Avalanche Advisory Archive Pre-2016

Date Issued:2016-01-23
Danger:2
Trend:2
Probability:3
Size:1
Problem:3
Discussion:

The National Weather Service Forecasts-

TODAY...RAIN SHOWERS. SNOW LEVEL 1200 FEET. HIGHS AROUND 41.
SOUTHEAST WIND 15 TO 25 MPH WITH GUSTS TO 35 MPH... DECREASING TO 10 TO 15 MPH IN THE AFTERNOON.

TONIGHT...NUMEROUS RAIN SHOWERS IN THE EVENING...THEN RAIN LATE. SNOW LEVEL 1100 FEET. LOWS AROUND 35. SOUTHEAST WIND 10 TO 20 MPH.

SUNDAY...RAIN. SNOW LEVEL 1200 FEET. HIGHS AROUND 37. EAST WIND 10 TO 15 MPH.

SUNDAY NIGHT... MOSTLY CLOUDY. CHANCE OF RAIN. LOWS AROUND 33.
EAST WIND 10 TO 20 MPH.

Temperatures remain quite warm around the region. Eaglecrest this morning is 33f at the base. 31f mid mountain and 28f on top. The Mt Roberts Tram is now right at 32f. This is about a 2-3f degree drop over yesterday morning.

We have seen about 9mm of precipitation at the Mt Roberts Tram Summit since midnight. That left us about 4cm of new very wet snow. Eaglecrest is showing a little more precip with 13mm and 5cm of new snow at Powder Patch. The summit may have as much as double that amount in places.

Winds have been considerable during most of this event with the Tram blowing 15-25 out of ESE and Eaglecrest showing 20-25 out of SE.

This has given us the ability to build wind slabs on the lee slopes at upper elevations. These windslabs may be human triggered in places.

Depending on elevation and aspect you may also see wet avalanches. Both Wet Loose and Wet Slab Avalanches may be possible.

With less than .5\" of precip in the forecast for the next 24 hours natural avalanches are less likely.

With human triggered avalanches possible and natural avalanches not likely avalanche danger is Moderate at this time.

As we go into this afternoon and evening temperatures will start a slow falling trend and winds will die down decreasing avalanche danger overnight depending on how much new snow we get.

Have a great day.

Tip:

Here is a great video on how to perform an extended column test. This is used industry wide as one of our many stability tests.

https://utahavalanchecenter.org/how-do-extended-column-test