textproduct: Brownsville/Rio Grande Valley

KEY MESSAGES

Updated at 145 PM CDT Fri Jul 24 2026

- Seasonable temperatures heading into the weekend. A warming trend will result in widespread triple-digit temperatures and heat index values for most of next week. - Moderate heat risk through the weekend, increasing to major heat risk next week.

- A moderate risk of rip currents along the lower Texas beaches through Saturday evening.

DISCUSSION

Issued at 145 PM CDT Fri Jul 24 2026

Deep South Texas will remain under the influence of ridging aloft through most of next week, which will maintain the summertime heat and generally rain-free conditions. High temperatures will be fairly close to seasonal normals to start the weekend, but a gradual uptick in temperatures is expected throughout the week with highs around 3-6 degrees above normal for late July. Expect widespread afternoon high temperatures in the triple-digits across most of Deep South Texas next week, with the exception being along the immediate coast and along the lower Texas beaches. Some areas across the region may approach daily record highs and highest lows as well. Persistent low level southerly to southeasterly flow will maintain elevated humidity across the region, and the combination of high humidity and above normal temperatures will result in heat index values ranging from 100-115 degrees each afternoon. Heat products are likely for portions or most of the region next week.

The combination of near-record temperatures and elevated humidity will result in a moderate (level 2 of 4) to major (level 3 of 4) Heat Risk next week. Warm overnight low temperatures will not allow for much recovery from the daytime heat and can result in an increased risk of heat-related illnesses. Continue to practice heat safety wear sunscreen, light-colored loose-fitting clothing, take frequent breaks in the shade or indoors, and stay hydrated!

AVIATION

(18Z TAFS) Issued at 145 PM CDT Fri Jul 24 2026

VFR will prevail through the forecast period at all TAF sites. Expect breezy southerly to southeasterly winds this afternoon, ranging from around 10-15 knots with gusts up to 25-30 knots. Winds should become light, generally near or below 5 knots, late this evening and overnight. Some patchy fog cannot be ruled out, but confidence is too low to warrant a mention with this TAF issuance.

MARINE

Issued at 145 PM CDT Fri Jul 24 2026

Small Craft Exercise Caution conditions will continue through late this evening over the Gulf waters and Laguna Madre with southerly to southeasterly winds around 15-20 knots and seas around 3-5 feet. Conditions should become more favorable over the weekend with low winds and seas. By early next week, a tightening pressure gradient may result in Small Craft Exercise Caution conditions each day from late morning to early afternoon. Otherwise, expect rain-free conditions.

PRELIMINARY POINT TEMPS/POPS

BROWNSVILLE 79 96 79 96 / 0 0 0 0 HARLINGEN 76 97 75 98 / 0 0 0 10 MCALLEN 79 102 78 103 / 0 0 0 0 RIO GRANDE CITY 78 102 77 102 / 0 0 0 0 SOUTH PADRE ISLAND 81 88 80 88 / 0 0 0 0 BAYVIEW/PORT ISABEL 78 93 78 94 / 0 0 0 0

BRO WATCHES/WARNINGS/ADVISORIES

TX...None. GM...None.