Port Update
Corpus Christi, TX
September 24, 2025
Notices
🌅SUNRISE: 0715 hrs.
🌄SUNSET: 1930 hrs.
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Central Daylight Time
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 see attached MSIB 90-24 The Coast Guard is advising all mariners to exercise caution and remain within the skin of the ship while transiting under the Corpus Christi New Harbor Bridge due to fall hazards created during construction.
It is recommended practice until further notice to ensure safety of vessel and crew during transit.
Please see attached for more information.
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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 76-25 as the Port of Harlingen noticed the Coast Guard that construction has begun on their main dock in the turning basin, work commenced 4 August 2025 and will continue through 25 April 2026.
Monday – Saturday 0700 to 1730.
Please see attached for more information.
Weather / Marine Zone Forecast
Coastal Waters Forecast for Texas National Weather Service Corpus Christi TX
1247 AM CDT Wed Sep 24 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.
GMZ200-241815-
1247 AM CDT Wed Sep 24 2025
.SYNOPSIS FOR THE MIDDLE TEXAS COASTAL WATERS...
Gentle to moderate (BF 3-4) south to southeasterly flow will continue through tonight before shifting to the north/northeast briefly on
Thursday as a cold front moves across the waters before returning to onshore flow Thursday night or Friday,
depending on a reinforcing surge of high pressure temporarily shifting winds northeast to east.
Medium chances for showers and thunderstorms Wednesday will increase to high chances Wednesday night through Thursday.
Rain chances decrease to low Friday and will persist through this weekend.
$$
GMZ236-237-241815- Copano, Aransas, and Redfish Bays- San Antonio, Mesquite, and Espiritu Santo Bays-
1247 AM CDT Wed Sep 24 2025
.TODAY...South winds around 10 knots. Bay and inland waters slightly choppy. A slight chance of showers and thunderstorms late this morning. A chance of showers and thunderstorms this afternoon.
.TONIGHT...Southeast winds 5 to 10 knots, becoming north after midnight. Bay and inland waters smooth to slightly choppy. A chance of thunderstorms. A chance of showers in the evening, then showers after midnight.
.THURSDAY...North winds 5 to 10 knots. Bay and inland waters smooth to slightly choppy. A chance of thunderstorms. Showers, mainly in the morning.
.THURSDAY NIGHT...Southeast winds 5 to 10 knots, becoming north after midnight. Bay and inland waters smooth to slightly choppy. A slight chance of showers and thunderstorms.
.FRIDAY...North winds 5 to 10 knots, becoming east in the afternoon. Bay and inland waters smooth.
.FRIDAY NIGHT...Southeast winds 5 to 10 knots. Bay and inland waters smooth.
.SATURDAY...East winds 5 to 10 knots. Bay and inland waters smooth.
.SATURDAY NIGHT...East winds 5 to 10 knots. Bay and inland waters smooth.
.SUNDAY...East winds 5 to 10 knots. Bay and inland waters smooth.
.SUNDAY NIGHT...East winds 5 to 10 knots. Bay and inland waters smooth.
Winds and waves higher in and near thunderstorms.
$$
GMZ231-232-241815- Baffin Bay and Upper Laguna Madre-Corpus Christi and Nueces Bays-
1247 AM CDT Wed Sep 24 2025
.TODAY...South winds 5 to 10 knots, becoming southeast 10 to 15 knots with gusts up to 20 knots this afternoon. Bay and inland waters slightly choppy to occasionally choppy.
A chance of showers and thunderstorms this afternoon.
.TONIGHT...Southeast winds 10 to 15 knots, becoming south 5 to 10 knots after midnight. Bay and inland waters slightly choppy to occasionally choppy. A chance of showers.
A slight chance of thunderstorms in the evening, then a chance of thunderstorms after midnight.
.THURSDAY...North winds 5 to 10 knots, becoming northeast in the afternoon. Bay and inland waters smooth to slightly choppy. A chance of thunderstorms. Showers, mainly in the morning.
.THURSDAY NIGHT...East winds 5 to 10 knots, becoming southwest after midnight. Bay and inland waters smooth. A chance of showers and thunderstorms.
.FRIDAY...North winds 5 to 10 knots, becoming east in the afternoon. Bay and inland waters smooth. A slight chance of showers and thunderstorms in the morning.
.FRIDAY NIGHT...Southeast winds 5 to 10 knots. Bay and inland waters smooth.
.SATURDAY...Northeast winds 5 to 10 knots. Bay and inland waters smooth.
.SATURDAY NIGHT...East winds 5 to 10 knots. Bay and inland waters smooth.
.SUNDAY...Northeast winds 5 to 10 knots, becoming east 10 to 15 knots in the afternoon. Bay and inland waters slightly choppy to occasionally choppy.
.SUNDAY NIGHT...East winds 10 to 15 knots, diminishing to 5 to 10 knots after midnight. Bay and inland waters slightly choppy to occasionally choppy.
Winds and waves higher in and near thunderstorms.
$$
GMZ255-241815- Coastal waters from Port Aransas to Matagorda Ship Channel out 20 NM-
1247 AM CDT Wed Sep 24 2025
.TODAY...South winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: Southeast 3 feet at 5 seconds. A slight chance of showers and thunderstorms late this morning.
A chance of showers and thunderstorms early this afternoon, then a slight chance of showers and thunderstorms late.
