US Forest Service Manti-La Sal National Forest

              Snow, Weather and Avalanche Advisory

                       

               

 Introduction:

 Good Morning, this is Max Forgensi with the USFS Manti-La Sal Avalanche Center with your with your avalanche and mountain weather advisory for the Wasatch Plateau/Manti Skyline Region, including, but not limited to Ephraim, Huntington and Fairview Canyons.  This advisory is brought to you through a partnership of Utah State Parks and the USFS.  Today is Sunday, March 20th, 2005 at 7:30 am.  

 

 

Current Conditions:

            Snow!  Winter is back with a SNOW ADVISORY IN EFFECT UNTIL 6 PM MST.  The Seeley Creek SNOTEL picked up 4” overnight and you can expect about the same at the tops of Fairview and Huntington Canyons.  Drifting and blowing of snow will continue throughout the day, deteriorating road conditions and reducing visibility.  Go up and enjoy the snow, and the wind if you’re a Kite-Boarder, there winds will be pretty consistent out of the west.  The sun-crusts will still be able to be felt under snowmobiles and skis, this snow will help though!           

 

Mammoth/Cottonwood SNOTEL:  45” of snow on the ground.  The high temperature yesterday reached 57 degrees!  It is currently 27 degrees out at 6:00 am.

Miller Flat Trailhead:  There is at least 48” of snow on the ground.

Seeley Creek SNOTEL:  There is 45” of snow on the ground.  The high temperature yesterday reached 32 degrees at this SNOTEL stake.  It is currently 23 degrees at 6:00 am. 

 

Mountain Weather:

SNOW ADVISORY IN EFFECT UNTIL 6 PM MST. 

Sunday:  Breezy.  Snow.  Accumulations of 4-8” expected.  Temperatures will reach the lower 30’s.  Winds will be out of the West at 15-25 mph.   

Sunday night:  Breezy.  Cloudy with snow likely.  Accumulations of 1-3” expected.  Low temperatures will be in the 20’s.  Winds will be out of the Northwest at 15-25.  Chance of precipitation is 60%. 

Monday:  Mostly cloudy.  Chance of precipitation is 40%.  High at 8,000’ in the mid 30’s. 

 

Avalanche Conditions:

                Last night and today you can expect the snow and strong winds to increase the avalanche danger.  Winds will be primarily out of the West throughout the day.  Expect wind drifts and cornices to develop on the leeward, East facing slopes.  Shallow soft slabs 1’-2’ thick will continue to develop throughout the day and so will the tender cornices.  How will the new snow bond to the old snow surface?  I am guessing not very good considering it was a very smooth crust in most areas.   The avalanche danger has risen!  The Bottom Line for today for the Skyline, I am going to rate the avalanche danger at MODERATE, especially on steep slopes greater than 35 degrees on NE-E slopes.   Visibility will be decreased for the traveler today, especially on top of the ridges, use extra caution so you don’t fall off unexpectedly.