Overview
- Late Saturday into Sunday is the main rain window, with forecasts now showing widespread totals of 1 to 3 inches and isolated pockets that could receive 4 to 5 inches.
- The Weather Prediction Center has placed portions of South and Central Texas in a level 1–2 (marginal to slight) risk for excessive rainfall, an official product signaling an elevated chance of localized flash flooding.
- Forecasters say rain will fall at generally low, steady rates of about 0.2–0.5 inches per hour, which lowers the chance of widespread flash floods but still allows standing water and minor urban flooding to form.
- Impacts will be location-specific: Texas communities from the Borderland through the Rio Grande Valley and San Antonio area should prepare for travel disruption and ponding on roads, while much of the Gulf Coast and Southeast will remain dry and cooler under high pressure.
- Models show the system could become a cutoff or coastal low and linger in the region, so residents should watch local forecasts for updates and expect conditions to gradually dry and temperatures to rebound later next week.