Daily Winter Weather Report
Date: Saturday - 16 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|
|Bechler||27.0||32.0||26.0||0||BC||Gust S @ 2 mph|
|Mammoth||30.1||37.2||30.1||0||BC||W @ 4 mph|
|Old Faithful||26.5||34.3||26.3||0||22||BC||SW @ 1 - 2 mph|
|Thorofare||26.0||30.0||26.0||0||BC||WNW @ 1 - 4 mph|
|Tower||27.3||32.6||27.3||0||BC||S @ 3 - 4 mph|
* * Live Weather via All Yellowstone WebCams * *
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* * The South and West Entrances Closed at 9:00 PM on Friday, March 15th, 2013 for the Winter Season ~ The North Entrance is Open Year-round * *
|Road Section||Status||Conditions||Public Access / Info|
|Gardiner, MT to Mammoth||Open *||Good||NR - Not Maintained from 4:30 PM to 6:30 AM|
|Mammoth to Tower Junction||Open *||Good||STR - Not Maintained from 4:30 PM to 6:30 AM|
|Tower Junction to NE Entrance||Open *||Good||STR - Not Maintained from 4:30 PM to 6:30 AM|
|Beartooth Highway ♦||CLOSED ♦||CLOSED ♦||CLOSED ♦|
|Canyon to Lake ♦||CLOSED ♦||CLOSED ♦||CLOSED ♦|
|Canyon to Tower ♦||CLOSED ♦||CLOSED ♦||CLOSED ♦ (over Dunraven Pass)|
|Fishing Bridge to East Entrance ♦||CLOSED ♦||CLOSED ♦||CLOSED ♦|
|Junction to Chief Joseph Hwy ♦||CLOSED ♦||CLOSED ♦||CLOSED ♦|
|Madison to Old Faithful ♦||CLOSED ♦||CLOSED ♦||CLOSED ♦|
|Madison to West Yellowstone ♦||CLOSED ♦||CLOSED ♦||CLOSED ♦|
|Mammoth to Norris ♦||CLOSED ♦||CLOSED ♦||CLOSED ♦|
|Norris to Canyon ♦||CLOSED ♦||CLOSED ♦||CLOSED ♦|
|Norris to Madison ♦||CLOSED ♦||CLOSED ♦||CLOSED ♦|
|Old Faithful to West Thumb ♦||CLOSED ♦||CLOSED ♦||CLOSED ♦|
|West Thumb to Fishing Bridge ♦||CLOSED ♦||CLOSED ♦||CLOSED ♦|
|West Thumb to South Entrance ♦||CLOSED ♦||CLOSED ♦||CLOSED ♦|
* = 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
All Temperatures (Highs and Lows) are in degrees Fahrenheit (°F). All Sub Zero Temperatures are Highlighted.
Today: Mostly cloudy then becoming partly cloudy in the late morning and early afternoon then becoming mostly cloudy. Scattered snow showers through the day. Scattered rain showers in the afternoon. Highs 34 to 40. West winds around 15 mph in the afternoon. Chance of precipitation 40 percent.
Tonight: Cloudy. Scattered snow showers in the evening...then numerous snow showers after midnight. Areas of blowing snow early in the morning. Snow accumulation of 1 to 3 inches. Lows 17 to 23. Southwest winds around 15 mph. Chance of snow 70 percent.
Sunday: Windy...snow. Areas of blowing snow. Snow accumulation of 1 to 3 inches. Total snow accumulation 2 to 6 inches. Highs 22 to 28. Southwest winds 15 to 20 mph increasing to west 25 to 30 mph with gusts to around 45 mph in the afternoon. Chance of snow near 100 percent.
Sunday Night: Windy...colder. Mostly cloudy with a 50 percent chance of snow. Areas of blowing snow. Lows 4 to 10. West winds 20 to 30 mph decreasing to 15 to 20 mph after midnight.
