Texas is facing the potential for "catastrophic" flooding as intense storms deliver heavy rainfall, with more expected. The National Weather Service issued a rare high-risk alert for excessive rain in parts of the state, particularly southwestern Texas, where some areas could receive an additional 10 to 20 inches of rain on top of existing downpours. Radar estimates show some counties have already received up to a foot of rain, leading to flooded roads and water rescues.

Gov. Greg Abbott stated that emergency services, including the National Guard, are prepared to respond. The Weather Service warned that significant flash flooding is forecast from Hill Country to the Rio Grande, with conditions potentially approaching catastrophic levels. This high-risk alert, which indicates a high confidence of flash flooding within 25 miles, is rarely issued and has historically preceded deadly floods.

While the most severe danger is in West Texas, flooding risks extend across the state and into Louisiana, impacting cities like San Antonio, Austin, and Houston. Experts at the Weather Prediction Center noted the moist atmosphere could lead to "surprises." Flood watches cover a third of Texas, with flash flood warnings active. This follows devastating flooding just over a year ago that killed over 130 people in Central Texas. While the rain should diminish by Thursday, leading to a drier weekend, the immediate threat remains significant.