textproduct: Corpus Christi

KEY MESSAGES

Issued at 546 PM CDT Wed Sep 9 2026

- Moderate to occasionally Extreme risk of heat-related impacts through the work week with an increased Extreme risk this weekend.

- Low to medium rain chances Wednesday through Friday, then low to very low chances by the weekend.

- Elevated Fire Weather Friday-Monday.

DISCUSSION

Issued at 123 PM CDT Wed Sep 9 2026

Not much change to the forecast with rain chances in the morning and then again with the afternoon seabreeze on Thursday. Rainfall amounts so far with today's precip has generally remained under 0.5 inch with 1-2 inch amounts with locations seeing multiple showers/storms and any stronger ones.

PREVIOUS DISCUSSION...

A mid level inverted trough of low pressure is forecast to move over S TX today, which will provide mid/upper level support for convective development, mainly along the daily sea breeze. With the deeper moisture and the weakest capping inversion expected across the Victoria Crossroads, probabilities will be highest up to 60% with lower probabilities south and west. The lowest chance will be across the Rio Grande Plains. Rainfall totals Through through Friday are expected to be generally less than 0.5 inch, but with PWATs of 2.0-2.3 inches, a few stronger storms may produce 1-2 inches. Rain chances are progged to decrease through the weekend as mid level ridging builds back across S TX.

With the ridge comes hotter temperatures and higher heat indices. An Extreme risk of heat related impacts are forecast across most of S TX by the weekend. Although, heat indices up to 113 may occur Thursday, it is expected to be isolated with short duration, thus Heat Advisories are less likely to be needed. However, by Friday and into the weekend the duration of heat indices of 110+ across a larger area may warrant daily Heat Advisories, possibly into early next week.

AVIATION

(00Z TAFS) Issued at 600 PM CDT Wed Sep 9 2026

Scattered showers and thunderstorms are moving west toward the Rio Grande this afternoon. The convection is expected to wane this evening around 02Z. Redevelopment along the coast and up toward the Victoria Crossroads is expected early Thursday morning, then spreading west with the sea breeze through the afternoon. Have included PROB30 groups to address the convection with timing in the morning for VCT and CRP then later as the sea breeze travels west. Some storms may produce wind gusts 30-35 knots. Outside of the convection, generally VFR conditions can be expected. There is the potential for brief patchy fog from ALI to VCT early Thursday morning leading to MVFR VSBYs between 09-13Z.

MARINE

Issued at 123 PM CDT Wed Sep 9 2026

Light to gentle (BF 2-3) south to southeast flow expected through Thursday, becoming gentle to moderate by Friday and continuing through the weekend. An occasional fresh (BF 5) breeze south of Port Aransas is expected over the weekend. Seas 1-2 feet will increase to 2-4 feet this weekend. There will be low to medium rain chances through Friday.

PRELIMINARY POINT TEMPS/POPS

Corpus Christi 78 96 79 97 / 10 20 0 10 Victoria 75 98 76 100 / 30 40 10 30 Laredo 79 103 80 105 / 20 10 0 0 Alice 75 100 76 102 / 10 20 10 10 Rockport 80 93 81 93 / 30 40 10 10 Cotulla 77 102 78 103 / 20 10 0 0 Kingsville 77 99 77 100 / 0 20 0 10 Navy Corpus 81 91 82 91 / 20 20 10 10

CRP WATCHES/WARNINGS/ADVISORIES

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