Coastal Waters Forecast
Issued by NWS Houston/Galveston, TX

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FZUS54 KHGX 220253
CWFHGX

Coastal Waters Forecast
National Weather Service Houston/Galveston TX
853 PM CST Sun Jan 21 2018

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.

GMZ300-221515-
Synopsis for High Island to the Matagorda Ship Channel out 60
nautical miles including Galveston and Matagorda Bays
853 PM CST Sun Jan 21 2018

.SYNOPSIS FOR HIGH ISLAND TO MATAGORDA SHIP CHANNEL OUT 60 NM...
Southerly winds will continue tonight until a cold front pushes
off the coast Monday morning. This means warm moist air will ride
over the colder Gulf waters along the coast and cause sea fog.
Some dense sea fog will be possible especially in the bays where
water temperatures are lower. Fog should end Monday morning as a
drier airmass arrives. Offshore winds should support conditions
below advisory levels and then decrease Monday night into Tuesday.
The next cold front is expected this coming weekend which means
moisture will increase towards the end of the week with sea fog.

$$

GMZ330-335-221515-
Matagorda Bay-Galveston Bay-
853 PM CST Sun Jan 21 2018

...DENSE FOG ADVISORY IN EFFECT UNTIL 6 AM CST MONDAY...

.REST OF TONIGHT...South winds 10 to 15 knots becoming southwest
after midnight. Bay waters slightly choppy. Areas of fog. A
chance of showers early in the evening. Showers and thunderstorms
likely after midnight.
.MONDAY...Northwest winds 10 to 15 knots. Bay waters slightly
choppy.
.MONDAY NIGHT...Northwest winds 5 to 10 knots. Bay waters smooth.
.TUESDAY...North winds 5 to 10 knots. Bay waters smooth.
.TUESDAY NIGHT...Northeast winds 5 to 10 knots. Bay waters
smooth.
.WEDNESDAY...Northeast winds 10 to 15 knots decreasing to 5 to
10 knots in the afternoon. Bay waters slightly choppy becoming
smooth in the afternoon.
.WEDNESDAY NIGHT...Northeast winds 5 to 10 knots. Bay waters
smooth.
.THURSDAY...East winds around 10 knots. Bay waters smooth to
slightly choppy.
.THURSDAY NIGHT...East winds around 10 knots. Bay waters smooth
to slightly choppy. A slight chance of showers.
.FRIDAY...Southeast winds 10 to 15 knots. Bay waters slightly
choppy. A chance of showers.
.FRIDAY NIGHT...Southeast winds 10 to 15 knots becoming south
5 to 10 knots after midnight. Bay waters slightly choppy becoming
smooth after midnight. A chance of showers and isolated
thunderstorms.

$$

GMZ350-355-221515-
Coastal waters from Freeport to the Matagorda Ship Channel out
20 NM-Coastal waters from High Island to Freeport out 20 NM-
853 PM CST Sun Jan 21 2018

...DENSE FOG ADVISORY IN EFFECT UNTIL 6 AM CST MONDAY...

.REST OF TONIGHT...South winds 10 to 15 knots becoming southwest
after midnight. Seas 3 to 4 feet. Areas of fog. A slight chance
of showers late in the evening. A chance of showers and isolated
thunderstorms after midnight.
.MONDAY...Northwest winds 10 to 15 knots. Seas 3 to 4 feet.
.MONDAY NIGHT...North winds 10 to 15 knots. Seas 2 to 4 feet.
.TUESDAY...North winds 10 to 15 knots becoming northeast 5 to
10 knots in the afternoon. Seas 2 to 3 feet.
.TUESDAY NIGHT...Northeast winds 10 to 15 knots. Seas 2 to
3 feet.
.WEDNESDAY...Northeast winds 10 to 15 knots. Seas 2 to 3 feet.
.WEDNESDAY NIGHT...Northeast winds 10 to 15 knots. Seas 2 to
3 feet.
.THURSDAY...East winds 10 to 15 knots. Seas 2 to 3 feet.
.THURSDAY NIGHT...East winds 10 to 15 knots. Seas 2 to 4 feet. A
slight chance of showers.
.FRIDAY...Southeast winds 10 to 15 knots. Seas 3 to 4 feet. A
chance of showers.
.FRIDAY NIGHT...Southeast winds 10 to 15 knots. Seas 4 to 5 feet
with occasional seas up to 6 feet. A chance of showers and
isolated thunderstorms.

$$

GMZ370-375-221515-
Waters from Freeport to the Matagorda Ship Channel from 20 to
60 NM-Waters from High Island to Freeport from 20 to 60 NM-
853 PM CST Sun Jan 21 2018

...Small Craft Should Exercise Caution...

.REST OF TONIGHT...South winds around 15 knots becoming southwest
after midnight. Seas 4 to 5 feet with occasional seas up to
6 feet. A slight chance of showers early in the evening, then
showers likely and isolated thunderstorms after midnight.
.MONDAY...Northwest winds 15 to 20 knots. Seas 4 to 5 feet with
occasional seas up to 6 feet. A slight chance of showers and
isolated thunderstorms in the morning.
.MONDAY NIGHT...North winds 15 to 20 knots. Seas 3 to 5 feet.
.TUESDAY...North winds 15 to 20 knots becoming northeast 10 to
15 knots in the afternoon. Seas 3 to 4 feet.
.TUESDAY NIGHT...Northeast winds 10 to 15 knots. Seas 3 to
4 feet.
.WEDNESDAY...Northeast winds 15 to 20 knots decreasing to 10 to
15 knots in the afternoon. Seas 3 to 5 feet. A slight chance of
showers.
.WEDNESDAY NIGHT...Northeast winds 10 to 15 knots. Seas 3 to
5 feet.
.THURSDAY...East winds around 15 knots. Seas 3 to 5 feet.
.THURSDAY NIGHT...East winds around 15 knots. Seas 4 to 5 feet
with occasional seas up to 6 feet. A slight chance of showers.
.FRIDAY...Southeast winds around 15 knots. Seas 4 to 5 feet with
occasional seas up to 6 feet. A chance of showers.
.FRIDAY NIGHT...Southeast winds 10 to 15 knots. Seas 5 to 6 feet
with occasional seas up to 7 feet. A chance of showers and
isolated thunderstorms.

$$


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