textproduct: Corpus Christi

UPDATE

Issued at 654 PM CDT Tue Apr 21 2026

The coastal flood advisory has been allowed to expire this evening. Will review the possibility for this to return to the forecast tomorrow with the next package.

KEY MESSAGES

Updated at 654 PM CDT Tue Apr 21 2026

- Minor coastal flooding and moderate to high risk of rip currents possible through the week.

- Shower and thunderstorm chances are low to medium tonight into Wednesday, ending by Wednesday night.

DISCUSSION

Issued at 156 PM CDT Tue Apr 21 2026

Scattered showers and isolated thunderstorms will continue to move northward across S TX through the afternoon. Rain chances are forecast to decrease to around 10-20% tonight as an upper level short wave exits to the east. Rain chances increase to 10-40% Wednesday with the 40% generally north and east of I37 in response to another weak upper level disturbance. A mid/upper level ridge builds across the region beginning Wednesday night ending rain chances through the remainder of the week.

With ridging aloft and less cloud cover, temperatures will increase back into the 80s by Wednesday with highs approaching 100 across the western areas by the weekend.

Although tide levels are expected to gradually decrease through the week, minor coastal flooding will remain possible during times of high tide through the week. The PETSS indicates tide levels to remain above 1.5ft MSL at Aransas Pass during high tide through Friday. Swell periods are forecast to range between 7-8 seconds, which will aid in pushing the water up to the dunes. The swells may also lead to a moderate to high rip current risk at times.

AVIATION

(00Z TAFS) Issued at 618 PM CDT Tue Apr 21 2026

Have a mix of VFR to LIFR currently due to low ceilings hanging on across the region. Overnight expect some fog to result in MVFR VSBYs and a low clouds with IFR to possibly LIFR CIGs. Lower CIGs hang on throughout the morning and part of the afternoon tomorrow but VFR should return by the end of this TAF period.

FIRE WEATHER

Issued at 156 PM CDT Tue Apr 21 2026

The chance for wetting rains continues through Wednesday, then ends by Wednesday night. Minimum RH values will remain generally above 30- 40% through the period. Temperatures will climb back into the 80s by Wednesday, increasing to well above normal by the latter half of the week. Overall, fire weather concerns are not anticipated at this time.

FIRE WEATHER

Issued at 156 PM CDT Tue Apr 21 2026

The chance for wetting rains continues through Wednesday, then ends by Wednesday night. Minimum RH values will remain generally above 30- 40% through the period. Temperatures will climb back into the 80s by Wednesday, increasing to well above normal by the latter half of the week. Overall, fire weather concerns are not anticipated at this time.

PRELIMINARY POINT TEMPS/POPS

Corpus Christi 70 83 70 84 / 10 30 0 0 Victoria 65 83 67 85 / 30 40 10 0 Laredo 71 88 70 93 / 10 0 0 0 Alice 68 85 68 88 / 10 30 0 0 Rockport 71 82 72 83 / 20 40 10 0 Cotulla 69 87 68 90 / 20 10 0 0 Kingsville 69 83 69 85 / 10 20 0 0 Navy Corpus 73 80 73 80 / 10 30 0 0

CRP WATCHES/WARNINGS/ADVISORIES

TX...Coastal Flood Advisory until 7 PM CDT this evening for TXZ345- 442-443-447.

GM...None.