TETON AREA FORECAST

Issued at 02/21/2019 06:20   Valid until: 02/21/2019 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
Rendezvous Summit -6 º F 7 West-Northwesterly 11 30
Temperature & Wind Graphs Summit 48 Hr Wind Graph
Location Elevation Snowfall/Prec. Total Snow Depth Total Snowfall
Raymer Plot 9,300' 3"/ 0.07" 98" 374"
Rendezvous Bowl Plot 9,580' 3"/ 0.14" 99" 390"
Chief Joseph Plot 8,800' 4"/ 0.26" 107" 347"
Mountain Weather Forecast for Today
Skies will be mostly to partly sunny.
Temperature forecast for 8,000 - 9,000  
Temperatures will rise into the teens
Ridge Top Wind Forecast for 10,000´
Winds will be from the east at 5 to 15 miles per hour with higher gusts.
Snowfall Expected Next 24 Hours
Trace
AVALANCHE DANGER MORNING AFTERNOON
Teton Area avalanche hazard rating for 02/21/2019
General Avalanche Advisory
Humans who venture onto steep avalanche prone slopes could trigger slab avalanches. These slabs could release in wind loaded areas, involving snow from the recent storm cycle or they could fail on deeper weaknesses, involving faceted snow that formed during dry periods earlier in the season. Identify and avoid steep, wind loaded terrain features and evaluate the snowpack carefully to determine where old weaknesses still pose a threat.

Today's Avalanche Problems

Wind Slab

ASPECT/ELEVATION
Avalanche problem rose
CHARACTERISTICS
LIKELIHOOD
Certain
Very Likely
Likely
Possible
Unlikely
SIZE
Historic
Very Large
Large
Small
TREND
Steady trend

DESCRIPTION

Surface slabs formed during the most recent storm cycle continue to be a potential hazard on steep, wind-loaded slopes at the mid and upper elevations. These slabs could be triggered by the presence of a single person and could be one to three feet deep.

Persistent Slab

ASPECT/ELEVATION
Avalanche problem rose
CHARACTERISTICS
LIKELIHOOD
Certain
Very Likely
Likely
Possible
Unlikely
SIZE
Historic
Very Large
Large
Small
TREND
Steady trend

DESCRIPTION

In steep terrain some potential may remain for persistent slabs to be triggered by humans on buried layers of faceted snow. These slabs could possibly be triggered by a single person who hits a particularly weak spot on a slope, by a heavier trigger such as a snowmachine or following the initiation of a wind slab. These large to very large slab avalanches could be 3 to 5 feet deep at the mid and upper elevations or one to three feet deep at the lower elevations.
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