Observation: Snake Creek

Observation Date
4/14/2018
Observer Name
Joey Dempster
Region
Salt Lake » Snake Creek
Location Name or Route
Snake Creek
Weather
Sky
Few
Weather Comments
Cold this morning again with solid refreeze of low elevation snow that got baked yesterday, but strong April sun quickly made it feel hot despite the cool air temps.
Snow Characteristics
Snow Surface Conditions
Powder
Damp
Snow Characteristics Comments

The cold smoke from Friday was hardly recognizable today, having consolidated down to 8-10 inches of creamy settled powder. It still skied well, but you could feel the underlying crust quite a bit more. I'm not complaining, though!

Red Flags
Red Flags
Rapid Warming
Red Flags Comments
Strong sun this morning heated the surface snow rapidly, causing sluffing around rocks and big roller balls when skiing. Wet loose avalanches can't be far behind now...
Comments

Even though I expected to find more consolidation in the Thurs/Fri snow, I was surpised at how thoroughly the snow had transformed since Friday morning. Even above 9000 feet the snow, which totally lacked cohesion yesterday, had thoroughly bonded with itself, enabling one to cut out and pick up pieces of it, which was utterly impossible 20 hours before. Thankfully, this transformation to a more slab-like consistency, capable of propagating energy, extended all the way to the underlying crust, and the bond to the old snow surface was sufficient to keep the new snow very well behaved again.

The strong sun, however, did create some early warning signs for wet loose avalanches. Large roller balls accompanied everyone in my party as we descended NE facing Eight Ball at about 10am. I'm sure the next several hours cooked the new snow down even further, and I expect a crust to be present on most aspects tomorrow except for the highest elevation N facing.

I would expect tomorrow to be a classic spring day with a good window for skiing in the morning, maybe around 10am, after the crust gets softened but before things get too hot for comfort. With continued warming, at some point, this new snow will become active. It should give plenty of warning before it does so, however, so I'm expecting Low hazard in the morning, with Moderate risk of wet avalanches as the day progresses. Probability of triggering a slab avalanche is Low.

Today's Observed Danger Rating
Moderate
Tomorrows Estimated Danger Rating
Moderate