THIS AVALANCHE ADVISORY EXPIRED ON December 16, 2015 @ 9:07 am
Avalanche Advisory published on December 15, 2015 @ 9:07 am
Issued by -
bottom line

Today's Avalanche Hazard is MODERATE. Pockets of CONSIDERABLE can be found in upper elevation, wind loaded terrain.

How to read the advisory


  • Heightened avalanche conditions on specific terrain features. Evaluate snow and terrain carefully; identify features of concern.
Avalanche Problem 1: Wind Slab
  • Character ?
  • Aspect/Elevation ?
  • Likelihood ?
    Certain
    Very Likely
    Likely
    Possible
    Unlikely
  • Size ?
    Historic
    Very Large
    Large
    Small

Recent north winds have loaded south facing terrain in the last 36 hours. Keep an eye out for signs of windloading...i.e. smooth and rounded, sometimes called “pillows” chalky, dull in appearance.

Avalanche Problem 2: Normal Caution
  • Character ?

This past storm dropped around four feet of snow in the past week. If you were to trigger an avalanche it could be of devestating size. Remember the basics. Beacon, probe, and shovel mandatory.Ski/ride one at a time, stay in safe spots while others are skiing or hill climbing, and always keep an eye on your partner(s).

advisory discussion

Sorry for the delayed forecast this morning. We are doing some employee training with the new website. Also, working out a few bugs with email so sorry if you recieved multiple PAC emails.

Cheers

KM

recent observations

North winds have caused windloading onto the south and southeast portions of the compass.

weather

Clearing skies today, with increasing chances of showers through the week. A strong pacific storm is expected to arrive into the PAC advisory area Thursday into the weekend.

Two-Day Mountain Weather Forecast Produced in partnership with the NOAA-NWS
McCall Airport at 5021 feet.
  Tuesday Tuesday Night Wednesday
Weather: Mostly sunny, with a high near 28. North wind around 6 mph. Increasing clouds, with a low around 11. Light and variable wind. Snow showers. High near 26. Calm wind becoming southwest around 6 mph in the afternoon. Chance of precipitation is 80%. New snow accumulation of 1 to 2 inches possible.
Temperatures: High 28 deg. F. Low 11 deg. F. High 26 deg. F.
Wind direction: North Variable Southwes
Wind speed: 6 Light 6
Expected snowfall: 0 in. 0 in. 1-2 in.
Granite Mountain at 7700 feet.
  Tuesday Tuesday Night Wednesday
Weather: Isolated snow showers before 11am. Partly sunny. A 20 percent chance of snow showers after 11pm. Increasing clouds. Snow showers.
Temperatures: High 24 deg. F. Low 19 deg. F. Rising to 24 then falling to 17 deg. F.
Wind direction: North West to northwest West northwest
Wind speed: 10-14 11 13-16
Expected snowfall: 0 in. 0 in. 1-3 in.
Disclaimer

This avalanche advisory is provided through a partnership between the Payette National Forest and the Payette Avalanche Center. This advisory covers the West Central Mountains between Hard Butte on the north and Council Mountain on the south. This advisory applies only to backcountry areas outside established ski area boundaries. This advisory describes general avalanche conditions and local variations always occur. This advisory expires at midnight on the posted day unless otherwise noted. The information in this advisory is provided by the USDA Forest Service who is solely responsible for its content.