Port Update
Corpus Christi, TX
September 18, 2025
Notices
🌅SUNRISE: 0715 hrs.
🌄SUNSET: 1930 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
1200 AM CDT Thu Sep 18 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.
GMZ200-181715-
1200 AM CDT Thu Sep 18 2025
.SYNOPSIS FOR THE MIDDLE TEXAS COASTAL WATERS...
A gentle to moderate (BF 3-4) east to southeasterly breeze will persist through early next week.
There will be a low to medium chance (30-60%) of showers and thunderstorms through the week into the weekend, with slightly higher chances next week (60-70%).
$$
GMZ236-237-181715- Copano, Aransas, and Redfish Bays- San Antonio, Mesquite, and Espiritu Santo Bays-
1200 AM CDT Thu Sep 18 2025
.TODAY...East winds 5 to 10 knots, becoming southeast late. Bay and inland waters smooth.
.TONIGHT...Southeast winds 5 to 10 knots. Bay and inland waters smooth.
.THURSDAY...East winds 5 to 10 knots, increasing to 10 to 15 knots in the afternoon. Bay and inland waters slightly choppy to occasionally choppy.
.THURSDAY NIGHT...Southeast winds 10 to 15 knots, diminishing to 5 to 10 knots after midnight. Bay and inland waters slightly choppy to occasionally choppy.
.FRIDAY...Northeast winds 5 to 10 knots, becoming east in the afternoon. Bay and inland waters smooth.
.FRIDAY NIGHT...Southeast winds 5 to 10 knots. Bay and inland waters smooth.
.SATURDAY...East winds 5 to 10 knots. Bay and inland waters smooth. A chance of showers.
.SATURDAY NIGHT...Southeast winds 5 to 10 knots. Bay and inland waters smooth. A chance of showers and thunderstorms after midnight.
.SUNDAY...Southeast winds 5 to 10 knots, increasing to 10 to 15 knots in the afternoon. Bay and inland waters slightly choppy to occasionally choppy. A chance of showers and thunderstorms.
.SUNDAY NIGHT...Southeast winds around 10 knots. Bay and inland waters slightly choppy. A chance of showers after midnight.
Winds and waves higher in and near thunderstorms.
$$
GMZ231-232-181715- Baffin Bay and Upper Laguna Madre-Corpus Christi and Nueces Bays-
1200 AM CDT Thu Sep 18 2025
.TODAY...East winds 5 to 10 knots, increasing to 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 this morning.
A slight chance of thunderstorms. A slight chance of showers this afternoon.
.TONIGHT...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.
.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.
.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.
.FRIDAY...Northeast winds 5 to 10 knots, becoming east 10 to 15 knots in the afternoon. Bay and inland waters slightly choppy to occasionally choppy. A slight chance of showers and thunderstorms in the afternoon.
.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.
.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.
.SATURDAY 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.
.SUNDAY...Southeast 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.
.SUNDAY NIGHT...Southeast winds 10 to 15 knots. Bay and inland waters slightly choppy to occasionally choppy. A chance of showers after midnight.
Winds and waves higher in and near thunderstorms.
$$
GMZ255-181715- Coastal waters from Port Aransas to Matagorda Ship Channel out 20 NM-
1200 AM CDT Thu Sep 18 2025
.TODAY...East winds 10 to 15 knots. Seas around 3 feet. Wave Detail: East 3 feet at 6 seconds.
.TONIGHT...Southeast winds 10 to 15 knots. Seas around 3 feet. Wave Detail: East 3 feet at 6 seconds.
.THURSDAY...East winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: Southeast 3 feet at 6 seconds.
.THURSDAY NIGHT...East winds 10 to 15 knots, diminishing to 5 to 10 knots after midnight. Seas 2 to 3 feet. Wave Detail: East 3 feet at 6 seconds.
.FRIDAY...East winds 5 to 10 knots, increasing to 10 to 15 knots in the afternoon. Seas around 2 feet. Wave Detail: East 2 feet at 5 seconds. A slight chance of showers in the afternoon.
.FRIDAY NIGHT...East winds 10 to 15 knots, becoming southeast 5 to 10 knots after midnight. Seas 2 to 3 feet. Wave Detail: East 3 feet at 5 seconds.
