Active Weather Alerts
Flash Flood Warning
Issued: 6:18 PM May. 19, 2026 – National Weather Service
...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 2 PM CDT THIS AFTERNOON FOR EAST CENTRAL COOKE AND GRAYSON COUNTIES... At 117 PM CDT, Doppler radar and automated rain gauges indicated a secondary round of thunderstorms producing heavy rain across the warned area. Between 1 and 4 inches of rain have fallen. Additional rainfall amounts up to 1 inch are forecast. Flash flooding is ongoing or expected to begin shortly. HAZARD...Flash flooding caused by thunderstorms. SOURCE...Radar and automated gauges. IMPACT...Flooding of small creeks and streams, urban areas, highways, streets, and underpasses as well as other poor drainage and low lying areas. Some locations that will experience flash flooding include... Sherman, Whitesboro, Denison, Van Alstyne, Howe, Pottsboro, Collinsville, Gunter, Callisburg, Knollwood, Dorchester, Lake Texoma, Eisenhower State Park, Randell Lake, Preston, Southmayd, Tioga, Sadler, Walnut Bend and Locust. PRECAUTIONARY/PREPAREDNESS ACTIONS... Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Be aware of your surroundings and do not drive on flooded roads. && FLASH FLOOD...RADAR AND GAUGE INDICATED
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