THIS SNOWPACK SUMMARY EXPIRED ON March 25, 2019 @ 8:14 am
Snowpack Summary published on March 23, 2019 @ 8:14 am
Issued by Ryan Lewthwaite -

bottom line:

Todays new snow & wind will help create Wind Slabs on Lee aspects. The developing slabs may be reactive to fracturing from outward influences, including snowmobilers. Use clues from the surface snow & wind to judge where you may encounter this avalanche problem.

Avalanche Character 1: Wind Slab
Wind Slab avalanches release naturally during wind events and can be triggered for up to a week after a wind event. They form in lee and cross-loaded terrain features. Avoid them by sticking to wind sheltered or wind scoured areas.

With increasing Southwest winds today expect slabs to form primarily on NW through SE aspects. Possibly growing to a depth of one foot, expect these slabs to be reactive to fracture initiation until we see ample warming. Avoid cornices & their consequences.

Snowpack Discussion

A refreshment of the surface snowpack has created favorable riding conditions. A few inches has been blown around leaving behind tender Wind Slabs that could be as thick as 12" on Lee aspects. Sunday in the lower elevations you may see rapid warming of the new snow resulting in Loose Wet avalanches. 

CURRENT CONDITIONS Weather observations from Sonora Pass
0600 temperature: 29 deg. F.
Max. temperature in the last 24 hours: 38 deg. F.
Average wind direction during the last 24 hours: Southwest
Average wind speed during the last 24 hours: Light mph
Maximum wind gust in the last 24 hours: Moderate mph
New snowfall in the last 24 hours: 2 inches
Total snow depth: 100 inches
weather

Snow will tapper off this afternoon leaving behind a couple inches. Sunday will be sunny & warm before more weather arrives Monday. Low valley rain & sleet with high elevation snow for the mountains. Winds will pick-up as the storm moves over the region with moderate gusts from the SW. A more potent storm is slated for Tuesday into Wednesday with up to 24" predicted.

Two-Day Mountain Weather Forecast Produced in partnership with the Reno NWS
For 8000 ft. to 10000 ft.
  Saturday Saturday Night Sunday
Weather: Mostly cloudy with snow showers decreasing to partly cloudy with scattered snow showers. Snow Level Below 7000' Clear. Sunny then increasing clouds.
Temperatures: 29 to 39 deg. F. 12 to 18 deg. F. 34 to 44 deg. F.
Wind direction: Southwest West South
Wind speed: 15 to 20 mph; gusts to 35 mph 15 to 20 mph; gusts to 30 mph 15 mph; gusts to 25 mph
Expected snowfall: 1 to 4 in. 0 in. 0 in.
For above 10000 ft.
  Saturday Saturday Night Sunday
Weather: Mostly cloudy with snow showers decreasing to partly cloudy with scattered snow showers. Snow Level Below 7000' Clear Sunny then increasing clouds.
Temperatures: 22 to 28 deg. F. 7 to 12 deg. F. 27 to 33 deg. F.
Wind direction: Southwest West Southwest
Wind speed: 15 to 30 mph; gusts to 40 mph 15 to 25 mph; gusts 40 to 25 mph decreasing 15 to 20 mph; gusts to 30 mph
Expected snowfall: 1 to 4 in. 0 in. 0 in.
Disclaimer

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.