textproduct: Corpus Christi

KEY MESSAGES

Issued at 129 PM CDT Wed Aug 5 2026

- Afternoon seabreeze driven showers and thunderstorms can be expected each day, with slightly higher chances in the Eastern CWA later this weekend.

- Moderate-major risk of heat-related impacts through the week, with peak heat indices 106 to 112.

- Locally elevated fire weather conditions over the western Brush Country through the week.

DISCUSSION

Issued at 123 AM CDT Wed Aug 5 2026

A persistent H5 ridge continues to linger over the Four Corners region. This ridge has been contracting over the past 48 hours, allowing weak mid-level energy to assist with isolated shower and thunderstorm development along the seabreeze this afternoon. As the week progresses, the aforementioned ridge is expected to expand heading into the weekend and an easterly wave looks to round the southern periphery of the Bermuda High into our eastern counties on Sunday. PoPs will be kept below 15% across the CWA into Saturday to account for seabreeze convection each afternoon. Can't rule out a 20- 25% chance around the Victoria Crossroads on Sunday and Monday as moisture from the easterly wave works inland.

Seasonably warm conditions stretch on through the forecast period, with high temperatures largely in the triple digits west of US-281 and and 90s elsewhere. Expect heat indices to consistently range between 100 to 110 degrees areawide, but remaining at or above 110 degrees for multiple hours would be isolated. Even though we may remain below heat advisory criteria, please remember to drink plenty of water and take frequent breaks in shade or A/C as we are entering the hottest time of the year climatologically in South Texas.

AVIATION

(18Z TAFS) Issued at 129 PM CDT Wed Aug 5 2026

VFR conditions will prevail through the period with periods of MVFR CIGs and VSBYs around daybreak once again improving by midmorning. Winds will be out of S-SE around 10-20 knots with gust up to 25 knots.

MARINE

Issued at 123 AM CDT Wed Aug 5 2026

A gentle to moderate onshore (largely from the S-SE) flow can be expected through the forecast period, occasionally fresh winds can be observed along the nearshore bays in the afternoon. Seas will generally range from 2-3 feet through the period. Daily rain chances will be under 20% through at least Thursday.

FIRE WEATHER

Issued at 123 AM CDT Wed Aug 5 2026

Min RHs will generally drop into the 25-35% range each afternoon through the week over the western Brush country and Rio Grande Plains. These low RHs combined with ERCs in the 55-75th percentile range will support localized elevated fire weather conditions over this region each day. Winds will gradually increase out of the E-SE in the 12 to 18 kt range during the afternoons. Daily rain chances will generally be 10% or less through the week.

PRELIMINARY POINT TEMPS/POPS

Corpus Christi 79 94 78 93 / 0 0 0 10 Victoria 76 97 76 96 / 0 10 0 20 Laredo 78 103 77 102 / 0 0 0 0 Alice 76 98 75 97 / 0 10 0 10 Rockport 82 91 80 91 / 0 0 0 0 Cotulla 77 102 76 101 / 10 0 0 0 Kingsville 77 96 76 95 / 0 10 0 10 Navy Corpus 82 90 81 89 / 0 0 0 0

CRP WATCHES/WARNINGS/ADVISORIES

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