Daily Winter Weather Report
Date: Saturday - 02 March 2013
|Yellowstone National Park Winter Weather Links|
|Avalanche Advisory||Special Weather Info|
|Daily Winter Weather Report||Winter Road Report|
|Snow Depth Totals||Yellowstone Weather Forecast|
|Station||Pres Temp||Max Temp||Min Temp||New Snow||Depth||Sky||Present Conditions|
|Mammoth||29.7||32.0||29.0||0||9||OC||WSW @ 3 - 4 mph|
|Old Faithful||30.1||30.1||27.0||0||25||OC||SSW @ 1 - 3 mph|
|Thorofare||25.0||25.0||23.0||.01||OC||NW @ 3 - 8 mph|
|Tower||24.7||30.5||24.7||.01||OC||NW @ 1 mph|
* * Live Weather via All Yellowstone WebCams * *
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|Road Section||Status||Conditions||Public Access / Info|
|Gardiner, MT to Mammoth||Open *||Good||STA - Not Maintained from 4:30 PM to 6:00 AM|
|Mammoth to Tower||Open *||Snow Packed/Icy||STA - Not Maintained from 4:30 PM to 6:00 AM|
|Tower to NE Entrance||Open *||Snow Packed/Icy||STA - Not Maintained from 4:30 PM to 6:00 AM|
|Beartooth Highway ♦||CLOSED ♦||CLOSED ♦||CLOSED ♦|
|Canyon to Lake||Open||Fair||Rubber tracked oversnow concession vehicles|
|Canyon to Tower ♦||CLOSED ♦||CLOSED ♦||CLOSED ♦ (over Dunraven Pass)|
|Grant to South Entrance||Open||Fair||Rubber tracked oversnow concession vehicles|
|Junction to Chief Joseph Hwy ♦||CLOSED ♦||CLOSED ♦||CLOSED ♦|
|Lake to East Entrance||Open||Fair||Rubber tracked oversnow concession vehicles|
|Lake to West Thumb||Open||Fair||Rubber tracked oversnow concession vehicles|
|Madison to Old Faithful||Open||Fair||Rubber tracked oversnow concession vehicles|
|Madison to West Yellowstone||Open||Fair||Rubber tracked oversnow concession vehicles|
|Mammoth to Norris||Open||Fair||Rubber tracked oversnow concession vehicles|
|Norris to Canyon||Open||Fair||Rubber tracked oversnow concession vehicles|
|Norris to Madison||Open||Fair||Rubber tracked oversnow concession vehicles|
|Old Faithful to Grant||Open||Fair||Rubber tracked oversnow concession vehicles|
* = Open year-round to wheeled vehicle travel.
NR=No Restrictions / STA=Snow Tires Advised / STR=Snow Tires Required
♦ = CLOSED FOR THE WINTER SEASON
The park service plowing schedule for roads for the spring season.
******** FOR CURRENT ROAD INFORMATION PLEASE CALL 307-344-2117 ********
|¤ ¤ - Please Note - ¤ ¤||There is NO wheeled vehicle travel East of Cooke City, Montana during the winter. This road (U.S. Highway 212), is Closed to Wheeled Vehicle Travel to the East as it is NOT plowed or maintained until late spring. In order to exit Silver Gate, Montana, or Cooke City, Montana, and Yellowstone, you must travel West back through Yellowstone to the North Entrance at Gardiner, Montana to exit the park and these towns.|
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Caution advised for snow falling off of building roofs. Park accordingly.
Dangerous avalanche conditions may already exist in many back country areas, please call the Recorded Avalanche Advisory 406-587-6981 for the most current conditions. Also, see the Avalanche Advisory posted below.
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by the National Weather Service Riverton, Wyoming
Today: Partly cloudy. Highs 34°F to 40°F.
Tonight: Cloudy. Scattered snow showers after midnight. Southwest winds around 15 mph. Chance of snow 50 percent. Lows 21°F to 27°F.
Sunday: Breezy. Snow showers. Snow accumulation of 3 to 5 inches. West winds 15 to 20 mph. Chance of snow 80 percent. Highs 29°F to 35°F.
