Coastal Waters Forecast for Texas National Weather Service Corpus Christi TX
447 AM CDT Mon Oct 27 2025
Middle Texas coastal waters from Baffin Bay to Matagorda ship channel out to 60 nautical miles.
Seas are provided as a range of the average height of the highest 1/3 of the waves
...along with occasional height of the average highest 10 percent of the waves.
GMZ200-272215-
447 AM CDT Mon Oct 27 2025
.SYNOPSIS FOR THE MIDDLE TEXAS COASTAL WATERS...
Light to moderate (BF 2-4) onshore flow will persist through much of the day today before strengthening on Tuesday to moderate to fresh (BF 4-5) ahead of a frontal boundary.
Behind the front, winds are expected to shift to the north-northwest and increase to a fresh to a strong breeze (BF 5-6) Tuesday night through Wednesday night, potentially approaching near-gale force.
A Small Craft Advisory will likely be needed during this period, and Gale headlines may become necessary depending on the evolution of conditions.
By Thursday, winds begin to diminish to a more moderate to fresh (BF 4-5) breeze and eventually to a gentle (BF 3) breeze by the weekend.
$$
GMZ236-237-272215- Copano, Aransas, and Redfish Bays- San Antonio, Mesquite, and Espiritu Santo Bays-
447 AM CDT Mon Oct 27 2025
.TODAY...South winds 5 to 10 knots. Bay and inland waters smooth.
.TONIGHT...South winds 10 to 15 knots with gusts up to 20 knots. Bay and inland waters slightly choppy to occasionally choppy.
.TUESDAY...South winds 10 to 15 knots. Bay and inland waters slightly choppy to occasionally choppy.
.TUESDAY NIGHT...Northeast winds 20 to 25 knots, becoming north 25 to 30 knots after midnight. Bay and inland waters rough to occasionally very rough.
A chance of showers with a slight chance of thunderstorms in the evening.
.WEDNESDAY...North winds 20 to 25 knots with gusts up to 35 knots. Bay and inland waters choppy to rough.
.WEDNESDAY NIGHT...Northwest winds 15 to 20 knots, diminishing to 10 to 15 knots after midnight. Bay and inland waters choppy to occasionally rough.
.THURSDAY...North winds 10 to 15 knots, diminishing to 5 to 10 knots in the afternoon. Bay and inland waters slightly choppy to occasionally choppy.
.THURSDAY NIGHT...North winds 5 to 10 knots. Bay and inland waters smooth to slightly choppy.
.FRIDAY...Northeast winds 5 to 10 knots, becoming east in the afternoon. Bay and inland waters smooth.
.FRIDAY NIGHT...Southeast winds 5 to 10 knots. Bay and inland waters smooth.
Winds and waves higher in and near thunderstorms.
$$
GMZ231-232-272215- Baffin Bay and Upper Laguna Madre-Corpus Christi and Nueces Bays-
447 AM CDT Mon Oct 27 2025
.TODAY...South winds 5 to 10 knots, becoming southeast 10 to 15 knots late. Bay and inland waters slightly choppy to occasionally choppy. Patchy fog early this morning.
.TONIGHT...Southeast winds 10 to 15 knots, becoming south 15 to 20 knots after midnight. Bay and inland waters choppy.
.TUESDAY...South winds 10 to 15 knots. Bay and inland waters slightly choppy to occasionally choppy.
.TUESDAY NIGHT...East winds 25 to 30 knots, becoming north after midnight. Bay and inland waters rough to occasionally very rough. A chance of showers with a slight chance of thunderstorms in the evening.
.WEDNESDAY...North winds 25 to 30 knots, becoming northwest 20 to 25 knots in the afternoon. Bay and inland waters rough to occasionally very rough.
.WEDNESDAY NIGHT...Northwest winds 15 to 20 knots with gusts up to 25 knots. Bay and inland waters choppy to occasionally rough.
.THURSDAY...North winds 10 to 15 knots. Bay and inland waters slightly choppy to occasionally choppy.
.THURSDAY NIGHT...Northeast winds 5 to 10 knots. Bay and inland waters smooth to slightly choppy.
.FRIDAY...Northeast winds 5 to 10 knots, becoming east in the afternoon. Bay and inland waters smooth.
.FRIDAY NIGHT...Southeast winds 5 to 10 knots, becoming south after midnight. Bay and inland waters smooth.
Winds and waves higher in and near thunderstorms.
$$
GMZ255-272215- Coastal waters from Port Aransas to Matagorda Ship Channel out 20 NM-
447 AM CDT Mon Oct 27 2025
.TODAY...South winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail: East 2 feet at 8 seconds and south 1 foot at 5 seconds.
.TONIGHT...Southeast winds 10 to 15 knots, becoming south 15 to 20 knots after midnight. Seas 2 to 4 feet, occasionally to 5 feet. Wave Detail: South 3 feet at 5 seconds and east 2 feet at 8 seconds.
.TUESDAY...South winds 10 to 15 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: South 3 feet at 5 seconds and east 2 feet at 8 seconds.
.TUESDAY NIGHT...North winds 25 to 30 knots, increasing to 30 to 35 knots after midnight. Seas 2 to 4 feet, occasionally to 5 feet, building to 5 to 7 feet, occasionally to 9 feet after midnight.
Wave Detail: Southeast 2 feet at 6 seconds, becoming northeast 7 feet at 6 seconds and south 1 foot at 5 seconds. A chance of showers and thunderstorms in the evening.
