Yellowstone Up Close and Personal Logo © Copyright Page Makers, LLC
Yellowstone Up Close and Personal Grizzly Logo © Copyright Page Makers, LLC

Daily Winter Weather Report

Date: Wednesday - March 02, 2011

Station Max Temp Min Temp Pres Temp New Snow Depth Sky Present Conditions
Canyon 34 -5 -5 0 46 SC Calm
East Entrance 24 1 2 0 39 BC Calm
Grant Village 32 -2 -1 0 53 - Calm / clear
Lake 32 -2 2 0 47 SC Calm
Lamar 38 -1 4 0 22 SC Calm
Madison 42 -1 5 0 34 SC Calm
Mammoth 39 18 23 0 17 - S@4-6mph / clear
Old Faithful 34 -2 8 0 36 OC Calm
Pahaska 41 11 16 0 44 OC Calm
Snake River 41 -3 -2 0 52 - Calm / clear
Soda Butte 38 -1 4 T 23 SC Calm
Thumb Divide 36 0 6 0 57 OC Calm
Tower 41 5 5 0 31 SC Calm
West Entrance 36 -3 4 0 47 SC Calm
T=Trace / BC=Broken Clouds / OC=Overcast / SC=Scattered Clouds
All Temperatures are in °F ~ All Snow Depths are in Inches

* * * Road Conditions * * *
Road Section Status Conditions Public Access / Info
Gardiner to Mammoth YR Good STR
Mammoth to Tower YR Good 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 CLOSED CLOSED CLOSED
Lake to West Thumb Open Fair 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


# 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 ********


Yellowstone Seven Day Forecast on March 02, 2011
by the National Weather Service Riverton, WY

Today...Breezy. Mostly cloudy. Slight chance of snow in the morning...then chance of snow in the afternoon. Highs 31°F to 37°F. Southwest winds 15 to 20 mph in the late morning and afternoon. Chance of snow 40 percent.

Tonight...Breezy. Cloudy with a 50 percent chance of snow. Lows 18°F to 24°F. Southwest winds 15 to 20 mph.

Thursday...Cloudy with a 50 percent chance of snow. Highs 27°F to 33°F. Southwest winds around 15 mph in the morning.

Thursday Night...Cloudy with a 50 percent chance of snow. Lows 13°F to 19°F.

Friday...Cloudy with a 50 percent chance of snow. Highs 26°F to 32°F. West winds around 15 mph in the afternoon.

Friday Night...Cloudy. Occasional flurries in the evening...then slight chance of snow after midnight. Lows 7°F to 13°F. Chance of snow 20 percent.

Saturday...Mostly cloudy with a 50 percent chance of snow. Highs 26°F to 32°F.

Saturday Night...Cloudy with a 50 percent chance of snow. Lows 12°F to 18°F.

Sunday...Cloudy with a 50 percent chance of snow. Highs 27°F to 33°F.

Sunday Night...Cloudy with a 40 percent chance of snow. Lows 9°F to 15°F.

Monday...Mostly cloudy with a 50 percent chance of snow. Highs 24°F to 30°F.

Monday Night...Mostly cloudy with a 30 percent chance of snow. Lows 4°F to 10°F.

Tuesday...Mostly cloudy with a 20 percent chance of snow. Highs 20°F to 26°F.

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

* * * Snow Depth Totals as reported at SNOTELs * * *
Station Depth (inches) Station Depth (inches)
Black Bear 109 Parker Peak 80
Blackwater 64 Snake River Station 40
Canyon 49 Sylvan Lake 62
Evening Star 79 Sylvan Road 48
Fisher Creek 98 Thumb Divide 56
Grassy Lake 92 Two Ocean Plateau -
Lewis Lake Divide 86 West Yellowstone 46
Madison Plateau 73 Whiskey Creek 57
Northeast Entrance 40 Wolverine 39

Avalanche Information
from the Gallatin National Forest Avalanche Center - March 02, 2011 - this report is by Doug Chabot. This advisory does not apply to operating ski areas.

