Avalanche forecast

Tetons

Bridger-Teton Avalanche Center
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Avalanche danger

Alpine
3 · Considerable
Treeline
2 · Moderate
Below
1 · Low
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Highlights

The avalanche danger is Moderate at the mid and upper elevations this morning. The danger will rise to Considerable in the upper elevations late in the day. New snow and wind has formed slabs that will become increasingly sensitive to human triggers today. With more snow expected along with increasing temperatures, expect slabs to become easily triggered in steep terrain. While natural avalanches are less likely, it will be important to pay attention to changing conditions and assess the new snow for signs of instability. Recent avalanches, shooting cracks and whoompfing are clear indicators that it is time to choose more conservative terrain. In the low elevations avalanches are unlikely and the danger will be Low.**Special Statement**Grand Targhee Resort will be closed to all uphill traffic until Thursday April 14th, as the resort performs end of season operations.

Avalanche problems

  • Wind Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Likely
    Size
    1–2

    New snow amounts over the last 24 hours range from 6-10”. Snow densities are light, in the 6-8% range. New snow amounts during the day today will be in the 3-5” range and be higher in density. This will help to create “upside down” conditions and make triggering more likely as the new snow accumulates. Moderate south and southwest winds will help to build slabs up to 2 feet in depth in the upper elevations. Be on the lookout for signs of recent loading and expect avalanche activity to be on the increase as the day progresses.

Avalanche Discussion

Snow will continue overnight and into tomorrow. Additional accumulation overnight will be 3-5” in the Tetons, 2-4” on Togwotee and 3-5” in the Southwest Trails forecast areas. Winds will be out of the southwest and west with average speeds ranging from 15-25 mph. Overnight temperatures will drop into the single digits at ridgetops, low teens at 8,000-9,0000 feet and high teens in the valleys. Daytime high temps tomorrow will be in the high teens to low twenties between 8,000-9,000 feet. Snowfall will continue during the day with another 3-5” expected across all forecast areas.As snow continues to accumulate and winds move the new snow around, slabs will continue to build. Tomorrow it will be possible to trigger avalanches in steep wind loaded terrain throughout the day in all three forecast areas. This problem will be more pronounced in the higher elevations of the Tetons and Southwest Trails areas, where more snow has accumulated. In those areas the danger will remain Considerable. In the higher elevations of the Togwotee Pass forecast area, where less snow has accumulated, the danger will be Moderate. In the lower elevations avalanches will remain unlikely as less snow has fallen. There the danger will remain Low.

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