Immediate

Responsive action SHOULD be taken immediately

Illinois, Missouri Flash Flood Warning | Effective 05/18/2026 18:09

At 809 PM CDT, Doppler radar indicated thunderstorms producing heavy rain across the warned area. Between 1 and 2 inches of rain have fallen. Additional rainfall amounts of 1 to 2 inches are possible in the warned area. Flash flooding is ongoing or expected to begin shortly. HAZARD...Flash flooding caused by thunderstorms. SOURCE...Radar indicated. IMPACT...Flash flooding of small creeks and streams, urban areas, highways, streets and underpasses as well as other poor drainage and low-lying areas.

Kansas Severe Thunderstorm Warning | Effective 05/18/2026 18:10

At 810 PM CDT, a severe thunderstorm was located near Newton, moving east at 40 mph. HAZARD...60 mph wind gusts and half dollar size hail. SOURCE...Radar indicated. IMPACT...Hail damage to vehicles is expected. Expect wind damage to roofs, siding, and trees. Locations impacted include... Newton, Hesston, Halstead, Marion, North Newton, Sedgwick, Peabody, Cottonwood Falls, Whitewater, Strong City, Florence, Potwin, Walton, Elbing, Burns, Cassoday, Bazaar, Elmdale, Matfield Green, and Cedar Point.

Missouri Severe Thunderstorm Warning | Effective 05/18/2026 18:10

At 810 PM CDT, a severe thunderstorm was located near Skidmore, or near Maryville, moving northeast at 35 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... Maryville, Savannah, Mound City, Oregon, Ravenwood, Maitland, Skidmore, Forest City, Fillmore, Barnard, Conception Junction, Bolckow, Graham, Pickering, Rosendale, Guilford, Clyde, Arkoe, Rea, and Quitman.

Pennsylvania Severe Thunderstorm Warning | Effective 05/18/2026 18:12

At 912 PM EDT, a severe thunderstorm was located over Cogan Station, moving northeast at 45 mph. HAZARD...60 mph wind gusts. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. Locations impacted include... Jersey Shore, Carroll, Avis, McElhattan, Collomsville, Loganton, Oval, and Salladasburg. For those driving on Interstate 80, this includes areas between the Lock Haven and Mile Run exits, specifically from mile markers 182 to 194. Stay inside a well built structure and keep away from windows.

Iowa Severe Thunderstorm Warning | Effective 05/18/2026 18:14

At 814 PM CDT, a severe thunderstorm was located near Mingo, or 10 miles west of Newton, moving northeast at 45 mph. HAZARD...60 mph wind gusts and nickel size hail. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. Locations impacted include... Altoona, Bondurant, Mitchellville, Colfax, Mingo, and Valeria. This includes Interstate 80 between mile markers 145 and 158. A Tornado Watch remains in effect until 1000 PM CDT for central Iowa. For your protection move to an interior room on the lowest floor of a building.

Kansas, Missouri Severe Thunderstorm Warning | Effective 05/18/2026 18:15

SVREAX The National Weather Service in Pleasant Hill has issued a * Severe Thunderstorm Warning for... South central Doniphan County in northeastern Kansas... Atchison County in northeastern Kansas... Southwestern Buchanan County in northwestern Missouri... Northwestern Platte County in west central Missouri... * Until 900 PM CDT. * At 815 PM CDT, a severe thunderstorm was located near Nortonville, or 7 miles north of Valley Falls, moving east at 30 mph. HAZARD...60 mph wind gusts and quarter size hail. SOURCE...Radar indicated.

Missouri Flood Warning | Effective 05/18/2026 18:16

...The Flood Warning continues for the following rivers in Missouri... Crooked River near Richmond affecting Ray County. * WHAT...Minor flooding is forecast. * WHERE...Crooked River near Richmond. * WHEN...From Tuesday afternoon to late Wednesday night. * IMPACTS...At 21.0 feet, Water begins to overtop a gravel road about 1 mile south of the F and B Highway intersection. * ADDITIONAL DETAILS... - At 7:30 PM CDT Monday the stage was 5.9 feet. - Forecast...The river is expected to rise above flood stage early

Kansas, Missouri Severe Thunderstorm Warning | Effective 05/18/2026 18:17

At 816 PM CDT, severe thunderstorms were located along a line extending from near Savannah to Elwood to Rushville, moving east at 65 mph. HAZARD...70 mph wind gusts and quarter size hail. SOURCE...Automated weather station. At 813 pm, the St. Joseph Airport reported a 61 mph wind gust. IMPACT...Hail damage to vehicles is expected. Expect considerable tree damage. Wind damage is also likely to mobile homes, roofs, and outbuildings. Locations impacted include...

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

...The Flood Warning is extended for the following rivers in Missouri... Blackwater River near Blue Lick affecting Saline and Cooper Counties. * WHAT...Minor flooding is forecast. * WHERE...Blackwater River near Blue Lick. * WHEN...From Tuesday morning to Saturday afternoon. * IMPACTS...At 29.0 feet, Livestock in pastures along the river may be endangered. Extensive damage also occurs to cropland and pasture. * ADDITIONAL DETAILS... - At 7:45 PM CDT Monday the stage was 10.5 feet.

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

...The Flood Warning is extended for the following rivers in Missouri... Blackwater River at Valley City affecting Pettis and Johnson Counties. * WHAT...Moderate flooding is forecast. * WHERE...Blackwater River at Valley City. * WHEN...From late tonight to Thursday afternoon. * ADDITIONAL DETAILS... - At 8:00 PM CDT Monday the stage was 12.6 feet. - Forecast...The river is expected to rise above flood stage late tonight to a crest of 28.3 feet tomorrow evening. It will then
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