Very heavy snow and hurricane force winds from the SW will rapidly load NW-N-NE-E-SE facing slopes below, at, and above treeline. Large and destructive natural avalanches, similiar to the ones we saw above Leavitt Lake during the last storm system, will be likely during this storm. Avoid any and all wind loaded slopes and any slope that may be connected to a large avalanche path. Stay away from all avalanche run out zones.
35-50" of snow is expected through Tuesday in the BWRA. Flucuating snow levels will lead to mid-storm density changes and instabilities leading to likely natural and human triggered avalanches. Snow levels are expected to rise to betwen 7500-8000 ft on Monday and will then lower through Tuesday which will lead to a mid-storm upside down snowpack. Avoid all slopes steeper than 30 degrees today and stay away from avalanche run out zones.
A foot of medium density snow fell on Friday afternoon in the BWRA which settled out quickly. There was a report of a snowmobile triggered avalanche above treeline, which broke 50'x50' from a wind slab that formed over a previously sun effected slope. So far this morning, 8" of snow has fallen at both the Sonora Pass and Leavitt Lake SNOTELS, coming down at a rate of 1-2"/hr
**The NWS has issued a winter storm warning for our area valid through 4pm Tuesday**
A very strong atmospheric river event wil impact our area Monday and Tuesday bringing very heavy snowfall with expected totals between 3-5 ft. Lucikly, due to the higher elevation of the BWRA, snow levels will remain below our main forecast zone, peaking around 7500-8000 ft on Monday before falling Monday night. Hurricane force SW winds are expected at near and above treeline Monday leading to whiteout conditions. On Tuesday, snow and winds will begin to taper off by evening and temperatures will drop from the low 30's to teens. Past Tuesday, flow will switch to the NW bringing much colder air and periods of low density snow showers mixed with periods of partly sunny skies.
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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