textproduct: Corpus Christi

KEY MESSAGES

Issued at 204 PM CDT Sat Aug 8 2026

- Moderate to major risk of heat-related impacts through the week, with peak heat indices 105 to 110, and high to extreme WBGT values.

- A low-medium chance (20-40%) of rain continues, mainly along the coast Sunday and Monday.

DISCUSSION

Issued at 204 PM CDT Sat Aug 8 2026

A few areas of vorticity will approach South Texas today through Monday as they ride around the periphery of mid-level high pressure. This, combined with PWAT values 1.9-2.1", will allow for the development of showers and thunderstorms today through Monday. For today, have a low mention of PoPs (~15%), mainly along the afternoon seabreeze. Chances increase Sunday and Monday afternoons to low to moderate (20-40%) as moisture increases and the area of vorticity moves closer to the area. These chances will mainly remain over the Coastal Plains, with most of the area remaining dry. By Tuesday, high pressure begins to settle in more firmly over the area, effectively ending our chances for precipitation through the upcoming week.

Temperatures will continue to be hot. Heat index values today and Sunday will generally be 105-109; while a few locations could reach 110-112, will not issue a Heat Advisory for this today since the conditions are not expected to be widespread. Heat index values increase Monday through next week, with Heat Advisories likely each day. The WBGT risks will be high to extreme across South Texas through the forecast period. Please remember to take the necessary precautions if you are working, playing, or practicing outside: Limit exposure to 1-2 hours, with at least 4 breaks/hour (~20 minutes total rest), limit your activity levels, drink plenty of water, and wear light, loose clothing.

Look before you lock!

AVIATION

(18Z TAFS) Issued at 204 PM CDT Sat Aug 8 2026

Generally VFR conditions expected through the TAF cycle. Have included a mention of VCSH for CRP this afternoon, with a PROB30 for VCT due to seabreeze convection. This could briefly lower ceilings and visibility to MVFR. Winds could be erratic around any thunderstorms. Winds will increase this afternoon, with gusts to 20- 25 kt, before becoming light overnight. Brief MVFR ceilings and visibility are expected for ALI and VCT Sunday morning between 10- 14Z.

MARINE

Issued at 204 PM CDT Sat Aug 8 2026

Light to moderate onshore breezes will increase to a more moderate breeze, with periods of fresh breezes, Tuesday through the end of the week. A low to medium (20-50%) chance of showers and thunderstorms will continue through early next week.

FIRE WEATHER

Issued at 204 PM CDT Sat Aug 8 2026

Min RHs will be in the 25-35% range each afternoon through the weekend in the western Brush country and Rio Grande Plains. These low RHs combined with ERCs in the 70-89th percentile range will lead to elevated fire weather conditions over this region each day. Winds will generally be around 15 mph, with wind gusts in the 20-25 mph range. A sea breeze shower cannot be ruled out this weekend though wetting rain chances will remain low.

PRELIMINARY POINT TEMPS/POPS

Corpus Christi 77 95 78 97 / 10 20 10 10 Victoria 75 95 76 95 / 10 30 10 20 Laredo 77 102 78 103 / 10 10 0 0 Alice 74 98 75 99 / 0 20 10 10 Rockport 80 92 80 92 / 10 30 10 20 Cotulla 76 101 77 102 / 0 0 0 0 Kingsville 75 96 76 97 / 0 30 10 10 Navy Corpus 80 90 81 89 / 10 20 10 10

CRP WATCHES/WARNINGS/ADVISORIES

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