textproduct: Corpus Christi

KEY MESSAGES

Issued at 551 AM CDT Tue Aug 11 2026

- Moderate to major risk of heat-related impacts next week, with peak heat indices 110 to 115, especially Wednesday and Thursday.

- Little to no rain chance through Thursday, limited 20% Friday and Saturday.

DISCUSSION

Issued at 123 AM CDT Tue Aug 11 2026

Decreasing moisture and building high pressure will keep rain chances to a minimal at least through Thursday. Some weaknesses will travel around the south side of the ridge, but these will remain mainly south of the area, and with PWAT values not much above normal values, think the best we can see is an isolated sea breeze shower, but meso models not even suggesting that for the next few days. By Friday the ridge does shift a bit northward allowing disturbances to get a little closer. Moisture will increase a bit Friday, but not substantially and will maintain only 20% PoPs.

Seasonal temperatures are expected with a very slight uptick toward the second half of the week. Highs will be above 100 daily over the Rio Grande Plains and in the 90s east. Heat index values on Tuesday may briefly top 110 for a few locations, but this should be limited. Wednesday and Thursday have a better chance to have heat advisory level conditions.

AVIATION

(12Z TAFS) Issued at 551 AM CDT Tue Aug 11 2026

Patchy fog will lead to isolated areas of MVFR conditions, but otherwise, VFR conditions prevail through the TAF period. SE'ly winds are forecast to increase to 15-20 kts after 16Z with winds decreasing at or below 10 kts after 03Z.

MARINE

Issued at 123 AM CDT Tue Aug 11 2026

Moderate southeasterly flow persists through the week for most of the area. South of Port Aransas in bays and along the coast a fresh breeze will be possible Wednesday and Thursday, and a localized small craft advisory may be needed. Rain chances will be low through the period.

FIRE WEATHER

Issued at 123 AM CDT Tue Aug 11 2026

Min RHs will be in the 25-30% range each afternoon through the end of the week 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.

PRELIMINARY POINT TEMPS/POPS

Corpus Christi 95 79 96 79 / 10 0 0 0 Victoria 95 77 96 77 / 10 10 10 0 Laredo 104 78 106 78 / 0 0 0 0 Alice 100 75 101 75 / 10 0 0 0 Rockport 92 82 90 82 / 10 10 10 0 Cotulla 104 77 106 77 / 0 0 0 0 Kingsville 97 77 99 77 / 10 0 0 0 Navy Corpus 90 82 90 82 / 10 0 0 0

CRP WATCHES/WARNINGS/ADVISORIES

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