Central Montana Thunderstorms Fire Up 80 MPH Gust Hammers — SevereWX

Central Montana Thunderstorms Fire Up 80 MPH Gust Hammers

Scattered thunderstorms are flickering to life across portions of central Montana this evening, packing a punchy severe gust threat up to 80 mph.

SPC's Mesoscale Discussion 1615 highlights early convective initiation along the eastern edge of a cloud shield tied to a 500 mb wind maximum grazing the northern Rockies. Surface temps near 95°F mingle with mid-50s to lower 60s°F dewpoints, fueling over 1000 J/kg MLCAPE. Steep temperature/dewpoint spreads and a deeply mixed boundary layer set the stage for evaporative cooling to drive intense downdrafts in heavier storm cores.

The primary hazard is severe wind gusts of 65-80 mph, with isolated severe hail up to 1.25 inches also in play. If storm coverage expands, a Severe Thunderstorm Watch becomes likely (60% probability).

This setup impacts areas from near Great Falls eastward, per the lat/lon polygon, under WFOs BYZ, GGW, and TFX. On an enhanced risk day for the region, these storms could rattle central Montana through 2345Z.

Peak Threats:

Stay weather-aware if you're in central Montana—monitor radar and have a severe weather plan ready. Secure outdoor items, seek shelter indoors away from windows, and check updates from local NWS offices.