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Daily Winter Weather Report
Date: Wednesday - 02 January 2013
|Station||Max Temp||Min Temp||Pres Temp||New Snow||Depth||Sky||Present Conditions|
|Bechler||-1.0||-8.0||-3.0||0||30.99||OC||NNW @ 1 mph|
|Mammoth||6.0||2.1||2.3||0||6.76||OC||SSE @ 6 - 9 mph|
|Old Faithful||-2.0||-18.8||-2.0||.01||8.64||OC||ESE @ 2 - 3 mph|
|Thorofare||5.0||0.0||0.0||0||4.08||OC||SE @ 2 mph|
|Tower||-5.9||-10.2||-8.6||0||7.17||OC||E @ 1 mph|
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|Road Section||Status||Conditions||Public Access / Info|
|Gardiner to Mammoth||YR||STR|
|Mammoth to Tower||YR||STR|
|Tower to NE Entrance||YR||STR|
|Beartooth Highway||CLOSED *||CLOSED *||CLOSED *|
|Canyon to Lake||Open||Rubber tracked oversnow concession vehicles|
|Firehole Canyon Drive||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|
|Tower to Canyon||CLOSED *||CLOSED *||CLOSED *|
YR=Year Round / NR=No Restrictions / STA=Snow Tires Advised / STR=Snow Tires Required
* NOTE: CLOSED FOR THE SEASON.
# Poor road conditions - bare spots and melting snow - Restricted to Snowcoaches Only.
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: Partly cloudy in the morning then clearing. Patchy fog in the morning. Highs 14°F to 20°F.
Tonight: Mostly clear. Patchy fog after midnight. Lows -6°F to 2°F.
Thursday: Not as cold. Mostly sunny. Patchy fog in the morning. Highs 23°F to 29°F.
Thursday Night: Mostly clear. Patchy fog after midnight. Lows -3°F to 5°F.
Friday: Mostly sunny in the morning then becoming partly cloudy. Patchy fog in the morning. Highs 21°F to 27°F.
Friday Night: Mostly clear. Patchy fog after midnight. Lows -4°F to 2°F.
Saturday: Sunny. Patchy fog in the morning. Highs 21°F to 27°F.
Saturday Night: Mostly clear. Patchy fog after midnight. Lows 6°F to 12°F.
Sunday: Partly cloudy. Patchy fog in the morning. Highs 21°F to 27°F.
Sunday Night: Partly cloudy. Lows 11°F to 17°F.
Monday: Partly cloudy. Highs 21°F to 27°F.
Monday Night: Partly cloudy. Lows 11°F to 17°F.
Tuesday: Partly cloudy in the morning then clearing. Highs 24°F to 30°F.
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|* * * Snow Depth Totals as reported at SNOTELs * * *|
|Station||Depth (inches)||Station||Depth (inches)|
|Black Bear||71||Parker Peak||43|
|Blackwater||45||Snake River Station||28|
|Evening Star||46||Sylvan Road||21|
|Fisher Creek||63||Thumb Divide||34|
|Grassy Lake||49||Two Ocean Plateau||55|
|Lewis Lake Divide||58||West Yellowstone||18|
|Madison Plateau||46||Whiskey Creek||25|
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from the Gallatin National Forest Avalanche Center - January 02, 2013 - this report is by Doug Chabot. This advisory does not apply to operating ski areas.
This morning I'm reporting no snow, clear skies, light winds and mountain temperatures in the single digits Fahrenheit. High pressure will keep skies sunny. Today's temperatures will warm into the low 20s Fahrenheit and winds will remain light out of the northwest at 10 to 15 mph. Tonight will be cold with single digit temperatures Fahrenheit, but over the next few days a general warming trend is predicted under mostly sunny skies.
Snowpack and Avalanche Discussion:
The Bridger, Gallatin and Madison Ranges, the Lionhead area near West Yellowstone and Cooke City:
Our snowpack is generally stable. It's becoming increasingly rare to find weak layers of facets near the bottom of the snowpack breaking in our stability tests. Natural and human triggered slides are also rare, which, given the high volume of traffic in the backcountry last week, is a positive sign.
Generally safe avalanche conditions prevail, but as a student of the snow I know that small avalanches are still possible (photo). Snowpacks less than three feet deep have the weakest snow. Without new snow or a wind-load these slopes are mostly fine, but a quick snowpit and stability test will take the guesswork out of decision-making. The top 6 to 12 inches of our snowpack is getting weaker by the day. Cold clear nights and warmer, sunny days create faceted, weaker, unbonded snow through a process called near-surface faceting (article). The snow is not static, and unfortunately today's sunny weather creates tomorrow's weak layer. In isolated areas wind has blown thin slabs on top of these facets and it's not out of the question to trigger a small avalanche, which a skier reported doing on Saddle Peak yesterday.
Without new snow or widespread wind-loading, the snowpack is not under any stress and is enjoying a breather after the holidays, just like the rest of us. For today, throughout our entire forecast area, the Avalanche Danger is rated LOW on all slopes.
From the Sierras: Watch and Learn
When five backcountry skiers share just two beacons and shovels, this is what you end up with. Not exactly a crack team of rescuers.
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.
PHOTOS, SNOWPITS, and VIDEOS
1. For links to Articles, Education and (photos) and (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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Back to the Yellowstone Daily Winter Reports or the Yellowstone Weather Page
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