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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: Thursday - 24 January 2013

Station Pres Temp Max Temp Min Temp New Snow Depth Sky Present Conditions
Bechler 23.0 23.0 20.0 0   OC N @ 2 mph
Canyon 25.5 25.5 22.1 .10 29 OC Calm
East Entrance 34.4 35.9 26.2 0 17 OC  
Lake 23.0 23.0 14.0 0 29 OC Calm
Madison 24.1 28.8 20.4   18 OC  
Mammoth 35.5 37.7 34.8 .01 11 OC SSE @ 11 - 16 mph
NE Entrance 34.9 35.4 31.6 .10 14 OC  
Old Faithful 32.3 32.6 26.7 0 25 OC SW @ 5 - 14 mph
Soda Butte 30.0 31.4 19.1 0 2.43 OC  
South Entrance 15.0 15.0 5.4 0 31 OC  
Sylvan Lake 31.6 33.4 31.6 .10 37 OC  
Sylvan Road 35.1 35.1 14.9 .10 23 OC  
Thorofare 26.0 30.0 26.0 0   OC NW @ 9 - 17 mph
Thumb Divide 30.7 30.7 27.3 .30 37 OC  
Tower 21.6 21.8 15.8 .01 7.42 OC ESE @ 1 - 2 mph
West Entrance 31.1 31.1 30.6 .10 23 OC  
T=Trace/ BC=Broken Clouds/ C=Clear/ OC=Overcast/ SC=Scattered Clouds
All Temperatures are in °F ~ All Snow Depths are in Inches

* * Live Weather via All Yellowstone WebCams * *

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* * * Road Conditions * * *
Road Section Status Conditions Public Access / Info
Gardiner to Mammoth Open *   STR
Mammoth to Tower Open *   STR
Tower to NE Entrance Open *   STR
Beartooth Highway CLOSED CLOSED CLOSED
Canyon to Lake Open Fair Rubber tracked oversnow concession vehicles
Firehole Canyon Drive Open Fair Rubber tracked oversnow concession vehicles
Grant to South Entrance Open Good 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
Tower to Canyon 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 ********

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SPECIAL INFORMATION

    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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Yellowstone Seven Day Forecast on January 24, 2013
by the National Weather Service Riverton, WY

Today: Breezy. Snow likely. Snow accumulation of 1 to 2 inches. Southwest winds 15 to 25 mph. Chance of snow 60 percent. Highs 23°F to 29°F.

Tonight: Breezy. Mostly cloudy in the evening then becoming partly cloudy. A 20 percent chance of snow. Southwest winds 15 to 20 mph. Lows 9°F to 15°F.

Friday: Partly cloudy. Southwest winds around 15 mph early in the morning becoming southwest around 15 mph late in the afternoon. Highs 25°F to 31°F.

Friday Night: Partly cloudy in the evening then becoming mostly cloudy. A 30 percent chance of snow. Southwest winds around 15 mph. Lows 11°F to 17°F.

Saturday: Partly cloudy in the morning then becoming mostly cloudy. A 30 percent chance of snow. Highs 24°F to 30°F.

Saturday Night: Mostly cloudy with a 30 percent chance of snow. Lows 13°F to 19°F.

Sunday: Mostly cloudy with a 40 percent chance of snow. Highs 25°F to 31°F.

Sunday Night: Colder. Mostly cloudy with a 40 percent chance of snow. Lows 5°F to 11°F.

Monday: Partly cloudy with a 40 percent chance of snow. Highs 17°F to 23°F.

Monday Night: Partly cloudy with a 30 percent chance of snow. Lows 1°F to 7°F.

Tuesday: Mostly cloudy with a 40 percent chance of snow. Highs 14°F to 20°F.

Tuesday Night: Mostly cloudy in the evening then becoming partly cloudy. A 40 percent chance of snow. Lows -2°F to 4°F.

Wednesday: Mostly cloudy with a 40 percent chance of snow. Highs 17°F to 23°F.

Snowflake Hazardous Weather Forecast Snowflake Gibbon Falls Forecast Snowflake Mammoth Forecast Snowflake Midway Forecast Snowflake Norris Forecast Snowflake Old Faithful Forecast Snowflake

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* * * Snow Depth Totals as reported at SNOTELs * * *
Station Depth (inches) Station Depth (inches)
Black Bear 70 Parker Peak 44
Blackwater 43 Snake River Station 31
Canyon 29 Sylvan Lake 37
Evening Star 47 Sylvan Road 23
Fisher Creek 62 Thumb Divide 37
Grassy Lake 50 Two Ocean Plateau 52
Lewis Lake Divide 58 West Yellowstone 23
Madison Plateau 48 Whiskey Creek 29
Northeast Entrance 14 Wolverine 18

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Avalanche Advisory

from the Gallatin National Forest Avalanche Center - January 24, 2013 - this report is by Mark Staples. This advisory does not apply to operating ski areas.

Mountain Weather

This morning mountain temperatures were in the high 20s and low 30s Fahrenheit. Winds increased yesterday afternoon. This morning they were averaging 20 mph with gusts of 30 to 40 mph from the Southwest. No snow fell overnight but a little snow was just starting to fall this morning. Don't get too excited because only an inch or two will accumulate today. Temperatures will drop a little by afternoon and winds will blow 15 mph gusting to 30 mph from the West.

Snowpack and Avalanche Discussion:

The Bridger, Gallatin, and Madison Ranges, the Lionhead area near West Yellowstone, and Cooke City:

The snowpack is mostly stable and generally safe avalanche conditions exist. Avalanches are a matter of timing, and now is a good time to ride in avalanche terrain. However, the probability of triggering an avalanche is never zero as illustrated by two recent, small slides near West Yellowstone.

Yesterday I rode on Lionhead, Doug skied in the southern Madison Range, and Eric skied in Hyalite Canyon. As in most parts of the advisory area, we found stable conditions, but there are two things to consider. One, a layer of faceted crystals exists 6 to 16 inches deep. Recent warm weather and a lack of stress from new snow have helped this layer gain strength. Since it's not buried very deep and could produce an avalanche, look for this layer and perform a few stability tests. Two, a new layer of faceted crystals (photo) and/or surface hoar (photo) exist on slopes sheltered from the wind where good powder can still be found. This layer will be a problem if enough snow falls to build a slab on top of it.

Today human triggered avalanches are unlikely and the Avalanche Danger today is LOW.

The next advisory tomorrow morning at 7:30 a.m. If you have any snowpack or avalanche observations, drop us a line at mtavalanche@gmail.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.

2. They have recently uploaded more photos and snowpits to their web site, more than what are linked in the advisory above.

3. They have creating a series of "How To…" stability test videos. So far they have clips on performing a CT and ECT. They are located under Stability Tests on their Resources page.

Information provided by Doug Chabot, Mark Staples, and Eric Knoff from the Gallatin National Forest Avalanche Center. For Photos and Videos, please visit the Avalanche Centers Website!

If you have any snowpack or avalanche observations, drop them a line at mtavalanche@gmail.com or call: 406-587-6984.

For detailed Avalanche Terms utilized here, please see the Avalanche Glossary.



Avalanche Danger Scale

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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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