Details

• Date: 2020/02/25 (Estimated)

• Observer: Brian Roman
• Organization: none

Location

• BC Zone: Front Range
• Area Description: Zero Creek Head Wall

Weather

• Ridgeline Wind Speed: 40+ mph
• Ridgeline Wind Direction: NW
• Wind Loading: Intense
• Temperature: -5 F
• Sky Cover: Scattered
• Depth of New Snow: 2 in
• Depth of Total Snow: 74 in
• Most Significant Precip Rate: S2 - 2 cm/hr
• Weather Description: Monday: snow came in with more wind ridge line guest over 90mph 2in of snow during day with intense transport. Tuesday: wind 25mph guest 35 over night laying down through the day wind chills -30 to -40 above tree line in area.

Snowpack

• Snowpack Description: Zero creek head wall did slide once earlier this year late January. Since then over 7 ft of snow has fallen in zone with over 15 days of strong wind transport.

Avalanches

• Avalanche Description: the hole north side of the bowl went crown is 900-1000 feet long vertical of 500 ft with slide length of 1000+ ft tough to see how far into trees it went. The cornice was really building in area with crown ling steeping back above cornice in a few places. lots of car + size blocks in debris.

	Date	Location/Path	#	Elev	Asp	Type	Trig	SizeR	SizeD
	2020/02/25  †	Berthoud Pass west side	1	>TL	SE	HS	N / u	R3	D2.5
Date: 2020/02/25 (Estimated) Observer: Brian Roman Organization: none Landmark: Berthoud Pass west side Average Slope Angle: 40 ° Maximum Slope Angle: 50 ° Elevation: 11700 ft Sliding Surface: G - At Ground/Ice/Firm Weak Layer: Layer Weak Layer Grain Type: Depth Hoar Average Crown: 94 in Maximum Crown: 180 in Average Width: 900 ft Maximum Width: 1000 ft Average Vertical: 500 ft Maximum Vertical: 600 ft Comments: Cornice Fall Avalanche

Media

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