Yellowstone National Park, Wyoming

Regional Weather Alerts


     

Alert: Winter Weather Advisory
Area(s): East Glacier Park Region
Effective: 2026-03-30 @ 4:31 am -> 2026-03-30 @ 11:00 am
Onset: 2026-03-30 @ 4:31 am -> 2026-03-30 @ 11:00 am
Severity: Moderate
Certainty: Likely
Urgency: Expected
Issued By: NWS Great Falls MT on 2026-03-30 @ 4:31 am
Headline: Winter Weather Advisory issued March 30 at 3:31AM MDT until March 30 at 10:00AM MDT by NWS Great Falls MT
Description: * WHAT...Snow, tapering to snow showers this morning. Additional
snow accumulations up to 2 inches. Winds gusting as high as 45 mph
along the east slopes.

* WHERE...East Glacier Park Region Zone.

* WHEN...Until 10 AM MDT this morning.

* IMPACTS...Plan on slippery road conditions. Gusty winds could
produce areas of blowing snow this morning.

Alert: Winter Weather Advisory
Area(s): Daniels; Sheridan; Western Roosevelt; Northern Valley
Effective: 2026-03-30 @ 1:55 am -> 2026-03-30 @ 11:00 am
Onset: 2026-03-30 @ 2:00 am -> 2026-03-30 @ 11:00 am
Severity: Moderate
Certainty: Likely
Urgency: Expected
Issued By: NWS Glasgow MT on 2026-03-30 @ 1:55 am
Headline: Winter Weather Advisory issued March 30 at 12:55AM MDT until March 30 at 10:00AM MDT by NWS Glasgow MT
Description: * WHAT...Mixed precipitation expected. Total snow accumulations up
to 2 inches and ice accumulations around a light glaze on roads.

* WHERE...Daniels, Northern Valley, Sheridan, and Western Roosevelt
Counties.

* WHEN...Until 10 AM MDT this morning.

* IMPACTS...Plan on slippery road conditions. The hazardous
conditions could impact the Monday morning commute.

Alert: Lake Wind Advisory
Area(s): Central and Southeast Phillips; Central and Southern Valley; Petroleum; Garfield; McCone
Effective: 2026-03-29 @ 11:42 pm -> 2026-03-31 @ 4:00 am
Onset: 2026-03-30 @ 1:00 pm -> 2026-03-30 @ 5:00 pm
Severity: Moderate
Certainty: Likely
Urgency: Expected
Issued By: NWS Glasgow MT on 2026-03-29 @ 11:42 pm
Headline: Lake Wind Advisory issued March 29 at 10:42PM MDT until March 31 at 3:00AM MDT by NWS Glasgow MT
Description: * WHAT...Northwest winds 15 to 25 mph with gusts up to 40 mph
expected.

* WHERE...Central and Southeast Phillips, Central and Southern
Valley, Garfield, McCone, and Petroleum Counties.

* WHEN...From noon Monday to 3 AM MDT Tuesday.

* IMPACTS...Strong lake winds could produce rough waves which can
overturn or swamp small craft.

Alert: Winter Weather Advisory
Area(s): West Glacier Region
Effective: 2026-03-28 @ 9:18 pm -> 2026-03-30 @ 11:00 am
Onset: 2026-03-29 @ 9:00 pm -> 2026-03-29 @ 9:30 pm
Severity: Moderate
Certainty: Likely
Urgency: Expected
Issued By: NWS Missoula MT on 2026-03-28 @ 9:18 pm
Headline: Winter Weather Advisory issued March 28 at 8:18PM MDT until March 30 at 10:00AM MDT by NWS Missoula MT
Description: * WHAT...Snow expected above 4000 feet. There is a likelihood of
minor to moderate winter weather impacts. Total snow accumulations
between 2 and 6 inches above 4000 feet. Total snow accumulations
of less than 2 inches below 4000 feet. Winds gusting as high as 35
mph.

* WHERE...Glacier National Park and Marias Pass.

* WHEN...From 8 PM Sunday to 10 AM MDT Monday.

* IMPACTS...For MODERATE winter weather impacts, expect disruptions
to normal activities. Hazardous traveling conditions. Use extra
caution while driving. The hazardous conditions could impact the
Monday morning commute, especially over higher passes.