Coastal Waters Forecast
Issued by NWS Brownsville, TX

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708
FZUS54 KBRO 181503
CWFBRO

Coastal Waters Forecast for the Lower Texas Coast
National Weather Service Brownsville TX
1003 AM CDT Tue Jun 18 2024

Lower Texas coastal waters from Baffin Bay to the mouth of the
Rio Grande out 60 NM.

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.

GMZ100-190415-
1003 AM CDT Tue Jun 18 2024

.SYNOPSIS...Tropical Storm Warning is now in effect for all marine
zones. Hazardous marine conditions are expected during the
forecast period due to the formation and eventual movement of a
tropical system in the Bay of Campeche. Mariners are strongly
advised to monitor the Coastal Waters Forecast through the next
several days.

$$

GMZ130-132-135-190415-
Laguna Madre from the Port of Brownsville to the Arroyo Colorado-
Laguna Madre from the Arroyo Colorado To 5 NM north of Port
Mansfield TX-
Laguna Madre from 5 nm north of Port Mansfield to Baffin Bay TX-
1003 AM CDT Tue Jun 18 2024

...TROPICAL STORM WARNING IN EFFECT...

.REST OF TODAY...Tropical storm conditions possible. East winds
15 to 20 knots becoming northeast 20 to 25 knots with gusts up to
30 knots this afternoon. Choppy on the bay becoming rough this
afternoon. A chance of showers late this morning. A chance of
thunderstorms. Showers likely this afternoon.
.TONIGHT...Tropical storm conditions expected. Northeast winds
25 to 30 knots becoming 25 to 35 knots after midnight. Very rough
on the bay. A chance of showers in the evening. A chance of
thunderstorms. Showers after midnight.
.WEDNESDAY...Tropical storm conditions expected. Northeast winds
30 to 40 knots. Very rough on the bay. Hazy with patchy fog.
Showers and thunderstorms.
.WEDNESDAY NIGHT...Tropical storm conditions expected. East winds
30 to 40 knots decreasing to 25 to 30 knots after midnight. Very
rough on the bay. Hazy in the evening. Showers and thunderstorms.
.THURSDAY...Tropical storm conditions possible. East winds 20 to
25 knots with gusts up to 35 knots. Rough on the bay. A chance of
thunderstorms in the morning. Showers. Thunderstorms likely in
the afternoon.
.THURSDAY NIGHT...East winds 20 to 25 knots with gusts up to
30 knots decreasing to 15 to 20 knots after midnight. Rough on
the bay becoming choppy after midnight. A chance of thunderstorms
in the evening. Showers. A slight chance of thunderstorms after
midnight.
.FRIDAY...East winds 10 to 15 knots. A moderate chop on the bay.
Showers with a chance of thunderstorms.
.FRIDAY NIGHT...East winds 10 to 15 knots. A moderate chop on the
bay. A chance of thunderstorms in the evening. Showers likely. A
slight chance of thunderstorms after midnight.
.SATURDAY...East winds 10 to 15 knots. A moderate chop on the
bay. Showers with a chance of thunderstorms.
.SATURDAY NIGHT...East winds 10 to 15 knots decreasing to 5 to
10 knots after midnight. A moderate chop on the bay becoming
light chop after midnight. A chance of thunderstorms in the
evening. A chance of showers. A slight chance of thunderstorms
after midnight.

Winds and waves higher in and near thunderstorms.

$$

GMZ150-155-190415-
Gulf waters from Port Mansfield to the Rio Grande out 20 nm-
Gulf waters from Baffin Bay to Port Mansfield out 20 nm-
1003 AM CDT Tue Jun 18 2024

...TROPICAL STORM WARNING IN EFFECT...

