Port Update

Corpus Christi, TX

September 16, 2025

Notices

🌅SUNRISE: 0715 hrs.
🌄SUNSET:  1945 hrs.
===================
Central Daylight Time
GMT-5
MARSEC LEVEL 1
========================================
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
========================================
PORT OF CORPUS CHRISTI OPEN
==============================
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.
=================================================
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.
================================
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
 
1245 PM CDT Tue Sep 16 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.
 
 
GMZ200-170615-
 
1245 PM CDT Tue Sep 16 2025
 
.SYNOPSIS FOR THE MIDDLE TEXAS COASTAL WATERS...
 
A gentle to moderate (BF 3-4) east to southeasterly breeze will persist through the rest of the week.
 
There will be a low to medium chance (30-60%) of showers and thunderstorms through the week into the weekend.
 
Seas will generally range from 3 to 4 feet through midweek then from 2 to 3 feet.
 
$$
 
GMZ236-237-170615- Copano, Aransas, and Redfish Bays- San Antonio, Mesquite, and Espiritu Santo Bays-
 
1245 PM CDT Tue Sep 16 2025
 
.TONIGHT...East winds 10 to 15 knots, diminishing to 5 to 10 knots after midnight. Bay and inland waters slightly choppy to occasionally choppy.
.WEDNESDAY...East winds 5 to 10 knots, increasing to 10 to 15 knots in the afternoon. Bay and inland waters slightly choppy to occasionally choppy.
.WEDNESDAY NIGHT...Southeast winds 10 to 15 knots, diminishing to 5 to 10 knots after midnight. Bay and inland waters slightly choppy to occasionally choppy. A slight chance of showers after midnight.
.THURSDAY...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.
.THURSDAY NIGHT...East winds 10 to 15 knots, becoming southeast 5 to 10 knots after midnight. Bay and inland waters slightly choppy to occasionally choppy. A slight chance of showers after midnight.
.FRIDAY...East winds 5 to 10 knots. Bay and inland waters smooth. A chance of showers.
.FRIDAY NIGHT...East winds 5 to 10 knots. Bay and inland waters smooth. A chance of showers after midnight.
.SATURDAY...East winds 5 to 10 knots. Bay and inland waters smooth. A chance of showers. A chance of thunderstorms in the afternoon.
.SATURDAY NIGHT...Southeast winds 5 to 10 knots. Bay and inland waters smooth. A chance of showers after midnight.
.SUNDAY...Southeast winds 5 to 10 knots. Bay and inland waters smooth. A chance of showers and thunderstorms.
.SUNDAY NIGHT...Southeast winds 5 to 10 knots. Bay and inland waters smooth.
 
Winds and waves higher in and near thunderstorms.
 
$$
 
GMZ231-232-170615- Baffin Bay and Upper Laguna Madre-Corpus Christi and Nueces Bays-
 
1245 PM CDT Tue Sep 16 2025
 
.TONIGHT...East winds 10 to 15 knots with gusts up to 20 knots, diminishing to 5 to 10 knots after midnight. Bay and inland waters slightly choppy to occasionally choppy. A slight chance of showers this evening.
A slight chance of thunderstorms. A 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 thunderstorms.
A chance of showers, mainly in the morning.
.WEDNESDAY NIGHT...East winds 10 to 15 knots with gusts up to 20 knots, becoming southeast 5 to 10 knots after midnight. Bay and inland waters slightly choppy to occasionally choppy. A slight chance of showers in the evening, then a chance of showers after midnight.
.THURSDAY...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 chance of showers.
A slight chance of thunderstorms in the afternoon.
.THURSDAY NIGHT...East winds 10 to 15 knots with gusts up to 20 knots, becoming southeast 5 to 10 knots after midnight. Bay and inland waters slightly choppy to occasionally choppy. A slight chance of showers in the evening, then a chance of showers with a slight chance of thunderstorms after midnight.
.FRIDAY...East winds 5 to 10 knots, increasing to 10 to 15 knots in the afternoon. Bay and inland waters slightly choppy to occasionally choppy. A chance of showers.
.FRIDAY NIGHT...East winds 10 to 15 knots, becoming southeast 5 to 10 knots after midnight. Bay and inland waters slightly choppy to occasionally choppy. A chance of showers after midnight.
.SATURDAY...East winds 5 to 10 knots, increasing to 10 to 15 knots in the afternoon. Bay and inland waters slightly choppy to occasionally choppy. A chance of showers. A chance of thunderstorms in the afternoon.
.SATURDAY NIGHT...East winds 10 to 15 knots, becoming southeast 5 to 10 knots after midnight. Bay and inland waters slightly choppy to occasionally choppy. A chance of showers after midnight.
.SUNDAY...Southeast winds 5 to 10 knots, becoming east 10 to 15 knots in the afternoon. Bay and inland waters slightly choppy to occasionally choppy. A chance of showers and thunderstorms.
.SUNDAY NIGHT...Southeast winds 10 to 15 knots, diminishing to 5 to 10 knots after midnight. Bay and inland waters slightly choppy to occasionally choppy. A chance of showers after midnight.
 
