Severe Thunderstorm and Excessive Rainfall Potential for the Central U.S. Today

Severe thunderstorms with a threat for large hail, isolated damaging winds and possibly a tornado are expected in parts of eastern Colorado today from mid afternoon to early evening. Several days of heavy rainfall will begin today over the western Gulf Coast where Flood Watches and excessive rainfall outlooks have been issued for today, Saturday, and Sunday. Read More >

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Last Map Update: Thu, May 21, 2026 at 3:44:19 pm CDT

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National Weather Service Austin/San Antonio, TX

National Weather Service Houston/Galveston, TX

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National Weather Service Brownsville/Rio Grande Valley, TX

Flood Watch

Flash Flood Safety

Flood Watch

Rainfall Forecast

Beachcast

Know what to do in case you encounter a flash flood. Get to higher ground, don't drive into water, and stay informed.

A flood watch has been issued for all of South Texas beginning late tonight and continuing through Monday. Multiple rounds of showers and storms are expected over the next 5 days, and with the rain we have already seen, flash flooding will be a concern.

A wet pattern will persist through the rest of this week and over the weekend. Much needed rainfall is expected across the area with additional amounts of 2-3 inches expected with localized totals over 4-6 inches. With repeated rounds of rain localized flash flooding continues to be possible if not already occurring.

There's likely to be showers and thunderstorms today, accompanied by a moderate rip current risk. Risk currents are still possible, especially near piers and jetties. Pease use extra caution if entering the waters.

*Hourly Weather Roundup ( )*
*Location*	*Sky/Weather*	*Temp*	*Dewpt*	RH	*Wind*	*Baro*	*Remarks*
Alice	N/A	N/A	N/A	N/A	N/A	N/A	N/A
Beeville	N/A	N/A	N/A	N/A	N/A	N/A	N/A
Corpus Christi	N/A	N/A	N/A	N/A	N/A	N/A	N/A
Corpus Christi NAS	N/A	N/A	N/A	N/A	N/A	N/A	N/A
Cotulla	N/A	N/A	N/A	N/A	N/A	N/A	N/A
Kingsville NAS	N/A	N/A	N/A	N/A	N/A	N/A	N/A
Laredo	N/A	N/A	N/A	N/A	N/A	N/A	N/A
Port Lavaca	N/A	N/A	N/A	N/A	N/A	N/A	N/A
Rockport	N/A	N/A	N/A	N/A	N/A	N/A	N/A
Victoria	N/A	N/A	N/A	N/A	N/A	N/A	N/A
Note: "N/A" or "MISG" will be displayed if values are not available. In the LOCATION column, click on links for a list of recent observations at sites of interest. In the WIND column, VRB is "variable" and G is "gust". Wind speeds are in MPH. In the BARO (pressure) column, values are in inches. In the REMARKS column, HX is "heat index", WCI is "wind chill index", and VSB is "visibility" (if shown).

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Severe Thunderstorm and Excessive Rainfall Potential for the Central U.S. Today

NWS Corpus Christi