Mountain Weather

Yesterday was a snow free day. West winds decreased and are currently averaging 15-20 mph with gusts to 35 mph. Under partly cloudy skies the temperature dropped last night to 20°F from yesterday's high near 30°F. Today will begin with mostly sunny skies, yet clouds will increase. Temperatures will climb to near freezing as winds remain west to southwest at 20 mph. Late tonight a spit of snow will drop a trace to one inch in the northern mountains and 1 to 2 inches in the south.

Snowpack and Avalanche Discussion:

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

On Monday, winds gusted to 60 plus mph scouring, sculpting and drifting. The high velocity winds did a better job of stripping than loading slopes. Yesterday the speeds calmed and temperatures warmed to near freezing which helped cement many of these newly formed slabs in place. The Big Sky Ski Patrol tried releasing a few hard slabs without luck. Nevertheless, strong mid-mountain winds from the south loaded many gullies and edges of paths, which could still be triggered. The avalanche fatality in Truman Gulch two weeks ago was on the heels of a similar wind event that created a deep hard slab on the edge of a gully.

My travel advice today is simple: be careful getting onto hard slabs at the ridgelines or in gullies. This includes cornices. These have grown substantially in the past weeks making it harder to identify where they may break. It's hard to believe that a piece of snow weighing thousands of pounds would break under the weight of a 150 pound person, but they do. Besides risking injury (and soiling your pants) if you surf one down, they can also trigger avalanches. Outside Cooke City on Sunday, I saw two slides that released from natural cornice drops.

The snowpack throughout our advisory area is lacking widespread weak layers. There are still a few isolated areas where unstable snow could exist, but these are few and far between. On Sunday a snowboarder triggered a slide on a small, steep, east-facing slope. Faceted grains on an ice crust were the culprit, but this layering seemed unique to this spot (snowpit profile) and I could not find it elsewhere.

For today, the Avalanche Danger is rated MODERATE on all recently wind-loaded slopes. Slopes spared a wind-load will have a LOW Avalanche Danger. And remember, a low danger does not mean NO danger.


1. We've recently uploaded more photos and snowpits to our web site, more than what are linked in the advisory.

2. We're creating a series of "How To…" stability test videos. So far we've got clips on performing a CT and ECT. There are located under Stability Tests on the Resources page.

3. The results from our survey are posted online. Thanks to all who participated. You can check out the results at

In response to our survey we added a new page to the website with images of our snowpit profiles. This page is under the Resources/Other Info tab at

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 or call: 406-587-6984.

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

Upcoming Events

SATURDAY - Pinhead Classic

The 30th Annual Pinhead Classic on is Saturday, March 5th. "Gangsters and Flappers" is this year's costume theme, so come dressed up to race, socialize and wind great prizes. Registration is $30 but get you all sorts of cool stuff. All proceeds benefit the Friends of the Avalanche Center. Check out the website for details.

Avalanche Danger Scale

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

Yellowstone National Park by Page Makers, LLC © Copyright All Rights Reserved
I n d e x
Accessibility Earthquakes Maps Video Page
Address Email Newspaper Visitor Centers
Adult Programs Entrances Old Faithful Live WebCam Visitor Stats
Amphibians Entrance Fees Pets Volcano Observatory
Animals Fall Closure Phone Numbers Waterfalls
Backcountry Fish Picnic Areas Weather
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
Not all who wander are lost by John Ronald Reuel Tolkien © Page Makers, LLC
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)
(North) = Closest Entrance to Yellowstone National Park.

State Road Reports
Idaho Utah
Montana Wyoming

Entrance Cities and Gateway Towns
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

Contact Us

by John William Uhler

Back to: Yellowstone Up Close and Personal

Copyright © 1995 - 2014 Page Makers, LLC and Yellowstone Media ~ All Rights Reserved