Daily Winter Weather Report
Date: Tuesday - February 01, 2011
|Station||Max Temp||Min Temp||Pres Temp||New Snow||Depth||Sky||Present Conditions|
|Canyon||10||-36||-35||0||41||Calm / Clear|
|East Entrance||15||-32||-31||T||36||Calm / Clear|
|Grant Village||-5||-34||-5||0||45||Calm / Clear|
|Lake||13||-28||-20||0||30||Calm / Clear|
|Lamar||37||-37||-35||T||27||Calm / Clear|
|Madison||9||-34||-31||0||28||Calm / Clear|
|Mammoth||3||-16||-15||0||20||SE@1mph / gust 3mph / Clear|
|Old Faithful||13||-26||-24||0||28||Calm / Clear|
|Snake River||17||-21||-20||0||50||Winds 1-5mph / Clear|
|Tower||10||-32||-28||0||26||S@10-15mph / Clear|
|West Entrance||15||-35||-34||0||36||Calm / Clear|
|Road Section||Status||Conditions||Public Access / Info|
|Gardiner to Mammoth||YR||Fair||STR|
|Mammoth to Tower||YR||Fair||STR|
|Tower to NE Entrance||YR||Fair||STR|
|Beartooth Highway||CLOSED *||CLOSED *||CLOSED *|
|Canyon to Lake||Open||Fair||Oversnow|
|Firehole Canyon Drive||Open||-||Oversnow - Snowcoaches only in the morning|
|Grant to South Entrance||Open||Good||Oversnow|
|Junction to Chief Joseph Hwy||CLOSED *||CLOSED *||CLOSED *|
|Lake to East Entrance||Open||Good||Oversnow|
|Lake to West Thumb||Open||Good||Oversnow|
|Madison to Old Faithful||Open||Good||Oversnow|
|Madison to West Yellowstone||Open||Good||Oversnow|
|Mammoth to Norris||Open||Fair||Oversnow|
|Norris to Canyon||Open||Fair||Oversnow|
|Norris to Madison||Open||Good||Oversnow|
|Old Faithful to Grant||Open||Good||Oversnow|
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 ********
by the National Weather Service Riverton, WY
Today...Partly cloudy. Patchy freezing fog in the morning. Highs -6°F to 0°F. Northeast winds around 15 mph in the morning. Lowest wind chill readings -44°F to -54°F in the morning.
Tonight...Mostly clear. Patchy freezing fog after midnight. Lows -21°F to -31°F. North winds around 15 mph early in the evening.
Wednesday...Not as cold. Mostly sunny in the morning then becoming partly cloudy. Patchy freezing fog in the morning. Highs 10°F to 18°F. Lowest wind chill readings -44°F to -54°F in the morning.
Wednesday Night...Not as cold. Partly cloudy. Patchy freezing fog after midnight. Lows -6°F to 4°F.
Thursday...Not as cold. Partly cloudy. Patchy freezing fog in the morning. Highs 23°F to 29°F.
Thursday Night...Mostly cloudy. Slight chance of snow in the evening...then chance of snow after midnight. Lows 7°F to 13°F. Chance of snow 30 percent.
Friday...Mostly cloudy with a 40 percent chance of snow. Highs 24°F to 30°F.
Friday Night...Cloudy with a 50 percent chance of snow. Lows 17°F to 23°F.
Saturday...Cloudy with a 50 percent chance of snow. Highs 27°F to 33°F.
Saturday Night...Mostly cloudy with a 50 percent chance of snow. Lows 15°F to 21°F.
Sunday...Mostly cloudy with a 50 percent chance of snow. Highs 23°F to 29°F.
Sunday Night...Much colder. Mostly cloudy in the evening then becoming partly cloudy. A 20 percent chance of snow. Lows -1°F to -7°F.
Monday...Colder. Partly cloudy. Highs 5°F to 11°F.
|* * * Snow Depth Totals as reported at SNOTELs * * *|
|Station||Depth (inches)||Station||Depth (inches)|
|Black Bear||86||Parker Peak||75|
|Blackwater||55||Snake River Station||27|
|Evening Star||77||Sylvan Road||40|
|Fisher Creek||85||Thumb Divide||44|
|Grassy Lake||76||Two Ocean Plateau||68|
|Lewis Lake Divide||73||West Yellowstone||34|
|Madison Plateau||55||Whiskey Creek||46|
from the Gallatin National Forest Avalanche Center - February 01, 2011 - this report is by Doug Chabot
Brrrr. After getting used to the warm weather last week, this morning's mountain temperatures are downright nasty. Minus 16°F to minus 20°F is the average with clear skies and light northerly winds at 5-15 mph. Today will be sunny, but cold. Temperatures will rise into the low single digits before plummeting again tonight to minus 15°F or minus 20°F; is there really a difference? High pressure, clear skies and temperatures in the teens are forecasted for tomorrow with a warming trend all week.
Snowpack and Avalanche Discussion:
The Bridger, Madison and Gallatin Ranges, the Lionhead area near West Yellowstone, and the mountains around Cooke City and the Washburn Range:
Stable snow prevails over most of our advisory area. Layers in the snowpack are bonding well which are confirmed in our snowpits, tests and field investigations. As folks expand their territory searching for untracked powder, they are finding avalanches that broke over a week ago in thinner snow and also near ridgelines on wind-loaded slopes. Eric and his partner checked out an older slide up Dudley Creek which was the result of a cornice break on heavily drifted snow.
Thinner snowpacks are weaker and can be found with a quick stab of a ski pole or by stepping off a sled. If you hit dirt, go somewhere else. Not only will the riding and sliding be better, but it'll be safer too. Snowpack assessment doesn't get much easier than this. Although the snowpack structure is weak in spots, without a new snow load most slopes are staying put.
Yesterday, folks reported small wind slabs breaking in the Bridger Range and also outside Cooke City. Winds have calmed, but it's still possible to trigger a small slide on a wind-loaded slope.
For today, the Avalanche Danger is rated MODERATE on wind-loaded slopes steeper than 35 degrees. All other slopes have a LOW Avalanche Danger.
Surface hoar was found over the weekend on some slopes. It appears to be a random distribution, but these feathery crystals are now capped with an inch or two of snow from Sunday night. Cold temperatures, clear nights and sunny days could further weaken the top six to eight inches of the snowpack. If you're interested in learning more about this process, you can read my article, No Snow, Big Problem.
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.
West Yellowstone: Beacon Park Operational
Skiing or riding near West Yellowstone? Test your beacon skills at a beacon park near the old airport where you can search for pre-placed beacons switched on/off by a control panel. Look for it by orange snow fence and signage just south of the snow cross track.
9th ANNUAL KING AND QUEEN OF THE RIDGE
The 9th Annual King and Queen of the Ridge will be held at Bridger Bowl on Saturday, February 12. ALL proceeds go to the Friends of the Avalanche Center who use the money to promote avalanche education in southwest Montana. Last winter we taught 64 classes reaching over 4,900 people. You can help raise money to continue this education in 2 ways:
1). Get pledges and hike the ridge. You don't have to do 20 laps – you can get flat pledges and hike just once! Or you can test your mettle and try and break John Yarington's record of 29 laps in 5 hours.
2). Sponsor someone. If you don't have someone to sponsor, consider sponsoring the GNFAC since we'll be hiking for dollars. Click Here for more information and registration forms.
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|
|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