Issued at 03/04/2021 06:27   Valid until: 03/04/2021 23:59

CURRENT CONDITIONS (Mountain Weather Past 24 Hours)
At 10,400' Elevation 5 AM Temp Max Temp Avg Wind Dir Avg. Wind Speed Max Wind Gust
Lava 23 º F 31 South-Southwesterly 5 16
View Temperature and Wind Graphs View Lava 48 Hr Wind Graph
Location Elevation Snowfall/Prec. Total Snow Depth Total Snowfall
Togwotee Snotel 9,570' 0"/ 0.00 68" 238"
Brooks Lake Lodge 9,300' 0"/ 0.00" 56" 192"
Togwotee Lodge 8,300' 0"/ 0.00" 65" 203"
Mountain Weather Forecast for Today
A low-pressure system passing to the south may bring partly cloudy skies through this morning and cloud cover is expected to decrease in the afternoon.
Temperature forecast for 8,000 - 9,000  
This morning’s inverted temperatures have valleys 15 to 20 degrees cooler than the mountains. The inversion is expected to break mid-day, and mountains will warm into the upper 30s.
Ridge Top Wind Forecast for 10,000´
Light and variable
Snowfall Expected Next 24 Hours
General Avalanche Advisory
As temperatures rise above freezing and snow surfaces melt, the snow could quickly transition from stable to unstable, and wet slab avalanches will be possible. Although the warming temperatures will increase the potential for triggering an avalanche, conditions are dangerous, and a person could trigger a large to very large slab avalanche, any time during the day, which will likely have deadly consequences. As sunlight and rising temperatures further weaken these slabs, they will become more sensitive and could release naturally. Below 8000 feet, avalanches are still possible but are expected to be much smaller. Conservative decision-making is essential today, and remember that even small slides can be enough to bury or kill someone.

Today's Avalanche Problems

Persistent Deep Slab

Avalanche problem rose
Very Likely
Very Large
Increasing trend


Poor snowpack structure is widespread on Togwotee Pass, and backcountry travelers could easily trigger destructive slab avalanches on a variety of aspects and elevations. Daytime warming will increase the likelihood of triggering these slabs in sunlit terrain, and natural activity will be possible as temperatures heat up. Slab depths are likely to range between 4 and 8 feet above 8000 feet and 2 to 4 feet below 8000 feet. Use caution and remember that previous tracks are NOT a sign of stability.
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