Utah Avalanche Center
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February 22, 2007 - 7:06 am
SUMMARY >>> Danger by
ASPECT & ELEVATION
BOTTOM LINE
on slopes over 35 degrees
An avalanche warning is in effect today and through the weekend for the mountains of northern and central Utah. There is a HIGH danger on any slope steeper than 30 degrees with recent deposits of wind drifted snow. There is also a HIGH danger on all slopes that face the north or east quadrants of the compass steeper than about 30 degrees. People should stay off of and out from underneath the above-mentioned slopes.
Forecaster: Bruce Tremper LINKS: -Danger scale- -Encyclopedia- -Text only- CURRENT CONDITIONS >>> LINKS TO MORE INFO: NWS SNOW PAGESNOTEL MAP
Unfortunately, it appears there is an avalanche fatality late yesterday on the southeast face of Gobblers Knob in Big Cottonwood Canyon. Three people were skiing together and one man decided to break off from the others to ski more challenging terrain. They think he went over the summit and down the East Ridge and dropped into the southeast-facing slopes on the Big Cottonwood Canyon side. Night vision goggles indicated an avalanche with tracks going in and none coming out. Rescuers will search the area today. Butler Fork and Mill D trailheads will be closed this morning.
Winds blew very hard last night and they will blow even harder today. On the most exposed peaks, they are blowing 30 gusting to 55 from the south and about half that amount on the lower ridge lines. Temperatures remain warm in the mid 20s on the ridge lines and near freezing at 8,000. Later today the winds should blow steady 50, gusting to 80.
RECENT AVALANCHES AND SNOWPACK INFO >>> LINKS TO MORE INFO
AVALANCHE LISTPHOTOSACCIDENTSSNOW PROFILES Some natural avalanches from wind loading were reported yesterday in Logan, Ogden, the Uinta Mountains and Provo. I would expect that the Salt Lake mountains will start to natural today as well.Today will be a fairly simple scenario. AVALANCHE CONCERNS >>> WHERE PROBABILITY SIZE TREND Likely
Unlikely Large
Small Increasing
Danger Same Decreasing
Danger over the next 24 hrs Because of the very strong winds last night, I have issued an avalanche warning for the mountains of northern and central Utah with avalanche danger rising to HIGH. Avoid any slope steeper than 30 degrees with recent wind deposits and avoid all slopes that face the north or east quadrants of the compass steeper than about 30 degrees. WHERE PROBABILITY SIZE TREND Likely
Unlikely Large
Small Increasing
Danger Same Decreasing
Danger over the next 24 hrs All the cagy avalanche folks I know, me included, have sworn off slopes steeper than about 33 degrees for the rest of the season. Remember that unusual weather makes unusual avalanches. Before the latest storms, we had the thinnest snowpack since 1977. Unless you grew up in Colorado, most people are just not used to the extremely fragile layers of depth hoar that underlie our snowpack. If you want to play on a steep slope, go to a ski area. Yesterday was the 11th day in a row with unintentional human triggered avalanches and today will likely be the 12th. Please prove me wrong. You can see photos of all the recent activity on our photo page. Details will be posted on the avalanche list page later this morning. MOUNTAIN WEATHER >>> LINKS TO MORE INFO
UAC COMPILATION
NWS ZONAL FORECAST
SEASONAL Wx CHARTS Winds should blast from the south today and increase to a steady 50 gusting to 80 by this afternoon and evening. We have a good, old-fashioned, cold frontjust like the good-old-daysarriving Friday morning, which should give us a foot of new snow by Saturday morning and if we are lucky, as much as 1 ½ to 2 feet in areas favored by a northwest flow such as the Cottonwood Canyons. Ridge top temperatures will be in the mid 20s today and drop to near 5 degrees on Saturday morning.We have another storm on tap for Sunday and Monday.
GENERAL ANNOUNCEMENTS >>> Yesterday, the Wasatch Powderbird Guides did not fly due to wind and most likely will not fly today with the exception of doing avalanche control for the Gobblers Knob rescue. With questions regarding their areas of operation call 742-2800.uac@avalanche.org (uac@avalanche.org). (Fax 801-524-6301)The information in this advisory is from the U.S. Forest Service, which is solely responsible for its content. This advisory describes general avalanche conditions and local variations always occur.Brett Kobernik will update this advisory by 7:30 on Friday morning, and thanks for calling.
The information in this advisory is from the U.S. Forest Service, which is solely responsible for its content. This advisory describes general avalanche conditions and local variations always occur.
This advisory provided by the Wasatch Cache National Forest, in partnership with: Utah Division of State Parks and Recreation, The Friends of the Utah Avalanche Center, Utah Department of Emergency Services and Homeland Security and Salt Lake County
The post was created using an automated process maintained by First Tracks! Online.
