textproduct: Corpus Christi

KEY MESSAGES

Issued at 639 PM CDT Wed Aug 12 2026

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

- Borderline elevated fire weather conditions over the Rio Grande Plains daily.

- Little to no rain chance through Thursday; limited 20% on Friday

DISCUSSION

Issued at 144 PM CDT Wed Aug 12 2026

Mid-level ridging will dominate the period leading to warm and mostly rain free conditions outside of isolated seabreeze convection each day. As we approach Thursday night into Friday morning, we will see a mid-level shortwave tracking along the southern periphery of the ridge. This will lead to an increase in the moisture regime, surging PWATs around 2.0 inches (75th percentile of climatology). This shortwave will bring PVA to the area, and resulting small scale lift will allow for low rain chances (~20%) during the morning and afternoon on Friday.

Will continue to monitor the need for short-fused heat related products. We could see peak heat indices of 110 to 115 with dew points in the mid to upper 70s into next week. This translates to moderate to extreme HeatRisk conditions. An additional risk for elevated fire weather exists over the Rio Grande Plains into the weekend due to low RH (~25%) and sustained 20mph winds gusting to 25mph. 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.

AVIATION

(00Z TAFS) Issued at 639 PM CDT Wed Aug 12 2026

VFR conditions will persist into the overnight hours. Expect MVFR CIGs and VSBYs to develop in the Coastal Plains affecting the eastern terminals (ALI,CRP,VCT) around daybreak. This will be brief and VFR conditions will return by midmorning. Winds will be southerly around 15-20 knots with gusts up to 30 knots through the TAF cycle.

MARINE

Issued at 144 PM CDT Wed Aug 12 2026

Moderate to occasionally fresh southeasterly flow will persist through this week for most of the waters. Bays and waters along the coast south of Port Aransas will have a fresh breeze during the afternoon and evening hours through Friday. A Small Craft Advisory may be needed over this period. Rain chances (~20%) will be on the rise over the nearshore and offshore waters Thursday evening into Friday afternoon.

PRELIMINARY POINT TEMPS/POPS

Corpus Christi 79 94 80 94 / 0 0 10 20 Victoria 77 97 77 96 / 0 0 10 20 Laredo 78 106 79 103 / 0 0 0 20 Alice 76 100 77 99 / 0 0 0 20 Rockport 82 92 82 92 / 0 0 10 20 Cotulla 77 106 77 103 / 0 0 0 20 Kingsville 78 98 79 97 / 0 0 10 20 Navy Corpus 82 90 82 91 / 0 0 10 30

CRP WATCHES/WARNINGS/ADVISORIES

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