The Bridgeport Winter Recreation Area is CLOSED to Over-the-Snow Vehicles (including Snowmobiles) for the 2018 winter season.
The forecast says we can expect a large amount of snow with the upcoming AR (atmospheric river) event. Thursday through Saturday we could experience a dramatic rise in avalanche danger from this storm in the form of storm slabs. Avoiding avalanche terrain is the best preventative measure.
6-7 natural loose dry avalanches were seen on the 27th with only 3" of new snow. With new snow on the way loose dry avalanches will be happening, whether you like it or not. Slopes over 35 degrees in steepness are to be avoided.
There is a high probability that we will get extreme (gale) force winds with this storm. The potential of 100 mph winds & lots of available new snow for transport will create harder wind slabs & cast them low on slopes. Expect scouring above treeline & deposition at & below treeline. Slabs will be thick, the question is how will they react with the weight of a recreationist.
Shallow snowpack overall still exists in the BWRA. A thin snowpack, more continental, has numerous issues associated with it. Snow, especially thin layered, does not like rapid change over space & time & is more susceptible to having a poor structure than a thick snowpack. The layers of our current snowpack are riddled with unconsolidated facets & solid icy crusts. Yesterday failures below the uppermost crust were showing results at 15cm deep with strong to moderate forces. The addition of new snow & weight to such a structure will create instabilities in the form of large avalanches.
|0600 temperature:||10 deg. F.|
|Max. temperature in the last 24 hours:||26 deg. F.|
|Average wind direction during the last 24 hours:|
|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:||1 inches|
|Total snow depth:||19.7 inches|
~2.5" (6.4cm) new was observed at our intermittent stormboard near the Sonora Pass Snotel site on the morning of 2/27. Very low density snow fell with almost no wind, weird huh.. Was a chilly morning with patchy low-lying cloudy. Any slight breeze or exposure to the sun & the new snow was destroyed or transported. We are anticipating a strong Atmospheric River event with large amounts of snow forecasted through Saturday, hold on.
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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