Leavitt Pre-Storm Conditions

Location Name: 
Leavitt Lake/Ski Lake Bench
Region: 
BWRA
Date and time of observation: 
Fri, 02/01/2019 - 11:00
Location Map: 



Observation made by: Avalanche Specialist
Snowpit Observations
More detailed information about the snowpack: 

Quick AM trip up to Leavitt Lake to survey the pre-storm snow surface.  We had another solid refreeze overnight.  All aspects below 9K were sporting some variety of temperature crust: closer to "zipper" on mid elevation northerly aspects and breakable-approaching-supportable on southerly aspects with prolonged sun exposure.  Northerly aspects above 9K had a slight breakable temperature crust only in proximity to trees.  

A snow profile above Leavitt Lake on a NW aspect at 9900' displayed a deep, stable snowpack.  There was surface hoar in this location however it was being scattered by the wind throughout the morning.  No other intact surface hoar was noted during our travels, but we remained mostly on the road corridor.  

The minimal, loose, surface snow still available for transport was on the move throughout the late morning with increasing gusty winds from the SW.  

1: Scattered surface hoar above Leavitt Lake

2: Accessible slopes have more tracked than untracked snow after our prolonged dry spell.  

3. Plumes of airborn snow in upper Leavitt

Snowpit or crown profile photo or graph: 
Weather Observations
Blowing Snow: 
Yes
Cloud Cover: 
50% of the sky covered by clouds
Wind Speed: 
Moderate
Precipitation: 
None
Air temperature trend: 
Warming
Wind Direction: 
Southwest
Accumulation rate: 
None
More detailed information about the weather: 

Moderate gusty winds at treeline and stronger winds observed at ridgetops were increasing throughout the morning.  They appeared to be primarity out of the SW but direction varied lower in the drainage.  It was a beautiful day otherwise with partly sunny skies and good visibility.