


Severe Thunderstorm Warning
Issued by NWS Great Falls, MT
Issued by NWS Great Falls, MT
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692 WUUS55 KTFX 172317 SVRTFX MTC027-180045- /O.NEW.KTFX.SV.W.0143.250817T2317Z-250818T0045Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Warning National Weather Service Great Falls MT 517 PM MDT Sun Aug 17 2025 The National Weather Service in Great Falls has issued a * Severe Thunderstorm Warning for... Fergus County in central Montana... * Until 645 PM MDT. * At 517 PM MDT, severe thunderstorms were located along a line extending from 9 miles east of Denton to 11 miles south of Moore, moving east at 35 mph. HAZARD...60 mph wind gusts. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. * Locations impacted include... Lewistown, Moore, Grass Range, Roy, Fergus, Forestgrove, Glengarry, Danvers, Suffolk, Giltedge, Heath, Hilger, and Christina. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. Cloud to ground lightning are 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. Torrential rainfall is occurring with these storms, and may lead to flash flooding. Do not drive your vehicle through flooded roadways. && LAT...LON 4731 10859 4727 10860 4727 10872 4710 10874 4708 10860 4678 10863 4677 10966 4718 10976 4719 10979 4743 10987 4768 10878 4765 10877 4762 10868 4761 10844 4757 10834 4758 10831 4732 10831 TIME...MOT...LOC 2317Z 266DEG 28KT 4734 10974 4681 10962 HAIL THREAT...RADAR INDICATED MAX HAIL SIZE...<.75 IN WIND THREAT...RADAR INDICATED MAX WIND GUST...60 MPH $$ RCG