Immediate

Responsive action SHOULD be taken immediately

Illinois, Missouri Severe Thunderstorm Warning | Effective 05/18/2026 04:28

At 628 AM CDT, a severe thunderstorm was located near Spencerburg, or 12 miles north of Vandalia, moving northeast at 45 mph. HAZARD...60 mph wind gusts. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. Locations impacted include... Center, Spencerburg, Frankford, New London, Ilasco, Hannibal, Saverton, Ashburn, Fall Creek, Seehorn, Hull, New Canton, Kinderhook, Payson, Rockport and Plainville. This includes the following State Parks... Fall Creek Scenic Overlook State Natural Area.

Missouri Severe Thunderstorm Warning | Effective 05/18/2026 04:32

At 632 AM CDT, a severe thunderstorm was located near Fulton, moving east at 45 mph. HAZARD...60 mph wind gusts and small hail. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. Locations impacted include... Fulton, Kingdom City, Auxvasse, Reform, Williamsburg, Shamrock and Martinsburg. This includes Interstate 70 in Missouri between exits 144 and 161. Seek shelter inside a well-built structure and stay away from windows. This storm is capable of producing damaging winds.

Illinois, Missouri Tornado Warning | Effective 05/18/2026 04:41

TORLSX The National Weather Service in St Louis has issued a * Tornado Warning for... Southeastern Adams County in west central Illinois... Central Pike County in west central Illinois... Northwestern Pike County in northeastern Missouri... Northeastern Ralls County in northeastern Missouri... * Until 730 AM CDT. * At 641 AM CDT, a severe thunderstorm capable of producing a tornado was located 6 miles north of Frankford, or 11 miles southeast of Hannibal, moving northeast at 40 mph. HAZARD...Tornado.

Illinois, Missouri Severe Thunderstorm Warning | Effective 05/18/2026 04:12

SVRLSX The National Weather Service in St Louis has issued a * Severe Thunderstorm Warning for... South Central Adams County in west central Illinois... Western Pike County in west central Illinois... Northeastern Audrain County in central Missouri... Southeastern Marion County in northeastern Missouri... Northwestern Pike County in northeastern Missouri... Ralls County in northeastern Missouri... * Until 700 AM CDT. * At 612 AM CDT, a severe thunderstorm was located near Perry, or 8

Missouri Severe Thunderstorm Warning | Effective 05/18/2026 04:18

SVRLSX The National Weather Service in St Louis has issued a * Severe Thunderstorm Warning for... South Central Audrain County in central Missouri... East Central Boone County in central Missouri... Callaway County in central Missouri... * Until 700 AM CDT. * At 618 AM CDT, a severe thunderstorm was located 8 miles north of New Bloomfield, or 7 miles west of Fulton, moving east at 45 mph. At 605 am, 71 mph winds were reported at the Columbia airport. HAZARD...70 mph wind gusts and quarter size hail. SOURCE...Radar indicated.

Missouri Flood Warning | Effective 05/18/2026 03:10

...The Flood Warning is extended for the following rivers in Missouri... Grand River near Pattonsburg affecting Gentry and Daviess Counties. * WHAT...Minor flooding is forecast. * WHERE...Grand River near Pattonsburg. * WHEN...Until Thursday morning. * IMPACTS...At 30.0 feet, Nearly all agricultural land and secondary roads in the Grand River floodplain flood. * ADDITIONAL DETAILS... - At 4:30 AM CDT Monday the stage was 24.8 feet. - Bankfull stage is 25.0 feet.

Illinois, Iowa Severe Thunderstorm Warning | Effective 05/18/2026 01:51

At 351 AM CDT, a severe thunderstorm was located over Bettendorf, moving northeast at 30 mph. HAZARD...60 mph wind gusts and half dollar size hail. SOURCE...Trained weather spotters. IMPACT...Hail damage to vehicles is expected. Expect wind damage to roofs, siding, and trees. Locations impacted include... Davenport, Moline, Rock Island, Bettendorf, Clinton, East Moline, Silvis, Eldridge, Camanche, Le Claire, Coal Valley, Hampton, Port Byron, Garden Plain, Rapids City, Albany, Princeton, Cordova, Riverdale, and McCausland.

Michigan Severe Thunderstorm Warning | Effective 05/18/2026 01:34

At 434 AM EDT, severe thunderstorms were located along a line extending from 12 miles southeast of Skanee to near Negaunee, moving east at 50 mph. HAZARD...Quarter size hail. SOURCE...Radar indicated. IMPACT...Damage to vehicles is expected. Locations impacted include... Ishpeming, Negaunee, Little Presque Isle, Big Bay, West Ishpeming, Halfway Village, Mountain Lake, Island Lake, Sugarloaf Mountain, and Silver Lake Basin. For your protection move to an interior room on the lowest floor of a building.

Michigan Severe Thunderstorm Warning | Effective 05/18/2026 01:06

At 405 AM EDT, a severe thunderstorm was located 7 miles east of Covington, or 17 miles south of L'anse, moving northeast at 55 mph. HAZARD...Quarter size hail. SOURCE...Radar indicated. IMPACT...Damage to vehicles is expected. Locations impacted include... Three Lakes, U.S. 141 between Covington and Amasa, Craig Lake State Park, Herman, Ned Lake, and King Lake. For your protection move to an interior room on the lowest floor of a building.
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