Port Update
Corpus Christi, TX
October 20, 2025
Notices
🌅SUNRISE: 0730 hrs.
🌄SUNSET: 1900 hrs.
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Central Daylight Time – 13 days until Day Lights Saving is over
GMT-5
MARSEC LEVEL 1
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When Outbound Passages are restricted to pilot boarding no earlier than Sunrise and later than the time detailed below for the various locations:
FROM VIOLA BASIN: -5 1/2 HOURS BEFORE SUNSET
FROM TULE BASIN: - 5 HOURS BEFORE SUNSET
FROM CHEMICAL BASIN: 4 1/2 HOURS BEFORE SUNSET
FROM AVERY BASIN: 4 HOURS BEFORE SUNSET
FROM MAIN BASIN: 3 1/2 HOURS BEFORE SUNSET
FROM INGLESIDE: 2 1/2 HOURS BEFORE SUNSET
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PORT OF CORPUS CHRISTI OPEN
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Please find attached MSIB 36-25 as the 2025 Hurricane Season commences 1st JUNE and continues thru 30 NOVEMBER.
Please see attached for more information.
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Please find attached MSIB xx-25 as The Captain of the Port is establishing a worksite in the Corpus Christi ship channel, Inner Harbor as Callan Marine will be removing a sumbe4rged pipeline in the inner Harbor on 23 October 2025 from 0800 to 1400.
Please see attached for more information.
Weather / Marine Zone Forecast
Coastal Waters Forecast for Texas...CORRECTED National Weather Service Corpus Christi TX
1233 AM CDT Mon Oct 20 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.
GMZ200-201815-
1233 AM CDT Mon Oct 20 2025
.SYNOPSIS FOR THE MIDDLE TEXAS COASTAL WATERS...
Onshore flow resumes tonight into Monday at gentle to moderate levels.
Late in the week winds may approach fresh to strong levels.
Rain chances are minimal through much of the week before a few showers and storms become possible Friday and Saturday.
$$
GMZ236-237-201815- Copano, Aransas, and Redfish Bays- San Antonio, Mesquite, and Espiritu Santo Bays-
1233 AM CDT Mon Oct 20 2025
.TODAY...Southeast winds 10 to 15 knots. Bay and inland waters slightly choppy to occasionally choppy.
.TONIGHT...South winds 10 to 15 knots with gusts up to 20 knots. Bay and inland waters slightly choppy to occasionally choppy.
.TUESDAY...South winds 5 to 10 knots, becoming southeast in the afternoon. Bay and inland waters smooth.
.TUESDAY NIGHT...Southeast winds 5 to 10 knots, becoming east after midnight. Bay and inland waters smooth. A slight chance of showers and thunderstorms.
.WEDNESDAY...East winds 10 to 15 knots. Bay and inland waters slightly choppy to occasionally choppy. A slight chance of showers and thunderstorms in the morning.
.WEDNESDAY NIGHT...Southeast winds 10 to 15 knots. Bay and inland waters slightly choppy to occasionally choppy.
.THURSDAY...Southeast winds 10 to 15 knots. Bay and inland waters slightly choppy to occasionally choppy.
.THURSDAY NIGHT...Southeast winds 15 to 20 knots. Bay and inland waters choppy.
.FRIDAY...Southeast winds 15 to 20 knots. Bay and inland waters choppy.
.FRIDAY NIGHT...South winds 15 to 20 knots. Bay and inland waters choppy. A chance of showers after midnight.
Winds and waves higher in and near thunderstorms.
$$
GMZ231-232-201815- Baffin Bay and Upper Laguna Madre-Corpus Christi and Nueces Bays-
1233 AM CDT Mon Oct 20 2025
.TODAY...Southeast winds 5 to 10 knots, increasing to 10 to 15 knots with gusts up to 20 knots late. Bay and inland waters slightly choppy to occasionally choppy.
.TONIGHT...Southeast winds 15 to 20 knots, becoming south after midnight. Bay and inland waters choppy.
.TUESDAY...South winds 10 to 15 knots, becoming southeast 5 to 10 knots in the afternoon. Bay and inland waters slightly choppy to occasionally choppy.
.TUESDAY NIGHT...Southeast winds 5 to 10 knots. Bay and inland waters smooth. A slight chance of showers after midnight.
.WEDNESDAY...East winds 5 to 10 knots, increasing to 10 to 15 knots with gusts up to 20 knots in the afternoon. Bay and inland waters slightly choppy to occasionally choppy. A slight chance of showers in the morning.
.WEDNESDAY NIGHT...Southeast winds 10 to 15 knots. Bay and inland waters slightly choppy to occasionally choppy.
.THURSDAY...Southeast winds 10 to 15 knots. Bay and inland waters slightly choppy to occasionally choppy.
.THURSDAY NIGHT...Southeast winds 15 to 20 knots. Bay and inland waters choppy.
.FRIDAY...Southeast winds 15 to 20 knots, increasing to 20 to 25 knots in the afternoon. Bay and inland waters choppy to occasionally rough.
