Yellowstone National Park, Wyoming

Regional Weather Alerts


     

Alert: Lake Wind Advisory
Area(s): Central and Southeast Phillips; Central and Southern Valley; Petroleum; Garfield; McCone
Effective: 2026-04-06 @ 4:14 am -> 2026-04-07 @ 5:00 am
Onset: 2026-04-06 @ 1:00 pm -> 2026-04-06 @ 5:00 pm
Severity: Moderate
Certainty: Likely
Urgency: Expected
Issued By: NWS Glasgow MT on 2026-04-06 @ 4:14 am
Headline: Lake Wind Advisory issued April 6 at 3:14AM MDT until April 7 at 4:00AM MDT by NWS Glasgow MT
Description: * WHAT...Southeast winds 15 to 25 mph with gusts up to 35 mph
expected.

* WHERE...Fort Peck Lake

* WHEN...From noon today to 4 AM MDT Tuesday.

* IMPACTS...Strong winds and rough waves on area lakes will create
hazardous conditions for small craft.

* ADDITIONAL DETAILS...Waves up to 4 feet are expected on Fort Peck
Lake this afternoon and tonight.

Alert: High Wind Watch
Area(s): Southwest Phillips
Effective: 2026-04-06 @ 4:14 am -> 2026-04-08 @ 1:00 pm
Onset: 2026-04-07 @ 4:00 pm -> 2026-04-06 @ 5:00 pm
Severity: Severe
Certainty: Possible
Urgency: Future
Issued By: NWS Glasgow MT on 2026-04-06 @ 4:14 am
Headline: High Wind Watch issued April 6 at 3:14AM MDT until April 8 at 12:00PM MDT by NWS Glasgow MT
Description: * WHAT...West winds 25 to 40 mph with gusts up to 60 mph possible.

* WHERE...Southwest Phillips County.

* WHEN...From Tuesday afternoon through Wednesday morning.

* IMPACTS...High winds may move loose debris, damage property, and
cause power bumps. Travel could be difficult, especially for high
profile vehicles.

Alert: High Wind Warning
Area(s): Northwest Beaverhead County; Beaverhead and Western Madison below 6000ft
Effective: 2026-04-06 @ 12:56 am -> 2026-04-07 @ 10:00 pm
Onset: 2026-04-07 @ 10:00 am -> 2026-04-06 @ 6:00 pm
Severity: Severe
Certainty: Likely
Urgency: Expected
Issued By: NWS Great Falls MT on 2026-04-06 @ 12:56 am
Headline: High Wind Warning issued April 5 at 11:56PM MDT until April 7 at 9:00PM MDT by NWS Great Falls MT
Description: * WHAT...Southwest to west winds 30 to 40 mph with gusts up to 65
mph possible.

* WHERE...Beaverhead and Western Madison below 6000ft and Northwest
Beaverhead County.

* WHEN...From 9 AM to 9 PM MDT Tuesday.

* IMPACTS...High winds may move loose debris, damage property and
cause power outages. Travel could be difficult, especially for
high profile vehicles.

Alert: High Wind Warning
Area(s): Madison River Valley
Effective: 2026-04-06 @ 12:56 am -> 2026-04-07 @ 10:00 pm
Onset: 2026-04-07 @ 10:00 am -> 2026-04-06 @ 6:00 pm
Severity: Severe
Certainty: Likely
Urgency: Expected
Issued By: NWS Great Falls MT on 2026-04-06 @ 12:56 am
Headline: High Wind Warning issued April 5 at 11:56PM MDT until April 7 at 9:00PM MDT by NWS Great Falls MT
Description: * WHAT...Southerly winds 30 to 40 mph with gusts up to 60 mph
possible. Winds will shift westerly late Tuesday afternoon.

* WHERE...Madison River Valley.

* WHEN...From 9 AM to 9 PM MDT Tuesday.

* IMPACTS...High winds may move loose debris, damage property and
cause power outages. Travel could be difficult, especially for
high profile vehicles.

