US Forest Service Manti-La Sal National Forest

 Introduction:  Good morning, this is Max Forgensi with the USFS Manti-La Sal Avalanche Center with your avalanche and mountain weather advisory.  Today is Friday, March 3rd at 8:30 am. This advisory will expire in 24 hours.

 

WE HAVE ONE SPOT LEFT IN OUR AIARE LEVEL 2 CLASS WHICH BEGINS TODAY AT 5:00 PM.  COME AND JOIN THE FUN!  FOR MORE INFORMATION AND TO SIGN UP FOR THIS SPOT CALL US AT (435) 636-3363. 

 

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.

 

MLAC NEWS: We have started an observer page for folks to send us their backcountry observations. Report what you see in your backcountry travels HERE. Please send us your reports on avalanches, ski conditions, road conditions, snow pit profiles etc. Thanks! You can also report observations at 435-636-3363

  

General Conditions:

           It has been really windy up in the La Sal Mountains for the past 18 hours and getting stronger.  The winds have been coming from a very rare direction in this duration, from the SSE and averaging in the mid-twenties.  Temperatures have been warm at the Geyser Pass Trailhead as well.  Last night stayed above freezing.  A little to early for that to be happening if you ask me.  As a result, skiing conditions will be like your Mother’s meat casserole-you won’t know what is in the next bite until you try some or look real carefully.  I would ski conservatively and be careful once again of ground hazards.  We are only at 71% water equivalent for the La Sal Mountains so far this year. 

            The road to the Geyser Pass trailhead has been graded down low and plowed up high making for some great driving conditions.  The Nordic and Skate skiing conditions up to Geyser Pass and into Gold Basin will be wonderful today.  

 

  Mountain Weather: (At 10,500’)

Today: Partly cloudy, with a high near 43. Breezy, with a south wind between 15 and 25 mph, with gusts as high as 40 mph.
Tonight: Mostly cloudy, with a low around 22. Windy, with a south southwest wind between 25 and 30 mph.
Saturday: A 20 percent chance of snow showers. Mostly cloudy, then gradually becoming mostly sunny, with a high near 31. Breezy, with a southwest wind between 15 and 20 mph.
Saturday Night: Mostly clear, with a low near 17. Southwest wind around 15 mph.

                                                                                                                                                                                                                                            

Weather Station/ Location

Snow Depth (HS):  in./cm

New Snow (HN) in./cm

6:00 a.m. Temp (F)

Current Observations:  Wind, 48 hour snow

Geyser Pass Trailhead (9,600’): (snotel link)

26” 

0

34

~

Geyser Pass

 138 cm

0

N/a 

Deepest place these days 

Gold Basin and South Mountain

42”/105cm 

0

n/a

 

Pre-Laurel Peak Station (11,705’)

N/a 

N/a 

19

South-Southeast @ 28 gusts to 59 

 

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

 

Today we are going to look at two major factors related to avalanches.  On south and west aspects, crusts near the surface have been forming faceted crystals below them.  With the new snow on top of the crusts, this layering is failing easily with the pressure of a skier, and fast.  These thin sun-crusts could support you in places and fail in others.  It is not likely for a natural avalanche to occur on these aspects.  On the other side of the avalanche rose and onto your North and East aspects, it appears that this warm weather has helped stabilize the upper part of the snow pack.  Unfortunately, the lower half of the snow pack is still a cold faceted mess.  In places that have yet to “flush” out these depth hoar crystals, these slopes are still suspect for large climax avalanches that no-one would like to take a ride in.  Because both these areas are not very widespread, the BOTTOM LINE for today will be an avalanche danger of MODERATE on steep North-East aspects with the classic slab/weak layer (depth hoar)/bed surface (ground) with no anchors and pronounced trigger points.  Be careful on those South-West aspects where crust sandwiches are lying about as well. 

 

We need your observations! Call 435-636-3363 or use the link near the top of the page to get to the observers page! Yes, DO IT!

Take a look at a snow pit from our tour on 01/15/06 here.