textproduct: Corpus Christi

KEY MESSAGES

Issued at 121 AM CDT Fri Sep 18 2026

- Rain chances today could limit heat-related impacts

- Medium to high rain chances remain in the forecast through early this evening

- Minor coastal flooding remains a concern

DISCUSSION

Issued at 121 AM CDT Fri Sep 18 2026

Rain chances will remain in the 30-60% range tomorrow before decreasing this weekend to under 15% before rebounding back to the 20-30% range early to mid next week each afternoon with the seabreeze. While warm temperatures will remain warm, heat index values are expected to drop with the increased cloud cover lowering out heat risk for the next couple of days.

Will continue to monitor beach conditions over the next few days. A long easterly fetch will develop across the northwestern Gulf over the next few days. This could result in possible coastal flooding, especially during times of high tides and an increased risk of rip currents.

AVIATION

(06Z TAFS) Issued at 121 AM CDT Fri Sep 18 2026

VFR conditions will be expected to prevail though a low to medium chance for showers and thunderstorms will be possible at all sites through 00Z. Periods of lower VSBYs and CIGs will be expected around that activity. Winds will be mostly easterly around 10-15 knots decreasing during the evening into tonight.

MARINE

Issued at 121 AM CDT Fri Sep 18 2026

A gentle to moderate (BF3-4) breeze is expected, with occasional periods of fresh (BF 5) breezes through early next week. Low to medium (20-45%) rain chances tonight will increase to a medium to high (30-70%) chance by tomorrow, before decreasing to a low chance once again on Friday.

FIRE WEATHER

Issued at 121 AM CDT Fri Sep 18 2026

ERC values will remain in the 50-69th percentile for much of the region and remain at those levels through the end of the week. While ERC values will be decreasing, relative humidity values will be improving above 40% across all of South Texas Thursday into the weekend. Therefore, elevated fire weather conditions are not expected at this time.

PRELIMINARY POINT TEMPS/POPS

Corpus Christi 93 77 94 77 / 50 10 10 0 Victoria 98 72 98 73 / 20 0 10 0 Laredo 99 75 101 76 / 30 10 0 0 Alice 95 73 98 73 / 50 0 10 0 Rockport 93 79 92 79 / 40 20 20 10 Cotulla 97 75 99 75 / 30 10 0 0 Kingsville 95 75 96 75 / 60 10 10 0 Navy Corpus 90 81 90 81 / 40 10 10 10

CRP WATCHES/WARNINGS/ADVISORIES

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