Wind Advisory
* WHAT...West winds 20 to 30 mph with gusts up to 45 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 this morning to 8 PM MST this evening.
* 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 18, 2026 10:09
Until: Feb 19, 2026 03:00
Wind Advisory
* WHAT...West winds 20 to 30 mph with gusts up to 50 mph. Locally
higher gusts are possible in favored terrain areas.
* WHERE...Eastern Magic Valley, Shoshone/Lava Beds, Lower Snake
River Plain, Raft River Region, and Southern Hills/Albion
Mountains.
* WHEN...Until 8 PM MST this evening.
* 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 18, 2026 17:59
Until: Feb 19, 2026 03:00
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
Air Stagnation Advisory
* WHAT...Poor air quality will develop Wednesday and continue
through the weekend. 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 11 AM MST Monday.
* IMPACTS...Periods of air stagnation can lead to the buildup of
pollutants near the surface.
From: Feb 03, 2026 19:24
Until: Feb 09, 2026 18:00
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 Thursday.
* IMPACTS...Periods of air stagnation can lead to the buildup of
pollutants near the surface.
From: Jan 20, 2026 16:31
Until: Jan 22, 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
Air Stagnation Advisory
* WHAT...Stagnant conditions will persist due to little vertical
mixing and light winds. Degraded air quality is expected
throughout the week as pollutants remained trapped near the
surface.
* WHERE...Franklin/Eastern Oneida Region and Lower Snake River Plain.
* WHEN...Until noon MST Sunday.
* IMPACTS...Periods of air stagnation can lead to the buildup of
pollutants near the surface.
From: Jan 12, 2026 22:57
Until: Jan 18, 2026 19:00
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 Sunday.
* IMPACTS...Periods of air stagnation have led to the buildup of
pollutants near the surface.
From: Jan 16, 2026 16:56
Until: Jan 16, 2026 22:00
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 Sunday.
* IMPACTS...Periods of air stagnation can lead to the buildup of
pollutants near the surface.
From: Jan 16, 2026 09:39
Until: Jan 16, 2026 18:00
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. Additional snow accumulations between 4 and 8 inches
above 6 thousand feet and up to 4 inches below 6 thousand feet.
Winds gusting as high as 40 mph.
* WHERE...Sawtooth/Stanley Basin, Sun Valley Region, Big Hole
Mountains, and Centennial Mountains - Island Park.
* WHEN...Until 11 PM MST this evening.
* IMPACTS...Plan on slippery road conditions. 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 12
inches above 6 thousand feet and 4 to 8 inches below 6 thousand
feet. Winds gusting as high as 40 mph.
* WHERE...Sawtooth/Stanley Basin, Sun Valley Region, Big Hole
Mountains, and Centennial Mountains - Island Park.
* WHEN...From 5 PM this afternoon to 11 PM MST Wednesday.
* 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 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 up to 5 inches.
* WHERE...Centennial Mountains - Island Park.
* WHEN...Until 5 PM MST this afternoon.
* IMPACTS...Plan on slippery road conditions. The hazardous
conditions could impact the Tuesday morning and evening commutes.
From: Jan 06, 2026 08:22
Until: Jan 06, 2026 23:00
Winter Weather Advisory
* WHAT...Snow expected. Total snow accumulations between 1 and 8
inches.
* WHERE...Centennial Mountains - Island Park.
* WHEN...From 5 PM this afternoon to 5 PM MST Tuesday.
* IMPACTS...Plan on slippery road conditions. The hazardous
conditions could impact the Monday evening and Tuesday morning
commutes.
From: Jan 05, 2026 20:55
Until: Jan 06, 2026 12:00
Winter Weather Advisory
* WHAT...Snow. Additional snow accumulations between 1 and 3 inches.
* WHERE...Big Hole Mountains.
* WHEN...Until 11 PM MST this evening.
* IMPACTS...Plan on slippery road conditions.
From: Jan 05, 2026 17:01
Until: Jan 06, 2026 06:00
Winter Weather Advisory
* WHAT...Snow. Additional snow accumulations of 2 to 5 inches with
locally higher amounts above pass level.
* WHERE...Big Lost Highlands/Copper Basin, Sawtooth/Stanley Basin,
Sun Valley Region, and Big Hole Mountains.
* WHEN...Until 3 PM MST this afternoon.
* IMPACTS...Plan on slippery road conditions. The hazardous
conditions could impact the Monday morning commute.
From: Jan 05, 2026 09:08
Until: Jan 05, 2026 22:00
Winter Weather Advisory
* WHAT...Snow. Additional snow accumulations of 2 to 5 inches below
7000 feet with 6 to 12 inches above 7000 feet.
* WHERE...Big Lost Highlands/Copper Basin, Sawtooth/Stanley Basin,
Sun Valley Region, and Big Hole Mountains.
* WHEN...Until 3 PM MST Monday.
* IMPACTS...Plan on slippery road conditions. The hazardous
conditions could impact the Monday morning commute.
From: Jan 04, 2026 20:22
Until: Jan 05, 2026 12:00
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 Pine Creek Pass, with locally higher amounts up to 16
inches above pass level.
* WHERE...Big Hole Mountains.
* WHEN...Until 11 AM MST Friday.
* IMPACTS...Roads, and especially bridges and overpasses, will
likely become slick and hazardous. Plan on slippery road
conditions.
From: Jan 02, 2026 00:44
Until: Jan 02, 2026 18:00
