THIS AVALANCHE ADVISORY EXPIRED ON December 26, 2018 @ 6:14 am
Avalanche Advisory published on December 25, 2018 @ 6:14 am
Issued by Jeff Thompson - Idaho Panhandle Avalanche Center

Kootenai
Selkirks/Cabinets
St. Regis Basin/Silver Valley

bottom line

Merry Christmas backcountry friends! If you get out today to enjoy the backcountry, you may be greeted by sunshine and nice sliding conditions! Even though we'll have a break in the weather for the next 30 hours or so,  don't let your guard down! Remember: Persistant weak layers don't care that it's Christmas!  Don't let the avalanche grinch steal your fun today!

How to read the advisory

Kootenai
Selkirks/Cabinets
St. Regis Basin/Silver Valley

How to read the advisory

Merry Christmas backcountry friends! If you get out today to enjoy the backcountry, you may be greeted by sunshine and nice sliding conditions! Even though we'll have a break in the weather for the next 30 hours or so,  don't let your guard down! Remember: Persistant weak layers don't care that it's Christmas!  Don't let the avalanche grinch steal your fun today!

2. Moderate

?

Above Treeline
Heightened avalanche conditions on specific terrain features. Evaluate snow and terrain carefully; identify features of concern.

2. Moderate

?

Near Treeline
Heightened avalanche conditions on specific terrain features. Evaluate snow and terrain carefully; identify features of concern.

1. Low

?

Below Treeline
Generally safe avalanche conditions. Watch for unstable snow on isolated terrain features.
    Heightened avalanche conditions on specific terrain features. Evaluate snow and terrain carefully; identify features of concern.
Avalanche Problem 1: Wind Slab
  • Type ?
  • Aspect/Elevation ?
  • Likelihood ?
    Certain
    Very Likely
    Likely
    Possible
    Unlikely
  • Size ?
    Historic
    Very Large
    Large
    Small

Merry Christmas backcountry friends! If you get out today to enjoy the backcountry, you may be greeted by sunshine and nice sliding conditions! Even though we'll have a break in the weather for the next 30 hours or so,  don't let your guard down! Remember: Persistent weak layers don't care that it's Christmas!  Don't let the avalanche Grinch steal your fun today!

Avalanche Problem 2: Persistent Slab
  • Type ?
  • Aspect/Elevation ?
  • Likelihood ?
    Certain
    Very Likely
    Likely
    Possible
    Unlikely
  • Size ?
    Historic
    Very Large
    Large
    Small

Last season was a good example why we can't ever trust a buried weak layer. We're starting to sound like a broken record but still need to stress the importance of monitoring the buried weaknesses in the snow pack. There are 2 layers (buried surface hoar, crust layer) that are currently laying dormant but could spring into action anytime. Usually the change comes when there's a change in the snow pack or weather. I don't anticipate any of those changes in the next 24 hours, but keep that nugget tucked in your brain while snowmobiling or skiing today.

recent observations

There hasn't been any report of new avalanche activity in the forecast area. The last avalanche activity we've heard about occurred in wind loaded areas near a ridgeline and near mid-slope rock outcroppings.

Weather and CURRENT CONDITIONS
weather summary

Enjoy the short break of sunshine and visibility before heading back into snowy weather

Weather observations from the Region
0600 temperature: 25 deg. F.
Max. temperature in the last 24 hours: 30 deg. F.
Average wind direction during the last 24 hours: NW
Average wind speed during the last 24 hours: 12 mph
Maximum wind gust in the last 24 hours: 18 mph
New snowfall in the last 24 hours: 0 inches
Total snow depth: 161cm inches
Two-Day Mountain Weather Forecast Produced in partnership with the Spokane NWS
For 2000 ft. to 4000 ft.
Tuesday Tuesday Night Wednesday
Weather: Mostly sun Fog / freezing fog chance of snow
Temperatures: 35 deg. F. 24 deg. F. 32 deg. F.
Wind Direction: N N SW
Wind Speed: 5-10 2-7 1-5
Expected snowfall: 0 in. 0 in. >1'' in.
For 4000 ft. to 6000 ft.
Tuesday Tuesday Night Wednesday
Weather: Sunny! Increasing clouds Snow
Temperatures: 25 deg. F. 16 deg. F. 21 deg. F.
Wind Direction: N NW SW
Wind Speed: 5-10 7-12 7-11
Expected snowfall: 0 in. 0 in. 1'' in.
Disclaimer

Avalanche conditions change for better or worse continually. Backcountry travelers should be prepared to assess current conditions for themselves, plan their routes of travel accordingly, and never travel alone. Backcountry travelers can reduce their exposure to avalanche hazards by utilizing timbered trails and ridge routes and by avoiding open and exposed terrain with slope angles of 30 degrees or more. Backcountry travelers should carry the necessary avalanche rescue equipment such as a shovel, avalanche probe or probe ski poles, a rescue beacon and a well-equipped first aid kit.  For a recorded version of the Avalanche Advisory call (208)765-7323.