Valanga

Tuckerman Ravine Floor

MARK P RENSONPresidential Range
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Foto dell’osservazione 1Foto dell’osservazione 2Foto dell’osservazione 3Foto dell’osservazione 4Foto dell’osservazione 5Foto dell’osservazione 6Foto dell’osservazione 7Foto dell’osservazione 8

Quick report

Nothing noteworthy in addition to above. In a 123cm snowpack, CTN. I performed a Deep Tap test; these tests are done for testing instabilities below the top 100cm. I wanted to test the 20241126 MF/ZR crust that was 69cm down so I in effect applied a Deep Tap test by removing snow down to 84cm and tapping away. I got a DTM Score 12 that was a surface planar result.

Weather

Air Temp
14
Cloud Cover
overcast
Wind Loading
none
Recent Snowfall
40
Snow Avail For Transport
moderate amounts

Winds were sporadic up to Moderate from West. Cloudy with fog hence visibility was somewhat limited.

Snowpack

Boot Pen 40cm. Snowpack there had HS 123cm. 123 to 110cm was P hard; 110 to 54cm was 4F to 1F; 54 to 51cm was K; 51 to bottom P hard. Snow temps as follows starting at top all in Celsius: TSurf-10.0 123cm 110 cm -9.0 100 cm -8.0 90 cm -7.0 80 cm -6.0 70cm -5.0 60 cm -4.0 50 cm -3.0 40 cm -2.0 30 cm -1.5 20 cm -1.0 Skier reported 160cm HS bt Center Headwall and Peter Winn Gully Skier reported 130cm HS in Left Gully

Avalanche

Climbers ascending Center Headwall reported some 25cm crowns halfway up. Mini refrigerator sized blocks at base of Open Book from Chicken Rock Gully.