textproduct: Corpus Christi

KEY MESSAGES

Updated at 554 AM CDT Thu Jul 9 2026

- Moderate risk of heat-related impacts this week, with peak heat indices between 103-108 degrees.

- Medium rain chances Friday into the weekend, with isolated pockets of heavy rainfall and high rainfall accumulations

DISCUSSION

Issued at 109 AM CDT Thu Jul 9 2026

A mid-lvl easterly disturbance will progress northwestward toward the area today, passing through the area tonight into Friday. We will remain on the dry side of the wave axis today with only isolated showers and storms expected. Rain chances will there increase late tonight into Friday as the disturbance moves over the area and with it a plume of tropical moisture characterized by PWATs in the 2-2.3 inch range. There is a good signal that storms would focus over the Gulf waters and coastal areas early Friday morning with this focus then gradually progressing inland by the afternoon as the disturbance lifts northwest and the sea breeze develops. Given the aforementioned tropical moisture, increasing synoptic lift, and a deep warm cloud layer suspect isolated higher totals in the 2-3 inch range will be observed (and this is supported by the 00Z CAM suite). That being said 1 hour FFG is > 3 inches essentially area-wide so significant hydro concerns are not anticipated at this time.

Although the mid-lvl disturbance will lift north and weaken on Saturday the anomalous moisture plume will remain overhead so another day of scattered storms and locally heavy rainfall can be expected. By Sunday into early next week a very anomalous ridge (nearly 600 dam!) will set up over the Northern Plains/Upper Midwest with a number of easterly convectively-enhanced disturbances pivoting westward towards Texas along its southern periphery. These disturbances will likely track along an 850-700mb boundary/convergence zone, creating a zone of active weather Monday through the middle of next week somewhere along the western Gulf. Guidance is not in good agreement on whether this boundary sets up north of the area or over portions of the area so will leave scattered PoPs for now, but it is something to watch as somewhere in the TX/Western LA range will likely see heavy rainfall and training of storms.

Temperatures will remain near normal through the period, with some increase in heat indices heading into the weekend as dewpoints creep up with the moisture surge.

AVIATION

(12Z TAFS) Issued at 554 AM CDT Thu Jul 9 2026

VFR conditions will prevail through the TAF cycle. Brief MVFR ceilings and visibility are possible for ALI, CRP, and VCT through 13Z this morning; however, confidence is too low at VCT and CRP to include a TEMPO. Southeast winds will increase again by midday.

MARINE

Issued at 109 AM CDT Thu Jul 9 2026

Mainly moderate south-southeasterly winds (BF 3-4) will persist through at least Saturday. Some isolated storms can be expected today with scattered storms expected tonight through Saturday.

PRELIMINARY POINT TEMPS/POPS

Corpus Christi 92 78 91 80 / 10 30 40 20 Victoria 96 77 94 78 / 10 20 40 20 Laredo 97 77 97 78 / 10 10 30 20 Alice 95 75 93 77 / 10 20 40 10 Rockport 91 82 91 83 / 10 30 40 20 Cotulla 98 76 95 77 / 10 10 40 20 Kingsville 92 76 91 78 / 10 20 30 10 Navy Corpus 90 81 90 83 / 20 30 40 20

CRP WATCHES/WARNINGS/ADVISORIES

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