Threats & Impacts:
Rainfall Accumulation Through Thursday:
Less than 1 inch west of Highway 83, 1-3 inches for the I-35 corridor, 2-4 inches east of the I-35 corridor and 4-6 inches for the Coastal Plains. Isolated locations could exceed 8 inches (mainly in the Coastal Plains).
Timing and Overview:
Rainfall will be on the increase throughout the morning in the southern counties as widespread rain moves north from the Corpus Christi area. Rainfall accumulations have exceeded 4 inches there and this could be possible in the southern Coastal Plains counties later this morning. Therefore, a Flash Flood Watch has been issued for Karnes, DeWitt, and Lavaca County. The watch will remain in effect through Wednesday evening to account for additional rainfall on presumed saturated soils tomorrow. Minor flooding will be possible from the heavier cells outside of the areas within the watch. Rain chances will decrease on Thursday.
Additional Information Resources:
NWS Austin / San Antonio Webpage: https://www.weather.gov/sanantonio
Report Flooding to us on Twitter using: @NWSSanAntonio and #ewxspotter
Sign up to be Rainfall Observer: https://cocorahs.org/Application.aspx
AHPS River Forecasts: https://water.weather.gov/ahps2/index.php?wfo=ewx
NWS Austin / San Antonio
Weather Forecast Office
2090 Airport Road
New Braunfels, TX 78130
Including the cities of Karnes City, Cuero, and Hallettsville
316 AM CDT Tue Jun 19 2018
…FLASH FLOOD WATCH IN EFFECT THROUGH WEDNESDAY EVENING…
The National Weather Service in Austin/San Antonio has issued a
- Flash Flood Watch for a portion of south central Texas,
including the following areas, De Witt, Karnes, and Lavaca.
Through Wednesday evening
Widespread rain from an abundance of tropical moisture is
expected to impact the area through Wednesday evening. 3-6
inches of rain will be possible across the watch area with
isolated totals possibly exceeding 8 inches.
A Flash Flood Watch means that conditions may develop that lead
to flash flooding. Flash flooding is a very dangerous situation.
You should monitor later forecasts and be prepared to take action
should Flash Flood Warnings be issued.