Yellowstone National Park, Wyoming

Regional Weather Alerts


Alert: Severe Thunderstorm Warning
Area(s): Garfield, MT
Effective: 2026-08-18 @ 2:20 pm -> 2026-08-18 @ 2:45 pm
Onset: 2026-08-18 @ 2:20 pm -> 2026-08-18 @ 2:45 pm
Severity: Severe
Certainty: Observed
Urgency: Immediate
Issued By: NWS Glasgow MT on 2026-08-18 @ 2:20 pm
Headline: Severe Thunderstorm Warning issued August 18 at 1:20PM MDT until August 18 at 1:45PM MDT by NWS Glasgow MT
Description: SVRGGW

The National Weather Service in Glasgow has issued a

* Severe Thunderstorm Warning for...
South central Garfield County in northeastern Montana...

* Until 145 PM MDT.

* At 120 PM MDT, a severe thunderstorm was located 17 miles south of
Edwards, or 33 miles southwest of Jordan, moving east at 20 mph.

HAZARD...Quarter size hail.

SOURCE...Radar indicated.

IMPACT...Damage to vehicles is expected.

* This severe thunderstorm will remain over mainly rural areas of
south central Garfield County.