Missouri Severe Thunderstorm Warning | Effective 04/17/2026 16:46

Headline: 
Severe Thunderstorm Warning issued April 17 at 6:46PM CDT until April 17 at 7:30PM CDT by NWS St Louis MO
Event: 
Severe Thunderstorm Warning
Urgency: 
Immediate
Effective: 
April 17, 2026 - 4:46pm
Expires: 
April 17, 2026 - 5:30pm
Description: 
SVRLSX The National Weather Service in St Louis has issued a * Severe Thunderstorm Warning for... Southeastern Knox County in northeastern Missouri... Southern Lewis County in northeastern Missouri... Marion County in northeastern Missouri... Monroe County in northeastern Missouri... Northwestern Ralls County in northeastern Missouri... Shelby County in northeastern Missouri... * Until 730 PM CDT. * At 646 PM CDT, severe thunderstorms were located along a line from near Plevna to near Woodlawn, or along a line from 12 miles south of Edina to 16 miles southwest of Shelbina, moving east at 55 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... Clarence, Plevna, Woodlawn, Maud, Madison, Shelbyville, Shelbina, Granville, Steffenville, Paris, Emden, Philadelphia, Warren, Monroe City, Maywood, Santa Fe, Palmyra, Perry, Rensselaer and Spaulding. This includes the following State Parks... Mark Twain Lake Recreational Area.
Instruction: 
Seek shelter inside a well-built structure and stay away from windows. These storms are capable of producing damaging winds and large hail. Tornadoes can develop quickly from severe thunderstorms. Seek shelter immediately in an interior room on the lowest floor of a well-built structure. A Tornado Watch remains in effect until 1100 PM CDT Friday for a portion of northeast Missouri.
Area Description: 
Knox, MO; Lewis, MO; Marion, MO; Monroe, MO; Ralls, MO; Shelby, MO
Forcast Office: 
NWS St Louis MO
Sender: 
w-nws.webmaster@noaa.gov