Winter Storm Warning
* WHAT...Heavy snow. Additional snow accumulations between 7 and 17
inches. Winds gusting as high as 40 mph.
* WHERE...Bear River Range.
* WHEN...Until 5 AM MST Thursday.
* IMPACTS...Travel could be very difficult.
From: Feb 17, 2026 22:45
Until: Feb 18, 2026 19:45
Winter Weather Advisory
* WHAT...Snow. There is a lull in snowfall this afternoon, however
an additional 5 to 12 inches is possible starting tonight and
continuing into early Thursday morning. Locally higher amounts are
possible in the Big Holes and along the Montana border. Winds
gusting as high as 40 mph at times are possible.
* WHERE...Beaverhead - Lemhi Highlands, Big Hole Mountains,
Centennial Mountains - Island Park, Bear Lake Valley, Blackfoot
Mountains, and Caribou Range.
* WHEN...Until 5 AM MST Thursday.
* IMPACTS...Travel could be very difficult to impossible. The
hazardous conditions could impact the Tuesday evening and
Wednesday morning commutes.
From: Feb 17, 2026 22:45
Until: Feb 18, 2026 19:45
Winter Weather Advisory
* WHAT...Snow. Snow accumulations between 4 and 9 inches. Winds
gusting as high as 45 mph.
* WHERE...Teton Valley, Franklin/Eastern Oneida Region, and Marsh
and Arbon Highlands.
* WHEN...Until 5 AM MST Thursday.
* IMPACTS...Travel could be very difficult to impossible. The
hazardous conditions could impact the Tuesday evening and
Wednesday morning commutes. Gusty winds could bring down tree
branches.
From: Feb 17, 2026 22:45
Until: Feb 18, 2026 19:45
Avalanche Watch
AVAPIH
* WHAT...Avalanche watch. Heavy snowfall and strong winds are
increasing avalanche danger across northern Utah and southeast
Idaho. Expect dangerous and complex avalanche conditions to
develop on many slopes this week, with large natural and human
triggered avalanches likely.
* WHERE...The Bear River Range and Wasatch Mountains.
* WHEN...6 AM MST Tuesday through 6 AM MST Wednesday.
* IMPACTS...Dangerous avalanche conditions are expected to develop
on many slopes. Avalanches can be triggered on slopes steeper
than 30 degrees. They may also be triggered remotely from a
distance or from below.
From: Feb 17, 2026 12:52
Until: Feb 18, 2026 13:00
Wind Advisory
* WHAT...West winds 25 to 35 mph with gusts up to 50 mph expected.
* WHERE...Eastern Magic Valley, Shoshone/Lava Beds, Lower Snake
River Plain, Raft River Region, and Southern Hills/Albion
Mountains.
* WHEN...From 9 AM to 8 PM MST Wednesday.
* IMPACTS...Gusty winds could make driving difficult, especially for
high profile vehicles. Unsecured objects may be blown around.
Pockets of blowing and drifting snow are possible where snow left
on the ground exists after it has ended.
From: Feb 17, 2026 19:22
Until: Feb 18, 2026 13:00
Air Stagnation Advisory
* WHAT...Poor air quality will continue. This is due to an inversion
and stagnant air conditions near the surface that will continue to
trap pollutants.
* WHERE...Franklin/Eastern Oneida Region and Lower Snake River Plain.
* WHEN...Until noon MST Monday.
* IMPACTS...Periods of air stagnation can lead to the buildup of
pollutants near the surface.
From: Jan 30, 2026 20:04
Until: Feb 02, 2026 19:00
Air Stagnation Advisory
* WHAT...Stagnant conditions will persist due to little vertical
mixing and light winds. Degraded air quality is expected to
continue as pollutants remained trapped near the surface.
* WHERE...Franklin/Eastern Oneida Region and Lower Snake River Plain.
* WHEN...Until noon MST Tuesday.
* IMPACTS...Periods of air stagnation have led to the buildup of
pollutants near the surface.
From: Jan 19, 2026 23:14
Until: Jan 20, 2026 19:00
Wind Advisory
* WHAT...West winds 25 to 35 mph with gusts up to 55 mph expected.
