Port Update
Corpus Christi, TX
November 20, 2025
Notices
🌅SUNRISE: 0645 hrs.
🌄SUNSET: 1730 hrs.
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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 IS 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.
Weather / Marine Zone Forecast
Coastal Waters Forecast for Texas National Weather Service Corpus Christi TX
1231 PM CST Thu Nov 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.
GMZ200-210730-
1231 PM CST Thu Nov 20 2025
.SYNOPSIS FOR THE MIDDLE TEXAS COASTAL WATERS...
Moderate to occasionally fresh (BF 4-5) southeasterly winds will continue through before becoming more moderate (BF 4) Friday through Sunday, keeping seas generally in the 3-5 ft range.
Isolated to scattered showers and thunderstorms will remain possible through the weekend as an upper-level disturbance approach.
Onshore flow is expected to strengthen to fresh to strong (BF5-6) early next week ahead of the next frontal passage.
$$
GMZ236-237-210730- Copano, Aransas, and Redfish Bays- San Antonio, Mesquite, and Espiritu Santo Bays-
1231 PM CST Thu Nov 20 2025
.REST OF TONIGHT...Southeast winds 10 to 15 knots. Bay and inland waters slightly choppy to occasionally choppy.
.FRIDAY...South winds around 10 knots. Bay and inland waters slightly choppy. A slight chance of showers and thunderstorms in the afternoon.
.FRIDAY NIGHT...Southeast winds 5 to 10 knots. Bay and inland waters smooth. A slight chance of thunderstorms. A slight chance of showers in the evening, then a chance of showers after midnight.
.SATURDAY...East winds 5 to 10 knots. Bay and inland waters smooth. A slight chance of thunderstorms in the morning. A chance of showers.
.SATURDAY NIGHT...East winds 5 to 10 knots, increasing to 10 to 15 knots after midnight. Bay and inland waters slightly choppy to occasionally choppy. A slight chance of showers.
.SUNDAY...Southeast winds 10 to 15 knots with gusts up to 20 knots. Bay and inland waters slightly choppy to occasionally choppy.
.SUNDAY NIGHT...Southeast winds 15 to 20 knots with gusts up to 25 knots. Bay and inland waters choppy.
.MONDAY...South winds 15 to 20 knots. Bay and inland waters choppy. A chance of showers. A chance of thunderstorms in the afternoon.
.MONDAY NIGHT...South winds 10 to 15 knots, becoming west 5 to 10 knots after midnight. Bay and inland waters slightly choppy to occasionally choppy. A chance of showers in the evening.
.TUESDAY...North winds 5 to 10 knots, becoming northeast in the afternoon. Bay and inland waters smooth to slightly choppy.
.TUESDAY NIGHT...East winds around 5 knots, becoming northeast after midnight. Bay and inland waters smooth to slightly choppy. A chance of showers after midnight.
Winds and waves higher in and near thunderstorms.
$$
GMZ231-232-210730- Baffin Bay and Upper Laguna Madre-Corpus Christi and Nueces Bays-
1231 PM CST Thu Nov 20 2025
...SMALL CRAFT SHOULD EXERCISE CAUTION...
.REST OF TONIGHT...Southeast winds 15 to 20 knots, becoming south 10 to 15 knots late. Bay and inland waters choppy. A slight chance of showers early this afternoon.
.FRIDAY...South winds 10 to 15 knots. Bay and inland waters slightly choppy to occasionally choppy. A slight chance of showers and thunderstorms in the afternoon.
.FRIDAY NIGHT...Southeast 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 thunderstorms.
A slight chance of showers in the evening, then a chance of showers after midnight.
.SATURDAY...Southeast winds 5 to 10 knots, becoming east 10 to 15 knots with gusts up to 20 knots in the afternoon. Bay and inland waters slightly choppy to occasionally choppy.
Showers likely with a slight chance of thunderstorms in the morning, then a chance of showers in the afternoon.
.SATURDAY NIGHT...Southeast winds 10 to 15 knots. Bay and inland waters slightly choppy to occasionally choppy. A chance of showers.
.SUNDAY...Southeast winds 10 to 15 knots with gusts up to 20 knots, increasing to 15 to 20 knots with gusts up to 30 knots in the afternoon. Bay and inland waters choppy. A chance of showers in the morning.
.SUNDAY NIGHT...Southeast winds 20 to 25 knots with gusts up to 30 knots. Bay and inland waters choppy to occasionally rough.
.MONDAY...South winds 15 to 20 knots. Bay and inland waters choppy. A chance of showers.
.MONDAY NIGHT...South winds 15 to 20 knots, becoming west 5 to 10 knots after midnight. Bay and inland waters choppy. A chance of showers in the evening.
