textproduct: Brownsville/Rio Grande Valley

KEY MESSAGES

Updated at 1232 PM CDT Sun May 17 2026

Key Messages:

* Persistent daily chances for rain, with the greatest threat for precipitation from Thursday through Saturday.

* Above normal daytime highs and overnight lows, with a Moderate to Major heat risk initially through Wednesday.

* A Moderate to High risk of rip currents at the local beaches.

* Small Craft Advisory conditions for mariners.

AVIATION

(18Z TAFS) Issued at 1232 PM CDT Sun May 17 2026

While the most of the afternoon should be mostly VFR, it is possible for periods of MVFR to occur with some lower ceilings. BRO is most likely to MVFR ceilings than HRL and MFE. By this evening more MVFR ceilings are expected to dominate the area. Southeasterly winds should remain gusty through most of the period due to enhanced pressure gradient over the region.

MARINE

Issued at 1232 PM CDT Sun May 17 2026

With the pressure gradient tightening over the Lower Texas waters, Small Craft Advisory is currently in place through 9 AM Monday, but could be extended even further as hazardous conditions could persist. The southeasterly winds are expected to be around 20 to 25 knots through much of the period.

PRELIMINARY POINT TEMPS/POPS

BROWNSVILLE 81 95 81 94 / 10 10 20 0 HARLINGEN 79 96 79 95 / 10 10 20 0 MCALLEN 80 98 80 97 / 20 10 20 0 RIO GRANDE CITY 79 99 79 98 / 20 10 30 10 SOUTH PADRE ISLAND 81 86 81 86 / 10 10 10 0 BAYVIEW/PORT ISABEL 80 93 80 92 / 10 10 10 0

BRO WATCHES/WARNINGS/ADVISORIES

TX...High Rip Current Risk from Monday morning through Monday evening for TXZ451-454-455.

GM...Small Craft Advisory until 9 AM CDT Monday for GMZ130-132-135- 150-155-170-175.