THIS SNOWPACK SUMMARY EXPIRED ON January 29, 2020 @ 8:37 pm
Snowpack Summary published on January 27, 2020 @ 8:37 pm
Issued by Sue Burak - Bridgeport Avalanche Center
Snowpack Discussion

Welcome to the Winter 2020 season at the Bridgeport Winter Recreation Area. We started collecting snow and weather observations in mid-January and continue to dig more snowpits across a variety of slopes and aspects to become familiar with the variety of snow conditions that exist

Yesterday’s 4-5” of new snow does not increase avalanche danger, but creates some additional hazard. Fresh drifts of snow are possible to trigger. These drifts are larger where more snow fell, and will grow today with moderate northwest winds. Be cautious of wind loaded slopes near ridgelines, identifiable by rounded pillows of snow or overhanging cornices. Cracking of the snow surface under your sled is a sign fresh drifts are unstable and to avoid steep wind loaded slopes.

The snowpack in the mid to upper elevations of the BWRA is a checkerboard of wind and stout sun crusts, with a pronounced layer 10-12” deep that marks the old snow surfaces and new snow that fell on Jan 17 and 26. Before yesterday’s storm, several small avalanches that occurred during the Jan 17 storm were still visible and are posted on the observation page.

Weak snow under the 10-12” new snow slab has shown weakness in some snowpit tests on north to east aspects at and above treeline. Watch for areas where the snowpack is thin around rocky outcrops where one could trigger a small slab avalanche. Heavily wind-affected areas where the wind has created a patchwork of scored and loaded slopes are also more likely to be problematic.


CURRENT CONDITIONS Weather observations from Sonora Pass
0600 temperature: 29 deg. F.
Max. temperature in the last 24 hours: 34 deg. F.
Average wind direction during the last 24 hours: Northwest
Average wind speed during the last 24 hours: mph
Maximum wind gust in the last 24 hours: mph
New snowfall in the last 24 hours: inches
Total snow depth: 4-5 inches
Two-Day Mountain Weather Forecast Produced in partnership with the Reno NWS
For 8000 ft. to 10000 ft.
  Monday Monday Night Tuesday
Weather: Mostly cloudy clear partly cloudy
Temperatures: 34-44 deg. F. 28 deg. F. 34-44 deg. F.
Wind direction: SW W SW
Wind speed: 15-20 gusts to 45 10-15 gust to 35 15-20
Expected snowfall: 0 in. in. in.
For above 10000 ft.
  Monday Monday Night Tuesday
Temperatures: deg. F. deg. F. deg. F.
Wind direction:
Wind speed:
Expected snowfall: in. in. in.

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.