Coastal Waters Forecast
Issued by NWS Houston/Galveston, TX

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FZUS54 KHGX 200938
CWFHGX

Coastal Waters Forecast
National Weather Service Houston/Galveston TX
338 AM CST Mon Nov 20 2017

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.

GMZ300-202215-
Synopsis for High Island to the Matagorda Ship Channel out 60
nautical miles including Galveston and Matagorda Bays
338 AM CST Mon Nov 20 2017

.SYNOPSIS FOR HIGH ISLAND TO MATAGORDA SHIP CHANNEL OUT 60 NM...
Northeast to east winds today will gradually become south to
southeast by Tuesday before the next cold front pushes off the
coast Tuesday night or early Wednesday morning. Scattered showers
and thunderstorms will be possible across the coastal waters ahead
of the front. Behind the front, caution flags will likely be
needed for strengthening north winds and building seas. Conditions
are expected to improve by Thursday with light onshore flow
becoming established by Friday.


$$

GMZ330-335-202215-
Matagorda Bay-Galveston Bay-
338 AM CST Mon Nov 20 2017

.TODAY...East winds around 10 knots becoming southeast in the
afternoon. Bay waters smooth to slightly choppy.
.TONIGHT...Southeast winds 5 to 10 knots. Bay waters smooth. A
slight chance of showers after midnight.
.TUESDAY...South winds 5 to 10 knots. Bay waters smooth. A slight
chance of showers in the morning. A chance of showers and
thunderstorms in the afternoon.
.TUESDAY NIGHT...East winds 5 to 10 knots becoming northeast
10 to 15 knots after midnight. Bay waters smooth becoming
slightly choppy after midnight. A chance of showers and
thunderstorms in the evening, then a slight chance of showers
after midnight.
.WEDNESDAY...North winds 15 to 20 knots decreasing to 10 to
15 knots in the afternoon. Bay waters choppy becoming slightly
choppy in the afternoon.
.WEDNESDAY NIGHT...North winds 10 to 15 knots. Bay waters
slightly choppy.
.THURSDAY...North winds 5 to 10 knots. Bay waters smooth.
.THURSDAY NIGHT...North winds 5 to 10 knots. Bay waters smooth.
.FRIDAY...Northeast winds around 5 knots becoming southeast in
the afternoon. Bay waters smooth.
.FRIDAY NIGHT...South winds 5 to 10 knots. Bay waters smooth.

$$

GMZ350-355-202215-
Coastal waters from Freeport to the Matagorda Ship Channel out
20 NM-Coastal waters from High Island to Freeport out 20 NM-
338 AM CST Mon Nov 20 2017

.TODAY...East winds 10 to 15 knots. Seas 2 to 3 feet.
.TONIGHT...Southeast winds around 10 knots. Seas 2 feet. A slight
chance of showers.
.TUESDAY...South winds 5 to 10 knots. Seas 2 feet. A slight
chance of showers in the morning, then a chance of showers and
thunderstorms in the afternoon.
.TUESDAY NIGHT...East winds 10 to 15 knots becoming northeast
15 to 20 knots after midnight. Seas 2 to 3 feet. A chance of
thunderstorms in the evening. A chance of showers.
.WEDNESDAY...Northeast winds 15 to 25 knots becoming north 15 to
20 knots in the afternoon. Seas 2 to 4 feet.
.WEDNESDAY NIGHT...North winds 15 to 20 knots decreasing to 10 to
15 knots after midnight. Seas 2 to 4 feet.
.THURSDAY...North winds 10 to 15 knots decreasing to 5 to
10 knots in the afternoon. Seas 2 to 3 feet.
.THURSDAY NIGHT...North winds 5 to 10 knots. Seas 1 to 2 feet.
.FRIDAY...North winds around 5 knots becoming south in the
afternoon. Seas 0 to 1 feet.
.FRIDAY NIGHT...South winds 5 to 10 knots. Seas 1 to 2 feet.

$$

GMZ370-375-202215-
Waters from Freeport to the Matagorda Ship Channel from 20 to
60 NM-Waters from High Island to Freeport from 20 to 60 NM-
338 AM CST Mon Nov 20 2017

.TODAY...East winds 10 to 15 knots. Seas 2 to 3 feet. A slight
chance of rain.
.TONIGHT...Southeast winds around 10 knots. Seas 2 to 3 feet. A
slight chance of showers.
.TUESDAY...South winds 5 to 10 knots. Seas 2 to 3 feet. A chance
of showers. A chance of thunderstorms in the afternoon.
.TUESDAY NIGHT...East winds 10 to 15 knots becoming northeast
15 to 20 knots after midnight. Seas 2 to 4 feet. A chance of
showers and thunderstorms.
.WEDNESDAY...Northeast winds 20 to 25 knots becoming north 15 to
20 knots in the afternoon. Seas 3 to 5 feet. A slight chance of
showers.
.WEDNESDAY NIGHT...North winds 15 to 20 knots. Seas 4 to 6 feet
with occasional seas up to 7 feet.
.THURSDAY...North winds 10 to 15 knots. Seas 2 to 4 feet.
.THURSDAY NIGHT...North winds 10 to 15 knots decreasing to 5 to
10 knots after midnight. Seas 2 to 3 feet.
.FRIDAY...North winds 5 to 10 knots becoming south in the
afternoon. Seas 1 foot.
.FRIDAY NIGHT...South winds 5 to 10 knots. Seas 1 to 2 feet.

$$


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