weather NWS severe Adams, IL; Knox, MO; Lewis, MO; Marion, MO; Shelby, MO June 11, 2026 at 4:05 AM

Flash Flood Warning issued June 10 at 11:05PM CDT until June 11 at 2:00AM CDT by NWS St Louis MO

FFWLSX The National Weather Service in St Louis has issued a * Flash Flood Warning for... Northwestern Adams County in west central Illinois... Southern Knox County in northeastern Missouri... Southern Lewis County in northeastern Missouri... Northwestern Marion County in north

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