* WHERE...Eastern Magic Valley, Raft River Region, and Southern
Hills/Albion Mountains.
* WHEN...From 6 AM this morning to 4 PM MST this afternoon.
* IMPACTS...Gusty winds could make driving difficult, especially for
high profile vehicles. Unsecured objects may be blown around.
From: Jan 08, 2026 08:51
Until: Jan 08, 2026 23:00
Winter Weather Advisory
* WHAT...Snow expected. Total snow accumulations between 6 and 15
inches at pass level and 4 to 8 inches below pass level. Winds
gusting as high as 35 mph.
* WHERE...Bear River Range and Caribou Range.
* WHEN...From 5 AM early this morning to 5 AM MST Thursday.
* IMPACTS...Travel could be very difficult. The hazardous conditions
could impact the Wednesday morning and evening commutes.
From: Jan 07, 2026 08:22
Until: Jan 07, 2026 22:15
Winter Weather Advisory
* WHAT...Snow expected. Total snow accumulations between 6 and 15
inches at pass level and 4 to 8 inches below pass level. Winds
gusting as high as 35 mph.
* WHERE...Bear River Range and Caribou Range.
* WHEN...From 5 AM Wednesday to 5 AM MST Thursday.
* IMPACTS...Travel could be very difficult. The hazardous conditions
could impact the Wednesday morning and evening commutes.
From: Jan 06, 2026 19:31
Until: Jan 07, 2026 12:15
Winter Weather Advisory
* WHAT...Snow. Additional snow accumulations between 2 to 6 inches
below 7000 feet, including Ketchum and Stanley, as well as Pine
Creek Pass. Above 7000 feet, 10 to 20 inches. This includes
Galena, Banner and Emigration Summits. Highest amounts will be
above pass level.
* WHERE...Big Lost Highlands/Copper Basin, Sawtooth/Stanley Basin,
Sun Valley Region, Big Hole Mountains, and Bear River Range. This
includes ID 36 over Emigration Summit, ID 31 over Pine Creek Pass,
ID 75 over Galena Summit, and ID 21 over Banner Summit.
* WHEN...Until 3 PM MST Monday.
* IMPACTS...Travel could become very difficult at times. The
hazardous conditions could impact the Monday morning commute.
From: Jan 04, 2026 08:44
Until: Jan 04, 2026 22:00
Winter Weather Advisory
* WHAT...Snow. 3 to 6 inches for elevations below 7000 feet. This
includes Stanley and Ketchum. Above 7000 feet, snowfall amounts of
1-2 feet are likely through Monday afternoon including on Galena
and Emigration Summits.
* WHERE...Big Lost Highlands/Copper Basin, Sawtooth/Stanley Basin,
Sun Valley Region, Big Hole Mountains, and Bear River Range.
* WHEN...Until 3 PM MST Monday.
* IMPACTS...Travel could be very difficult. The hazardous conditions
could impact the Monday morning commute.
From: Jan 03, 2026 20:20
Until: Jan 04, 2026 12:00
Winter Weather Advisory
* WHAT...Snow expected. Total accumulation of 5 to 10 inches,
including Emigration Summit, with locally higher amounts up to 16
inches above pass level.
* WHERE...Bear River Range.
* WHEN...Until 11 AM MST Friday.
* IMPACTS...Roads, and especially bridges and overpasses, will
likely become slick and hazardous. Travel could be very difficult.
From: Jan 01, 2026 20:52
Until: Jan 02, 2026 18:00
Winter Weather Advisory
* WHAT...Snow expected. Total accumulation of 5 to 10 inches,
including Emigration Summit, with locally higher amounts up to 16
inches above pass level.
* WHERE...Bear River Range including ID 36 over Emigration Summit.
* WHEN...From 2 PM this afternoon to 11 AM MST Friday.
* IMPACTS...Roads and bridges will likely become slick and
hazardous. Travel could be difficult.
From: Jan 01, 2026 07:40
Until: Jan 01, 2026 22:00
