Flash flood warnings are in effect across 12 states and the District of Columbia Wednesday, with 41 active alerts from the National Weather Service stretching from the Gulf Coast through Appalachia as heavy rain continues to overwhelm rivers, streams, and drainage systems.
South Texas is among the most immediately threatened areas. The National Weather Service office in Corpus Christi issued flash flood warnings for northwestern Bee and Live Oak counties through 9:00 a.m. CDT after thunderstorms dropped up to 3 inches of rain across the region. An additional 2 inches is possible before the storms move through, raising the risk of rapid rises on already-saturated ground. Nueces, Aransas, Calhoun, Jim Wells, Refugio, and San Patricio counties are also under alert in the same corridor. Residents near Corpus Christi should avoid low-water crossings and monitor local stream gauges closely.
Along the Gulf Coast, swollen rivers are forcing extended flood warnings across Mississippi and Louisiana. The Wolf River above Gulfport has reached moderate flood stage and is forecast to remain there through late Saturday morning, with impacts reaching across Harrison County. The Pearl River near Pearl River, Louisiana, is producing minor flooding along its lower course, affecting Pearl River, Hancock, and St. Tammany parishes — with that warning expected to hold into early next week. Residents near New Orleans in St. Tammany Parish should remain alert to rising tributary levels.
In Appalachia, flash flood warnings cover Harrison, Taylor, Jackson, and Roane counties in West Virginia, as well as Garrett County in Maryland. The warnings reflect a broad moisture pattern pushing heavy rainfall into terrain where runoff accelerates rapidly.
Beyond those focal points, the alert footprint includes Alabama, Alaska, Indiana, Kentucky, Ohio, Pennsylvania, South Carolina, Washington, and the District of Columbia — underscoring how widely a series of slow-moving, rain-heavy systems has spread across the country.
The National Weather Service repeats its standard but critical guidance: turn around, don’t drown when encountering flooded roads. The majority of flood fatalities occur in vehicles, where drivers routinely underestimate the force of moving water. Caution is also urged near riverbanks, which can erode quickly under high-flow conditions.
Conditions remain dynamic across all warned areas. Residents should check weather.gov for the latest river stage forecasts and warning status, as expiration times may be extended if rainfall continues above guidance levels.