Heavy rain threatens Memorial Day travel across Texas and the South

Flood watches stretched across parts of southern and southeastern Texas and southwest Louisiana as Memorial Day travel collided with a soaking wet pattern that left more than 33 million Americans in the bull’s-eye of a mounting flash-flood threat. AAA expected 45 million Americans to journey 50 miles or more between May 21 and May 25, a rush that could have made Memorial Day 2026 the busiest ever for travel just as repeated downpours threatened highways, airports and holiday plans.

The National Weather Service said showers and thunderstorms were expected from Texas to the Northeast through Tuesday, with heavy rain creating mainly localized flash flooding across the central Gulf Coast into the Appalachians. The Weather Channel said the most persistent shower and storm threat was concentrated from the western Gulf Coast and the lower Mississippi Valley into parts of the East. The Weather Prediction Center warned that eastern Texas and southern Louisiana faced the sharpest concern, especially where soils were already saturated from earlier rainfall, a setup that made every new round of storms more dangerous than the last.

The rainfall totals showed how quickly the ground had already been overwhelmed. FOX Weather reported 72-hour totals of 9.37 inches in Saraland, Alabama, 7.37 in Freeport, Texas, 7.17 in Collinsville, Oklahoma, 6.94 in Winona, Mississippi, 6.43 in Kiln, Mississippi and 6.08 in Sargent, Texas. In parts of Texas and Louisiana, forecasters said well over 5 to 8 inches of additional rain remained possible into holiday Monday, raising the odds that low-lying roads and drainage systems would fail again under a fresh burst of water.

The threat had already turned deadly and disruptive elsewhere in the South. A localized downpour triggered heavy flash flooding and water rescues in downtown Atlanta during the afternoon rush on Wednesday, a reminder of how quickly urban streets can become traps when storm bands stall over one place. FOX Weather also reported that one person died as a result of flooding in Mississippi on Monday. Gov. Tate Reeves said Mississippi was in contact with local emergency personnel and that additional resources were being deployed as the state dealt with the damage.

Forecasters said the risk could linger beyond the holiday because a second disturbance could stall over the Gulf Coast, reinforcing the same storm track and keeping renewed flash-flood concerns alive into the middle of the week. With saturated soils, repeated storms and a dense holiday travel calendar all overlapping, the most vulnerable places were the ones already soaked: eastern Texas, southern Louisiana, the lower Mississippi Valley and other flood-prone corridors stretching toward the Appalachians.