.TONIGHT...Southeast winds around 10 knots, becoming southwest after midnight. Seas around 2 feet. Wave Detail: Southeast 2 feet at 5 seconds. A chance of thunderstorms.
A chance of showers in the evening, then showers after midnight.
.THURSDAY...North winds 10 to 15 knots, becoming northeast in the afternoon. Seas around 2 feet. Wave Detail: North 2 feet at 3 seconds and southeast 2 feet at 5 seconds.
A chance of thunderstorms. Showers, mainly in the morning.
.THURSDAY NIGHT...East winds 5 to 10 knots, becoming northeast after midnight. Seas around 2 feet in the evening, then around 2 feet or less. Wave Detail: East 1 foot at 5 seconds.
A chance of showers and thunderstorms, mainly in the evening.
.FRIDAY...North winds around 10 knots, becoming northeast in the afternoon. Seas around 2 feet. Wave Detail: Northeast 2 feet at 4 seconds and southeast 1 foot at 5 seconds.
.FRIDAY NIGHT...East winds 5 to 10 knots. Seas around 2 feet in the evening, then around 2 feet or less. Wave Detail: Southeast 1 foot at 5 seconds, becoming southeast 1 foot at 4 seconds.
.SATURDAY...Northeast winds 5 to 10 knots. Seas around 2 feet or less.
.SATURDAY NIGHT...East winds 5 to 10 knots. Seas around 2 feet.
.SUNDAY...East winds around 10 knots. Seas around 2 feet.
.SUNDAY NIGHT...East winds 10 to 15 knots. Seas around 2 feet.
Winds and seas higher in and near thunderstorms.
$$
GMZ250-241815- Coastal waters from Baffin Bay to Port Aransas out 20 NM-
1247 AM CDT Wed Sep 24 2025
.TODAY...South winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: Southeast 3 feet at 5 seconds.
A slight chance of showers and thunderstorms late this morning. A chance of showers and thunderstorms early this afternoon, then a slight chance of showers and thunderstorms late.
.TONIGHT...Southeast winds 10 to 15 knots, becoming south after midnight. Seas 2 to 3 feet. Wave Detail: Southeast 2 feet at 5 seconds.
A chance of showers with a slight chance of thunderstorms in the evening, then showers likely with a chance of thunderstorms after midnight.
.THURSDAY...North winds 10 to 15 knots, becoming northeast in the afternoon. Seas around 2 feet. Wave Detail: North 2 feet at 3 seconds and southeast 2 feet at 5 seconds. A chance of thunderstorms. Showers.
.THURSDAY NIGHT...East winds 5 to 10 knots. Seas around 2 feet. Wave Detail: East 2 feet at 5 seconds. A chance of showers and thunderstorms.
.FRIDAY...North winds around 10 knots, becoming northeast in the afternoon. Seas around 2 feet. Wave Detail: East 2 feet at 5 seconds. A slight chance of showers and thunderstorms in the morning.
.FRIDAY NIGHT...East winds 5 to 10 knots. Seas around 2 feet. Wave Detail: East 2 feet at 5 seconds.
.SATURDAY...Northeast winds 5 to 10 knots. Seas around 2 feet or less.
.SATURDAY NIGHT...East winds around 10 knots. Seas around 2 feet.
.SUNDAY...East winds around 10 knots. Seas around 2 feet.
.SUNDAY NIGHT...East winds around 10 knots. Seas around 2 feet.
Winds and seas higher in and near thunderstorms.
$$
GMZ270-275-241815- 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-
1247 AM CDT Wed Sep 24 2025
.TODAY...South winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: Southeast 3 feet at 5 seconds.
A slight chance of showers and thunderstorms this morning, then a chance of showers and thunderstorms early this afternoon. A slight chance of showers and thunderstorms late.
.TONIGHT...South winds around 10 knots. Seas around 2 feet. Wave Detail: Southeast 2 feet at 5 seconds.
A slight chance of showers and thunderstorms in the evening, then a chance of showers and thunderstorms after midnight.
.THURSDAY...Northwest winds around 10 knots, becoming north in the afternoon. Seas 2 to 3 feet. Wave Detail: North 2 feet at 4 seconds and southeast 2 feet at 5 seconds. A chance of thunderstorms. Showers.
.THURSDAY NIGHT...Northeast winds 5 to 10 knots. Seas around 2 feet. Wave Detail: Northeast 2 feet at 4 seconds and southeast 1 foot at 5 seconds. A chance of showers and thunderstorms.
.FRIDAY...Northeast winds around 10 knots. Seas around 2 feet. Wave Detail: North 2 feet at 4 seconds and southeast 1 foot at 5 seconds. A slight chance of showers and thunderstorms in the morning.
.FRIDAY NIGHT...East winds 5 to 10 knots. Seas around 2 feet. Wave Detail: Northeast 2 feet at 4 seconds and southeast 1 foot at 5 seconds.
.SATURDAY...Northeast winds around 10 knots. Seas around 2 feet or less, then around 2 feet in the afternoon.
.SATURDAY NIGHT...East winds around 10 knots. Seas around 2 feet.
.SUNDAY...Northeast winds 10 to 15 knots. Seas around 2 feet.
.SUNDAY NIGHT...East winds 10 to 15 knots. Seas 2 to 3 feet. A chance of showers after midnight.
Winds and seas higher in and near thunderstorms.