.TUESDAY...North winds 5 to 10 knots, becoming northeast in the afternoon. Bay and inland waters smooth to slightly choppy.
.TUESDAY NIGHT...East winds 5 to 10 knots, becoming northeast 10 to 15 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.
$$
GMZ255-210730- Coastal waters from Port Aransas to Matagorda Ship Channel out 20 NM-
1231 PM CST Thu Nov 20 2025
...SMALL CRAFT SHOULD EXERCISE CAUTION...
.REST OF TONIGHT...Southeast winds around 15 knots with gusts up to 20 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: Southeast 4 feet at 6 seconds.
.FRIDAY...South winds 10 to 15 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: Southeast 4 feet at 6 seconds. A slight chance of showers and thunderstorms in the afternoon.
.FRIDAY NIGHT...South winds 5 to 10 knots. Seas around 3 feet. Wave Detail: Southeast 2 feet at 7 seconds. A slight chance of thunderstorms.
A slight chance of showers in the evening, then a chance of showers after midnight.
.SATURDAY...East winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail: Southeast 2 feet at 6 seconds. A slight chance of thunderstorms in the morning. A chance of showers.
.SATURDAY NIGHT...East winds 10 to 15 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: Southeast 3 feet at 6 seconds. A slight chance of showers.
.SUNDAY...Southeast winds around 15 knots with gusts up to 20 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: Southeast 4 feet at 6 seconds.
.SUNDAY NIGHT...Southeast winds 15 to 20 knots, becoming south 20 to 25 knots after midnight. Seas 4 to 6 feet, occasionally to 8 feet.
.MONDAY...South winds 15 to 20 knots. Seas 4 to 6 feet, occasionally to 8 feet. A chance of showers. A chance of thunderstorms in the afternoon.
.MONDAY NIGHT...South winds 10 to 15 knots, becoming southwest after midnight. Seas 3 to 4 feet, occasionally to 5 feet. A chance of thunderstorms in the evening. A chance of showers.
.TUESDAY...Northwest winds 5 to 10 knots, becoming northeast in the afternoon. Seas 2 to 4 feet, occasionally to 5 feet.
.TUESDAY NIGHT...East winds 5 to 10 knots, becoming northeast 10 to 15 knots after midnight. Seas 2 to 3 feet. A chance of showers after midnight.
Winds and seas higher in and near thunderstorms.
$$
GMZ250-210730- Coastal waters from Baffin Bay to Port Aransas out 20 NM-
1231 PM CST Thu Nov 20 2025
...SMALL CRAFT SHOULD EXERCISE CAUTION...
.REST OF TONIGHT...Southeast winds 15 to 20 knots with gusts up to 25 knots. Seas 4 to 5 feet, occasionally to 6 feet. Wave Detail: Southeast 5 feet at 6 seconds. A slight chance of showers early this afternoon.
.FRIDAY...South winds 10 to 15 knots with gusts up to 20 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: Southeast 4 feet at 6 seconds. A slight chance of showers and thunderstorms in the afternoon.
.FRIDAY NIGHT...Southeast winds 10 to 15 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: Southeast 3 feet at 6 seconds. A slight chance of thunderstorms.
A slight chance of showers in the evening, then a chance of showers after midnight.
.SATURDAY...Southeast winds 5 to 10 knots, becoming east 10 to 15 knots with gusts up to 20 knots in the afternoon. Seas around 3 feet. Wave Detail: East 2 feet at 3 seconds and southeast 2 feet at 6 seconds.
A slight chance of thunderstorms. Showers likely, mainly in the morning.
.SATURDAY NIGHT...Southeast winds around 15 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: East 3 feet at 5 seconds. A chance of showers.
.SUNDAY...Southeast winds 15 to 20 knots with gusts up to 25 knots. Seas 4 to 5 feet, occasionally to 6 feet. Wave Detail: Southeast 5 feet at 6 seconds. A chance of showers in the morning.
.SUNDAY NIGHT...Southeast winds 20 to 25 knots with gusts up to 30 knots. Seas 4 to 6 feet, occasionally to 8 feet.
.MONDAY...South winds 20 to 25 knots. Seas 4 to 6 feet, occasionally to 8 feet. A chance of showers.
.MONDAY NIGHT...South winds 15 to 20 knots, becoming southwest 10 to 15 knots after midnight. Seas 3 to 5 feet, occasionally to 6 feet. A chance of thunderstorms in the evening. A chance of showers.
.TUESDAY...Northwest winds 5 to 10 knots, becoming northeast in the afternoon. Seas 2 to 4 feet, occasionally to 5 feet.
.TUESDAY NIGHT...East winds 5 to 10 knots, becoming northeast 10 to 15 knots after midnight. Seas 2 to 3 feet. A chance of showers after midnight.
