US Forest Service Manti-La Sal National Forest

Introduction:  Good morning!  This is Dave Medara with the USFS Manti-La Sal Avalanche Center with your avalanche and mountain weather advisory.  Today is Thursday Dec. 23rdnd at 8:30 a.m. This advisory will expire in 24 hours.

 

WE ARE STARTING TO FILL UP OUR AIARE LEVEL 1 AND LEVEL 2 CLASSES BEING HELD IN THE LA SALS THIS YEAR.  THE LEVEL 1 IS FEBRUARY 3RD-5TH (FRI-SUN), WHILE OUR LEVEL 2 IS MARCH 3RD-6TH  (FRI-MON).  CALL (435) 636-3363 FOR MORE INFORMATION AND TO SIGN UP.  EACH CLASS IS LIMITED TO 12 STUDENTS.  TUITION GOES DIRECTLY TOWARDS THE FRIENDS OF THE MANTI-LA SAL AVALANCHE CENTER.

 

To see past advisories check out the ARCHIVE.  To see current conditions go to our WEATHER PAGE.  To see photos go to the AVIPHOTOS page.

 

General Conditions:

 

It seems that the best bet for winter recreational opportunities in the La Sal Mountains over the holiday weekend will be limited to sledding and cross country skiing on the road and trails. There is a lot of ground hazard out there and punji stakes in wooded areas so heads up! Conditions for classic cross-country and skate skiing on the roads are excellent as well as the snowmobiling on the roads. But be warned, Backcountry skiing conditions are really bad, and the cover is extremely thin for both snowmobiling or backcountry ski touring unless you’re a true diehard

            The mostly sunny weather forecast for the next couple of days is not going to change the situation very much, so be sure to include a snow dance in your Christmas celebrations. Nightly freezing temperatures should continue so at least the ice conditions in the sloughs will improve! The Grand County Road Department did plow the road, although it is still icy and snow packed in spots.  4WD and chains are recommended. 

 

Current Conditions: (click location for latest data)

Geyser Pass Trailhead (9,600’):  5.2” at the SNOTEL. 12” on the stake at the geyser Pass Trailhead. No trailhead temperature available 7:00 a.m. 

Gold Basin and South Mountain:  19” of settled snow on the ground. 

Pre-Laurel Peak Weather Station (11,705’):  Heading up to work on the WX station today. Keep your fingers crossed.

Mountain Weather: (At 10,500’)

Today...Mostly cloudy with a 20 percent chance of rain and snow in the morning...Then partly cloudy in the afternoon. Highs in the 40s. Northwest winds 10 to 15 mph. Gusts up to 30 mph in the afternoon.
Tonight...Mostly clear. Lows 15 to 25. North winds 10 to 15 mph. Gusts up to 30 mph in the evening.
Saturday...Mostly sunny. Highs 35 to 45. Northeast winds 10 to 15 mph. Gusts up to 25 mph in the afternoon.
Saturday Night...Mostly clear. Lows 10 to 20. North winds 10 to 15 mph in the evening becoming light.
Christmas Day...Mostly sunny. Highs in the 40s.
Sunday Night...Partly cloudy. Lows 15 to 25. Highs 35 to 45.

 

Avalanche Conditions: (Link to the International Avalanche Danger Scale here)

 

For those who really dare to go out there…. Here is the avi report. As one might expect, on all the shady aspects, East thru NW facing there is extremely weak snow on the ground with a depth of anywhere from 8” to 24” or so. There are some higher density wind slabs on top of this weak faceted snow in some areas, particularly above tree line or in otherwise wind affected areas. On SE thru West facing slopes expect to find a collections of sun crusts, wind crusts and weak faceted snow, grass and rocks, all with-in a 6-12” layer of snow. There may be some supportable crusts to ski out there on wind packed ridgelines, but make sure you’re on your rock skis.

 These conditions make for a pretty negligible avalanche hazard throughout most of the range except on steep E thru NW facing slopes where weak, unconsolidated snow could accumulate into a loose snow avalanche or some odd pocket of wind slab hasn’t broken down into faceted snow yet. The BOTTOM Line is a MODERATE hazard on high elevation East through NW facing slopes and LOW hazard throughout the majority of the range