Immediate

Responsive action SHOULD be taken immediately

Oklahoma Severe Flash Flood Warning | Effective 09/20/2026 17:18

At 718 PM CDT, Doppler radar indicated thunderstorms producing heavy rain across the warned area. Between 2 and 3.5 inches of rain have fallen. Flooding impacts will continue, but no additional rainfall is expected. 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.

Ohio Severe Severe Thunderstorm Warning | Effective 09/20/2026 17:24

At 824 PM EDT, a severe thunderstorm was located near Bellbrook, moving east at 30 mph. HAZARD...60 mph wind gusts. SOURCE...Radar indicated. IMPACT...Expect damage to trees and power lines. Locations impacted include... Kettering, Beavercreek, Xenia, Bellbrook, Waynesville, Wilberforce, Harveysburg, Spring Valley, Corwin, Centerville, Lytle, Mount Holly, Middleton Corner, Roxanna, Oakland, Caesar Creek State Park, Greene County Airport, Kingman, and Trebein. This includes I-71 in Ohio between mile markers 45 and 49.

Nebraska Severe Severe Thunderstorm Warning | Effective 09/20/2026 17:24

At 624 PM MDT, a severe thunderstorm was located near Sunol, or 13 miles east of Sidney, moving east at 20 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... Lodgepole and Sunol. For your protection move to an interior room on the lowest floor of a building.

Ohio Severe Severe Thunderstorm Warning | Effective 09/20/2026 17:25

At 825 PM EDT, a severe thunderstorm was located near Lebanon, moving southeast at 35 mph. HAZARD...60 mph wind gusts. SOURCE...Radar indicated. IMPACT...Expect damage to trees and power lines. Locations impacted include... Lebanon, Wilmington, Blanchester, Waynesville, Morrow, Clarksville, Harveysburg, Martinsville, Midland, Oregonia, Fort Ancient, Middleboro, Oakland, Westboro, Cuba, Genntown, State Route 350 at US Route 22, Morrisville, Ogden, and Cowan Lake State Park.

Illinois Severe Severe Thunderstorm Warning | Effective 09/20/2026 17:27

SVRILX The National Weather Service in Lincoln has issued a * Severe Thunderstorm Warning for... Northeastern Lawrence County in southeastern Illinois... South central Crawford County in east central Illinois... * Until 800 PM CDT. * At 727 PM CDT, a severe thunderstorm was located near Flat Rock, or 8 miles north of Lawrenceville, moving southeast at 30 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.

Florida Severe Severe Thunderstorm Warning | Effective 09/20/2026 16:32

At 632 PM CDT, severe thunderstorms were located along a line extending from 12 miles southeast of Cottonwood to 6 miles west of Chattahoochee, moving west at 10 mph. HAZARD...60 mph wind gusts. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. Locations impacted include... Marianna, Chattahoochee, Malone, Sneads, Cottondale, Grand Ridge, Greenwood, Alford, Campbellton, Bascom, Blue Spring, Union City, Lovedale, Dellwood, Star, Hornsville, Jacobs, Alliance, Compass Lake,

Ohio Severe Severe Thunderstorm Warning | Effective 09/20/2026 16:35

At 734 PM EDT, a severe thunderstorm was located near West College Corner, moving southeast at 20 mph. HAZARD...60 mph wind gusts and quarter size hail. SOURCE...Radar indicated. IMPACT...Minor hail damage to vehicles is possible. Expect wind damage to trees and power lines. Locations impacted include... Oxford, Eaton, Camden, Darrtown, College Corner, Somerville, Fairhaven, Hueston Woods State Park, West Florence, Morning Sun, Wheatville, Muttonville, Sugar Valley, and Lake Lakengren.

Colorado Severe Severe Thunderstorm Warning | Effective 09/20/2026 16:42

SVRPUB The National Weather Service in Pueblo has issued a * Severe Thunderstorm Warning for... Northwestern Prowers County in southeastern Colorado... Eastern Kiowa County in southeastern Colorado... Northeastern Bent County in southeastern Colorado... * Until 630 PM MDT. * At 542 PM MDT, a severe thunderstorm was located near Eads, or 26 miles southwest of Cheyenne Wells, moving south at 35 mph. HAZARD...Golf ball size hail and 60 mph wind gusts. SOURCE...Radar indicated.

Texas Severe Flash Flood Warning | Effective 09-20-2026 16:27

FFWFWD The National Weather Service in Fort Worth has issued a * Flash Flood Warning for... East Central Grayson County in north central Texas... * Until 800 PM CDT. * At 627 PM CDT, emergency management reported multiple un-passable roads and potential water rescues ongoing in Denison. Flash flooding is ongoing or expected to begin shortly. Stay off the roads unless absolutely necessary. HAZARD...Life threatening flash flooding. SOURCE...Emergency management reported. IMPACT...Life threatening flash flooding of creeks and streams,

Texas Severe Flash Flood Warning | Effective 09/20/2026 16:18

FFWFWD The National Weather Service in Fort Worth has issued a * Flash Flood Warning for... Central Grayson County in north central Texas... * Until 845 PM CDT. * At 618 PM CDT, emergency management reported multiple flooded roads and vehicles stuck in flood water in and around the Denison area. Flash flooding is already occurring in this area. Additional instances of flash flooding is imminent or occurring in the Sherman to Southmayd areas as well. HAZARD...Flash flooding caused by thunderstorms.
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