


Severe Thunderstorm Warning
Issued by NWS Great Falls, MT
Issued by NWS Great Falls, MT
647 WUUS55 KTFX 210009 SVRTFX MTC027-210130- /O.NEW.KTFX.SV.W.0159.250821T0009Z-250821T0130Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Warning National Weather Service Great Falls MT 609 PM MDT Wed Aug 20 2025 The National Weather Service in Great Falls has issued a * Severe Thunderstorm Warning for... Eastern Fergus County in central Montana... * Until 730 PM MDT. * At 608 PM MDT, a severe thunderstorm was located 11 miles southwest of Winifred, or 24 miles north of Lewistown, moving east southeast at 45 mph. HAZARD...60 mph wind gusts and quarter size hail. SOURCE...Radar indicated. IMPACT...Hail damage to vehicles is expected. Expect wind damage to roofs, siding, and trees. * Locations impacted include... Winifred, Grass Range, Roy, Fergus, Suffolk, Giltedge, 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 this storm. 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 this storm, 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 4685 10862 4731 10971 4757 10961 4765 10872 4762 10868 4761 10844 4758 10842 4760 10840 4757 10834 4758 10831 4732 10831 TIME...MOT...LOC 0008Z 279DEG 38KT 4741 10950 HAIL THREAT...RADAR INDICATED MAX HAIL SIZE...1.00 IN WIND THREAT...RADAR INDICATED MAX WIND GUST...60 MPH $$ RCG