.REST OF TODAY...Tropical storm conditions possible. East winds
15 to 20 knots becoming northeast 20 to 25 knots with gusts up to
30 knots this afternoon. Seas 7 to 10 feet, with occasional seas
up to 13 feet. Wave Detail: East 10 feet at 10 seconds. Showers
likely with a chance of thunderstorms.
.TONIGHT...Tropical storm conditions expected. Northeast winds
25 to 35 knots with gusts up to 45 knots. Seas 9 to 11 feet, with
occasional seas up to 14 feet. Wave Detail: East 11 feet at
10 seconds. A chance of showers and thunderstorms in the evening,
then showers with thunderstorms likely after midnight.
.WEDNESDAY...Tropical storm conditions expected. Northeast winds
30 to 40 knots with gusts up to 50 knots. Seas 10 to 13 feet,
with occasional seas up to 17 feet. Wave Detail: East 13 feet at
10 seconds. Hazy with patchy fog. Showers with thunderstorms
likely.
.WEDNESDAY NIGHT...Tropical storm conditions expected. East winds
30 to 40 knots with gusts up to 50 knots decreasing to 25 to
30 knots with gusts up to 40 knots after midnight. Seas 11 to
16 feet, with occasional seas up to 20 feet. Wave Detail: East
14 feet at 10 seconds. Hazy in the evening. Showers and
thunderstorms.
.THURSDAY...Tropical storm conditions possible. East winds 25 to
30 knots decreasing to 20 to 25 knots in the afternoon. Seas 9 to
12 feet, with occasional seas up to 15 feet subsiding to 8 to
10 feet, with occasional seas up to 13 feet in the afternoon.
Wave Detail: East 12 feet at 10 seconds subsiding to Wave Detail:
East 10 feet at 10 seconds. Showers with a chance of
thunderstorms.
.THURSDAY NIGHT...East winds 20 to 25 knots with gusts up to
30 knots decreasing to 15 to 20 knots after midnight. Seas 6 to
9 feet, with occasional seas up to 11 feet. Wave Detail: East
9 feet at 10 seconds. A chance of thunderstorms in the evening.
Showers. A slight chance of thunderstorms after midnight.
.FRIDAY...East winds 15 to 20 knots. Seas 5 to 7 feet, with
occasional seas up to 8 feet. Showers with a chance of
thunderstorms.
.FRIDAY NIGHT...East winds 10 to 15 knots. Seas 5 to 7 feet, with
occasional seas up to 8 feet subsiding to 4 to 5 feet after
midnight. A chance of thunderstorms in the evening. Showers
likely. A slight chance of thunderstorms after midnight.
.SATURDAY...East winds 10 to 15 knots. Seas 4 to 5 feet. A slight
chance of thunderstorms in the morning. Showers. A chance of
thunderstorms in the afternoon.
.SATURDAY NIGHT...East winds 10 to 15 knots. Seas 4 to 5 feet. A
chance of showers with a slight chance of thunderstorms.

Winds and seas higher in and near thunderstorms.

$$

GMZ170-175-190415-
Gulf waters from Port Mansfield to the Rio Grande extending from
20 to 60 nm-
Gulf waters from Baffin Bay to Port Mansfield extending from
20 to 60 nm-
1003 AM CDT Tue Jun 18 2024

...TROPICAL STORM WARNING IN EFFECT...

.REST OF TODAY...Tropical storm conditions possible. East winds
20 to 25 knots becoming northeast 25 to 30 knots this afternoon.
Seas 9 to 12 feet, with occasional seas up to 15 feet. Wave
Detail: East 12 feet at 10 seconds. Showers with a chance of
thunderstorms.
.TONIGHT...Tropical storm conditions expected. Northeast winds
25 to 35 knots increasing to 30 to 40 knots after midnight. Seas
11 to 14 feet, with occasional seas up to 18 feet. Wave Detail:
East 13 feet at 10 seconds. Hazy in the evening. Showers with
thunderstorms likely.
.WEDNESDAY...Tropical storm conditions expected. Northeast winds
30 to 40 knots with gusts up to 50 knots. Seas 12 to 15 feet,
with occasional seas up to 19 feet. Wave Detail: East 15 feet at
10 seconds. Hazy. Showers with thunderstorms likely.
.WEDNESDAY NIGHT...Tropical storm conditions expected. East winds
30 to 40 knots with gusts up to 50 knots decreasing to 25 to
30 knots with gusts up to 40 knots after midnight. Seas 12 to
16 feet, with occasional seas up to 20 feet. Wave Detail: East
16 feet at 10 seconds. Hazy in the evening. Showers with
thunderstorms likely.
.THURSDAY...Tropical storm conditions possible. East winds 25 to
30 knots. Seas 10 to 13 feet, with occasional seas up to 17 feet.
Wave Detail: East 13 feet at 10 seconds. Showers with a chance of
thunderstorms.
.THURSDAY NIGHT...East winds 20 to 25 knots. Seas 8 to 11 feet,
with occasional seas up to 14 feet. Wave Detail: East 11 feet at
10 seconds. A chance of thunderstorms in the evening. Showers. A
slight chance of thunderstorms after midnight.
.FRIDAY...East winds 15 to 20 knots. Seas 6 to 9 feet, with
occasional seas up to 11 feet. A slight chance of thunderstorms
in the morning. Showers. A chance of thunderstorms in the
afternoon.
.FRIDAY NIGHT...East winds around 15 knots. Seas 5 to 7 feet,
with occasional seas up to 8 feet. A chance of thunderstorms in
the evening. Showers. A slight chance of thunderstorms after
midnight.
.SATURDAY...East winds 10 to 15 knots. Seas 5 to 7 feet, with
occasional seas up to 8 feet. A slight chance of thunderstorms in
the morning. Showers. A chance of thunderstorms in the afternoon.
.SATURDAY NIGHT...East winds 15 to 20 knots decreasing to 10 to
15 knots after midnight. Seas 4 to 6 feet, with occasional seas
up to 7 feet. A chance of showers in the evening. A slight chance
of thunderstorms. Showers likely after midnight.

Winds and seas higher in and near thunderstorms.

$$