Daily Winter Weather Report
Date: Thursday - 08 March 2012
|Station||Max Temp||Min Temp||Pres Temp||New Snow||Depth||Sky||Present Conditions|
|Road Section||Status||Conditions||Public Access / Info|
|Gardiner to Mammoth||YR||Intermittent Snow pack & Ice||Snow Tires Required|
|Mammoth to Tower||YR||Intermittent Snow pack & Ice||Snow Tires Required|
|Tower to NE Entrance||YR||Intermittent Snow pack & Ice||Snow Tires Required|
|Beartooth Highway||CLOSED *||CLOSED *||CLOSED *|
|Canyon to Lake||Open||Good||All oversnow vehicles|
|Canyon to Tower||CLOSED *||CLOSED *||CLOSED *|
|Firehole Canyon Drive||CLOSED||CLOSED||CLOSED|
|Grant to South Entrance||Open||Good||All oversnow vehicles|
|Junction to Chief Joseph Hwy||CLOSED *||CLOSED *||CLOSED *|
|Lake to East Entrance||CLOSED *||CLOSED *||CLOSED *|
|Lake to West Thumb||Open||Good||All oversnow vehicles|
|Madison to Old Faithful||Open||Good||All oversnow vehicles|
|Madison to West Yellowstone||Open||Good||All oversnow vehicles|
|Mammoth to Norris||CLOSED *||CLOSED *||CLOSED *|
|Norris to Canyon||CLOSED *||CLOSED *||CLOSED *|
|Norris to Madison||CLOSED *||CLOSED *||CLOSED *|
|Old Faithful to Grant||Open||Good||All oversnow vehicles|
YR = Open Year Round / NR = No Restrictions
* NOTE: CLOSED FOR THE WINTER 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 ********
* The East Entrance Road from the East Entrance to Lake Butte has closed to public oversnow travel for the season (01 March 2012).
* The Grand Loop Road from Mammoth to Norris Junction closed for the season Sunday evening (04 March 2012).
* The road from Norris Junction to Madison, and Norris Junction to Canyon closes tonight at 9:00 PM (06 March 2012).
* The Mammoth Hotel, Dining Room, and Gift Shop close today (06 March 2012).
* The Old Faithful Snowlodge, cabins, and dining room closed for the season on Sunday (11 March 2012).
* The Geyser Grill and Old Faithful Visitor Center remain open through March 15.
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.
Caution advised for snow falling off of building roofs. Park accordingly.
* * Be prepared for bitter cold (sub-zero) temperatures (some of the temperatures below DO NOT have the Wind Chill factored in). See NWS Weather Forecast below for detailed information. * *
by the National Weather Service Riverton, Wyoming
Today: East northeast wind at 5 mph becoming southwest. Sunny, with a high near 33°F.
Tonight: West wind around 6 mph becoming south southeast. Partly cloudy, with a low around 15°F.
Friday: South southwest wind around 7 mph. Sunny, with a high near 36°F.
Friday Night: West southwest wind around 9 mph. Mostly clear, with a low around 20°F.
Saturday: Southwest wind around 8 mph. Mostly sunny, with a high near 43°F.
Saturday Night: Southwest wind around 8 mph. Mostly cloudy, with a low around 18°F.
Sunday: A slight chance of rain and snow showers after 11:00 am. Southwest wind between 8 and 11 mph. Chance of precipitation is 20%. Mostly sunny, with a high near 40°F.
Sunday Night: A 30% chance of snow showers. Mostly cloudy, with a low around 22°F.
Monday: A 40% chance of snow showers. Mostly cloudy, with a high near 34°F.
Monday Night: A 30% chance of snow showers. Mostly cloudy, with a low around 19°F.
Tuesday: A chance of rain and snow showers. Partly sunny, with a high near 37°F.
Tuesday Night: A chance of snow showers. Mostly cloudy, with a low around 17°F.
Wednesday: A chance of snow showers. Partly sunny, with a high near 36°F.
|* * * Snow Depth Totals as reported at SNOTELs * * *|
|Station||Depth (inches)||Station||Depth (inches)|
|Black Bear||109||Parker Peak||72|
|Blackwater||77||Snake River Station||65|
|Evening Star||91||Sylvan Road||47|
|Fisher Creek||95||Thumb Divide||55|
|Grassy Lake||103||Two Ocean Plateau||92|
|Lewis Lake Divide||92||West Yellowstone||47|
|Madison Plateau||73||Whiskey Creek||58|
from the Gallatin National Forest Avalanche Center - 08 March 2012 - 7:30 am - this report is by Mark Staples. This advisory does not apply to operating ski areas.
