Detailed Observation
Date | 2020-02-27 |
Location | Valdez |
Observer | Gareth Brown |
Avalanche | N |
General Observations
2/27: Dimond up to 4700', west – north aspects, clear and calm.
Collapsing: No. Shooting Cracks: No. Avalanches: No. Skied NW aspects up to 40° with no signs of instability.
Found 5 cms of new snow on top of 10-30 cms of 4 finger+ windslab on top of fist hard to 4 finger snow from 2/17 storm down 70 cms. Besides the wind slab near the surface, found a right side up snowpack within the top meter above 2000'. Below a meter deep, poor structure exists, but has been showing signs of improving with time.
Below 2000' found a facet/crust combo down 85 cms that was not reactive on a ECT test. 5 cms of 4 finger facets existed above this crust with 1 finger snow above.
At 3500' NNW aspect pit results produced PST 50/130 END down 130 cms. At 185 cms a layer of 2mm developed facets existed. HS 300 cms
At 4500' found a right side up snow pack in the top meter. Below this multiple weak layers were identified by probing. The first being 110cms down. Small surface hoar was beginning to develop.