SUMMARY >>> Danger by
ASPECT & ELEVATION
BOTTOM LINE
on slopes over 35 degrees
An avalanche warning is in effect today and through the weekend for the mountains of northern and central Utah. There is a HIGH danger on any slope steeper than 30 degrees with recent deposits of wind drifted snow. There is also a HIGH danger on all slopes that face the north or east quadrants of the compass steeper than about 30 degrees. People should stay off of and out from underneath the above-mentioned slopes.
Forecaster: Bruce Tremper LINKS: -Danger scale- -Encyclopedia- -Text only- CURRENT CONDITIONS >>> LINKS TO MORE INFO: NWS SNOW PAGESNOTEL MAP
Unfortunately, it appears there is an avalanche fatality late yesterday on the southeast face of Gobblers Knob in Big Cottonwood Canyon. Three people were skiing together and one man decided to break off from the others to ski more challenging terrain. They think he went over the summit and down the East Ridge and dropped into the southeast-facing slopes on the Big Cottonwood Canyon side. Night vision goggles indicated an avalanche with tracks going in and none coming out. Rescuers will search the area today. Butler Fork and Mill D trailheads will be closed this morning.
Winds blew very hard last night and they will blow even harder today. On the most exposed peaks, they are blowing 30 gusting to 55 from the south and about half that amount on the lower ridge lines. Temperatures remain warm in the mid 20s on the ridge lines and near freezing at 8,000. Later today the winds should blow steady 50, gusting to 80.
RECENT AVALANCHES AND SNOWPACK INFO >>> LINKS TO MORE INFO
AVALANCHE LISTPHOTOSACCIDENTSSNOW PROFILES Some natural avalanches from wind loading were reported yesterday in Logan, Ogden, the Uinta Mountains and Provo. I would expect that the Salt Lake mountains will start to natural today as well.Today will be a fairly simple scenario. AVALANCHE CONCERNS >>> WHERE PROBABILITY SIZE TREND Likely
Unlikely Large
Small Increasing
Danger Same Decreasing
Danger over the next 24 hrs Because of the very strong winds last night, I have issued an avalanche warning for the mountains of northern and central Utah with avalanche danger rising to HIGH. Avoid any slope steeper than 30 degrees with recent wind deposits and avoid all slopes that face the north or east quadrants of the compass steeper than about 30 degrees. WHERE PROBABILITY SIZE TREND Likely
Unlikely Large
Small Increasing
Danger Same Decreasing
Danger over the next 24 hrs All the cagy avalanche folks I know, me included, have sworn off slopes steeper than about 33 degrees for the rest of the season. Remember that unusual weather makes unusual avalanches. Before the latest storms, we had the thinnest snowpack since 1977. Unless you grew up in Colorado, most people are just not used to the extremely fragile layers of depth hoar that underlie our snowpack. If you want to play on a steep slope, go to a ski area. Yesterday was the 11th day in a row with unintentional human triggered avalanches and today will likely be the 12th. Please prove me wrong. You can see photos of all the recent activity on our photo page. Details will be posted on the avalanche list page later this morning. MOUNTAIN WEATHER >>> LINKS TO MORE INFO
UAC COMPILATION
NWS ZONAL FORECAST
SEASONAL Wx CHARTS Winds should blast from the south today and increase to a steady 50 gusting to 80 by this afternoon and evening. We have a good, old-fashioned, cold frontjust like the good-old-daysarriving Friday morning, which should give us a foot of new snow by Saturday morning and if we are lucky, as much as 1 ½ to 2 feet in areas favored by a northwest flow such as the Cottonwood Canyons. Ridge top temperatures will be in the mid 20s today and drop to near 5 degrees on Saturday morning.We have another storm on tap for Sunday and Monday.
GENERAL ANNOUNCEMENTS >>> Yesterday, the Wasatch Powderbird Guides did not fly due to wind and most likely will not fly today with the exception of doing avalanche control for the Gobblers Knob rescue. With questions regarding their areas of operation call 742-2800.uac@avalanche.org (uac@avalanche.org). (Fax 801-524-6301)The information in this advisory is from the U.S. Forest Service, which is solely responsible for its content. This advisory describes general avalanche conditions and local variations always occur.Brett Kobernik will update this advisory by 7:30 on Friday morning, and thanks for calling.
The information in this advisory is from the U.S. Forest Service, which is solely responsible for its content. This advisory describes general avalanche conditions and local variations always occur.
This advisory provided by the Wasatch Cache National Forest, in partnership with: Utah Division of State Parks and Recreation, The Friends of the Utah Avalanche Center, Utah Department of Emergency Services and Homeland Security and Salt Lake County
The post was created using an automated process maintained by First Tracks! Online.