Snowpack Summary for 4/28/2017

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Updated: Friday, April 28, 2017 9:52 PM   ·   Issued: Friday, April 28, 2017 9:30 PM
Observer: Gabe Coler

Bottom Line

This will be our last Summary of the year, and April will wrap up our formal Professional Observations. Current conditions reflect the typical spring avalanche problems in the mountains. With no new precipitation going into the weekend, and warmer temperatures with sun tomorrow, our avalanche problems are Loose Wet and Wet Slab avalanches. These are likely to be our principal problems as we get more sunny days with high temperatures above freezing.

That being said, it is not unusual for us to get significant snow storms during these months, and as this happens we'll have a short switch back to the Storm Slabs and Wind Slabs that often accompany such weather.

The cornices are going to fall off. Don't be under or on them when they do.

Recent Activity

Aaron and Jonas both reported Wind Slab activity on Wednesday. It sounded as if there also may have been some from Thursday's precipitation with a crown spotted on South Sister.

Snowpack Discussion

Conditions this morning seemed pretty uniform across our region with some new snow over a supportable crust. Clear weather today likely will melt and refreeze the surface of all aspects except perhaps straight north. Being on the right aspect at the right time will be the key to good skiing and avoiding the Wet avalanche problems.

The upper snowpack is a mix of new snow from this week's storms, crusts, and older melt forms. There are no persistent weak layers in our current snow pack. I haven't been able to probe to the ground for quite a while which means there's a ton of snow in the mountains. Happy Skiing late into the season!



DISCLAIMER: This snowpack summary describes general backcountry conditions and local variations always occur.