WWUS55 KTFX 200430 SVSTFX Severe Weather Statement National Weather Service Great Falls MT 1030 PM MDT Tue Aug 19 2025 MTC013-015-099-200445- /O.CON.KTFX.SV.W.0145.000000T0000Z-250820T0445Z/ Teton MT-Chouteau MT-Cascade MT- 1030 PM MDT Tue Aug 19 2025 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1045 PM MDT FOR SOUTHEASTERN TETON...WEST CENTRAL CHOUTEAU AND NORTHWESTERN CASCADE COUNTIES... At 1029 PM MDT, severe thunderstorms were located along a line extending from near Dutton to near Great Falls to 12 miles east of Cascade, moving east at 40 mph. HAZARD...70 mph wind gusts. SOURCE...Trained weather spotters. At 1027 PM MDT the Great Falls ASOS measured a 64 mph wind gust. IMPACT...Expect considerable tree damage. Damage is likely to mobile homes, roofs, and outbuildings. Locations impacted include... Great Falls, Black Eagle, Fort Shaw, Fort Shaw, Power, Malmstrom Afb, Stockett, Tracy, Vaughn, First Peoples Buffalo Jump State Park, Centerville, Sun River, Ulm, and Sand Coulee. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. Continuous cloud to ground lightning is occurring with these storms. Move indoors immediately. Lightning is one of nature's leading killers. Remember, if you can hear thunder, you are close enough to be struck by lightning. && LAT...LON 4782 11136 4752 11107 4726 11109 4738 11164 4744 11190 4778 11195 TIME...MOT...LOC 0429Z 270DEG 34KT 4782 11168 4751 11141 4734 11145 THUNDERSTORM DAMAGE THREAT...CONSIDERABLE HAIL THREAT...RADAR INDICATED MAX HAIL SIZE...<.75 IN WIND THREAT...OBSERVED MAX WIND GUST...70 MPH $$ IG