Brownsville/Rio Grande Valley, TX

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New: Preliminary Damage Survey Of Harlingen To Laureles Texas Microburst Event On May 9, 2026
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New: The 2026 Rio Grande Valley/Deep South Texas Hurricane Guide is Here!
Nuevo: Guia de Huracanes 2026 del Valle del Rio Grande/Extremo Sur de Texas es Aqui!
New: May-July 2026 Outlook: Hotter than normal temperatures are favored to continue into the upcoming summer season; precipitation remains a toss-up; drought, heat risk increases, occasional heavy rain/flooding, & water supply issues remain in focus

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Last Map Update: Thu, May 21, 2026 at 9:24:12 am CDT

Watches, Warnings & Advisories

National Weather Service Corpus Christi, TX

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Flash Flood Warning

Special Marine Warning

Flood Watch

Flood Watch in Effect through Monday Morning

Flood Watch vs Flood Warning

Heavy Rainfall And Flooding Possible This Weekend

Beachcast

5-Day Outlook

Today

3 to 6 inches of rainfall have already fallen over portions of Deep South Texas over the past 48 hours. Additional rainfall is expected through the weekend. Due to the soil already being saturated, there could be areas of isolated to scattered flash flooding in areas that receive heavier rainfall.

A flood watch is issued when flash flooding is possible. A flood warning is issued when flooding is happening or about the happen.

There is a Slight Risk (Level 2 of 4) for excessive rainfall across much of Deep South Texas on Saturday. Meanwhile, on Sunday, there is a Marginal Risk (Level 1 of 4) for excessive rainfall across much of the area. Rainfall over this time period will most likely be between 1 to 2 inches, with locally heavier amounts of 3 to 4 inches. Continue to check back for updates to the forecast.

There is a Moderate Risk of rip currents at area beaches today.

There is a low to medium chance of showers and thunderstorms each day through the Holiday weekend and into early next week. Locally heavy rainfall across Deep South Texas will be possible Saturday and Sunday.

Here are the forecast high temperatures and rain chances for Deep South Texas today.

*Current Observations ( )*
*Location*	*Sky/Weather*	*Temp*	*Dewpt*	RH	*Wind*	*Baro*	*Remarks*
Brownsville	N/A	N/A	N/A	N/A	N/A	N/A	N/A
Harlingen	N/A	N/A	N/A	N/A	N/A	N/A	N/A
McAllen	N/A	N/A	N/A	N/A	N/A	N/A	N/A
Bayview	N/A	N/A	N/A	N/A	N/A	N/A	N/A
Weslaco	N/A	N/A	N/A	N/A	N/A	N/A	N/A
Edinburg	N/A	N/A	N/A	N/A	N/A	N/A	N/A
Zapata	N/A	N/A	N/A	N/A	N/A	N/A	N/A
Hebbronville	N/A	N/A	N/A	N/A	N/A	N/A	N/A
Falfurrias	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
Kingsville	N/A	N/A	N/A	N/A	N/A	N/A	N/A
Alice	N/A	N/A	N/A	N/A	N/A	N/A	N/A
Notes: *In the Location column, click on links for a list of recent observations at sites of interest. A new window will open.* *In the Wind column, the letter indicates direction the wind blows from (N=North, E=East, S=South, W=West, NE=Northeast, etc). 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 the Heat Index and WCI is Wind Chill Index (if shown). These are "Feels Like" temperatures. VSB is Visibility. "N/A" will be displayed if values are not available.*

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