GMZ300-181830-
1216 AM CDT Mon May 18 2026
.Synopsis For High Island to the Matagorda Ship Channel Out 60 NM
including Galveston and Matagorda Bays.
A long fetch of moderate to occasionally strong onshore winds
will continue over the next couple of days resulting in higher
than normal waters levels...most notable around high tide
times...and an enhanced rip current risk. Elevated winds and seas
will continue through at least late Monday. Small Craft Advisories
remain in effect through Tuesday morning. Isolated showers and
storms remain possible throughout the day, followed by increasing
chances of storms late Tuesday and beyond.
$$
GMZ350-355-181830-
Coastal waters from Freeport to Matagorda Ship Channel TX out
20 NM-Coastal waters from High Island to Freeport TX out 20 NM-
1216 AM CDT Mon May 18 2026
SMALL CRAFT ADVISORY IN EFFECT THROUGH TUESDAY MORNING
TODAY
Southeast winds around 20 knots with gusts up to
30 knots. Seas 5 to 7 feet, occasionally to 9 feet. Wave Detail:
Southeast 6 feet at 7 seconds. A slight chance of showers with
isolated thunderstorms late.
TONIGHT
Southeast winds 15 to 20 knots with gusts up to
25 knots. Seas 5 to 7 feet, occasionally to 9 feet. Wave Detail:
Southeast 6 feet at 7 seconds.
TUESDAY
Southeast winds 15 to 20 knots. Seas 4 to 6 feet,
occasionally to 8 feet. Wave Detail: Southeast 6 feet at
8 seconds.
TUESDAY NIGHT
Southeast winds 15 to 20 knots, diminishing to
around 15 knots after midnight. Seas 3 to 5 feet. Wave Detail:
Southeast 5 feet at 8 seconds. A chance of showers.
WEDNESDAY
Southeast winds 10 to 15 knots. Seas 3 to 5 feet.
Wave Detail: Southeast 4 feet at 8 seconds. A chance of showers.
WEDNESDAY NIGHT
Southeast winds around 10 knots. Seas 2 to
4 feet. Wave Detail: Southeast 4 feet at 7 seconds.
THURSDAY
Southeast winds around 10 knots. Seas 2 to 4 feet. A
chance of showers and thunderstorms.
THURSDAY NIGHT
Southeast winds 10 to 15 knots. Seas 2 to
4 feet. A chance of thunderstorms. A chance of showers in the
evening, then showers likely after midnight.
FRIDAY
South winds 10 to 15 knots. Seas 2 to 4 feet. A chance
of thunderstorms. Showers.
FRIDAY NIGHT
Southeast winds 10 to 15 knots. Seas 2 to 4 feet.
A chance of showers in the evening, then showers likely with a
chance of thunderstorms after midnight.
Winds and seas higher in and near thunderstorms.
$$
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