textproduct: Corpus Christi

KEY MESSAGES

Issued at 529 AM CDT Wed Aug 26 2026

- Heat Advisory today across the Coastal Plains/Victoria Crossroads

- Elevated fire risk leading a Fire Danger Statement across the Brush Country

- 20-30% rain chances Thursday across northern Brush Country, with lower confidence on Friday across the Victoria Crossroads

- In the absence of rain, the HeatRisk will be the dominant concern

DISCUSSION

Issued at 129 AM CDT Wed Aug 26 2026

The dominant mid/upper-level high pressure continues to bring 100 degree high temperatures to much of South Texas (with 90s along the coastal zones). Coupled with dewpoint temperatures still remaining in the 70s in the afternoons east of a line from Cross to Benavides, the HeatRisk is forecast to climb back to mostly Major (level 3 of 4) with heat indices climbing to as high as 114F. For this reason, a Heat Advisory has been issued these zones from noon to 7 PM today. This heat dome slides ever so slightly westward Thursday and Friday, resulting in upper-level winds to come out of the northwest/north allowing some disturbances to push into south-central Texas. While the majority of CAMs have some form of composite reflectivity moving through the northern Brush Country Thursday evening, any shower that moves in from the I-10 corridor will be elevated in nature leading to virga as any storms moves toward the Hwy 59 corridor. That said, storms forming from the collision of the sea-breeze may be more efficient at dropping a few more raindrops (more so for the Victoria Crossroads as their PWATs are forecast to be between 2.0-2.2").

Friday's rain chances (20-30% in the Victoria Crossroads and less so further south along the Coastal Bend) are a bit lower in confidence among the global models. In the absence any rain on Thursday and Friday, higher dewpoints would increase the HeatRisk and would warrant further consideration of any heat-related headlines. Moving further into the forecast period, low end rain chances (<20%) associated with the seabreeze return as the heat dome slides east and weakens as it does so. Summer in Texas is still in full force.

AVIATION

(12Z TAFS) Issued at 550 AM CDT Wed Aug 26 2026

Brief MVFR conditions across VCT and ALI this morning are expected to lift to VFR around 14Z. These conditions are expected to develop once again overnight, mainly after 08Z Thursday. Otherwise, VFR conditions will persist across S TX through the TAF cycle. S-SE sustained winds will generally be around 15 knots or less with occasional gusts to 20-25 knots this afternoon.

MARINE

Issued at 129 AM CDT Wed Aug 26 2026

A light to moderate (BF 2-4) onshore breeze will continue through the week, with occasional fresh (BF 5) breezes possible during the late afternoon/evening hours, especially south of Port Aransas. Low- end rain chances return north of Port Aransas Thursday/Friday, but will be isolated.

FIRE WEATHER

Issued at 129 AM CDT Wed Aug 26 2026

ERC values continue to hover near the 90th across much of South Texas (with the exception of the coastal plains). Humidity values will continue to be low, with minimum RH values below 34% over the Coastal Plains and as low as 20-25% across the Brush Country. While winds will remain light in the morning, afternoon winds combined with low humidity will increase the fire risk to elevated conditions, leading to a Fire Danger Statement for the Brush Country this afternoon. Low-end chances for precipitation (20-30%) return to the northern Brush Country and Victoria Crossroads Thursday night, though chances for a wetting rain remain low.

PRELIMINARY POINT TEMPS/POPS

Corpus Christi 97 78 98 78 / 0 0 0 0 Victoria 104 77 105 77 / 0 0 10 20 Laredo 106 79 106 80 / 0 0 0 0 Alice 103 75 104 75 / 0 0 0 0 Rockport 93 81 93 81 / 0 0 0 10 Cotulla 105 77 105 78 / 0 0 0 20 Kingsville 101 76 102 76 / 0 0 0 0 Navy Corpus 91 81 91 81 / 0 0 0 0

CRP WATCHES/WARNINGS/ADVISORIES

TX...Heat Advisory from noon today to 7 PM CDT this evening for TXZ230>234-240>247-342>344-346-347.

GM...None.