textproduct: Corpus Christi

KEY MESSAGES

Issued at 646 PM CDT Thu Aug 13 2026

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

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

- Little to no rain chances through Thursday, low chance (20-30%) Friday.

DISCUSSION

Issued at 148 PM CDT Thu Aug 13 2026

Mid-level ridging will continue to dominate the period leading to warm and mostly rain free conditions outside of sparse seabreeze convection each day. Early Friday morning, we will see a mid-level shortwave tracking along the southern periphery of the ridge beginning to head onshore. This will lead to an increase in the moisture regime, surging PWATs around 2.0 inches along the mid-upper coastline of the CWA, with 2.1" PWAT values up towards the Victoria Crossroads. This shortwave will bring PVA to the area resulting in small scale lift which will allow for low rain chances (20-30%) 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 early next week. This translates to moderate to extreme HeatRisk conditions. An additional risk for elevated fire weather exists over the Rio Grande Plains into early next week due to low RH (25-30%) 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 646 PM CDT Thu Aug 13 2026

Winds will begin to diminish around 04z in our eastern terminals, whereas to the west winds will remain breezy with gusts up to 25 kts. Occasional MVFR CIGs and visibilities are in play for the Coastal Plains between 09-15Z. Expect a return to VFR conditions at all terminals after 15z as winds return gusting up to 25-30 kts through 00Z Friday.

MARINE

Issued at 148 PM CDT Thu Aug 13 2026

Moderate to occasionally fresh southeasterly flow will persist through Friday for most of the waters, becoming gentle to moderate over the weekend. 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 is currently in effect for the aforementioned area until 1 AM Friday. Low rain chances (20-30%) early Friday morning into the afternoon.

PRELIMINARY POINT TEMPS/POPS

Corpus Christi 80 94 80 94 / 10 20 0 0 Victoria 77 96 78 97 / 10 20 0 0 Laredo 79 104 79 104 / 0 20 0 0 Alice 77 99 77 99 / 0 20 0 0 Rockport 82 92 82 91 / 10 20 0 0 Cotulla 77 104 78 104 / 0 20 10 0 Kingsville 78 97 78 96 / 10 20 0 0 Navy Corpus 82 90 83 90 / 10 20 0 0

CRP WATCHES/WARNINGS/ADVISORIES

TX...None. GM...Small Craft Advisory until 1 AM CDT Friday for GMZ231-232-250.