The brief easing in the national flash flood emergency reversed sharply Wednesday, with the National Weather Service carrying 81 active Flash Flood Warnings across 12 states — up from 63 on Tuesday and the highest count of this multi-day event. The 12-state footprint, which now includes Alaska and Washington alongside the Gulf and Midwest states, marks an expansion from the 11-state spread tallied 24 hours earlier.
Southeast Texas emerged as the morning’s sharpest pressure point. The National Weather Service in League City issued warnings for Harris, Chambers, Liberty, and Brazoria counties, with Doppler radar confirming 2 to 3 inches of rain had already fallen across the warned area by early Wednesday. Streams are continuing to rise on excess runoff, and flooding of rivers, creeks, and low-lying roads is imminent or ongoing. Residents in the Houston weather metro should expect disrupted travel through at least mid-morning.
A significant new cluster emerged across east-central and southeastern Iowa, with the National Weather Service in Quad Cities issuing alerts for Cedar, Iowa, Johnson, Jones, Keokuk, Linn, Louisa, and Muscatine counties. Illinois counties bordering the Mississippi — including Mercer, Rock Island, Whiteside, Henry, Bureau, and Putnam — are also under active warnings. This Iowa-Illinois corridor was largely a secondary concern in Tuesday’s bulletin; it now anchors the northern edge of the event.
The Gulf Coast and Deep South corridor continues under sustained pressure. Alabama warnings extend from Choctaw and Washington counties in the state’s interior down through Clarke, Wilcox, Monroe, Conecuh, Butler, Crenshaw, Covington, and Escambia counties to the Mobile and Baldwin coastal zones — both inland and coastal sections carrying active alerts. The Florida panhandle adds to the Gulf Coast picture, with inland and coastal warnings in force for Santa Rosa, Okaloosa, and Escambia counties. Mississippi’s southern tier — Hancock, Pearl River, George, Greene, and Perry counties — remains active, as does St. Tammany Parish in Louisiana.
For Mobile weather and neighboring coastal communities, the threat combines saturated soils from days of prior rainfall with fresh storm cells moving onshore, heightening the risk of rapid runoff in areas already near capacity.
The National Weather Service urges all residents in warned areas to stay off flooded roadways. Most flood-related fatalities occur in vehicles — turn around, don’t drown.