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. |