textproduct: Corpus Christi

KEY MESSAGES

Issued at 123 PM CDT Tue Aug 11 2026

- Moderate to major risk of heat-related impacts into early next week, with peak afternoon heat indices of 110-115

- Slightly increased rain chances Friday and Saturday (20%), isolated streamer and seabreeze showers other days

DISCUSSION

Issued at 123 PM CDT Tue Aug 11 2026

A mid-level ridge centered over the northern Gulf Coast will continue to enforce hot and generally rain-free conditions through Thursday. We'll see those streamer clouds moving northward daily, with an occasional shower as the seabreeze pushes in, but moisture will remain near or below normal for August. An inverted shortwave trough will ride the southwestern edge of the ridge Friday, extending into South Texas. This will increase moisture to around the 75th percentile (2.0" PWAT) and with mid-level vorticity support, warrant mentionable shower and thunderstorm chances across the Coastal Plains (20%). Enhanced moisture can linger into Saturday, and allow a few more showers and thunderstorms to develop. Mid-level high pressure will move westward into the ARKLATEX region and promote another stretch of hot and mainly rain-free conditions.

Heat will remain our primary concern across South Texas. Each afternoon will be flirting with Heat Advisory criteria, with peak heat indices of 110-115 but uncertainties on the duration. No matter what, it will be hot and precautions are necessary for the moderate to major risk of heat-related impacts intact. Heat safety measures are encouraged, please remember to look before you lock and limit outdoor exposure.

AVIATION

(18Z TAFS) Issued at 123 PM CDT Tue Aug 11 2026

VFR conditions prevail across South Texas with breezy southeasterly winds sustained 15-20 knots with gusts 25-30 knots. Winds decrease tonight before brief periods of MVFR cigs and vsbys impact the Coastal Plains between 10-14Z, mainly impacting ALI/VCT. Given what happened this morning being similar, I wouldn't be surprised if we see MVFR CIGs roll into the northern Rio Grande Plains and impact COT between 13-15Z. Southeasterly winds pick back up mid-morning tomorrow.

MARINE

Issued at 123 PM CDT Tue Aug 11 2026

Moderate southeasterly flow will persist through this week for most of the waters. Bays and waters along the coast south of Port Aransas will have a fresh breeze during the afternoon and evening hours. Small Craft Advisories may be necessary Wednesday and Thursday for the aforementioned area. Winds weaken slightly heading into the weekend.

PRELIMINARY POINT TEMPS/POPS

Corpus Christi 79 94 79 94 / 0 0 0 0 Victoria 77 97 77 96 / 0 0 0 0 Laredo 78 105 78 105 / 0 0 0 0 Alice 75 101 75 100 / 0 0 0 0 Rockport 82 92 82 92 / 0 0 0 0 Cotulla 77 105 77 105 / 0 0 0 0 Kingsville 77 98 77 97 / 0 0 0 0 Navy Corpus 82 90 82 90 / 0 0 0 0

CRP WATCHES/WARNINGS/ADVISORIES

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