Excessive Rainfall and Potential Tropical Cyclone in the South; Severe Thunderstorms in the Midwest

Excessive rainfall may produce locally considerable flash flooding over parts of the northwestern Gulf Coast, lower Mississippi River Valley, and Deep South through Thursday. Potential Tropical Cyclone One is forecast to become a tropical storm (Arthur) as it moves along or just off the northwestern Gulf coast through Wednesday. An outbreak of severe weather is forecast in the Midwest Wednesday. Read More >

Click a location below for detailed forecast.

Last Map Update: Tue, Jun 16, 2026 at 5:38:31 pm CDT

Watches, Warnings & Advisories

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

Tropical Storm Warning

Flood Warning

Tropical Storm Watch

Coastal Flood Advisory

Small Craft Advisory

Flood Watch

Potential Tropical Cyclone One

Flood Watch

Small Craft Advisory

Coastal Flood Advisory

Heavy Rainfall and Flood Safety

Tonight

5 Day Outlook

Tropical Update 4PM CT: Potential Tropical Cyclone One is still forecast to become a tropical storm as it moves along or just off the northwestern Gulf coast through Wednesday. Impacts would be short lived and below Tropical Storm criteria along our coast. Our messaging remains the same; periods of intense rainfall through the rest of today/tonight could produce widespread flooding. Gusty winds and coastal flooding are also likely.

A Flood Watch continues for South Texas through Thursday morning. The combination of a moist tropical airmass, a stalling front, daily seabreeze circulations, and a broad area of low pressure over northeastern Mexico will result in heavy rain. Rainfall totals of generally 1-2 inches with isolated pockets up to 3-6 inches possible with rain rates of 2-4 inches per hour. If you come across a flooded road, remember: Turn Around, Don't Drown!

A Small Craft Advisory for all our waters is in effect until 7 PM tomorrow evening. Seas will be around 5-7 feet and winds will be around 10-20 knots with gusts to 35 knots.

A Coastal Flood Advisory is in effect until 7 PM Wednesday evening. Be aware that water will likely reach the dunes, especially during times around high tide, and beach roads may be inundated.

Be extra cautious this week as heavy rainfall could cause flooding issues. Don't drive into flood waters, be safe!

Clearing skies will accompany decreasing rain chances with activity tapering off from west to east tonight and overnight lows ranging in the 70s. While rainfall chances decrease, excessive rainfall and isolated flash flooding remains possible east of I-37.

Chances for showers and thunderstorms through mid-week with low to moderate chances Friday into the weekend. Highs generally range from the upper 80s to mid-90s, with triple digits forecast for Thursday.

*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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Excessive Rainfall and Potential Tropical Cyclone in the South; Severe Thunderstorms in the Midwest

NWS Corpus Christi