Avalanche

Grand Teton Park, multiple locations

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Observation photo 1Observation photo 2Observation photo 3Observation photo 4Observation photo 5

Quick report

Collapsing
widespread

Teepee Glacier(?), Pesticide Gulch R2D2.5, Mav North Bowl R2D3, Static Basin R4D3, Buck R3D3, above Timberline Lake R3D3 There were more crowns than I have ever seen in single day, from D1 to D3+, all visible on the drive in this morning. Many in terrain traps mid to low elevation. I lost track, but I estimate over 15 noteworthy avalanches.

Weather

Wind Loading
moderate

Most of the 1 meter crowns in the upper elevations had already filled in by 4pm and were no longer visible.

Snowpack

This avalanche on the Maverick, and all of the other observed today seem to have slid on the 1/4 PWL, 70-100cm deep. I got ECTP12, 75cm down on what felt like a temperature crust at 9,500' NE, adjacent to flank. There was an area below the Albright/Static saddle that looked to have stepped down.

Avalanche

Size
D3 R4
Type
SS
Count
5
Aspect
NE
Trigger
N
Elevation
10900 ft

Initiating at 10,000' in steep wind loaded terrain, this large natural avalanche in the North Bowl propagated to the side significantly and ran to the bench at approximately 9,200'