General Avalanche Hazard : Monday the 20th

  • Current Temps Base NA° Summit NA°
  • SnowFall Last 24 : 0"

  • SnowFall Next 24 : 0

Snow Fall Past 24 Hours

  • Past 24 Snow/Prec. Depth Total
  • Jackson: 0" 115 " 55 "
  • Targhee: 0" 60" 120"
  • Raymer: 0"/ 0.00 47" 113"
  • Rendez: 0"/ 0.00" 55" 115"
  • Joseph: 0"/ 0.00" 51" 99"

Weather Past 24 Hours

  • Past 24 At 10,400
  • 5 AM Temp : 20 º F

  • Max Temp : 20

  • AVG Wind Dir : West-Southwesterly

  • AVG Wind Speed : 18

  • Max Gust : 31

Todays Forecast

Southwesterly to westerly at 15 to 25 miles per hour.

Rising into the mid to upper 20s.

Expect a mix of partly cloudy and mostly sunny skies as high pressure resides over the region.


General Advisory

GENERAL AVALANCHE ADVISORY Moderate hazard is not a green light. At the mid and upper elevations, small to large wind slabs could be triggered by backcountry travelers venturing into steep, wind-loaded avalanche prone terrain. Large triggers, such as snowmobiles, may be needed to initiate these slabs. Although unlikely, the possibility of deeper slabs failing on or stepping down to October snow might remain. Recent precipitation was mainly in the form of rain at the lower elevations, and the shallow snowpack is mostly stable.

Situation

SITUATION A west-northwest flow aloft with a flat high pressure ridge will continue to bring dry conditions to western Wyoming tonight. Skies were partly cloudy in the morning and mostly sunny in the afternoon. Temperatures during the past 24 hours at 10,000 feet have warmed from around 10 degrees into the 20s. Winds have been west to southwest at 10 to 20 with gusts to 30 miles per hour. The recent new snow continues to settle. Cold clear nights are causing the growth of surface hoar. A large slab avalanche that released naturally on a north aspect of Breccia Peak in the Togwotee Pass area was reported to the avalanche center. Details and a photograph are posted in the avalanche events section of our website.

FORECAST FOR Monday, November 20, 2017 Pacific moisture in a southwest flow will move into the region on Monday. This system will begin with snow in the mountains and a mix of rain and snow at the lower elevations. The general avalanche hazard is expected to be MODERATE above an elevation of 9,000 feet and LOW below that elevation. At the upper elevations pockets of wind slab 6 to 18 inches in depth could be triggered skiers or riders in very steep, wind loaded avalanche starting zones, steep couloirs and cliff areas. Deeper slabs with depths to three feet could be human triggered in isolated terrain features, especially by larger triggers such as snow machines.

TREND FOR Tuesday, November 21, 2017 AND Wednesday, November 22, 2017 The freezing level could rise to an elevation of 9,500 feet by Wednesday. A rain on snow event would increase the avalanche hazard.

Weather Station Data

Snow Report Phone Numbers

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Data Provided by :http://www.jhavalanche.org | http://www.jacksonhole.com

Last Update : November 20 2017 3:42:20 AM

Page Cache: November 20 2017 5:37:05 AM

We do not guarantee the accuracy of any of this information. This site is just a tool to help you make better decisions in the mountains. If you have a suggestion about how to make this site better email me.

Teton Pass ( Click to Zoom )

Top of Gondi

Base Area

Tram Line

Grand Targhee

Weather Station Data

Snow Report Phone Numbers

Emergency Phone Numbers

Page Cache: November 20 2017 5:37:05 AM

We do not guarantee the accuracy of any of this information. This site is just a tool to help you make better decisions in the mountains. If you have a suggestion about how to make this site better email me.

Radar Images ( Click to zoom )





Forecast Data from http://www.noaa.gov/

Weather Station Data

Snow Report Phone Numbers

Emergency Phone Numbers

We do not guarantee the accuracy of any of this information. This site is just a tool to help you make better decisions in the mountains. If you have a suggestion about how to make this site better email me.