Expires:202506272015;Remove:202506272015;482520 WUUS53 KLSX 271927 SVRLSX ILC013-083-119-MOC113-183-272015- /O.NEW.KLSX.SV.W.0165.250627T1927Z-250627T2015Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Warning National Weather Service St Louis MO 227 PM CDT Fri Jun 27 2025 The National Weather Service in St Louis has issued a * Severe Thunderstorm Warning for... Southeastern Calhoun County in southwestern Illinois... Jersey County in southwestern Illinois... Northwestern Madison County in southwestern Illinois... Southeastern Lincoln County in east central Missouri... Northwestern Saint Charles County in east central Missouri... * Until 315 PM CDT. * At 227 PM CDT, a severe thunderstorm was located near Grafton, or 11 miles north of St. Charles, moving east at 25 mph. HAZARD...60 mph wind gusts and small hail. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. * Locations impacted include... O'Fallon, Wentzville, Alton, Godfrey, Troy, Jerseyville, St. Paul, Moscow Mills, Brighton, Winfield, Grafton, Elsah, West Alton, Josephville, Portage Des Sioux, Fountain N' Lakes, Chain of Rocks, Flint Hill, Foristell and Old Monroe. This includes the following State Parks... Pere Marquette State Park. This includes Interstate 70 in Missouri near exit 203. PRECAUTIONARY/PREPAREDNESS ACTIONS... Seek shelter inside a well-built structure and stay away from windows. This storm is capable of producing damaging winds. Continuous cloud to ground lightning is occurring with this storm. 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 also occurring with this storm and may lead to flash flooding. Do not drive your vehicle through flooded roadways. && LAT...LON 3901 9098 3920 9015 3900 9015 3900 9009 3895 9006 3880 9096 3887 9096 TIME...MOT...LOC 1927Z 254DEG 21KT 3895 9052 HAIL THREAT...RADAR INDICATED MAX HAIL SIZE...<1.00 IN WIND THREAT...RADAR INDICATED MAX WIND GUST...60 MPH $$ MRB