Details

• Date: 2019/04/25

• Observer: Jeff Grabham
• Organization: Public

Location

• BC Zone: Vail & Summit County
• Area Description: North facing chute on Northstar. Just east of Northstar summiit

Weather

• Weather Description: 25-30F, FEW sky, winds gusting approximately 15-25 mph from the NW on the ridge line. Calm winds below 12,000'. Our attempted line was NE facing 35-40 deg.

Snowpack

• Snowpack Description: Wind affected north facing couloir with obvious wind loaded pockets. No pits were dug or other avalanches noted in the immediate area.

Avalanches

• Avalanche Description: Our first cut into a north facing couloir at approximately 13,200" popped a small, isolated wind pocket averaging 8" deep and 200' wide (full width of the path). This pocket stepped down another 4-6" and ran to the valley floor. The aforementioned pocket took a member of our party for a 50' ride, where he self arrested as the avalanche flushed around him. It could be classified HS-R1-D1--NNE-I-ASc. The avalanche gathered more snow as it flushed and would have certainly been D2 by mid path, however this was not entirely visible to the party.

	Date	Location/Path	#	Elev	Asp	Type	Trig	SizeR	SizeD
	2019/04/25  †		1	>TL	N	SS	AS / c	R1	D2
Date: 2019/04/25 (Estimated) Observer: Jeff Grabham Organization: Public Sliding Surface: I - New/Old Interface Maximum Crown: 30 cm Maximum Width: 60 m

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