The Bridgeport Winter Recreation Area is CLOSED for the season. Thank you for all the support & we will see you next winter.
Overnight temperatures staying above freezing has the snowpack in constant melt-out. On all aspects & elevations expect to encounter Loose Wet snow grains that can allow your track or skis to penetrate deep. On steeper slopes this penetration can cause Loose Wet point release avalanches. If enough cohesion exists amongst the Wind Slab deposits a fracture could propagate causing Wet Slab avalanches.
Very large & growing Cornices are easily seen on ridgelines all over the BWRA's alpine zone. With additional loading & rapid warmth these massive collections of snow have been collapsing onto an already unstable pack with the potential to step-down into older layers.
Visibly the snow has been blown around to deposits on N-E aspects having been scoured by strong & moderate winds. These Wind Slabs have been releasing naturally & by human influence on above treeline N-E aspects at a common depth of around 15cm. If enough rapid warming is introduced these dry slabs can become lubricated to the point of failure, avalanching as Wet Slabs, as seen with the Fishes Tooth Bowl avalanche.
Heat, Wind, Sun, & Precipitation are all collectively working to provide us with new avalanches daily. On all aspects & elevations rapid warming from sun & air temperature has the snowpack in constant motion with no refreeze in two nights. The warmth & sun have caused numerous Loose Wet avalanches & is degrading snow bridges. Strong ridgetop winds have cast loose dry snow into Wind Slab deposits above treeline on aspects N-E. Within the recent snowfall a density change, 15cm deep, has been observed as the sliding surface for Wind Slab & Wet Slab avalanche activity. Growing larger each day are the Cornices at ridgeline, some falling & entraining snow for a descent of up to 1000' in the Leavitt Cirque. Expect new snow & rain to effect the snowpack, making it even more reactive to natural & human triggered avalanches.
~4/6 Avalanche activity continues with several new releases observed. Issues at hand are: rapid warming causing Loose Wet, Wind Slabs on N-E aspects, & large Cornices falling.
~4/3 Wet Slab avalanche above the moto-PCT crossing in Fishes Tooth Bowl. Shallow in depth (15cm) but propagated wide across the bowl 2000'.
|0600 temperature:||42 deg. F.|
|Max. temperature in the last 24 hours:||49 deg. F.|
|Average wind direction during the last 24 hours:||West|
|Average wind speed during the last 24 hours:||Moderate mph|
|Maximum wind gust in the last 24 hours:||Strong mph|
|New snowfall in the last 24 hours:||0 inches|
|Total snow depth:||94 inches|
Sunshine & above freezing temperatures for a few days. Overnight temperatures have not been below freezing for two nights in a row, leaving the snow in continuous melt-out. Swirling winds yesterday were moderate to strong in the alpine with blowing snow. The rate of melting has roughly been 2-3" per day with Leavitt Snotel still reading 203"! A cold front pushes its way into our area today with modest precipitation & intense winds. Rain, snow & thunderstorms are all possible.
This snowpack summary applies only to backcountry areas in the Bridgeport Winter Recreation Area. Click here for a map of the area. This snowpack summary describes general avalanche conditions and local variations always occur. This snowpack summary expires in 48 hours unless otherwise noted. The information in this snowpack summary is provided by the USDA Forest Service who is solely responsible for its content.
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