A ridge of high pressure continues to build over the area and will bring more sun and warmer temperatures today. This morning temperatures were in the low-mid teens Fahrenheit, and westerly winds were averaging 10-15 mph with gusts of 20 mph in most places. They were much calmer further south near Lionhead and the Taylor Fork while further north in the Bridger Range they were blowing 30-35 mph. Today should be noticeably warmer with temperatures near 32 degrees Fahrenheit and westerly winds averaging 10 mph with gusts of 20 mph although stronger winds should continue in the Bridger Range.
Snowpack and Avalanche Discussion:
The Bridger, Madison and Gallatin Ranges, the mountains around Cooke City and the Lionhead area near West Yellowstone:
Yesterday the Bridger Bowl ski patrol found very sensitive wind slabs (2 to 14 inches deep) near the ridge that easily released with ski cuts and ran far downhill. These winds slabs were so reactive that the patrol was surprised some had not avalanched on their own. On Lone Mountain the Moonlight Basin ski patrol also triggered avalanches involving fresh wind slabs, and the Big Sky ski patrol noted a recent natural avalanche on Cedar Mountain.
Fresh wind slabs remain the primary avalanche concern. As temperatures rise today wet snow avalanches will also become a concern on South and West facing slopes. Fortunately these avalanche problems can be avoided with simple observations.
Buried facets create the third avalanche problem and require digging a snowpit to assess stability. Dig 4 feet deep and you will either find depth hoar near the ground (photo, video) or a thin layer of small facets. Both layers are adjusting to the weight of new snow that fell Tuesday and last weekend, and stability can vary from one slope to the next. With each passing day the odds of triggering an avalanche on these layers decreases but probably not as quickly as we'd like. Recent avalanches on Cedar Mountain (photos) near Big Sky illustrate the ability of these layers to produce avalanches. Additionally, a recent avalanche (3 to 5 feet deep) on Lionhead triggered by a falling cornice was spotted yesterday from the smokejumper base in West Yellowstone. For today, wind loaded slopes steeper than 35 degrees have a CONSIDERABLE Avalanche Danger. A MODERATE Avalanche Danger exists on less steep wind loaded slopes and all other slopes without a wind load.
Recent avalanche in Utah
A snowmobiler was caught and buried in an avalanche in Utah on Sunday. He was not wearing a beacon and was buried for about 20 minutes. He was incredibly lucky. Few people buried this long survive. Also, notice a recent avalanche on the adjacent slope. Recent avalanches are clear signs of unstable conditions: http://vimeo.com/38078462.
* * Accident Report * *
The accident reports for the avalanche fatality near Cooke City and the slide on Saddle Peak are now available. See this link.
* * * Last Saturday Francis Skierka from Cut Bank, Montana died in an avalanche in northwestern Montana near Marias Pass. Sadly his wife, Andrea, is pregnant and due in two months. A memorial fund to help Andrea and her baby has been established: The Francis Skierka Family Memorial, Stockman Bank, 125 West Main, Cut Bank MT 59427, 406-873-9400. * * *
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.
For Audio, Photos, Videos, and More Detailed Information related to this report, Please Visit the Gallatin National Forest Avalanche Center.
~ EVENT ~
Come to Bridger Bowl on Saturday, March 17th (Saint Patrick's Day) with telemark skis, AT skis, alpine skis, snowboards, split boards, or even snow blades. The theme is Snowpocalypse based on the wildly popular Mayan 2012 apocalypse. $30 gets you into the races, a pint glass, t-shirt, a good time, a raffle ticket, and food by Cafe Fresco. Pre-register at Mystery Ranch or Grizzly Ridge: March 11-16. Visit http://pinheadclassic.com/ or the Pinhead Facebook Page for more info.
The Friends of the Avalanche Center installed a Beacon Training Park outside West Yellowstone. It's located south of town on the main snowmobile trail. Stop by and do a quick practice before heading off into the mountains!
EDUCATION, EVENTS, PHOTOS, SNOWPITS, and VIDEOS
3. Check out all our education programs, Click Here.
Information provided by Doug Chabot, Mark Staples, and Eric Knoff from the Gallatin National Forest Avalanche Center. For Events and Education, or Photos and Videos, please visit the Avalanche Centers Website!
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.
Information provided by Yellowstone National Park, National Weather Service and Gallatin National Forest Avalanche Center
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by John William Uhler
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