Utah Avalanche Center
New member
March 5, 2007 - 7:05 am
SUMMARY >>> Danger by
ASPECT & ELEVATION
BOTTOM LINE
on slopes over 35 degrees
Well have pockets of CONSIDERABLE danger on slopes approaching 35 degrees and steeper on the west through north through southeast aspects. The danger of wet avalanche activity will again rise to CONSIDERABLE on all steep sun-exposed slopes, and may be more pronounced in the Provo area mountains. Cornices remain sensitive. Forecaster: Drew Hardesty LINKS: -Danger scale- -Encyclopedia- -Text only- CURRENT CONDITIONS >>> LINKS TO MORE INFO: NWS SNOW PAGESNOTEL MAP
We have high thin clouds blanketing the mountains and light west to southwesterly winds. Overnight lows remained balmy with temperatures rarely below 25 degrees above 9000. Highs yesterday reached into the upper thirties even at 11,000 and all but high north will have something of a zipper to full blown crust this morning.
RECENT AVALANCHES AND SNOWPACK INFO >>> LINKS TO MORE INFO
AVALANCHE LISTPHOTOSACCIDENTSSNOW PROFILES The steep sun-exposed slopes went through an expansive, though not necessarily long running wet loose cycle yesterday and youll definitely need to keep tabs on the wet activity today, particularly with the continued warm temps and thin clouds. Steep sunny exits could pose some issues today.
On the other side of the compass, large explosive triggered slides continue in the ski areas and in the backcountry, with the most notable a reported 12 monster to the ground in upper Little Cottonwood at 10,500 to 11,000. Its similar to the monsters already crow-barred out earlier in the week by control teams at Snowbasin. Disconcerting to the backcountry traveler through extrapolation is that these were the result of single or double shots in areas that had previous hammering. Were not done. Its possible that a sizeable hard slab naturalled in upper Soldier Fork 2.5-3 deep and 100 wide yesterday, though Im currently on the phone with parties whove been near the crime scene to nail down a general time frame. More later.
AVALANCHE CONCERNS >>> WHERE PROBABILITY SIZE TREND Likely
Unlikely Large
Small Increasing
Danger Same Decreasing
Danger over the next 24 hrs Its becoming more the exception and not the rule, but collapsing of the weak underlying structure caught a couple independent parties attention in high terrain of Big Cottonwood Canyon. Structure alone with damning evidence from pit data still warrants caution on the steeper slopes on the shady end of the dial. Were still only three days past a cycle that rang the bell of our snowpack. Continued warming may accelerate yesterdays increasing creep rates in the snowpack, so a natural hard slab in steep northwest through southeast terrain wouldnt be out of the question.
WHERE PROBABILITY SIZE TREND Likely
Unlikely Large
Small Increasing
Danger Same Decreasing
Danger over the next 8 hrs MOUNTAIN WEATHER >>> LINKS TO MORE INFO
UAC COMPILATION
NWS ZONAL FORECAST
SEASONAL Wx CHARTS High thin clouds will blanket the mountains for much of the day with generally light southwesterly winds. 8000 and 10,000 highs will reach into the mid 40s and mid-30s today. A weak disturbance moves through tomorrow with gradually cooling temps and a decent cold front for late Thursday.
GENERAL ANNOUNCEMENTS >>> The Wasatch Powderbird Guides flew in the Bountiful Sessions and American Fork, and will use a previous trade-out to fly in Silver, Cardiff, and Grizzly today. With questions regarding their areas of operation call 742-2800.
uac@avalanche.org (uac@avalanche.org). (Fax 801-524-6301)Brett Kobernik will update this advisory by 7:30 on Tuesday 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
Well have pockets of CONSIDERABLE danger on slopes approaching 35 degrees and steeper on the west through north through southeast aspects. The danger of wet avalanche activity will again rise to CONSIDERABLE on all steep sun-exposed slopes, and may be more pronounced in the Provo area mountains. Cornices remain sensitive. Forecaster: Drew Hardesty LINKS: -Danger scale- -Encyclopedia- -Text only- CURRENT CONDITIONS >>> LINKS TO MORE INFO: NWS SNOW PAGESNOTEL MAP
We have high thin clouds blanketing the mountains and light west to southwesterly winds. Overnight lows remained balmy with temperatures rarely below 25 degrees above 9000. Highs yesterday reached into the upper thirties even at 11,000 and all but high north will have something of a zipper to full blown crust this morning.
RECENT AVALANCHES AND SNOWPACK INFO >>> LINKS TO MORE INFO
AVALANCHE LISTPHOTOSACCIDENTSSNOW PROFILES The steep sun-exposed slopes went through an expansive, though not necessarily long running wet loose cycle yesterday and youll definitely need to keep tabs on the wet activity today, particularly with the continued warm temps and thin clouds. Steep sunny exits could pose some issues today.
On the other side of the compass, large explosive triggered slides continue in the ski areas and in the backcountry, with the most notable a reported 12 monster to the ground in upper Little Cottonwood at 10,500 to 11,000. Its similar to the monsters already crow-barred out earlier in the week by control teams at Snowbasin. Disconcerting to the backcountry traveler through extrapolation is that these were the result of single or double shots in areas that had previous hammering. Were not done. Its possible that a sizeable hard slab naturalled in upper Soldier Fork 2.5-3 deep and 100 wide yesterday, though Im currently on the phone with parties whove been near the crime scene to nail down a general time frame. More later.
AVALANCHE CONCERNS >>> WHERE PROBABILITY SIZE TREND Likely
Unlikely Large
Small Increasing
Danger Same Decreasing
Danger over the next 24 hrs Its becoming more the exception and not the rule, but collapsing of the weak underlying structure caught a couple independent parties attention in high terrain of Big Cottonwood Canyon. Structure alone with damning evidence from pit data still warrants caution on the steeper slopes on the shady end of the dial. Were still only three days past a cycle that rang the bell of our snowpack. Continued warming may accelerate yesterdays increasing creep rates in the snowpack, so a natural hard slab in steep northwest through southeast terrain wouldnt be out of the question.
WHERE PROBABILITY SIZE TREND Likely
Unlikely Large
Small Increasing
Danger Same Decreasing
Danger over the next 8 hrs MOUNTAIN WEATHER >>> LINKS TO MORE INFO
UAC COMPILATION
NWS ZONAL FORECAST
SEASONAL Wx CHARTS High thin clouds will blanket the mountains for much of the day with generally light southwesterly winds. 8000 and 10,000 highs will reach into the mid 40s and mid-30s today. A weak disturbance moves through tomorrow with gradually cooling temps and a decent cold front for late Thursday.
GENERAL ANNOUNCEMENTS >>> The Wasatch Powderbird Guides flew in the Bountiful Sessions and American Fork, and will use a previous trade-out to fly in Silver, Cardiff, and Grizzly today. With questions regarding their areas of operation call 742-2800.
uac@avalanche.org (uac@avalanche.org). (Fax 801-524-6301)Brett Kobernik will update this advisory by 7:30 on Tuesday 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.