textproduct: Corpus Christi

KEY MESSAGES

Updated at 649 PM CDT Fri Apr 24 2026

- Moderate to Major Heat Risk beginning this weekend for the inland Coastal Plains to the Brush Country through next week

- Marginal threat (1 out of 5) for severe storms west on Saturday.

- Coastal flooding conditions possible through the weekend

DISCUSSION

Issued at 145 PM CDT Fri Apr 24 2026

Overall pattern during this forecast period features a mid-level flow across the region with an elongated high pressure centered just offshore of the western Mexican coast resulting in ridging across the region. Meanwhile PVA from an eastern Pacific mid-level low just off the CALI coast will spin out several shortwaves that will ride the periphery of the high. Not surprisingly, the GFS is more bullish than other operational models and the NBM output seems reasonable so no reason to deviate from that.

Limited instability along with a shallow layer of moisture above the surface is resulting in some sprinkles along the Coastal Bend and offshore this afternoon. Expecting this to generally continue through the early evening hours as indicated by Hi-Res models which also indicate another round of light sprinkles/virga again tomorrow morning.

SPC has portions of the northwestern Brush Country in a Marginal (1 out of 5) threat for severe storms for Saturday afternoon. PVA from a shortwave Saturday will interact with a dryline moving eastward from West Texas and available moisture to fire off storms generally west and north of our region, with some becoming severe. Any strong to severe storms that form as a result could potentially move into our CWA with large to very large hail as the main threat.... Will continue to monitor this over the next few cycles.

Decreased cloud cover plus WAA and the influence of subsidence from ridging next week will allow for temperatures to soar into the 90s and 100s across much of South Texas this upcoming week. The unusually hot temperatures will result in a moderate to major heat risk that will increase through about mid-week. Currently, there's a high (80-90%) chance for major heat risk to impact much of South Texas next week with Mon through Wednesday looking to be the hottest days. Heat indices starting this weekend will generally range from 100-105 with indices approaching 110 degrees Monday and Tuesday. Make sure to practice heat safety. 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.

Looking ahead toward the end of the upcoming workweek, a cold front looks to move across the region bring "cooler" temperatures and very low chances for precipitation followed by drier conditions behind the boundary.

A Moderate rip current risk and a Coastal Flood Advisory are in effect today driven by a persistent moderate onshore flow and longer- period swells up to around 8-9 seconds that have been observed at Buoy 20. PETSS guidance has increasing levels heading into the weekend with astronomical tides as we approach a new moon on April 17th. Conditions will continue to be monitored and additional Minor Coastal Flood Advisories may be issued as needed.

AVIATION

(00Z TAFS) Issued at 649 PM CDT Fri Apr 24 2026

Conditions will begin to deteriorate over the next couple of hours beginning over the next few hours to MVFR to LIFR conditions across all sites. Very low ceilings and patchy fog to dense fog will develop overnight across mostly the eastern TAF sites though fog could spread to COT. This is expected to persist through mid to late tomorrow morning. Conditions will return to VFR there after.

MARINE

Issued at 145 PM CDT Fri Apr 24 2026

A gentle to moderate onshore flow (BF 3-4) is expected to become a Fresh breeze (BF 5) Wednesday ahead of an approaching cold front late next workweek. Very low rain chances throughout the forecast period.

FIRE WEATHER

Issued at 145 PM CDT Fri Apr 24 2026

Fire weather concerns remain generally low due to RH levels generally in the 40-50% over inland locations except for mid-week when RH values drop to around 30% mid-week as temperatures soar into the triple digits. 20 ft winds generally less than 10 mph and above normal fuel moisture expected to limit fire weather concerns. As temperatures rise over the coming days, heat indices starting this weekend will generally range from 100-105 degrees with indices approaching 110 degrees Monday and Tuesday. Make sure to practice heat safety. 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.

PRELIMINARY POINT TEMPS/POPS

Corpus Christi 73 88 73 88 / 10 0 0 0 Victoria 71 90 71 90 / 10 0 0 0 Laredo 74 99 73 99 / 10 0 0 0 Alice 72 93 72 93 / 10 0 0 0 Rockport 73 84 74 85 / 10 0 0 0 Cotulla 72 97 72 97 / 10 10 10 0 Kingsville 72 91 73 91 / 10 0 0 0 Navy Corpus 74 83 75 83 / 10 0 0 0

CRP WATCHES/WARNINGS/ADVISORIES

TX...Coastal Flood Advisory until 10 PM CDT this evening for TXZ345- 442-443-447.

GM...None.