.FRIDAY NIGHT...Southeast winds 20 to 25 knots, becoming south 15 to 20 knots after midnight. Bay and inland waters choppy to occasionally rough.
$$
GMZ255-201815- Coastal waters from Port Aransas to Matagorda Ship Channel out 20 NM-
1233 AM CDT Mon Oct 20 2025
.TODAY...Southeast winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: East 3 feet at 6 seconds.
.TONIGHT...South winds 15 to 20 knots. Seas 2 to 4 feet, occasionally to 5 feet. Wave Detail: Southeast 3 feet at 5 seconds.
.TUESDAY...South winds 10 to 15 knots, becoming southeast around 5 knots in the afternoon. Seas 2 to 3 feet. Wave Detail: Southeast 3 feet at 6 seconds.
.TUESDAY NIGHT...Southeast winds 5 to 10 knots, becoming east 10 to 15 knots after midnight. Seas around 2 feet. Wave Detail: Southeast 2 feet at 6 seconds. A slight chance of thunderstorms.
A slight chance of showers in the evening, then a chance of showers after midnight.
.WEDNESDAY...East winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: East 3 feet at 5 seconds. A slight chance of showers and thunderstorms in the morning.
.WEDNESDAY NIGHT...Southeast winds around 15 knots. Seas 2 to 3 feet. Wave Detail: East 3 feet at 5 seconds.
.THURSDAY...Southeast winds 10 to 15 knots. Seas 2 to 3 feet.
.THURSDAY NIGHT...Southeast winds 15 to 20 knots, increasing to 20 to 25 knots after midnight. Seas 3 to 5 feet, occasionally to 6 feet.
.FRIDAY...Southeast winds 20 to 25 knots, diminishing to 15 to 20 knots in the afternoon. Seas 4 to 5 feet, occasionally to 6 feet. A chance of showers in the morning.
.FRIDAY NIGHT...South winds 15 to 20 knots. Seas around 4 feet, occasionally to 5 feet. A chance of showers after midnight.
Winds and seas higher in and near thunderstorms.
$$
GMZ250-201815- Coastal waters from Baffin Bay to Port Aransas out 20 NM-
1233 AM CDT Mon Oct 20 2025
.TODAY...Southeast winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: East 3 feet at 6 seconds.
.TONIGHT...South winds 15 to 20 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: Southeast 3 feet at 5 seconds.
.TUESDAY...South winds 10 to 15 knots, becoming southeast 5 to 10 knots in the afternoon. Seas 2 to 3 feet. Wave Detail: Southeast 3 feet at 6 seconds.
.TUESDAY NIGHT...Southeast winds around 10 knots. Seas around 2 feet. Wave Detail: Southeast 2 feet at 5 seconds. A slight chance of showers after midnight.
.WEDNESDAY...East winds 10 to 15 knots. Seas around 2 feet. Wave Detail: Southeast 2 feet at 5 seconds. A slight chance of showers and thunderstorms in the morning.
.WEDNESDAY NIGHT...Southeast winds around 15 knots. Seas 2 to 3 feet. Wave Detail: East 3 feet at 5 seconds.
.THURSDAY...Southeast winds 10 to 15 knots. Seas around 3 feet.
.THURSDAY NIGHT...Southeast winds 15 to 20 knots, increasing to 20 to 25 knots after midnight. Seas 3 to 5 feet, occasionally to 6 feet.
.FRIDAY...Southeast winds 20 to 25 knots. Seas 4 to 5 feet, occasionally to 6 feet.
.FRIDAY NIGHT...Southeast winds around 20 knots. Seas 4 to 5 feet, occasionally to 6 feet. A chance of showers after midnight.
Winds and seas higher in and near thunderstorms.
$$
GMZ270-275-201815- 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-
1233 AM CDT Mon Oct 20 2025
.TODAY...Southeast winds 10 to 15 knots. Seas around 3 feet. Wave Detail: East 3 feet at 6 seconds.
.TONIGHT...South winds 10 to 15 knots with gusts up to 20 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: South 3 feet at 4 seconds and east 3 feet at 7 seconds.
.TUESDAY...South winds 10 to 15 knots, becoming southeast around 5 knots in the afternoon. Seas 2 to 3 feet. Wave Detail: Southeast 3 feet at 6 seconds.
.TUESDAY NIGHT...Southeast winds 5 to 10 knots. Seas around 2 feet. Wave Detail: Southeast 2 feet at 6 seconds. A slight chance of showers in the evening, then a chance of showers after midnight.
.WEDNESDAY...East winds 10 to 15 knots. Seas around 2 feet. Wave Detail: East 2 feet at 5 seconds.
A chance of showers with a slight chance of thunderstorms in the morning, then a slight chance of showers in the afternoon.
.WEDNESDAY NIGHT...East winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: East 3 feet at 5 seconds.
.THURSDAY...Southeast winds 10 to 15 knots. Seas 2 to 3 feet.
.THURSDAY NIGHT...Southeast winds 15 to 20 knots. Seas 3 to 4 feet, occasionally to 5 feet.
.FRIDAY...Southeast winds 15 to 20 knots. Seas 4 to 5 feet, occasionally to 6 feet. A chance of showers.
.FRIDAY NIGHT...Southeast winds 15 to 20 knots. Seas 4 to 5 feet, occasionally to 6 feet. A chance of showers after midnight.
Winds and seas higher in and near thunderstorms.
