Yellowstone National Park, Wyoming

Regional Weather Alerts


     

Alert: Winter Storm Watch
Area(s): Southern Rocky Mountain Front; Upper Blackfoot and MacDonald Pass; Elkhorn and Boulder Mountains; Northwest Beaverhead County
Effective: 2026-03-30 @ 11:33 pm -> 2026-04-03 @ 7:00 am
Onset: 2026-04-02 @ 7:00 am -> 2026-03-31 @ 6:15 pm
Severity: Severe
Certainty: Possible
Urgency: Future
Issued By: NWS Great Falls MT on 2026-03-30 @ 11:33 pm
Headline: Winter Storm Watch issued March 30 at 10:33PM MDT until April 3 at 6:00AM MDT by NWS Great Falls MT
Description: * WHAT...Heavy, wet snow possible. Total snow accumulations between
7 and 14 inches possible at and above pass level with 3 to 7
inches at lower elevations. Winds could gust as high as 40 mph.

* WHERE...Elkhorn and Boulder Mountains, Upper Blackfoot and
MacDonald Pass, Southern Rocky Mountain Front, and Northwest
Beaverhead County.

* WHEN...From Thursday morning through late Thursday night.

* IMPACTS...Slushy snow covered roads and significantly reduced
visibility at times may make travel very difficult. Tire chains
may be required for some vehicles. Those in the backcountry should
ensure they are prepared for dangerous conditions.

* ADDITIONAL DETAILS...The combination of heavy, wet snow and winds
may cause power outages and tree damage.

Alert: Winter Storm Watch
Area(s): Cascade County below 5000ft; Judith Basin County and Judith Gap; Fergus County below 4500ft; Little Belt and Highwood Mountains; Snowy and Judith Mountains; Big Belt, Bridger and Castle Mountains; Gallatin and Madison County Mountains and Centennial Mountains
Effective: 2026-03-30 @ 11:33 pm -> 2026-04-03 @ 1:00 pm
Onset: 2026-04-02 @ 1:00 pm -> 2026-03-31 @ 6:15 pm
Severity: Severe
Certainty: Possible
Urgency: Future
Issued By: NWS Great Falls MT on 2026-03-30 @ 11:33 pm
Headline: Winter Storm Watch issued March 30 at 10:33PM MDT until April 3 at 12:00PM MDT by NWS Great Falls MT
Description: * WHAT...Heavy, wet snow possible. Total snow accumulations between
4 and 8 inches possible at elevations below 5,000 feet and 8 to 16
inches possible above 5,000 feet. Winds could gust as high as 40
mph.

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

* WHEN...From Thursday afternoon through Friday morning.

* IMPACTS...Slushy snow covered roads and significantly reduced
visibility at times may make travel very difficult. The hazardous
conditions could impact the Thursday evening and Friday morning
commutes. Those in the backcountry should ensure they are prepared
for dangerous conditions.

* ADDITIONAL DETAILS...The combination of heavy, wet snow and winds
may cause power outages and tree damage.

Alert: Special Weather Statement
Area(s): Powder River; Northern Big Horn; Southern Rosebud; Southern Big Horn; Bighorn Canyon; Pryor/Northern Bighorn Mountains; Northeast Bighorn Mountains; Sheridan Foothills
Effective: 2026-03-30 @ 10:51 pm
Onset: 2026-03-30 @ 10:51 pm -> 2026-03-31 @ 12:15 am
Severity: Moderate
Certainty: Observed
Urgency: Expected
Issued By: NWS Billings MT on 2026-03-30 @ 10:51 pm
Headline: Special Weather Statement issued March 30 at 9:51PM MDT by NWS Billings MT
Description: At 951 PM MDT, Doppler radar was tracking a line of snow showers in
Big Horn County moving southeast at 25 mph.

Locations impacted include...
Sheridan, Ranchester, Dayton, Lodge Grass, Busby, Lame Deer, Crow
Agency, Fort Smith, Big Horn, Clearmont, Birney, Rosebud
Battlefield Park, Kirby, Tongue River Reservoir, Parkman, Wyola,
Banner, Muddy Cluster, Burgess Junction and Birney Village.

Visibility may locally drop down to 1/4 mile at times.

Alert: Winter Weather Advisory
Area(s): Red Lodge Foothills
Effective: 2026-03-30 @ 2:52 pm -> 2026-03-31 @ 10:00 am
Onset: 2026-03-30 @ 7:00 pm -> 2026-03-31 @ 10:00 am
Severity: Moderate
Certainty: Likely
Urgency: Expected
Issued By: NWS Billings MT on 2026-03-30 @ 2:52 pm
Headline: Winter Weather Advisory issued March 30 at 1:52PM MDT until March 31 at 9:00AM MDT by NWS Billings MT
Description: * WHAT...Snow expected. Total snow accumulations between 2 and 6
inches, greatest near the Beartooth Mountains.

* WHERE...Red Lodge Foothills.

* WHEN...From 6 PM this evening to 9 AM MDT Tuesday.

* IMPACTS...Travel will become difficult this evening due to the snow
and poor visibility. Roads will likely become slick as temperatures
fall below freezing. This includes US-212 in the Red Lodge area.

* ADDITIONAL DETAILS...Precipitation may begin as rain late this
afternoon before changing over to wet snow early this evening.
Heaviest snow will be this evening.

Alert: Winter Weather Advisory
Area(s): Beartooth Foothills
Effective: 2026-03-30 @ 2:52 pm -> 2026-03-31 @ 10:00 am
Onset: 2026-03-30 @ 7:00 pm -> 2026-03-31 @ 10:00 am
Severity: Moderate
Certainty: Likely
Urgency: Expected
Issued By: NWS Billings MT on 2026-03-30 @ 2:52 pm
Headline: Winter Weather Advisory issued March 30 at 1:52PM MDT until March 31 at 9:00AM MDT by NWS Billings MT
Description: * WHAT...Snow expected. Total snow accumulations between 2 and 6
inches, greatest near the Beartooth Mountains.

* WHERE...Beartooth Foothills.

* WHEN...From 6 PM this evening to 9 AM MDT Tuesday.

* IMPACTS...Travel will become difficult this evening due to the snow
and poor visibility. Roads will likely become slick as temperatures
fall below freezing.

* ADDITIONAL DETAILS...Precipitation may begin as rain late this
afternoon before changing over to wet snow early this evening.
Heaviest snow will be this evening.

Alert: Lake Wind Advisory
Area(s): Central and Southeast Phillips; Central and Southern Valley; Petroleum; Garfield; McCone
Effective: 2026-03-30 @ 2:22 pm -> 2026-03-31 @ 4:00 am
Onset: 2026-03-30 @ 2:22 pm -> 2026-03-31 @ 4:00 am
Severity: Moderate
Certainty: Likely
Urgency: Expected
Issued By: NWS Glasgow MT on 2026-03-30 @ 2:22 pm
Headline: Lake Wind Advisory issued March 30 at 1:22PM MDT until March 31 at 3:00AM MDT by NWS Glasgow MT
Description: * WHAT...Northwest winds 15 to 25 mph with gusts up to 35 mph.

* WHERE...Fort Peck Lake.

* WHEN...Until 3 AM MDT Tuesday.

* IMPACTS...Strong winds will create wave heights up to 5 feet high.