textproduct: Corpus Christi

KEY MESSAGES

Issued at 622 AM CDT Thu Aug 20 2026

- Major heat-related impact continue, with hot temperatures expected through the weekend

- Monitoring daily elevated fire weather potential over the Brush Country through the weekend and into next week

DISCUSSION

Issued at 137 AM CDT Thu Aug 20 2026

High pressure will persist, with only slight shifts on the location of the center. This will keep us hot and dry through the period. Our only hope of rain will be seabreeze convection in the afternoons, but chances of this are very low (<10%).

High temperatures will range from 90 along the coast to around 105 over the Brush Country. Heat index values will slowly increase to 110-114 by Friday, with isolated locations (mainly in the inland Coastal Bend) reaching 115. For now, have not issued a Heat Advisory for today, but we will need to watch and potentially issue a short- fused Advisory. By Friday, expect Heat Advisories may be necessary daily through the weekend. 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

(12Z TAFS) Issued at 622 AM CDT Thu Aug 20 2026

VFR conditions expected to persist through the TAF cycle. There is a low probability of brief MVFR VSBYs at VCT and very low at ALI early Friday morning after 08Z. S-SE winds around 15 knots gusting to around 20 knots expected this afternoon then relaxing tonight.

MARINE

Issued at 137 AM CDT Thu Aug 20 2026

Light to moderate (BF 2-4) onshore breezes will continue through the period, with occasional fresh (BF 5) breezes possible during the late afternoon/evening hours. Seas are expected to remain around 2-3 feet. Rain chances will remain near zero.

FIRE WEATHER

Issued at 137 AM CDT Thu Aug 20 2026

The potential for elevated fire weather conditions over the Brush Country and portions of the western Coastal Plains are expected to continue into next week, with relative humidity values dropping into mid 20s each afternoon. With ERC values in the 75-89th percentile, low humidity, dry to critically dry fuels, and hot temperatures, a few locations across the Brush Country could see critical fire weather conditions today into next week.

PRELIMINARY POINT TEMPS/POPS

Corpus Christi 98 78 98 77 / 0 0 0 0 Victoria 100 76 100 74 / 0 0 0 0 Laredo 105 79 105 79 / 0 0 0 0 Alice 103 75 103 74 / 0 0 0 0 Rockport 92 81 92 80 / 0 0 0 0 Cotulla 104 78 104 77 / 0 0 0 0 Kingsville 101 76 101 75 / 0 0 0 0 Navy Corpus 92 81 92 80 / 0 0 0 0

CRP WATCHES/WARNINGS/ADVISORIES

TX...Heat Advisory from noon today to 7 PM CDT this evening for TXZ230>234-241>247-342>344-346-347.

GM...None.