textproduct: Corpus Christi

KEY MESSAGES

Issued at 620 PM CDT Sun Aug 16 2026

- Moderate to major risk of heat-related impacts through next week with peak afternoon heat indices around 110

- Monitoring daily elevated fire weather potential over the Brush Country

DISCUSSION

Issued at 123 PM CDT Sun Aug 16 2026

Satellite-depicted PWAT imagery shows a blob of drier air (1.2") moving westward into the Victoria Crossroads area leading to fewer clouds and near zero rain chances; whereas Deep South Texas has a slot of enhanced moisture with PWATs around 1.75", leading to a few showers along the seabreeze. I wouldn't be surprised if a couple showers pop up inland over the southern Coastal Plains this afternoon. I've increased rain chances from NBM to around 10% over the inland Coastal Plains during the afternoons Monday through Wednesday, mainly to accommodate the isolated shower development along the seabreeze.

A mid-level low over the Big Bend region will diffuse as it moves westward thanks to a mid-level ridge settling in over the southern Great Plains, leading to hot and generally rain-free conditions over South Texas through Thursday. A mid to upper level trough originating downstream of a closed low in Ontario will try to disrupt the eastern periphery of the ridge Friday and Saturday. No matter the case, this feature will likely not make much of a difference in South Texas' weather. In fact, a strong mid-level ridge from the Four Corners will replace and center itself over the southern Great Plains again early next week.

Heat will remain our greatest concern, all are urged to continue to practice heat safety. Drink plenty of water, take frequent breaks, limit outdoor exposure, and look before you lock your vehicles. Max temperatures will steadily range from 90-105 (coast to Rio Grande) each afternoon, with heat indices peaking between 108-112. Low temperatures will provide little to no relief, staying in the mid to upper 70s. We'll continue to monitor potential elevated fire weather conditions over the Brush Country each afternoon through this week as winds of 20 mph or greater coincide with relative humidity dropping below 30%.

AVIATION

(00Z TAFS) Issued at 620 PM CDT Sun Aug 16 2026

MVFR VSBYs/CIGs are possible again tonight during the early morning hours. Otherwise, VFR conditions and southeasterly winds gusting up to around 15-20KT tomorrow afternoon/evening.

MARINE

Issued at 123 PM CDT Sun Aug 16 2026

Light to gentle (BF 2-3) south to southeasterly winds are expected through Tuesday, becoming gentle to moderate (BF 3-4) mid to late half of this week. Rain chances will remain minimal through the period as high pressure maintains its influence across South Texas and the adjacent coastal waters.

PRELIMINARY POINT TEMPS/POPS

Corpus Christi 77 94 77 96 / 0 0 0 0 Victoria 73 99 75 99 / 0 10 0 10 Laredo 77 103 77 103 / 0 0 0 0 Alice 73 99 74 100 / 0 10 0 10 Rockport 80 92 81 92 / 0 0 0 0 Cotulla 75 103 76 103 / 0 0 0 0 Kingsville 75 97 75 98 / 0 10 0 10 Navy Corpus 81 90 81 90 / 0 0 0 0

CRP WATCHES/WARNINGS/ADVISORIES

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