were in the mid 40s F in the upper elevations. Numerous wet loose avalanches were seen in very steep South facing terrain of the Library and Tincan Proper. Some rollerball were seen on SE and SW aspects near rocks and some ski tracks. We descended Sunburst SW face at 4:30pm and found 1cm moist surface snow that became a 1cm crust as soon as you hit the shade line. In Taylor Creek, lower angle terrain the surface snow was still dry.
Observer Comments
Wet loose avalanches on steep South aspects, especially in terrain with rocks.
Weather
Sunny and clear
Sunburst wx station reached 47F at 4pm
Road level 30s F
Calms winds
No Precip
Snow surface
5-6" dry snow (near surface facets) on West and North aspects
Wet surface snow on steep due South aspects
Moist surface snow (~1cm) on 30+ degree SW aspects by 3pm, was previously dry. Quickly formed a crust as soon as it was shaded.
Snowpack
Dug a test pit at 3700', SW aspect, HS=<320cm, Pit height= 115cm, 34* slope
CT13x2, ECTN15 failed 20cm below surface on .5mm facets/decomposing fragments
Didn't find the MLK layer within the top 115cm
The steep South facing terrain on Tincan Proper and the Library saw a fair number of wet loose avalanches. Some of these may have been from Monday, but we did see one in motion at 3:30pm.
Pit at 3700' on SW facing slope of Sunburst.
Rollerballs on our ski turns on SW face of Sunburst at 4:30pm. As soon as we hit the shade line 2/3 of the way down, 1cm crust was present.
A few roller balls and point releases under rocks were seen on SE aspect of Seattle
Hard to see, but there's a small glide crack in the center of this photo, SE facing gully of Seattle
Cornice fall in terrain at the back of Center Creek. It looked old, may be from wind event last week.
Terrain with more of direct West aspects like Magnum's West face still had dry soft snow at end of day, unlike SW facing slopes of Sunburst.
New wet loose debris observed in steep South facing terrain on a 4000' peak between Portage Valley and Twenty mile