Gulf of Slides, widespread firm wind slab
By Ryan Matz | MWAC Forecaster
Date of Observation: January 7, 2019 11:00 AM
Location of Observation: Gulf of Slides, gully #1
Varying hardness (1F-4F) new wind slab, relatively smooth and consistent except in upper portions of terrain where scouring occurred. With incoming snow and wind, it’s worth noting this widespread smooth and firm nature as a potential avalanche bed surface. Smooth wind slab can be found in Tuckerman and Huntington ravine but is less widespread.
This firm surface slab is over a layer of softer snow, and does produce easy small column test results. However, and extended column test score of ECTP13+3 taps, propagating across the column in three taps, indicates a potentially stubborn nature of these slabs that was similarly supported by minimal cracking under skis. It’s worth considering these currently new slabs that will likely be beneath newer yet slabs in a few days in assessing potential size of avalanches later this week.