|Yellowstone National Park Winter Weather Links|
|Avalanche Report||Special Weather Info|
|Daily Winter Weather Report||Winter Road Report|
|Snow Depth Totals||Yellowstone Weather Forecast|
Daily Winter Weather Report
Date: Wednesday - 26 December 2012
|Station||Max Temp||Min Temp||Pres Temp||New Snow||Depth||Sky||Present Conditions|
|Mammoth||19.9||15.3||15.3||.03||6.70||OC||SE@3 to 4 mph|
|Old Faithful||13.9||2.6||3.3||.06||8.48||OC||1 mph|
Back to Index
|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 ********
Back to Index
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.
Back to Index
by the National Weather Service Riverton, WY
Today: Snow likely. Snow accumulation of 1 to 2 inches. Chance of snow 70 percent. Highs 16°F to 22°F.
Tonight: Snow likely in the evening...then snow after midnight. Snow accumulation of 2 to 3 inches. Chance of snow 90 percent. Lows 5°F to 11°F.
Thursday: Snow likely. Snow accumulation of 1 to 2 inches. Total snow accumulation 4 to 7 inches. Chance of snow 70 percent. Highs 16°F to 22°F.
Thursday Night: Cloudy. Chance of snow in the evening...then slight chance of snow after midnight. Chance of snow 40 percent. Lows 0°F to 6°F.
Friday: Mostly cloudy with a 20 percent chance of snow. Highs 14°F to 20°F.
Friday Night: Partly cloudy. Lows -2°F to 4°F.
Saturday: Partly cloudy. Highs 16°F to 22°F.
Saturday Night: Partly cloudy with a 20 percent chance of snow. Lows 1°F to 7°F.
Sunday: Partly cloudy with a 30 percent chance of snow. Highs 16°F to 22°F.
Sunday Night: Partly cloudy with a 20 percent chance of snow. Lows 0°F to 6°F.
Monday: Partly cloudy with a 20 percent chance of snow. Highs 17°F to 23°F.
Monday Night / New Years Eve: Partly cloudy. Lows 3°F to 9°F * Happy New Year *
Tuesday / New Years Day: Partly cloudy. Highs 19°F to 25°F. * Happy New Year *
Back to Index
|* * * Snow Depth Totals as reported at SNOTELs * * *|
|Station||Depth (inches)||Station||Depth (inches)|
|Black Bear||74||Parker Peak||45|
|Blackwater||47||Snake River Station||32|
|Evening Star||52||Sylvan Road||21|
|Fisher Creek||68||Thumb Divide||38|
|Grassy Lake||51||Two Ocean Plateau||58|
|Lewis Lake Divide||64||West Yellowstone||16|
|Madison Plateau||56||Whiskey Creek||26|
Back to Index
from the Gallatin National Forest Avalanche Center - December 26, 2012 - this report is by Doug Chabot. This advisory does not apply to operating ski areas.
At 6:00 a.m. it just started snowing around Big Sky with an inch falling. Mountain temperatures are 5° to 10° Fahrenheit with southwest winds at 15 to 25 mph. The Bridger Range is calmer and warmer with 5 to 10 mph winds and temperatures in the teens Fahrenheit. Today will be cloudy as temperatures rise into the upper teens Fahrenheit with light to moderate southwest winds. Tonight winds will switch to the northwest, but speeds will not increase much. Scattered snow showers will drop 1 to 3 inches by morning.
Snowpack and Avalanche Discussion:
The Bridger, Gallatin and Madison Ranges, the Lionhead area near West Yellowstone and Cooke City:
Light winds have stopped fueling wind-drifts. Yesterday, ski patrols could trigger soft wind slabs with ski cuts, but they were not propagating far. I expect these drifts to be more stubborn today.
A lot of slopes in the backcountry have a stable snowpack (photo). Even with faceted grains near the ground, these slopes are not propagating fractures in stability tests. This fact alone is not enough to point to stability, but when these tests are performed multiple times on the same slopes over the course of weeks, coupled with loads of new snow followed by minimal avalanche activity, we begin to feel confident in our assessment.
Although many slopes are stable, some are not. The difference between the two is not obvious; however there are two things to look for. The first is that slopes thinner than three feet deep seem to be the weakest. Second, clean fractures in our stability tests signal unstable conditions (photo, video). Finding just one unstable result is enough evidence to wave the white flag of surrender and stick to slopes less than 30 degrees.
Eric skied Mount Ellis in the northern Gallatin Range on Saturday and found two feet of weak, faceted snow, but without the overburden of a slab, its structure was not unstable. The variability of conditions are on full display in the Bridger Range where the Football Field of Saddle Peak and Truman Gulch had stable test results, but further north near Frazier Basin they were unstable (snow pit). This variability requires careful evaluation and is the reason today's Avalanche Danger is rated MODERATE on all slopes throughout our advisory area.
Last week's period of cold, sometimes clear weather, turned the top few inches of snow into weaker, small grained facets. These did not form everywhere, and to further complicate their distribution, strong winds on Friday scoured them from some slopes too. This layer is now capped by the recent snows. It is not deep enough to be a grave avalanche concern yet, but we'll be looking for it since these layers tend to persist.
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 all 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.
Back to Index
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
|I n d e x|
|Adult Programs||Entrances||Old Faithful Live WebCam||Visitor Stats|
|Amphibians||Entrance Fees||Pets||Volcano Observatory|
|Animals||Fall Closure||Phone Numbers||Waterfalls|
|Bear Management||Fishing Fees||Ranger Led Activities||WebCams|
|Bear Sightings||Fishing Regulations||Reptiles||Wildflowers|
|Biking||Getting Here||Reunions||Winter Closing|
|Boating||Hiking||Rivers, Creeks & Streams||Winter Opening|
|Books||History||Roads||Winter Weather Reports|
|Butterflies||Junior Ranger Program||Schedule||Wolf Project|
|Camping||Lakes||Search Page||Wolf Sightings|
|Campground Maps||Location||Spring Opening||Wolverine Help|
|Challenges||Lodging||Star Talks||Yellowstone ~ the Name|
|Chat Page||Lynx Help||Trip Planner pdf||Young Scientist|
|Clinics / Medical||Mammal List||Trip Reports||Youth Conservation Corps|
|Yellowstone National Park WebCams|
|Old Faithful Live||All Old Faithful||Old Faithful Static||Old Faithful VC||North Entrance||Mt Washburn||Mammoth||YVO WebCam|
|Rexburg Idaho WebCams|
|♦ Rexburg, Idaho WebCams ♦|
|Yellowstone Area Highway WebCams|
|Alpine Junction Hwy 89 (South)||Monida Pass I-15 (North)|
|Bozeman Pass I-90 (North)||Osborne Bridge Hwy 20 (West)|
|Henry's Lake North Hwy 20 (West)||Raynolds Pass MT 87 (North or West)|
|Henry's Lake South Hwy 20 (West)||Teton Pass WY 22 (South)|
|State Road Reports|
|Gardiner, Montana||Silver Gate, Montana||West Yellowstone, Montana||Cooke City, Montana|
|Livingston, Montana||Cody, Wyoming||Jackson Hole, Wyoming||Yellowstone National Park|
|The Great Outdoors Net||Great Outdoor Recreational Places|
|Gardiner, Montana||World Humanity|
by John William Uhler
Back to: Yellowstone Up Close and Personal