Daily Winter Weather Report
Date: Tuesday - 12 February 2013
|Yellowstone National Park Winter Weather Links|
|Avalanche Advisory||Special Weather Info|
|Daily Winter Weather Report||Winter Road Report|
|Snow Depth Totals||Yellowstone Weather Forecast|
|Station||Pres Temp||Max Temp||Min Temp||New Snow||Depth||Sky||Present Conditions|
|Bechler||10.0||10.0||8.0||0||OC||N @ 2 mph|
|Mammoth||11.1||12.1||9.7||0||OC||WSW @ 2 mph|
|Old Faithful||11.5||11.5||7.8||0||OC||SE @ 3 - 5 mph|
|Thorofare||7.0||7.0||3.0||0||OC||E @ 2 - 5 mph|
* * Live Weather via All Yellowstone WebCams * *
Back to Index
|Road Section||Status||Conditions||Public Access / Info|
|Gardiner, MT to Mammoth||Open *||Good||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 ♦ (Dunraven Pass)|
|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 ********
|¤ ¤ - Please Note - ¤ ¤||There is NO wheeled vehicle travel East of Cooke City, Montana during the winter. This road (U.S. Highway 212), is Closed to Wheeled Vehicle Travel to the East as it is not plowed or maintained until late spring. In order to exit Cooke City, Montana, or Silver Gate, Montana, and Yellowstone, you must travel West back through Yellowstone to the North Entrance at Gardiner, Montana to exit the park and these towns.|
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. Also, see the Avalanche Advisory posted below.
Back to Index
by the National Weather Service Riverton, Wyoming
Today: Mostly cloudy. Patchy fog in the morning. Isolated snow showers in the afternoon. Chance of snow 20 percent. Highs 18°F to 24°F. Lowest wind chill readings -15°F to -25°F in the morning.
Tonight: Mostly cloudy with a 30 percent chance of snow. Lows 1°F to 7°F.
Wednesday: Breezy. Cloudy with a 50 percent chance of snow. West winds 15 to 20 mph in the afternoon. Highs 22°F to 28°F.
Wednesday Night: Cloudy with a 40 percent chance of snow. West winds around 15 mph in the evening. Lows 9°F to 15°F.
Thursday: Cloudy with a 50 percent chance of snow. Highs 19°F to 25°F.
Thursday Night: Mostly cloudy with a 20 percent chance of snow. Lows 4°F to 10°F.
Friday: Partly cloudy with a 20 percent chance of snow. Highs 23°F to 29°F.
Friday Night: Partly cloudy. Lows 6°F to 12°F.
Saturday: Mostly sunny in the morning then becoming partly cloudy. Highs 26°F to 32°F.
Saturday Night: Partly cloudy with a 20 percent chance of snow. Lows 10°F to 16°F.
Sunday: Mostly cloudy with a 40 percent chance of snow. Highs 24°F to 30°F.
Sunday Night: Mostly cloudy with a 30 percent chance of snow. Lows 4°F to 10°F.
Monday / Presidents' Day: Partly cloudy. Highs 17°F to 23°F.
Back to Index
|* * * Snow Depth Totals as reported at SNOTELs * * *|
|Station||Depth (inches)||Station||Depth (inches)|
|Black Bear||82||Parker Peak||54|
|Evening Star||63||Sylvan Road||29|
|Fisher Creek||73||Thumb Divide||41|
|Grassy Lake||63||Two Ocean Plateau||61|
|Lewis Lake Divide||65||West Yellowstone||26|
|Madison Plateau||54||Whiskey Creek||33|
Back to Index
from the Gallatin National Forest Avalanche Center - February 12, 2013 - this report is by Doug Chabot. This advisory does not apply to operating ski areas.
Last night a trace to one inch of snow fell in the southern mountains. Currently, westerly winds are blowing 10 to 20 mph except in the Bridger Range and Hyalite where they are reading 30 to 40 mph. Temperatures are near 10 degrees Fahrenheit under partly cloudy skies. Today will be partly to mostly cloudy with winds increasing out of the west to northwest. A trace to one inch may fall later tonight.
Snowpack and Avalanche Discussion:
Cooke City is loving life: deep snow and mostly stable conditions. This could change if winds increase and build slabs, but for the moment the place you may find unstable snow would be on lower elevation slopes that have thin snow cover (video). For today, the Avalanche Danger remains LOW.
Southern Gallatin and Madison Ranges, Lionhead area near West Yellowstone:
Without new snow or wind-loading the avalanche danger from Big Sky to West Yellowstone is slowly improving, but getting trickier to assess. There are two problems buried in the snow. The first problem is on slopes with a thinner snowpack (about three feet thick or less) where 2/3 of it is facets. Eric and I toured in Beehive Basin yesterday and confirmed this. Other skiers around Big Sky on Sunday and Monday also got collapsing and cracking and triggered a small pocket on a thin, west facing slope (photo). Yesterday on Lionhead Ridge outside of West Yellowstone skiers triggered a thinly covered slope that had a wind-slab on it (photo). Many slopes do not have these instabilities and will not crack or "whumph". In the absence of obvious warning signs, the first line of defense should be a quick probe to feel for a thin snow depth—thin is bad.
The second problem is confined to the southern Madison Range and Lionhead area. A layer of surface hoar and/or small facets are buried 1 to 2 feet deep. These are gaining strength, but can still avalanche. Luckily they are easy to spot as a dark stripe in a snowpit. These are worth digging for and testing. To be conservative I recommend skiing or sledding elsewhere if you find them.
For today, the Avalanche Danger is rated MODERATE on all slopes since human triggered avalanches are still possible.
Bridger Range, and Northern Gallatin Range:
Strong winds in the Bridger and northern Gallatin Ranges are scouring some slopes and loading others. The Hyalite area has a foot of snow that fell early Sunday morning which is now blowing around. On Saturday evening skiers triggered an avalanche on Alex Lowe Peak, located southwest of Mount Blackmore. The snowpack was thin, weak and capped with a dense wind slab. The price they paid was only a lost ski and a cold bivouac. Separately, avalanches can be expected where the snowpack is thin and also on wind-loaded slopes, but combined these create especially worrisome conditions. Although the Bridger Range did not get the snow that Hyalite did, their downhill winds are especially strong and scouring the alpine regions while loading slopes and gullies at mid-elevations. Today the Avalanche Danger is rated CONSIDERABLE on all wind-loaded terrain. All other slopes have a MODERATE Avalanche Danger.
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), (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 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