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(1/3)
Latest Coastal Waters Forecast by KHGX
Issued 5/18/2026 6:43 AM US/Central.
Valid through 5/18/2026 7:15 PM US/Central.
fzus54 khgx 181143
cwfhgx
expires:202605190015;;764940
coastal waters forecast for texas
national weather service houston/galveston tx
643 am cdt mon may 18 2026
upper texas coastal waters from high island to the matagorda ship
channel out 60 nautical miles including galveston and matagorda
bays.
seas are provided as a range of the average height of the highest
1/3 of the waves...along with the occasional height of the
average highest 10 percent of the waves.
gmz335-190015-
galveston bay-
643 am cdt mon may 18 2026
...small craft advisory in effect through tuesday morning...
.today...southeast winds 20 to 25 knots with gusts up to
30 knots. bay waters rough. a slight chance of showers with
isolated thunderstorms this afternoon.
.tonight...southeast winds 15 to 20 knots with gusts up to
25 knots. bay waters choppy.
.tuesday...southeast winds 15 to 20 knots. bay waters choppy.
.tuesday night...southeast winds 10 to 15 knots. bay waters
slightly choppy. showers likely.
.wednesday...southeast winds around 10 knots. bay waters smooth
to slightly choppy. a chance of thunderstorms. a chance of
showers in the morning, then showers likely in the afternoon.
.wednesday night...southeast winds 5 to 10 knots. bay waters
smooth. a chance of showers after midnight.
.thursday...southeast winds around 10 knots, increasing to 10 to
15 knots in the afternoon. bay waters smooth, increasing to
slightly choppy in the afternoon. a chance of thunderstorms. a
chance of showers in the morning, then showers likely in the
afternoon.
.thursday night...south winds 10 to 15 knots, diminishing to
around 10 knots after midnight. bay waters slightly choppy,
diminishing to smooth after midnight. a chance of thunderstorms.
a chance of showers in the evening, then showers likely after
midnight.
.friday...south winds 10 to 15 knots. bay waters slightly choppy.
showers with a chance of thunderstorms.
.friday night...south winds 10 to 15 knots, diminishing to around
10 knots after midnight. bay waters slightly choppy, diminishing
to smooth after midnight. showers likely with a chance of
thunderstorms.
winds and waves higher in and near thunderstorms.
$$
(2/3)
Latest Coastal Waters Forecast by KHGX
Issued 5/18/2026 6:43 AM US/Central.
Valid through 5/18/2026 7:15 PM US/Central.
fzus54 khgx 181143
cwfhgx
expires:202605190015;;764942
coastal waters forecast for texas
national weather service houston/galveston tx
643 am cdt mon may 18 2026
upper texas coastal waters from high island to the matagorda ship
channel out 60 nautical miles including galveston and matagorda
bays.
seas are provided as a range of the average height of the highest
1/3 of the waves...along with the occasional height of the
average highest 10 percent of the waves.
gmz350-355-190015-
coastal waters from freeport to matagorda ship channel tx out
20 nm-coastal waters from high island to freeport tx out 20 nm-
643 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 4 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 3 to
4 feet. wave detail: southeast 4 feet at 7 seconds.
.thursday...southeast winds 10 to 15 knots. seas 2 to 4 feet. a
chance of thunderstorms in the morning. a chance of showers.
.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. showers
with a chance of thunderstorms.
.friday night...southeast winds around 10 knots. seas 2 to
4 feet. showers likely with a chance of thunderstorms.
winds and seas higher in and near thunderstorms.
$$
(3/3)
Latest Coastal Waters Forecast by KHGX
Issued 5/18/2026 6:43 AM US/Central.
Valid through 5/18/2026 7:15 PM US/Central.
fzus54 khgx 181143
cwfhgx
expires:202605190015;;764943
coastal waters forecast for texas
national weather service houston/galveston tx
643 am cdt mon may 18 2026
upper texas coastal waters from high island to the matagorda ship
channel out 60 nautical miles including galveston and matagorda
bays.
seas are provided as a range of the average height of the highest
1/3 of the waves...along with the occasional height of the
average highest 10 percent of the waves.
gmz370-375-190015-
waters from freeport to matagorda ship channel tx from 20 to
60 nm-waters from high island to freeport tx from 20 to 60 nm-
643 am cdt mon may 18 2026
...small craft advisory in effect through tuesday morning...
.today...southeast winds around 20 knots with gusts up to
25 knots. seas 6 to 8 feet, occasionally to 10 feet. wave detail:
southeast 7 feet at 7 seconds.
.tonight...southeast winds 15 to 20 knots with gusts up to
25 knots. seas 6 to 8 feet, occasionally to 10 feet. wave detail:
southeast 6 feet at 7 seconds.
.tuesday...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 8 seconds.
.tuesday night...southeast winds 10 to 15 knots. seas 5 to
6 feet, occasionally to 8 feet. wave detail: southeast 5 feet at
7 seconds. a chance of showers after midnight.
.wednesday...southeast winds 10 to 15 knots. seas 4 to 6 feet,
occasionally to 8 feet. wave detail: southeast 5 feet at
8 seconds.
.wednesday night...southeast winds around 10 knots. seas around
4 feet. wave detail: southeast 4 feet at 7 seconds.
.thursday...southeast winds around 10 knots. seas 3 to 4 feet. a
chance of showers.
.thursday night...southeast winds around 10 knots. seas 3 to
4 feet. a chance of showers and thunderstorms.
.friday...south winds 10 to 15 knots. seas 3 to 4 feet. showers
likely with a chance of thunderstorms in the morning, then
showers likely in the afternoon.
.friday night...southeast winds 10 to 15 knots. seas 3 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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