Headline:
Special Weather Statement issued August 18 at 2:21PM MDT by NWS Riverton WY
Event:
Special Weather Statement
Urgency:
Expected
Effective:
August 18, 2026 - 1:21pm
Expires:
August 18, 2026 - 1:45pm
Description:
At 220 PM MDT, Doppler radar was tracking a strong thunderstorm over
Madison, which is 11 miles east of West Yellowstone, moving southeast
at 30 mph.
HAZARD...Wind gusts up to 50 mph and half inch hail.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects. Minor hail damage to vegetation is
possible.
This strong thunderstorm will be near...
Madison, Gibbons Falls, and Firehole Canyon around 225 PM MDT.
Fountain Paint Pot around 235 PM MDT.
Instruction:
If outdoors, consider seeking shelter inside a building.
Persons in campgrounds should consider seeking sturdy shelter until
this storm passes.
Area Description:
Yellowstone National Park
Forcast Office:
NWS Riverton WY
Sender:
w-nws.webmaster@noaa.gov