Monday: Areas of blowing snow in the morning. Mostly cloudy with a 40 percent chance of snow. Highs 23 to 29. Southwest winds around 15 mph.
Monday Night: Areas of blowing snow in the evening. Mostly cloudy with a 20 percent chance of snow. Lows 8 to 14.
Tuesday: Mostly cloudy in the morning then becoming partly cloudy. A 20 percent chance of snow showers. Highs 30 to 36.
Tuesday Night: Cloudy with a 40 percent chance of snow showers. Lows 15 to 21.
Wednesday: Cloudy. Chance of snow showers in the morning...then chance of snow showers and rain showers in the afternoon. Highs 33 to 39. Chance of precipitation 50 percent.
Wednesday Night: Snow showers likely in the evening...then chance of snow showers after midnight. Lows 14 to 20. Chance of snow 60 percent.
Thursday: Cloudy. Snow showers likely in the morning...then chance of snow showers in the afternoon. Highs 26 to 32. Chance of snow 60 percent.
Thursday Night: Colder. Mostly cloudy. Chance of snow showers in the evening...then slight chance of snow showers after midnight. Lows 7 to 13. Chance of snow 40 percent.
Friday: Partly cloudy with a 20 percent chance of snow showers. Highs 27 to 33.
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|* * * Snow Depth Totals as reported at SNOTELs * * *|
|Station||Depth (inches)||Station||Depth (inches)|
|Black Bear||92||Parker Peak||57|
|Evening Star||65||Sylvan Road||25|
|Fisher Creek||80||Thumb Divide||42|
|Grassy Lake||67||Two Ocean Plateau||66|
|Lewis Lake Divide||69||West Yellowstone||29|
|Madison Plateau||60||Whiskey Creek||39|
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from the Gallatin National Forest Avalanche Center - March 16, 2013 - this report is by Mark Staples. This advisory Does Not Apply to operating ski areas.
This morning ridgetop temperatures were in the low 20s Fahrenheit. Lower elevations had temperatures in the high 20s Fahrenheit. Winds were blowing westerly at 10 to 15 mph in most areas. Today will be cooler than yesterday, and temperatures will be in the high 20s Fahrenheit to low 30s Fahrenheit with some sunshine and clouds. Winds will continue at 10 to 15 mph generally from the West. There is a chance for snow today and a better chance tonight. By tomorrow morning, 1 to 3 inches will accumulate in most areas. Snowfall will continue tomorrow.
Snowpack and Avalanche Discussion:
Bridger, Gallatin, and Madison Ranges, Lionhead Area near West Yellowstone, and Cooke City:
This time of year avalanche conditions can vary as much as the weather and change equally as fast. The good news is that temperatures dropped below freezing last night. These cold temperatures refroze the snow surface and will limit wet avalanches today but not eliminate this problem completely.
Yesterday, wet slab avalanches were observed on the west side of the Bridger Range (photo) and in a few places near Moonlight Basin and Big Sky. Smaller wet avalanches were observed including a few that Gallatin National Forest Snow Rangers intentionally triggered along a road in the northern Gallatin Range (video). At mid to low elevations in areas the snowpack became completely wet yesterday and only refroze at the surface this morning.
At higher elevations (roughly above 9,000 feet) the snowpack became wet in the surface layers only and refroze very well last night. These areas will have few avalanche concerns today; however, weak layers of faceted snow are still lurking in the snowpack. Eric found such a layer buried about 2 feet deep near Cooke City on a south aspect at 9,600 feet.
Today, be wary of mid to low elevation slopes where the snowpack was completely wet yesterday. Avalanches remain possible on these slopes even if the surface is frozen because deeper layers of snow may remain wet and weak. At higher elevations with a deeper, stronger, and colder snowpack, look for buried faceted layers 2 to 3 feet deep and conduct a few quick stability tests. For today the overall 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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Back to the Yellowstone Daily Winter Reports or the Yellowstone Weather Page
Information provided by Yellowstone National Park, National Weather Service and Gallatin National Forest Avalanche Center
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