Port Update
Corpus Christi, TX
October 17, 2025
Notices
🌅SUNRISE: 0730 hrs.
🌄SUNSET: 1900 hrs.
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Central Daylight Time – 16 days until Day Lights Saving
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.
Weather / Marine Zone Forecast
Coastal Waters Forecast for Texas National Weather Service Corpus Christi TX
1231 AM CDT Fri Oct 17 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.
GMZ200-171815-
1231 AM CDT Fri Oct 17 2025
.SYNOPSIS FOR THE MIDDLE TEXAS COASTAL WATERS...
Onshore flow will generally be gentle to moderate (BF 3-4) through Saturday night.
A frontal boundary nearing the coast on Sunday will allow for a brief opportunity for winds to be more out of the northeast on Sunday at moderate strength.
Showers and thunderstorms will be possible today, mainly north of Port Aransas.
Only isolated showers are expected from Saturday through the end of the period. Onshore flow returns early next week.
$$
GMZ236-237-171815- Copano, Aransas, and Redfish Bays- San Antonio, Mesquite, and Espiritu Santo Bays-
1231 AM CDT Fri Oct 17 2025
.TODAY...Southeast winds around 5 knots, becoming northeast late this morning, then becoming east this afternoon. Bay and inland waters smooth. A chance of showers this morning.
A slight chance of thunderstorms late this morning and early afternoon. A slight chance of showers early this afternoon.
.TONIGHT...Southeast winds around 10 knots. Bay and inland waters slightly choppy.
.SATURDAY...South winds 5 to 10 knots. Bay and inland waters smooth.
.SATURDAY NIGHT...South winds around 10 knots, becoming 5 to 10 knots after midnight. Bay and inland waters smooth.
.SUNDAY...North winds 5 to 10 knots, becoming northeast 10 to 15 knots in the afternoon. Bay and inland waters slightly choppy to occasionally choppy.
.SUNDAY NIGHT...East winds around 10 knots. Bay and inland waters slightly choppy.
.MONDAY...Southeast winds 5 to 10 knots. Bay and inland waters smooth.
.MONDAY NIGHT...South winds 10 to 15 knots. Bay and inland waters slightly choppy to occasionally choppy.
.TUESDAY...South winds 5 to 10 knots, becoming southeast in the afternoon. Bay and inland waters smooth.
.TUESDAY NIGHT...Southeast winds around 10 knots. Bay and inland waters slightly choppy.
Winds and waves higher in and near thunderstorms.
$$
GMZ231-232-171815- Baffin Bay and Upper Laguna Madre-Corpus Christi and Nueces Bays-
1231 AM CDT Fri Oct 17 2025
.TODAY...South winds around 5 knots, becoming east late this morning and afternoon. Bay and inland waters smooth.
.TONIGHT...East winds 10 to 15 knots, becoming southeast 5 to 10 knots after midnight. Bay and inland waters slightly choppy to occasionally choppy.
.SATURDAY...South winds 5 to 10 knots, becoming southeast 10 to 15 knots in the afternoon. Bay and inland waters slightly choppy to occasionally choppy.
.SATURDAY NIGHT...Southeast winds 10 to 15 knots, becoming south 5 to 10 knots after midnight. Bay and inland waters slightly choppy to occasionally choppy.
.SUNDAY...Northwest winds 5 to 10 knots, becoming northeast 10 to 15 knots with gusts up to 20 knots in the afternoon. Bay and inland waters slightly choppy to occasionally choppy.
.SUNDAY NIGHT...East winds 10 to 15 knots. Bay and inland waters slightly choppy to occasionally choppy.
.MONDAY...Southeast winds 5 to 10 knots, increasing to 10 to 15 knots in the afternoon. Bay and inland waters slightly choppy to occasionally choppy.
.MONDAY NIGHT...Southeast winds 10 to 15 knots. Bay and inland waters slightly choppy to occasionally choppy.
.TUESDAY...South winds 5 to 10 knots, becoming southeast 10 to 15 knots in the afternoon. Bay and inland waters slightly choppy to occasionally choppy.
.TUESDAY NIGHT...Southeast winds 10 to 15 knots. Bay and inland waters slightly choppy to occasionally choppy.
$$
GMZ255-171815- Coastal waters from Port Aransas to Matagorda Ship Channel out 20 NM-
1231 AM CDT Fri Oct 17 2025
.TODAY...Southeast winds 5 to 10 knots, becoming east late this morning and afternoon. Seas 2 to 3 feet. Wave Detail: Southeast 3 feet at 5 seconds. A chance of thunderstorms this morning.
A chance of showers. A slight chance of thunderstorms this afternoon.
.TONIGHT...Southeast winds 10 to 15 knots. Seas around 3 feet. Wave Detail: Southeast 3 feet at 6 seconds.
.SATURDAY...South winds 10 to 15 knots, diminishing to 5 to 10 knots in the afternoon. Seas 2 to 3 feet. Wave Detail: Southeast 3 feet at 6 seconds.
.SATURDAY NIGHT...South winds around 10 knots, becoming 5 to 10 knots after midnight. Seas 2 to 3 feet. Wave Detail: Southeast 2 feet at 5 seconds.
.SUNDAY...Northwest winds 5 to 10 knots, becoming northeast 10 to 15 knots in the afternoon. Seas 2 to 3 feet. Wave Detail: Northeast 2 feet at 4 seconds and southeast 2 feet at 6 seconds.
.SUNDAY NIGHT...East winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: East 3 feet at 5 seconds.
.MONDAY...Southeast winds 10 to 15 knots, diminishing to 5 to 10 knots in the afternoon. Seas 2 to 3 feet.
