Avalanche

Harts Pass Zone

Adam ButterfieldEast Slopes North
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Quick report

Most notable obs were the preserved surface hoar, and then the following wind event on Saturday (2/21). Curious how this will react with the Mondays storm.

Some whumping on patchy crossloaded terrain on windward slopes.

Weather

Partially cloudy with very cold temps and light winds until Saturday.

Snowpack

Visible surface hoar on most surfaces (wednesday 2/18). Measured 6mm at ridgetop and 15mm at valley bottom. This got buried by 3-4cm of new snow on Thursday night followed by a wind event Saturday (2/21). The surface hoar layer seems patchy after saturdays wind event, with scoured surfaces on Eastern and Southern slopes prior to mondays storm but possibly still preserved on polar aspects.

Avalanche

Got a small D1 wind slab to go on a crossloaded terrain feature Sunday on a NE aspect around 6500'