.SATURDAY...East winds 5 to 10 knots, increasing to 10 to 15 knots in the afternoon. Seas around 2 feet. A chance of showers.
.SATURDAY NIGHT...Southeast winds 10 to 15 knots. Seas around 2 feet. A chance of showers. A chance of thunderstorms after midnight.
.SUNDAY...Southeast winds 10 to 15 knots. Seas around 2 feet. A chance of thunderstorms. Showers likely, mainly in the morning.
.SUNDAY NIGHT...Southeast winds 10 to 15 knots. Seas 2 to 3 feet. A chance of showers.
Winds and seas higher in and near thunderstorms.
$$
GMZ250-181715- Coastal waters from Baffin Bay to Port Aransas out 20 NM-
1200 AM CDT Thu Sep 18 2025
.TODAY...East winds 10 to 15 knots. Seas around 3 feet. Wave Detail: East 3 feet at 6 seconds. A slight chance of showers and thunderstorms until late afternoon.
.TONIGHT...Southeast winds 10 to 15 knots. Seas around 3 feet. Wave Detail: East 3 feet at 6 seconds.
.THURSDAY...East winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: East 3 feet at 6 seconds.
.THURSDAY NIGHT...East winds 10 to 15 knots, becoming southeast 5 to 10 knots after midnight. Seas 2 to 3 feet. Wave Detail: East 3 feet at 6 seconds.
.FRIDAY...East winds 5 to 10 knots. Seas around 2 feet. Wave Detail: East 2 feet at 5 seconds. A slight chance of showers.
.FRIDAY NIGHT...East winds 10 to 15 knots, becoming southeast 5 to 10 knots after midnight. Seas around 2 feet. Wave Detail: East 2 feet at 5 seconds. A chance of showers after midnight.
.SATURDAY...East winds 5 to 10 knots. Seas around 2 feet. A chance of showers.
.SATURDAY NIGHT...Southeast winds 10 to 15 knots. Seas 2 to 3 feet. A chance of showers and thunderstorms after midnight.
.SUNDAY...Southeast winds 5 to 10 knots, increasing to 10 to 15 knots in the afternoon. Seas around 2 feet. A chance of thunderstorms. Showers likely, mainly in the morning.
.SUNDAY NIGHT...Southeast winds 10 to 15 knots. Seas 2 to 3 feet. A chance of showers.
Winds and seas higher in and near thunderstorms.
$$
GMZ270-275-181715- 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-
1200 AM CDT Thu Sep 18 2025
.TODAY...East winds 10 to 15 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: East 4 feet at 6 seconds. A slight chance of thunderstorms early this morning. A slight chance of showers until late afternoon.
A slight chance of thunderstorms early this afternoon.
.TONIGHT...Southeast winds 10 to 15 knots. Seas around 3 feet. Wave Detail: East 3 feet at 6 seconds.
.THURSDAY...East winds 10 to 15 knots. Seas around 3 feet. Wave Detail: East 3 feet at 6 seconds.
.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.
.FRIDAY...Northeast winds 5 to 10 knots. Seas around 2 feet. Wave Detail: East 2 feet at 5 seconds. A slight chance of showers in the morning, then a chance of showers in the afternoon.
.FRIDAY NIGHT...East winds 10 to 15 knots, becoming southeast 5 to 10 knots after midnight. Seas around 2 feet. Wave Detail: East 2 feet at 5 seconds. A chance of showers after midnight.
.SATURDAY...East winds 5 to 10 knots. Seas around 2 feet. A chance of showers. A chance of thunderstorms in the afternoon.
.SATURDAY NIGHT...Southeast winds 10 to 15 knots. Seas around 2 feet. A chance of showers in the evening, then showers likely with a chance of thunderstorms after midnight.
.SUNDAY...Southeast winds around 10 knots. Seas around 2 feet. A chance of thunderstorms. Showers likely, mainly in the morning.
.SUNDAY NIGHT...Southeast winds 10 to 15 knots. Seas 2 to 3 feet. A chance of showers in the evening, then showers likely after midnight.
Winds and seas higher in and near thunderstorms.