Winds and waves higher in and near thunderstorms.
 
$$
 
GMZ255-170615- Coastal waters from Port Aransas to Matagorda Ship Channel out 20 NM-
 
1245 PM CDT Tue Sep 16 2025
 
.TONIGHT...East winds 10 to 15 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: East 3 feet at 6 seconds. A slight chance of showers and thunderstorms early this evening.
A slight chance of showers after midnight. A slight chance of thunderstorms late.
.WEDNESDAY...East winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: East 3 feet at 6 seconds. A slight chance of showers.
.WEDNESDAY NIGHT...Southeast winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: East 3 feet at 6 seconds. A slight chance of showers.
.THURSDAY...East winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: East 3 feet at 6 seconds. A slight chance of showers.
.THURSDAY NIGHT...East winds 10 to 15 knots with gusts up to 20 knots, becoming southeast 5 to 10 knots after midnight. Seas 2 to 3 feet. Wave Detail: East 3 feet at 5 seconds. A slight chance of showers.
.FRIDAY...East winds 5 to 10 knots. Seas around 2 feet. Wave Detail: East 2 feet at 5 seconds. A chance of showers.
.FRIDAY NIGHT...East winds 10 to 15 knots, becoming southeast 5 to 10 knots after midnight. Seas around 2 feet. A chance of showers.
.SATURDAY...East winds 5 to 10 knots. Seas around 2 feet. A chance of showers and thunderstorms.
.SATURDAY NIGHT...Southeast winds 5 to 10 knots. Seas 2 to 3 feet. A chance of showers.
.SUNDAY...Southeast winds 5 to 10 knots. Seas 2 to 3 feet. A chance of showers and thunderstorms.
.SUNDAY NIGHT...Southeast winds 10 to 15 knots. Seas 2 to 3 feet. A chance of showers after midnight.
 
Winds and seas higher in and near thunderstorms.
 
$$
 
GMZ250-170615- Coastal waters from Baffin Bay to Port Aransas out 20 NM-
 
1245 PM CDT Tue Sep 16 2025
 
.TONIGHT...East winds 10 to 15 knots. Seas around 3 feet. Wave Detail: East 3 feet at 6 seconds. A chance of showers and thunderstorms early this evening, then a slight chance of showers and thunderstorms late this evening. A chance of showers and thunderstorms after midnight.
.WEDNESDAY...East winds 10 to 15 knots. Seas around 3 feet. Wave Detail: East 3 feet at 6 seconds. A chance of showers. A chance of thunderstorms, mainly in the morning.
.WEDNESDAY NIGHT...Southeast winds 10 to 15 knots. Seas around 3 feet. Wave Detail: East 3 feet at 6 seconds. A slight chance of showers in the evening, then a chance of showers after midnight.
.THURSDAY...East winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: East 3 feet at 6 seconds. A chance of showers.
.THURSDAY NIGHT...East winds 10 to 15 knots with gusts up to 20 knots, becoming southeast 5 to 10 knots after midnight. Seas 2 to 3 feet. Wave Detail: East 3 feet at 6 seconds.
A slight chance of showers in the evening, then a chance of showers with a slight chance of thunderstorms after midnight.
.FRIDAY...East winds 5 to 10 knots. Seas around 2 feet. Wave Detail: East 2 feet at 5 seconds. A chance of showers.
.FRIDAY NIGHT...East winds 5 to 10 knots. Seas around 2 feet. A chance of showers.
.SATURDAY...East winds 5 to 10 knots. Seas around 2 feet. A chance of showers.
.SATURDAY NIGHT...Southeast winds 5 to 10 knots. Seas 2 to 3 feet. A chance of showers.
.SUNDAY...Southeast winds 5 to 10 knots. Seas 2 to 3 feet. A chance of thunderstorms in the morning. A chance of showers.
.SUNDAY NIGHT...Southeast winds 10 to 15 knots. Seas 2 to 3 feet. A chance of showers after midnight.
 
Winds and seas higher in and near thunderstorms.
 
$$
 
GMZ270-275-170615- 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-
 
1245 PM CDT Tue Sep 16 2025
 
.TONIGHT...East winds 10 to 15 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: East 4 feet at 6 seconds. A chance of thunderstorms this evening. A chance of showers.
A slight chance of thunderstorms after midnight.
.WEDNESDAY...East winds 10 to 15 knots. Seas around 3 feet. Wave Detail: East 3 feet at 6 seconds. A chance of showers with a slight chance of thunderstorms.
.WEDNESDAY NIGHT...East winds 10 to 15 knots. Seas around 3 feet. Wave Detail: East 3 feet at 6 seconds. A slight chance of showers in the evening, then a chance of showers after midnight.  
.THURSDAY...East winds 10 to 15 knots. Seas around 3 feet. Wave Detail: East 3 feet at 6 seconds. A chance of showers.
.THURSDAY NIGHT...East winds 10 to 15 knots, diminishing to 5 to 10 knots after midnight. Seas 2 to 3 feet. Wave Detail: East 3 feet at 5 seconds.
A slight chance of showers in the evening, then a chance of showers after midnight.
.FRIDAY...East winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail: East 2 feet at 6 seconds. A chance of showers.
.FRIDAY NIGHT...East winds 10 to 15 knots, diminishing to 5 to 10 knots after midnight. Seas 2 to 3 feet. A chance of showers.
.SATURDAY...East winds 5 to 10 knots. Seas 2 to 3 feet. A chance of thunderstorms. Showers likely, mainly in the morning.
.SATURDAY NIGHT...East winds 5 to 10 knots. Seas 2 to 3 feet. A chance of showers in the evening, then showers likely after midnight.
.SUNDAY...Southeast winds 5 to 10 knots. Seas around 3 feet. A chance of thunderstorms. Showers likely, mainly in the morning.
.SUNDAY NIGHT...Southeast winds around 10 knots. Seas 2 to 3 feet. A chance of showers.
 
Winds and seas higher in and near thunderstorms.

Attachments

  • MSIB 76-25, Port of Harlingen, Dock Construction.pdf(264 KB )
  • MSIB 90-24 Harbor Bridge Construction.pdf(940 KB )
  • MSIB 36-25 Hurricane Preparedness final.pdf(4.69 MB )

Disclaimer: For quality assurance purposes please note well that while the information contained in this website is regularly vetted for accuracy it is not intended to replace the local knowledge or expertise pertaining to port conditions of our marine operations personnel.

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