Trip Planning for Island Park

View Weather and Avalanche Log
24 Hour Snowfall and Wind
as of 5:00 am
Today0″ | NA
Apr 23 0″ | 3-71 W-E
Apr 22 0″ | 10-55 NW
Sawtelle Peak
9885′     04/23 at 10:00
32.2℉
S - 10mph
Gusts 44 mph
Sawtelle Snowfall
8750′     04/24 at 04:14
79.5″ Depth
0.0″New
White Elephant SNOTEL
7710′     04/24 at 03:00
40℉
56″ Depth
Primary Problem: Wet Snow
Bottom Line: Warm temperatures, wind-loading, and the possibility of rain and snow later in the week will drive avalanche problems. Wet snow avalanches will be the primary concern on most slopes. Get on to the snow early in the day when surface-level crusts are supportable and get off when the crust breaks down and more than the upper few inches of snow become slushy and wet. Relatively small wind-slab avalanches are possible on upper-elevation slopes that remain shady and cool. If the upper snowpack is dry, dig down and back off steep objectives if you find instability in your tests, observe shooting cracks or indications of fresh wind-loading. Reevaluate conditions when a mix of rain and snow moves into the area on Thursday and Friday.

Past 5 Days

Sat Apr 13

Considerable
Sun Apr 14

Considerable
Mon Apr 15

None
Fri Apr 19

None
Mon Apr 22

None

Relevant Avalanche Activity

Southern Madison
Quake Lake
Wet Slab Avalanche Above Quake Lake
Incident details include images
Quake Lake
WS-N-R2-D2-G
Coordinates: 44.8524, -111.3920
Caught: 0 ; Buried: 0

From IG: Wet slide to the ground above Quake Lake. 


More Avalanche Details

Wet slab above quake lake
Island Park
Arange Peak
Wet avalanches in Island Park
Incident details include images
Arange Peak
WL-N
Coordinates: 44.5263, -111.4650
Caught: 0 ; Buried: 0

From IG mesasge (4/6): "Some wet action at arange peak near Sawtell yesterday. From slope Dave and I did our first pit on Monday. Lots of release in that new old interface but didn’t see anything releasing down deeper."


More Avalanche Details

Wet avalanches in Island Park 04/05

Relevant Photos

Displaying 41 - 45
  • Ian in front of the Sawtelle weather station

    Went to do maintenance on the Sawtelle Snowfall weather station at 8800 ft just off the Sawtelle Mountain Road. Continuous snowcover starts around 8000 ft. At 8800 ft there is ~20" of snow with a mix of hard crusts and weak facets. These weak layers near the ground will be something to watch once snows again. Photo: GNFAC

  • Avalanches at Pine Creek

    From IG: “Pine creek today, some small wind slabs and a full depth wet slide off black mountain”

  • Avalanche at Pine Creek

    From IG: “Pine creek today (10/21), some small wind slabs and a full depth wet slide off black mountain”

  • Avalanche on Mt. Blackmore, hyalite

    From obs. "Was out alpine climbing today and observed the north face of Blackmore had slid already."

  • Powder Blast 2023

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Videos- Island Park

WebCams


US 20, Henry's Lake, South view

High Mountain Adventures, Island Park

Snowpit Profiles- Island Park

 

Select a snowpit on the map to view the profile image

Weather Stations- Island Park

Weather Forecast Island Park

Full Forecast, NOAA website
Extended Forecast for

10 Miles ESE Lakeview MT

  • Today

    Today: Partly sunny, with a high near 51. South southwest wind 6 to 11 mph, with gusts as high as 18 mph.

    Partly Sunny

    High: 51 °F

  • Tonight

    Tonight: A 40 percent chance of rain, mainly after midnight. Mostly cloudy, with a low around 35. South wind 6 to 11 mph.

    Chance Rain

    Low: 35 °F

  • Thursday

    Thursday: Rain likely, then showers and possibly a thunderstorm after noon. High near 44. Southeast wind 6 to 10 mph becoming northwest in the morning. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.

    Rain Likely
    then Showers

    High: 44 °F

  • Thursday
    Night

    Thursday Night: Rain showers before 3am, then rain and snow showers likely. Some thunder is also possible. Low around 32. South wind 6 to 8 mph becoming north after midnight. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.

    Showers then
    Rain/Snow
    Likely

    Low: 32 °F

  • Friday

    Friday: Rain and snow showers, becoming all rain after 3pm. Some thunder is also possible. High near 38. East northeast wind 6 to 10 mph becoming south southwest in the afternoon. Chance of precipitation is 100%. New snow accumulation of less than one inch possible.

    Rain/Snow

    High: 38 °F

  • Friday
    Night

    Friday Night: Rain and snow showers, becoming all snow after midnight. Some thunder is also possible. Low around 31. South southwest wind around 10 mph becoming north northeast after midnight. Chance of precipitation is 90%. New snow accumulation of 1 to 2 inches possible.

    Rain/Snow
    then Snow
    Likely

    Low: 31 °F

  • Saturday

    Saturday: Snow before 3pm, then rain and snow. High near 36. North wind around 11 mph becoming south southwest in the afternoon. Winds could gust as high as 18 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 2 inches possible.

    Snow then
    Rain/Snow

    High: 36 °F

  • Saturday
    Night

    Saturday Night: Rain and snow likely before midnight, then a chance of snow. Mostly cloudy, with a low around 29. West southwest wind 8 to 10 mph becoming east southeast after midnight.

    Rain/Snow
    Likely then
    Chance Snow

    Low: 29 °F

  • Sunday

    Sunday: Snow likely, mainly after noon. Mostly cloudy, with a high near 39.

    Snow Likely

    High: 39 °F

The Last Word

We began our daily forecasts on December 7. 130 daily forecasts and 464 reported avalanches later, we wrapped up our daily forecasting season on April 14th. While avalanches remain a concern until the snow is in the rivers, read our SEASON SUMMARY to look back at the heart of the 2023-24 avalanche year.

04 / 19 / 24  <<  
 
this forecast
 
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