Headline:
Special Weather Statement issued August 17 at 3:08PM MDT by NWS Riverton WY
Event:
Special Weather Statement
Urgency:
Expected
Effective:
August 17, 2026 - 2:08pm
Expires:
August 17, 2026 - 2:45pm
Description:
At 308 PM MDT, Doppler radar was tracking a strong thunderstorm over
Gallatin Lake, which is 11 miles southwest of Mammoth, moving east 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...
Mammoth and Osprey Falls around 325 PM MDT.
Instruction:
If outdoors, consider seeking shelter inside a building.
Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.
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