Periods of locally heavy rain are expected across South Central Texas today through the weekend and may lead to flash or river flooding.
Area of Concern:
All of South-Central Texas
Threats & Impacts:
Rainfall: 2-4" totals possible today through Sunday with locally higher amounts 6-8"Several locations may experience minor flooding with flood waters capable of causing small streams, creeks, canals, and ditches to become swollen and overflow in a few places, but with little to no property damage. Quick ponding of water occurs at underpasses, low-lying spots, and poor drainage areas. Storm drains and retention ponds become near-full and begin to overflow in a few places. Flood waters may prompt brief road closures.
Timing and Overview:
Increasing moisture from the Gulf and the Pacific combined with an upper level storm system moving across the Southern Plains this weekend will generate periods of showers and thunderstorms capable of locally heavy rain through the weekend. Scattered showers and thunderstorms today and during the day Friday may produce minor flooding issues from intense rain rates, but the best potential for flash or river flooding will be Friday night into Saturday as the upper level storm system drags a cold front across the region. There is the potential that the cold front lifts back north into the Coastal Plains on Sunday, allowing the heavy rain threat to persist through the end of the weekend. A Flash Flood Watch may be needed at some point this weekend.