Alert: High Wind Warning
Area(s): Eastern Toole and Liberty; Eastern Pondera and Eastern Teton; Western and Central Chouteau County; Cascade County below 5000ft; Judith Basin County and Judith Gap; Upper Blackfoot and MacDonald Pass; Gates of the Mountains; Little Belt and Highwood Mountains; Helena Valley; Big Belt, Bridger and Castle Mountains; Meagher County Valleys; Elkhorn and Boulder Mountains
Effective: 2026-04-06 @ 12:56 am -> 2026-04-07 @ 10:00 pm
Onset: 2026-04-07 @ 10:00 am -> 2026-04-06 @ 6:00 pm
Severity: Severe
Certainty: Likely
Urgency: Expected
Issued By: NWS Great Falls MT on 2026-04-06 @ 12:56 am
Headline: High Wind Warning issued April 5 at 11:56PM MDT until April 7 at 9:00PM MDT by NWS Great Falls MT
Description: * WHAT...Southwest to west winds 30 to 40 mph with gusts up to 75
mph possible. The strongest winds will occur along and west of the
Interstate 15 corridor and north of the Montana Hwy 200 corridor.

* WHERE...Portions of central and north central Montana.

* WHEN...From 9 AM to 9 PM MDT Tuesday.

* IMPACTS...Damaging winds may blow down trees and power lines.
Power outages are possible. Travel could be very difficult,
especially for high profile or light weight vehicles. Blowing dust
could reduce visibility at times.

* ADDITIONAL DETAILS...Blowing dust may significantly reduce
visibility at times, especially along Interstate 15 between Shelby
and the Canadian border.

Alert: High Wind Warning
Area(s): East Glacier Park Region; Northern High Plains; Eastern Glacier, Western Toole, and Central Pondera; Southern Rocky Mountain Front; Southern High Plains
Effective: 2026-04-06 @ 12:56 am -> 2026-04-07 @ 10:00 pm
Onset: 2026-04-07 @ 4:00 am -> 2026-04-06 @ 6:00 pm
Severity: Severe
Certainty: Likely
Urgency: Expected
Issued By: NWS Great Falls MT on 2026-04-06 @ 12:56 am
Headline: High Wind Warning issued April 5 at 11:56PM MDT until April 7 at 9:00PM MDT by NWS Great Falls MT
Description: * WHAT...West winds 40 to 50 mph with gusts up to 90 mph possible.

* WHERE...The Rocky Mountain Front and adjacent foothills and
plains, and Eastern Glacier, Western Toole, and Central Pondera
Counties.

* WHEN...From 3 AM to 9 PM MDT Tuesday.

* IMPACTS...High winds may move loose debris, damage property and
cause power outages. Travel could be difficult, especially for
high profile vehicles.

* ADDITIONAL DETAILS...Blowing dust may significantly reduce
visibility at times, especially along Interstate 15 between Shelby
and the Canadian border.

Alert: High Wind Watch
Area(s): Bears Paw Mountains and Southern Blaine; Fergus County below 4500ft; Snowy and Judith Mountains
Effective: 2026-04-06 @ 12:56 am -> 2026-04-08 @ 1:00 pm
Onset: 2026-04-07 @ 4:00 pm -> 2026-04-06 @ 6:00 pm
Severity: Severe
Certainty: Possible
Urgency: Future
Issued By: NWS Great Falls MT on 2026-04-06 @ 12:56 am
Headline: High Wind Watch issued April 5 at 11:56PM MDT until April 8 at 12:00PM MDT by NWS Great Falls MT
Description: * WHAT...West to northwest winds 30 to 40 mph with gusts up to 60
mph possible.

* WHERE...Snowy and Judith Mountains, Bears Paw Mountains and
Southern Blaine, and Fergus County below 4500ft.

* WHEN...From Tuesday afternoon through Wednesday morning.

* IMPACTS...High winds may move loose debris, damage property and
cause isolated power outages. Travel could be difficult,
especially for high profile vehicles.

Alert: High Wind Watch
Area(s): Judith Gap; Northern Sweet Grass; Melville Foothills; Southern Wheatland
Effective: 2026-04-05 @ 7:38 pm -> 2026-04-08 @ 1:00 am
Onset: 2026-04-07 @ 10:00 am -> 2026-04-06 @ 7:45 pm
Severity: Severe
Certainty: Possible
Urgency: Future
Issued By: NWS Billings MT on 2026-04-05 @ 7:38 pm
Headline: High Wind Watch issued April 5 at 6:38PM MDT until April 8 at 12:00AM MDT by NWS Billings MT
Description: * WHAT...West winds 30 to 40 mph with gusts up to 60 mph possible.

* WHERE...Judith Gap, Southern Wheatland, Melville Foothills, and
Northern Sweet Grass.

* WHEN...From Tuesday morning through Tuesday evening.

* IMPACTS...Strong crosswinds could make travel could be difficult
along US-191 from Big Timber through Harlowton, especially for high
profile vehicles.

* ADDITIONAL DETAILS...The strongest wind gusts are expected with a
cold front, Tuesday afternoon/evening.