Daily Winter Weather Report
|Yellowstone National Park Winter Weather Links|
|Avalanche Advisory||Special Weather Info|
|Daily Winter Weather Report||Winter Road Report|
|Snow Depth Totals||Yellowstone Weather Forecast|
Date: Tuesday - 29 January 2013
|Station||Pres Temp||Max Temp||Min Temp||New Snow||Depth||Sky||Present Conditions|
|Bechler||14.0||14.0||13.0||0||OC||W @ 1 - 3 mph|
|Mammoth||14.0||16.4||12.8||.03||11||OC||WNW @ 2 - 3 mph|
|Old Faithful||10.4||10.4||6.9||0||32||OC||SSE @ 2 - 3 mph|
|Thorofare||6.0||6.0||5.0||0||OC||NW @ 3 - 8 mph|
|Tower||8.0||11.9||7.0||.07||OC||S @ 2 mph|
* * Live Weather via All Yellowstone WebCams * *
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|Road Section||Status||Conditions||Public Access / Info|
|Gardiner, MT to Mammoth||Open *||Snow Packed/Icy||STR - Not Maintained from 4:30 PM to 6:00 AM|
|Mammoth to Tower||Open *||Snow Packed/Icy||STR - Not Maintained from 4:30 PM to 6:00 AM|
|Tower to NE Entrance||Open *||Snow Packed/Icy||STR - Not Maintained from 4:30 PM to 6:00 AM|
|Beartooth Highway ♦||CLOSED ♦||CLOSED ♦||CLOSED ♦|
|Canyon to Lake||Open||Rubber tracked oversnow concession vehicles|
|Canyon to Tower ♦||CLOSED ♦||CLOSED ♦||CLOSED ♦|
|Grant to South Entrance||Open||Rubber tracked oversnow concession vehicles|
|Junction to Chief Joseph Hwy ♦||CLOSED ♦||CLOSED ♦||CLOSED ♦|
|Lake to East Entrance||Open||Rubber tracked oversnow concession vehicles|
|Lake to West Thumb||Open||Rubber tracked oversnow concession vehicles|
|Madison to Old Faithful||Open||Rubber tracked oversnow concession vehicles|
|Madison to West Yellowstone||Open||Rubber tracked oversnow concession vehicles|
|Mammoth to Norris||Open||Rubber tracked oversnow concession vehicles|
|Norris to Canyon||Open||Rubber tracked oversnow concession vehicles|
|Norris to Madison||Open||Rubber tracked oversnow concession vehicles|
|Old Faithful to Grant||Open||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 ********
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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.
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by the National Weather Service Riverton, WY
Today: Breezy...snow. Areas of blowing snow in the afternoon. Snow accumulation of 1 to 2 inches. South winds around 15 mph shifting to the west in the late morning and afternoon. Chance of snow 90 percent. Highs 14°F to 20°F.
Tonight: Cloudy. Scattered snow showers in the evening...then snow likely after midnight. Snow accumulation of 1 to 2 inches. Northwest winds around 15 mph shifting to the south in the late evening and overnight. Chance of snow 60 percent. Lows 3°F to 9°F.
Wednesday: Breezy...snow. Areas of blowing snow in the afternoon. Snow accumulation of 2 to 3 inches. West winds 15 to 20 mph. Chance of snow 80 percent. Highs 20°F to 26°F.
Wednesday Night: Breezy...snow. Areas of blowing snow. Snow accumulation of 3 to 4 inches. Southwest winds 15 to 20 mph. Chance of snow 80 percent. Lows 12°F to 18°F.
Thursday: Cloudy. Areas of blowing snow in the morning. Snow likely in the morning...then chance of snow in the afternoon. Snow accumulation of 1 to 2 inches. Total snow accumulation 9 to 15 inches. West winds around 15 mph. Chance of snow 60 percent. Highs 22°F to 28°F.
Thursday Night: Mostly cloudy with a 40 percent chance of snow. Lows 12°F to 18°F.
Friday: Mostly cloudy with a 30 percent chance of snow. Highs 24°F to 30°F.
Friday Night: Partly cloudy. Lows 7°F to 13°F.
Saturday: Mostly sunny. Highs 26°F to 32°F.
Saturday Night: Mostly clear. Lows 9°F to 15°F.
Sunday: Partly cloudy. Highs 29°F to 35°F.
Sunday Night: Partly cloudy with a 20 percent chance of snow. Lows 12°F to 18°F.
