Idaho, Wyoming, Montana Moderate Special Weather Statement | Effective 08/18/2026 15:32
At 432 PM MDT, Doppler radar was tracking a strong thunderstorm near
Southeast Arm Of Lake Yellowstone, which is 13 miles southwest of
East Entrance, moving southeast at 40 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 storm will remain over mainly rural areas of central Park and
east central Teton Counties.