Sunday Night: Breezy...colder. Cloudy with snow showers likely. Snow accumulation of 2 to 3 inches. Total snow accumulation 5 to 8 inches. West winds 15 to 20 mph. Chance of snow 60 percent. Lows 4°F to 10°F.
Monday: Mostly cloudy in the morning then becoming partly cloudy. A 30 percent chance of snow showers. West winds around 15 mph. Highs 21°F to 27°F.
Monday Night: Mostly clear. Lows 3°F to 9°F.
Tuesday: Not as cold. Mostly sunny. Highs 30°F to 36°F.
Tuesday Night: Mostly clear in the evening then becoming partly cloudy. Lows 14°F to 20°F.
Wednesday: Mostly cloudy. Chance of snow in the morning...then chance of snow...possibly mixed with rain in the afternoon. Chance of precipitation 30 percent. Highs 32°F to 38°F.
Wednesday Night: Mostly cloudy with a 40 percent chance of snow. Lows 14°F to 20°F.
Thursday: Cloudy with a 40 percent chance of snow. Highs 26°F to 32°F.
Thursday Night: Cloudy with a 30 percent chance of snow. Lows 12°F to 18°F.
Friday: Cloudy in the morning then becoming partly cloudy. A 30 percent chance of snow. Highs 26°F to 32°F.
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|* * * Snow Depth Totals as reported at SNOTELs * * *|
|Station||Depth (inches)||Station||Depth (inches)|
|Black Bear||93||Parker Peak||60|
|Evening Star||65||Sylvan Road||30|
|Fisher Creek||78||Thumb Divide||45|
|Grassy Lake||73||Two Ocean Plateau||67|
|Lewis Lake Divide||70||West Yellowstone||29|
|Madison Plateau||60||Whiskey Creek||38|
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from the Gallatin National Forest Avalanche Center - March 02, 2013 - this report is by Mark Staples. This advisory Does Not Apply to operating ski areas.
Yesterday about an inch of snow fell near Cooke City and West Yellowstone. This morning temperatures were in the high 20s Fahrenheit with winds blowing 15 mph from the West and gusting to 20 mph. Yesterday in the mountains near Bozeman, winds were blowing 20 to 40 mph. Today will be a mix of clouds and sun. High temperatures will be in the 30s Fahrenheit and may reach the 40s in places. Winds will increase slightly and shift to the Southwest bringing snow tonight. By Sunday morning several inches will have fallen with more to come throughout the day.
Snowpack and Avalanche Discussion:
Bridger, Gallatin, and Madison Ranges, Lionhead Area near West Yellowstone, and Cooke City:
Stability is neither really good nor really bad. The reason for heightened avalanche conditions in some terrain is the presence of faceted layers in the upper 3 feet of the snowpack. Also, recent strong winds, especially in the Bridger Range, formed fresh wind slabs. Warm temperatures will help these wind slabs stabilize and make them more difficult to trigger.
The reason conditions are not really bad is that regular and light snowfall has gradually buried these faceted layers without stressing them too much. However, snowfall this Sunday could push them closer to their breaking point. Stable slopes definitely exist as skiers found in the upper bowls of Hyalite on Thursday, but recent avalanches continue to remind us that unstable slopes also exist.
What to do? Dig about 3 feet deep in several different places and conduct several stability tests. Be especially wary of any snowpack with a total depth of 3 to 4 feet (about a ski pole length). In these places very weak facets usually exist near the ground and could produce an avalanche like one Eric and I investigated on Thursday (photo) on Mount Wheeler. Lastly, look for fresh wind slabs and don't trust them. Today human triggered avalanches remain possible and the Avalanche Danger is rated MODERATE.
The next advisory tomorrow morning at 7:30 AM. If you have any snowpack or avalanche observations, drop us a line at email@example.com or call us at: 406-587-6984.
EDUCATION, PHOTOS, SNOWPITS, and VIDEOS
1. For links to Articles, Education and (photos), (snowpits), or (videos) listed in the above report, please visit this Link.
If you have any snowpack or avalanche observations, drop them a line at firstname.lastname@example.org or call: 406-587-6984.
For detailed Avalanche Terms utilized here, please see the Avalanche Glossary.
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Information provided by Yellowstone National Park, National Weather Service and Gallatin National Forest Avalanche Center
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