Snow Report
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7 Day Snow Totals
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24 Hour Snow Totals
Bridger-Teton (Raymer) -- Raymer Study Plot (9,300')
Snow Report for 12/09/2016 05:43
Grand Targhee Snow Totals
3'' in last 24 hrs
38'' total depth
118'' total snow
14 º F
South-Southwesterly @ 18 mph
Bridger-Teton (Rendevous) -- Rendezvous Bowl Plot (9,580')
Snow Report for 12/09/2016 05:43
Grand Targhee Snow Totals
3'' in last 24 hrs
38'' total depth
118'' total snow
14 º F
South-Southwesterly @ 18 mph
JHMR Summit -- Upper-Mountain
Snow Report for December 9th, 2016. 6:00 AM
Grand Targhee Snow Totals
4'' in last 24 hrs
4'' in last 12 hrs
0'' since 6 AM
142'' total snow
JHMR Mid-Mountain -- Mid-Mountain
Snow Report for December 9th, 2016. 6:00 AM
Grand Targhee Snow Totals
4'' in last 24 hrs
4'' in last 12 hrs
0'' since 6 AM
142'' total snow
Grand Targhee -- Mid-Mountain (9200')
Snow Report for Friday Dec 09 8:39 am
Grand Targhee Snow Totals
3'' in last 24 hrs
3'' in last 12 hrs
0'' since 6 AM
48'' total depth
126'' total snow
25°
15 MPH
Avalanche Report
General Avalanche Hazard For 12/09/2016 05:43
MORNINGAFTERNOON
B-T Avalanche Report
Avalanche Danger Scale
Avalanche Advisory
The chance continues for a single backcountry rider or skier to trigger large and dangerous deep persistent slab avalanches at the upper elevations as well as smaller wind slab avalanches at the mid and upper elevations. As new snow and strong winds occur today, these slabs will increase in sensitivity and new shallow soft wind slabs will develop. Avalanches are unlikely at the lower elevations. Careful snowpack evaluation, cautious route finding and conservative decisions are essential for safe travel in avalanche terrain.
Weather Forecast For 12/09/2016 05:43
Light to moderate snowfall is expected throughout the day with heavier snowfall tonight.
Afternoon Discussion For Thu December 08, 2016 5:42 PM
SITUATION
This morning was clear and very cold. Temperatures in the valleys were between twenty and thirty below zero at sunrise. A mid mountain inversion was in effect with the warmest elevation near 8000 feet where temperatures were near minus five degrees. Summits were five to ten degrees colder. Highs today reached the single digits at all elevations. Winds were from the south-southwest with ten to fifteen mile per hour averages. High thin clouds started to move over the area just before noon. This cloud cover increased in thickness and lowered as the afternoon progressed. Localized flurries and light snow had begun to fall just before sunset.

The two to three days of very cold temperatures at all elevation has turned the snow near the surface of the snowpack into small faceted grains. Surface hoar growth has also occurred in some areas. At high elevations on west, north, and east aspects, the snowpack is underlain by a combination of weak snow and hard rain crusts formed in October. Many natural slides involving this deep layer occurred during the recent storm cycle and many other wind slab events also occurred on a density change between the storm's snow and recent lighter snow.


FORECAST FOR Friday, December 09, 2016
A winter storm warning is in effect through Saturday morning. Snow is to develop overnight and continue through Friday and into the weekend. Precipitation will start with cooler temperatures tonight and then be followed with warmer temperatures on Friday with mountain highs in the mid twenties expected. Approximately ten inches of snow is expected to fall by 5pm Friday. Southwest winds with twenty to twenty five mile per hour averages are to occur through this period. Friday evening and night winds are to increase to 25-35 mph averages and snowfall intensity is also to increase.

The general avalanche hazard is expected to remain Considerable above 9000 feet, Moderate from 7500 feet to 9000 feet and Low below 7500 feet. The chance to trigger existing deep slab avalanches and wind slab avalanches with maximum depths to five feet will continue. The avalanche danger is to slowly increase during the day as expected gradual loading increases the sensitivity of these existing slabs and starts to create new wind slabs on existing snow surfaces. The rate and timing of this increase in danger will depend on the actual amount and timing of new snow and wind. Check updated information in Friday's morning advisory.


TREND FOR Saturday, December 10, 2016 AND Sunday, December 11, 2016
The strongest part of the storm with respect to both snowfall and strong southwest to west winds is to occur Friday night into Saturday. Temperatures are to cool during this period of the storm with highs on Saturday in the upper teens. Additional snowfall is expected both Sunday and Monday. The avalanche hazard will increase Saturday and could increase further on Sunday depending on the strength of the storm that day.
Weather Stations
Teton Pass
Elev 8,428 ft
Fri Dec 9 @ 5:50 PM
Weather Station
Temp: Red Line      Wind: Light Gray Area      Wind Gust: Light Blue Area      Wind Dir: Orange Circles
Temp:  N/A   Wind Dir:  N/A   Wind Spd:  N/A
Timeframe:
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Weather Forecasts
Teton Pass
Elev 8,472 ft
Fri Dec 9 @ 4:43 PM
Weather Forecsat
Temp: Red Line      Wind: Light Gray Area      Wind Gust: Light Blue Area      Wind Dir: Orange Circles

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