|Yellowstone National Park Winter Weather Links|
|Avalanche Advisory||Special Weather Info|
|Daily Winter Weather Report||Winter Road Report|
|Snow Depth Totals||Yellowstone Weather Forecast|
Daily Winter Weather Report
Date: Friday - 11 January 2013
|Station||Pres Temp||Max Temp||Min Temp||New Snow||Depth||Sky||Present Conditions|
|Bechler||9.0||13.0||9.0||0||OC||Snowing / N @ 4 mph|
|Lake||5.0||12.0||5.0||.24||29||OC||Snowing / Calm|
|Mammoth||6.7||12.4||6.2||.21||7.5||OC||Snowing / NNW @ 14 - 21 mph|
|Old Faithful||6.0||11.1||6.0||0||32||OC||Snowing / N @ 1 - 2 mph|
|Thorofare||4.0||8.0||4.0||0||OC||Snowing / NW @ 4 - 7 mph|
|Tower||7.3||13.5||7.3||0||7.26||OC||Snowing / NW @ 6 - 8 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||Open||Rubber tracked oversnow concession vehicles|
|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: Areas of blowing snow in the morning. Snow. Snow accumulation of 1 to 2 inches. Total snow accumulation 3 to 7 inches. North winds around 15 mph. Chance of snow near 100 percent. Highs 5°F to 11°F. Wind chill readings -10°F to -20°F.
Tonight: Mostly cloudy. Chance of snow in the evening. North winds around 15 mph in the evening. Chance of snow 40 percent. Lows -8°F to -18°F.
Saturday: Partly cloudy. Highs 2°F to 8°F. Lowest wind chill readings -18°F to -28°F in the morning.
Saturday Night: Partly cloudy. Lows -7°F to -15°F.
Sunday: Partly cloudy. Highs 3°F to 9°F. Lowest wind chill readings -16°F to -26°F in the morning.
Sunday Night: Partly cloudy. Lows -7°F to -13°F.
Monday: Mostly cloudy with a 20 percent chance of snow. Highs 4°F to 10°F. Lowest wind chill readings -22°F to -32°F in the morning.
Monday Night: Mostly cloudy with a 40 percent chance of snow. Lows -6°F to 2°F.
Tuesday: Not as cold. Mostly cloudy with a 20 percent chance of snow. Highs 15°F to 21°F.
Tuesday Night: Mostly cloudy in the evening then becoming partly cloudy. Lows 1°F to 9°F.
Wednesday: Partly cloudy. Highs 20°F to 26°F.
Wednesday Night: Partly cloudy. Lows 3°F to 11°F.
Thursday: Mostly sunny in the morning then becoming partly cloudy. Highs 20°F to 26°F.
Back to Index
|* * * Snow Depth Totals as reported at SNOTELs * * *|
|Station||Depth (inches)||Station||Depth (inches)|
|Black Bear||81||Parker Peak||47|
|Blackwater||46||Snake River Station||34|
|Evening Star||53||Sylvan Road||23|
|Fisher Creek||70||Thumb Divide||35|
|Grassy Lake||60||Two Ocean Plateau||55|
|Lewis Lake Divide||65||West Yellowstone||23|
|Madison Plateau||54||Whiskey Creek||32|
Back to Index
from the Gallatin National Forest Avalanche Center - January 11, 2013 - this report is by Mark Staples. This advisory does not apply to operating ski areas.
♦ ♦ AVALANCHE WARNING ♦ ♦
The Gallatin National Forest Avalanche Center is issuing a Backcountry Avalanche Warning for the Southern Madison and Southern Gallatin Ranges and the Lionhead area near West Yellowstone. About one foot of new snow rests on an extremely weak layer of faceted snow crystals. Today the Avalanche Danger is HIGH on all slopes. Areas of unstable snow exist. Natural and human triggered avalanches are very likely. Avalanche terrain including avalanche runout zones should be avoided.
This warning will either be terminated or updated by 6:00 AM on January 12, 2013
Since yesterday, the southern Madison Range and the mountains near West Yellowstone area received 8 to 10 inches of new snow. The Bridger Range and northern Gallatin Range received 4 to 5 inches while the mountains near Big Sky and Cooke City received a paltry 2 inches. Temperatures this morning were near 0 degrees Fahrenheit and northerly winds were fortunately only blowing 5 to 10 mph. Today northerly winds will increase to 10 to 15 mph and temperature should drop to about -10 degrees Fahrenheit. Snowfall will continue until this afternoon and produce an additional 2 to 3 inches in most areas. Very cold temperatures will last thru this weekend.
Snowpack and Avalanche Discussion:
Southern Gallatin and Southern Madison Ranges, and Lionhead area near West Yellowstone:
In the southern Madison and southern Gallatin Ranges and the Lionhead area near West Yellowstone, snowfall since Monday totals about 12 to 14 inches. This snow rests on an extremely weak layer of faceted snow crystals that formed during the first week of January. Prior to yesterday's storm, stability tests indicated that this weak layer could produce avalanches (video). With yesterday's additional snow, human triggered avalanches are now very likely. These avalanches may be triggered in flat terrain below steeper slopes. For today, dangerous avalanche conditions exist and the Avalanche Danger is rated HIGH.
Northern Madison Range, and Cooke City:
Since the beginning of the week, snow totals are 14 inches near Cooke City and 7 inches near Big Sky. While significantly more snow fell this week near Cooke City, this area mostly lacks a weak layer of faceted crystals under the new snow. There are exceptions especially in lower elevation areas like Town Hill. On Wednesday while riding near Cooke City, the main problem I found was an upside-down and heavily wind-affected snowpack. This means hard snow was resting on softer snow and required a full throttle to ride through fresh drifts. This combination is a good recipe for human triggered avalanches. Fortunately this unstable combination is typically short lived.
It's a different story near Big Sky which has a very weak layer of faceted crystals under the new snow (photo). On Monday along Buck Ridge, Doug and Eric found this weak layer to be so fragile that it could barely support its own weight much less the weight of any new snow. For today, the Avalanche Danger is CONSIDERABLE on slopes steeper than 35 degrees. Less steep slopes have a MODERATE Avalanche Danger.
Bridger Range, and Northern Gallatin Range:
The mountains near Bozeman received 4 to 5 inches of low density snow overnight. This light snow combined with only an inch or two early this week will not increase the avalanche danger much today. These areas have a weak layer of facets that formed during the first week of January (video) but last night's light snow did not add much stress to this layer. Additionally, strong winds this week made the distribution this weak layer somewhat random, and it does not exist on every slope. For these reasons, today human triggered avalanches are possible and the Avalanche Danger is rated MODERATE.
The next advisory tomorrow morning at 7:30 a.m. 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) and (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.
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