Thunderstorm Wind in Teton County, Montana

The public reported several instances of damage on their farm, mainly due to strong wind gusts. The report included mention of roof and siding damage, in addition to barn door damage, a blown over auger, and a blown over 250 gallon container. Visibility was around 10 ft at the peak of the event and 0.80 inches of rain accumulated over 4 minutes. A follow up report from the same source mentioned upon further inspection, the combination of strong wind gusts and hail resulted in damage to crops.

The main day for severe weather was August 6th. A rather robust shortwave progressing across the region combined with ample surface heating to result in a round of severe thunderstorms across the region. Outflow from the previous days convection inhibited thunderstorms across most of the plains through the day, but thunderstorms forming off the high terrain of Glacier county spread southeastward with time and resulted in some damaging wind. Another rogue strong wind gust was observed on the 10th associated with a deep inverted-V sounding in Dillon.