.MONDAY NIGHT...South winds 10 to 15 knots. Seas 2 to 3 feet.
.TUESDAY...South winds 10 to 15 knots, becoming southeast 5 to 10 knots in the afternoon. Seas 2 to 3 feet.
.TUESDAY NIGHT...Southeast winds 10 to 15 knots. Seas 2 to 3 feet.
Winds and seas higher in and near thunderstorms.
$$
GMZ250-171815- Coastal waters from Baffin Bay to Port Aransas out 20 NM-
1231 AM CDT Fri Oct 17 2025
.TODAY...Southeast winds 5 to 10 knots, becoming east late this morning and afternoon. Seas 2 to 3 feet. Wave Detail: Southeast 3 feet at 5 seconds.
A slight chance of showers and thunderstorms late this morning and afternoon.
.TONIGHT...East winds 10 to 15 knots, becoming southeast after midnight. Seas around 3 feet. Wave Detail: East 3 feet at 7 seconds.
.SATURDAY...South winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail: Southeast 3 feet at 6 seconds.
.SATURDAY NIGHT...Southeast winds 10 to 15 knots, becoming south after midnight. Seas 2 to 3 feet. Wave Detail: Southeast 2 feet at 5 seconds.
.SUNDAY...Northwest winds 5 to 10 knots, becoming northeast 10 to 15 knots with gusts up to 20 knots in the afternoon. Seas around 2 feet. Wave Detail: Northeast 2 feet at 4 seconds and southeast 2 feet at 6 seconds.
.SUNDAY NIGHT...East winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: East 3 feet at 5 seconds.
.MONDAY...Southeast winds 5 to 10 knots. Seas 2 to 3 feet.
.MONDAY NIGHT...Southeast winds 10 to 15 knots. Seas around 3 feet.
.TUESDAY...South winds 10 to 15 knots, becoming southeast 5 to 10 knots in the afternoon. Seas 2 to 3 feet.
.TUESDAY NIGHT...Southeast winds 10 to 15 knots. Seas 2 to 3 feet.
Winds and seas higher in and near thunderstorms.
$$
GMZ275-171815- Waters from Port Aransas to Matagorda Ship Channel from 20 to 60 NM-
1231 AM CDT Fri Oct 17 2025
.TODAY...Southeast winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail: Southeast 3 feet at 5 seconds. A chance of showers.
.TONIGHT...Southeast winds 10 to 15 knots. Seas around 3 feet. Wave Detail: East 3 feet at 7 seconds. A slight chance of showers. A slight chance of thunderstorms after midnight.
.SATURDAY...South winds 10 to 15 knots, diminishing to 5 to 10 knots in the afternoon. Seas 2 to 3 feet. Wave Detail: Southeast 3 feet at 6 seconds. A slight chance of showers in the morning.
.SATURDAY NIGHT...South winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail: Southeast 2 feet at 5 seconds.
.SUNDAY...Northwest winds 5 to 10 knots, becoming northeast 10 to 15 knots in the afternoon. Seas 2 to 3 feet. Wave Detail: Northeast 3 feet at 5 seconds and north 1 foot at 2 seconds.
A slight chance of showers and thunderstorms in the morning.
.SUNDAY NIGHT...East winds 10 to 15 knots. Seas around 3 feet. Wave Detail: Northeast 3 feet at 5 seconds and southeast 2 feet at 6 seconds.
.MONDAY...Southeast winds 5 to 10 knots. Seas around 3 feet.
.MONDAY NIGHT...Southeast winds 10 to 15 knots. Seas around 3 feet.
.TUESDAY...South winds 5 to 10 knots, becoming southeast in the afternoon. Seas 2 to 3 feet.
.TUESDAY NIGHT...Southeast winds 10 to 15 knots. Seas 2 to 3 feet.
Winds and seas higher in and near thunderstorms.
$$
GMZ270-171815- Waters from Baffin Bay to Port Aransas from 20 to 60 NM-
1231 AM CDT Fri Oct 17 2025
.TODAY...Southeast winds 5 to 10 knots, becoming east this afternoon. Seas 2 to 3 feet. Wave Detail: East 3 feet at 7 seconds and southeast 2 feet at 4 seconds. A slight chance of thunderstorms this morning.
A chance of showers. A chance of thunderstorms this afternoon.
.TONIGHT...Southeast winds 10 to 15 knots. Seas around 3 feet. Wave Detail: East 3 feet at 7 seconds. A slight chance of showers.
.SATURDAY...South winds 10 to 15 knots, diminishing to 5 to 10 knots in the afternoon. Seas 2 to 3 feet. Wave Detail: Southeast 3 feet at 6 seconds.
.SATURDAY NIGHT...South winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail: Southeast 2 feet at 5 seconds.
.SUNDAY...Northwest winds 5 to 10 knots, becoming northeast 10 to 15 knots in the afternoon. Seas 2 to 3 feet. Wave Detail: Northeast 2 feet at 4 seconds and southeast 2 feet at 6 seconds.
A slight chance of showers and thunderstorms in the morning.
.SUNDAY NIGHT...East winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: Northeast 2 feet at 5 seconds and southeast 2 feet at 6 seconds.
.MONDAY...Southeast winds 5 to 10 knots. Seas around 3 feet.
.MONDAY NIGHT...Southeast winds 10 to 15 knots. Seas around 3 feet.
.TUESDAY...South winds 5 to 10 knots, becoming southeast in the afternoon. Seas 2 to 3 feet.
.TUESDAY NIGHT...Southeast winds 10 to 15 knots. Seas 2 to 3 feet.
Winds and seas higher in and near thunderstorms.
