Overview
- The National Weather Service issued a flood watch for counties along and west of the I‑35 corridor that runs through Austin and San Antonio, in effect through Friday night, while the Weather Prediction Center put Central Texas at a level 3 of 4 risk for excessive rainfall.
- Forecasters say the most intense period is expected Thursday into Friday, with widespread totals of roughly 2–5 inches and isolated spots forecast to receive 6–8 inches or more.
- The same moisture‑rich pattern is raising rain chances and localized flood concerns across parts of the Midwest, Great Lakes, South Florida and Southeast Texas, though exact heavy‑rain placement varies by model.
- Meteorologists trace the event to the collision of a Gulf moisture plume, remnants from the Pacific and an upper‑level low with a slow Pacific cold front, a setup that favors repeated storm training and sharp local variability in totals.
- Officials warn of street and flash flooding, possible river rises and coastal hazards in Florida and advise residents to monitor local NWS products for watches and warnings as a cold front late Friday into Saturday should gradually bring cooler, drier conditions.