Winds and seas higher in and near thunderstorms.
$$
GMZ275-210730- Waters from Port Aransas to Matagorda Ship Channel from 20 to 60 NM-
1231 PM CST Thu Nov 20 2025
...SMALL CRAFT SHOULD EXERCISE CAUTION...
.REST OF TONIGHT...South winds around 15 knots with gusts up to 20 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: Southeast 4 feet at 6 seconds.
.FRIDAY...South winds 10 to 15 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: Southeast 3 feet at 6 seconds. A slight chance of showers and thunderstorms in the afternoon.
.FRIDAY NIGHT...South winds 10 to 15 knots, diminishing to 5 to 10 knots after midnight. Seas around 3 feet. Wave Detail: Southeast 2 feet at 6 seconds.
A slight chance of showers and thunderstorms in the evening, then a chance of showers after midnight.
.SATURDAY...Southeast winds 5 to 10 knots. Seas around 3 feet. Wave Detail: Southeast 2 feet at 6 seconds. A chance of showers with a slight chance of thunderstorms.
.SATURDAY NIGHT...Southeast winds 10 to 15 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: Southeast 3 feet at 6 seconds. A slight chance of showers.
.SUNDAY...Southeast winds around 15 knots with gusts up to 20 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: Southeast 3 feet at 6 seconds. A chance of showers in the afternoon.
.SUNDAY NIGHT...Southeast winds 15 to 20 knots, becoming south 20 to 25 knots after midnight. Seas 4 to 6 feet, occasionally to 8 feet.
.MONDAY...South winds 15 to 20 knots. Seas 4 to 6 feet, occasionally to 8 feet. A chance of showers and thunderstorms in the afternoon.
.MONDAY NIGHT...South winds 15 to 20 knots, becoming southwest 10 to 15 knots after midnight. Seas 4 to 5 feet, occasionally to 6 feet. A chance of thunderstorms in the evening. A chance of showers.
.TUESDAY...West winds 5 to 10 knots, becoming northeast in the afternoon. Seas 3 to 4 feet, occasionally to 5 feet. A chance of showers in the morning.
.TUESDAY NIGHT...East winds 5 to 10 knots, becoming northeast 10 to 15 knots after midnight. Seas around 3 feet. A chance of showers after midnight.
Winds and seas higher in and near thunderstorms.
$$
GMZ270-210730- Waters from Baffin Bay to Port Aransas from 20 to 60 NM-
1231 PM CST Thu Nov 20 2025
...SMALL CRAFT SHOULD EXERCISE CAUTION...
.REST OF TONIGHT...Southeast winds 15 to 20 knots with gusts up to 25 knots. Seas around 4 feet, occasionally to 5 feet. Wave Detail: Southeast 4 feet at 6 seconds.
.FRIDAY...South winds 10 to 15 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: Southeast 4 feet at 6 seconds. A slight chance of showers and thunderstorms in the afternoon.
.FRIDAY NIGHT...Southeast winds 10 to 15 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: Southeast 3 feet at 6 seconds. A slight chance of showers and thunderstorms.
.SATURDAY...Southeast winds 5 to 10 knots, becoming east 10 to 15 knots in the afternoon. Seas around 3 feet. Wave Detail: Southeast 2 feet at 6 seconds. A chance of showers with a slight chance of thunderstorms.
.SATURDAY NIGHT...Southeast winds 10 to 15 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: Southeast 3 feet at 6 seconds and east 2 feet at 3 seconds. A slight chance of showers.
.SUNDAY...Southeast winds 15 to 20 knots with gusts up to 25 knots. Seas around 4 feet, occasionally to 5 feet. Wave Detail: Southeast 4 feet at 6 seconds. A chance of showers.
.SUNDAY NIGHT...Southeast winds 20 to 25 knots with gusts up to 30 knots. Seas 4 to 6 feet, occasionally to 8 feet.
.MONDAY...South winds 20 to 25 knots. Seas 5 to 6 feet, occasionally to 8 feet. A chance of showers in the afternoon.
.MONDAY NIGHT...South winds 15 to 20 knots, becoming southwest 10 to 15 knots after midnight. Seas 4 to 5 feet, occasionally to 6 feet. A chance of thunderstorms in the evening. A chance of showers.
.TUESDAY...West winds 5 to 10 knots, becoming northeast in the afternoon. Seas 3 to 4 feet, occasionally to 5 feet. A chance of showers in the morning.
.TUESDAY NIGHT...East winds 5 to 10 knots, increasing to 10 to 15 knots after midnight. Seas 2 to 3 feet. A chance of showers after midnight.
Winds and seas higher in and near thunderstorms.
