textproduct: Corpus Christi

KEY MESSAGES

Updated at 233 PM CDT Mon Apr 27 2026

- Moderate to Major Heat Risk for South Texas today through Wednesday

- Low Rain/thunderstorm chances Mid-week and Moderate chances late in the week with the next front

- Marginal threat (1 out of 5) for severe storms on Wednesday.

DISCUSSION

Issued at 233 PM CDT Mon Apr 27 2026

A mid-level high South of Texas over central Mexico is currently promoting clearer skies and hotter temps through around mid-week when several disturbances in the mid-level flow including several lows and troughing over the western CONUS will suppress the high over Mexico, allowing for PVA to potentially move across South Texas. Currently, confidence in this solution is low due to disparity between operational models. However, if this pans out there should be enough divergence aloft to result in some storms around mid-week becoming strong to severe across much of our CWA.

SPC has placed most of South Texas except the Coastal Bend in a Marginal Risk for severe thunderstorms Wednesday afternoon/evening. In addition there's a low possibility for locally heavy rainfall mainly closer towards EWX's CWA.

Meanwhile, temperatures for the first half of this week will range in the mid 80s along the coast to around 100 degrees out west. There's a moderate to major heat risk during this time as heat indices will generally range from 105-110 with heat index values around 100 closer to the coast. We strongly encourage the practice of heat safety in these conditions. Take frequent breaks and remember to stay hydrated, check those backseats, and avoid long exposure in these temperatures. For more information be sure to check out weather.gov/heatsafety.

Looking ahead toward the end of the week, a cold front is progged to move across the region bringing cooler and drier conditions. With highs topping out on Saturday in the 70s and lows dipping back into the 50s Saturday night into Sunday.

AVIATION

(18Z TAFS) Issued at 1237 PM CDT Mon Apr 27 2026

MVFR CIGs are lingering this afternoon but should generally expect VFR conditions by later this afternoon, may have to make amend TAFs if MVFR conditions persist. Overnight, expecting similar conditions to the previous overnight period with IFR possibly LIFR CIGs across eastern terminals with cloud deck lifting during the early morning. Not expecting much in the way of fog as winds look to remain elevated most of the period to limit fog formation.

MARINE

Issued at 233 PM CDT Mon Apr 27 2026

A gentle to moderate onshore flow (BF 3-4) is expected through much of the work week ahead of our next cold front. Then winds shift northeast this upcoming weekend and increase to strong to near Gale (BF 6-7). Accompanied by moderate rain and thunderstorm chances.

FIRE WEATHER

Issued at 233 PM CDT Mon Apr 27 2026

Generally, fire weather concerns are not expected despite the hot temperatures during the first part of the week. A cold front towards the end of the week will result in windy conditions shifting out of the northeast but temperatures should cool down enough to mitigate elevated fire weather. Will keep an eye on trends and update as necessary if anything changes.

PRELIMINARY POINT TEMPS/POPS

Corpus Christi 76 90 75 89 / 0 10 0 0 Victoria 74 92 73 91 / 0 0 0 10 Laredo 76 100 76 99 / 0 0 0 10 Alice 75 97 73 96 / 0 0 0 0 Rockport 76 86 76 86 / 0 0 0 0 Cotulla 76 101 76 98 / 10 0 0 10 Kingsville 75 94 73 94 / 0 0 0 0 Navy Corpus 76 84 76 84 / 0 0 0 0

CRP WATCHES/WARNINGS/ADVISORIES

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