402
NWUS55 KTFX 182346
LSRTFX
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREAT FALLS MT
446 PM MST THU DEC 18 2025
.TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON
.DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE.
..REMARKS..
0420 PM HIGH SUST WINDS 7 WSW HELENA 46.57N 112.17W
12/17/2025 M40 MPH LEWIS AND CLARK MT MESONET
NW ENERGY SENSOR 002NW HWY 12 MEASURED
SUSTAINED WINDS AVERAGED OVER AN HOUR OF 40
MPH.
AM
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