textproduct: Corpus Christi

KEY MESSAGES

Issued at 1247 PM CDT Mon Aug 3 2026

- Moderate-major risk of heat-related impacts through the week, with peak heat indices 106 to 112, and high to extreme WBGT values.

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

DISCUSSION

Issued at 122 AM CDT Mon Aug 3 2026

A fairly typical and benign summer-time setup can be expected the first full week of August as South Texas lies on the eastern flank of mid-lvl ridging over the desert SW. At the lower-lvls S-SE flow will gradually increase mid to late week as the subtropical highs builds westward into the Gulf. Outside of localized moisture pooling along the sea-breeze, ambient PWATs will generally run 1.4 to 1.7 inches through the period (generally 25th to 50th percentile for climo). This setup will maintain largely dry conditions with any storm chances confined to the sea breeze. Rain chances will generally be 10 percent or less (but not entirely zero) through the early week period, before likely creeping up somewhat (mainly over the Victoria Crossroads) late week as low-lvl southerly flow increases.

As mentioned in previous discussions we will remain seasonably warm through the forecast period with high temperatures largely in the triple digits west of I-77, and 90s elsewhere. These temperatures combined with lows barely clearing 80 degrees will maintain a moderate to major heat risk each day. Max heat indices will also flirt with heat advisory criteria each day in the mid-week period and short-fused advisories will need to be considered. Finally, for anyone doing strenuous activities in direct sunlight, WBGT values will peak in the high to extreme range, occasionally even exceeding 90 degrees. To sum it all up, make sure to stay hydrated, take frequent cooling breaks, and seek shade when possible as the dog days of summer are upon us in South Texas.

AVIATION

(18Z TAFS) Issued at 1247 PM CDT Mon Aug 3 2026

VFR conditions will prevail through the period though some periods of MVFR VSBYs will be possible around 08-12Z to the east (ALI and VCT). Winds are expected to be breezy this afternoon gusting to 20-25 knots before tapering this evening. Expect light winds overnight before breezy conditions return tomorrow.

MARINE

Issued at 122 AM CDT Mon Aug 3 2026

A gentle to moderate onshore (largely from the S-SE) flow can be expected through the forecast period. Seas will generally range from 2-3 feet through the period. Daily rain chances will be under 20% through at least Wednesday.

FIRE WEATHER

Issued at 122 AM CDT Mon Aug 3 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 55-70th percentile range will support localized elevated fire weather conditions over this region each day. Winds will generally remain light today before increasing out of the E-SE Tuesday into late week. Daily rain chances will generally be 10% or less through mid-week.

PRELIMINARY POINT TEMPS/POPS

Corpus Christi 78 94 79 94 / 0 10 0 10 Victoria 76 96 76 96 / 0 10 0 10 Laredo 79 104 79 104 / 10 0 0 0 Alice 76 98 76 98 / 0 10 0 10 Rockport 81 92 82 92 / 0 0 0 10 Cotulla 77 102 77 103 / 0 0 0 0 Kingsville 77 96 77 96 / 0 10 0 10 Navy Corpus 81 90 82 90 / 0 0 0 10

CRP WATCHES/WARNINGS/ADVISORIES

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