Monday: Partly cloudy with a 20 percent chance of snow. Highs 27°F to 33°F.
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|* * * Snow Depth Totals as reported at SNOTELs * * *|
|Station||Depth (inches)||Station||Depth (inches)|
|Black Bear||85||Parker Peak||55|
|Blackwater||53||Snake River Station||40|
|Evening Star||59||Sylvan Road||26|
|Fisher Creek||71||Thumb Divide||46|
|Grassy Lake||68||Two Ocean Plateau||63|
|Lewis Lake Divide||70||West Yellowstone||27|
|Madison Plateau||59||Whiskey Creek||35|
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from the Gallatin National Forest Avalanche Center - January 29, 2013 - this report is by Doug Chabot. This advisory does not apply to operating ski areas.
Cough, cough. Call in sick today and head up to Bridger Bowl, and don't forget your snorkel. The range is under a strong, moist, northwest flow and the Bridger Bowl Cloud is in full effect. At 6:00 AM it has snowed 18 inches in five hours! It's anyone's guess how long it will last, but the models show good energy and moisture into this afternoon. Click here for the latest snowfall amounts. The rest of our forecast area has 1 to 3 inches of new snow. Winds are averaging 15 to 20 mph out of the West with gusts of 25 mph. Mountain temperatures dropped last night into the single digits Fahrenheit. This week looks to be snowy, a welcome relief to our powder drought. By tomorrow morning I expect 4 to 6 inches in most areas with the Bridger Range getting another foot or two.
Snowpack and Avalanche Discussion:
The Bridger Range:
With a snow storm raging in the Bridger Range today, the avalanche danger is rising. Westerly winds will quickly load slopes further spiking the danger. Today is a day to be cautious in your backcountry travel. Snowfall rates hitting over four inches an hour almost guarantee avalanches: sluffs on steeper terrain, soft slabs elsewhere. For today, the Avalanche Danger is rated HIGH on wind-loaded terrain and on slopes steeper than 35 degrees. All other terrain has a CONSIDERABLE Avalanche Danger.
Cooke City, Northern Gallatin, Northern Madison Ranges:
With 2 to 3 inches falling last night and 5 to 8 inches the day before, the northern Gallatin and Madison Ranges are slowly getting a load of snow. The mountains around Cooke City received over a foot this past weekend too. The winds were light yesterday and wind drifts were small, but even so, a skier around Cooke City was able to get cracks shoot out 15 feet on thin, soft wind slabs. In general, the snow is falling onto a relatively strong snowpack, however there are some areas where the new snow is interfacing with sugary facets and will not bond well. For today, the Avalanche Danger is rated MODERATE on all avalanche terrain.
Southern Gallatin, and Southern Madison Ranges, and Lionhead Area near West Yellowstone:
The southern Madison, southern Gallatin Ranges and Lionhead area have a weak layer buried 6 to 8 inches under the surface. This layer is comprised of small, sugary, faceted grains and/or feathery crystals of surface hoar. By far, this is the weakest layer in the snowpack and it will become increasingly unstable as more snow falls in the next few days. Eric skied into the mountains around Hebgen Lake yesterday and got this layer to fracture in his tests (Eric's video, photo). I skied into Bacon Rind and could easily find the buried surface hoar, identified as a one inch thick stripe in my snowpit wall (photo). This layer will not support much new snow. Contrary to Eric's tests, I could not get this layer to fracture, but it really didn't matter since anytime we bury a surface hoar layer I know avalanches will likely follow at some point (Doug's video).
A skier or snowmobiler would likely trigger an avalanche today on a wind-loaded slope, thus I'm rating the Avalanche Danger CONSIDERABLE. All other slopes have a MODERATE Avalanche Danger, but another 4 to 6 inches today would quickly bump it up to CONSIDERABLE Avalanche Danger.
Hot Tip: With this type of weak layer, cracks shooting out from your ski tips and/or audible collapses (whumphs) are clear red flags the snowpack is dangerously ripe to avalanche. Stick to lower angled slopes with these signs of instability.
* * Two separate avalanche fatalities in Wyoming * *
On Sunday a skier was killed in an avalanche south of Jackson while another skier died in a slide in the northern region of Teton National Park. An article in the Jackson Hole News has details: http://jhnewsandguide.com/article.php?art_id=9491
The next advisory tomorrow morning at 7:30 a.m. If you have any snowpack or avalanche observations, drop us a line at firstname.lastname@example.org 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 email@example.com 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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