.WEDNESDAY...North winds 25 to 30 knots with gusts up to 40 knots. Seas 5 to 7 feet, occasionally to 9 feet. Wave Detail: North 7 feet at 6 seconds.
.WEDNESDAY NIGHT...Northwest winds 20 to 25 knots with gusts up to 30 knots. Seas 4 to 6 feet, occasionally to 8 feet. Wave Detail: North 4 feet at 5 seconds.
.THURSDAY...North winds 20 to 25 knots, diminishing to 10 to 15 knots in the afternoon. Seas 2 to 4 feet, occasionally to 5 feet.
.THURSDAY NIGHT...North winds 5 to 10 knots. Seas 2 to 3 feet.
.FRIDAY...Northeast winds around 10 knots, becoming east in the afternoon. Seas 2 to 3 feet.
.FRIDAY NIGHT...Southeast winds 5 to 10 knots. Seas around 2 feet or less, then around 2 feet after midnight.
Winds and seas higher in and near thunderstorms.
$$
GMZ250-272215- Coastal waters from Baffin Bay to Port Aransas out 20 NM-
447 AM CDT Mon Oct 27 2025
.TODAY...South winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail: East 3 feet at 8 seconds and south 1 foot at 5 seconds.
.TONIGHT...Southeast winds 10 to 15 knots, becoming south 15 to 20 knots after midnight. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: Southeast 3 feet at 4 seconds and east 3 feet at 8 seconds.
.TUESDAY...South winds 15 to 20 knots, diminishing to around 10 knots in the afternoon. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: South 3 feet at 5 seconds and east 2 feet at 8 seconds.
.TUESDAY NIGHT...East winds 25 to 30 knots, becoming north 30 to 35 knots after midnight. Seas around 3 feet, building to 5 to 8 feet, occasionally to 10 feet after midnight.
Wave Detail: East 3 feet at 6 seconds, becoming northeast 8 feet at 7 seconds and south 1 foot at 4 seconds.
Showers likely with a chance of thunderstorms in the evening, then a slight chance of showers and thunderstorms after midnight.
.WEDNESDAY...North winds 25 to 30 knots. Seas 6 to 9 feet, occasionally to 11 feet. Wave Detail: North 9 feet at 7 seconds.
.WEDNESDAY NIGHT...Northwest winds 20 to 25 knots with gusts up to 30 knots. Seas 5 to 7 feet, occasionally to 9 feet. Wave Detail: North 6 feet at 6 seconds.
.THURSDAY...North winds 20 to 25 knots, diminishing to 10 to 15 knots in the afternoon. Seas 3 to 5 feet, occasionally to 6 feet.
.THURSDAY NIGHT...North winds 5 to 10 knots. Seas around 2 feet.
.FRIDAY...Northeast winds 5 to 10 knots, becoming east in the afternoon. Seas around 2 feet.
.FRIDAY NIGHT...Southeast winds around 10 knots, becoming south after midnight. Seas around 2 feet.
Winds and seas higher in and near thunderstorms.
$$
GMZ270-275-272215- Waters from Baffin Bay to Port Aransas from 20 to 60 NM- Waters from Port Aransas to Matagorda Ship Channel from 20 to 60 NM-
447 AM CDT Mon Oct 27 2025
.TODAY...Southeast winds 5 to 10 knots. Seas around 3 feet. Wave Detail: East 3 feet at 8 seconds and south 1 foot at 5 seconds.
.TONIGHT...Southeast winds 10 to 15 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: South 3 feet at 4 seconds and east 3 feet at 8 seconds.
.TUESDAY...South winds 10 to 15 knots with gusts up to 20 knots, diminishing to 5 to 10 knots in the afternoon. Seas 3 to 4 feet, occasionally to 5 feet.
Wave Detail: South 3 feet at 5 seconds and east 2 feet at 8 seconds.
.TUESDAY NIGHT...Southwest winds 20 to 25 knots, becoming north 25 to 30 knots after midnight. Seas 2 to 3 feet, building to 5 to 8 feet, occasionally to 10 feet after midnight.
Wave Detail: South 2 feet at 4 seconds and east 2 feet at 7 seconds, becoming north 8 feet at 4 seconds and east 8 feet at 8 seconds.
Showers likely with a chance of thunderstorms in the evening, then a chance of showers with a slight chance of thunderstorms after midnight.
.WEDNESDAY...North winds 25 to 30 knots with gusts up to 40 knots. Seas 9 to 11 feet, occasionally to 14 feet. Wave Detail: North 11 feet at 7 seconds and northeast 11 feet at 8 seconds.
.WEDNESDAY NIGHT...Northwest winds around 25 knots with gusts up to 30 knots. Seas 7 to 10 feet, occasionally to 13 feet. Wave Detail: North 8 feet at 7 seconds.
.THURSDAY...North winds 20 to 25 knots, diminishing to 15 to 20 knots in the afternoon. Seas 5 to 7 feet, occasionally to 9 feet, subsiding to 3 to 5 feet, occasionally to 6 feet in the afternoon.
.THURSDAY NIGHT...North winds 5 to 10 knots. Seas 3 to 4 feet, occasionally to 5 feet.
.FRIDAY...Northeast winds around 10 knots, becoming east in the afternoon. Seas 2 to 4 feet, occasionally to 5 feet.
.FRIDAY NIGHT...Southeast winds 5 to 10 knots, becoming south after midnight. Seas around 2 feet.
Winds and seas higher in and near thunderstorms.