Marine Weather and Tide Forecast for Corpus Christi, TX

DISCUSSION
Issued at 128 AM CDT Tue Apr 21 2026

We're starting to turn the corner toward the end of this rain event, but the forecast for tonight into tomorrow is just as muddy as it has been. A low and mid-level shortwave moving through the area tonight should bring showers and storms to the region...but current model trends suggest otherwise! Have lowered PoPs a bit for the overnight hours, but will keep generally 30-40% across the area. By tomorrow afternoon most of the lingering convection will be moving off to the northeast with the best chances for rain in the afternoon around the Victoria Crossroads. We've seen an area wide rainfall average around 1 inch for the past few days and we'll couple see a few more tense everywhere, with more than a half an inch still possible in the Victoria Crossroads. That said, confidence isn't great in the overall picture for the next 24 hours as it seems to be running out of it's own playbook today.

Temperatures will be on the increase (and in fact, already are.
Temperatures have been on a very slow climb late tonight in the east, and could continue to go up a couple of degrees through the rest of tonight. Expect highs in the 80s west Tuesday where the layer begins drying out more quickly. 70s are expected east.
Continued warming will stay with us through the end of the week when well above normal temperatures return.

We continue to see minor coastal flooding along Gulf facing beaches, especially around high tide times. This will likely persist through the middle of the week.

AVIATION
(12Z TAFS)
Issued at 612 AM CDT Tue Apr 21 2026

Poor aviation conditions will continue through this period.
Currently, CIGs are a mixed bag of LIFR/IFR/MVFR which should lift slightly over the next few hours to become primarily MVFR.
Western terminals (COT/LRD) may even see brief VFR conditions late this afternoon. Visibilities are also reduced this morning due to a combination of light rain/mist and fog. Showers will continue off and on through the morning eventually ending from west to east by afternoon. A few showers may linger along the coast until evening. Conditions deteriorate once again overnight tonight as CIGs are forecast to drop to predominately MVFR/IFR. Southeasterly winds will generally range between 10-15 knots through this TAF cycle.

MARINE
Issued at 128 AM CDT Tue Apr 21 2026

A mainly gentle to moderate onshore flow will persist through the week as high pressure builds over the area. Rain chances continue through Wednesday before drier conditions return later in the week.

FIRE WEATHER
Issued at 128 AM CDT Tue Apr 21 2026

Scattered showers and an isolated thunderstorm remain in the forecast tomorrow, and for the east Wednesday as well. RH values will remain elevated through the period and winds remain below critical fire concern levels.

PRELIMINARY POINT TEMPS/POPS
Corpus Christi 79 70 82 70 / 40 10 40 0 Victoria 76 65 82 67 / 60 30 60 10 Laredo 83 70 89 69 / 10 10 10 0 Alice 80 68 85 68 / 50 10 40 0 Rockport 79 70 82 72 / 40 20 50 10 Cotulla 81 68 86 67 / 20 10 10 0 Kingsville 79 68 84 68 / 40 10 30 0 Navy Corpus 78 73 80 73 / 40 20 40 10

CRP WATCHES/WARNINGS/ADVISORIES
TX...Coastal Flood Advisory until 7 PM CDT this evening for TXZ345- 442-443-447.

GM...None.