Idaho, Wyoming, Montana Moderate Special Weather Statement | Effective 08/17/2026 14:08
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.
If outdoors, consider seeking shelter inside a building.