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National Weather Service Marine Forecast FZUS54 KBRO

FZUS54 KBRO 180922
CWFBRO

Coastal Waters Forecast
National Weather Service Brownsville TX
422 AM CDT Tue May 18 2021

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

GMZ100-182130-
Synopsis for Baffin Bay to Rio Grande out 60 nm-
422 AM CDT Tue May 18 2021

SYNOPSIS
A strong pressure gradient along the lower Texas coast will
keep winds and seas elevated through much of the upcoming
forecast period. Small craft advisory conditions will become more
prevalent on the Gulf waters around midweek, with small craft
exercise caution levels on the bay. Showers and thunderstorms
return around midweek and continue through late week.



GMZ130-132-135-182130-
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-
422 AM CDT Tue May 18 2021

SMALL CRAFT SHOULD EXERCISE CAUTION


TODAY
Southeast winds 15 to 20 knots. Choppy on the bay.
Slight chance of thunderstorms in the morning. Slight chance of
showers through the day. Slight chance of thunderstorms in the
afternoon.

TONIGHT
Southeast winds 15 to 20 knots. Choppy on the bay.
Slight chance of showers and thunderstorms in the evening, then
chance of showers and thunderstorms after midnight.

WEDNESDAY
Southeast winds 15 to 20 knots. Choppy on the bay.
Showers and thunderstorms likely in the morning, then showers and
thunderstorms in the afternoon.

WEDNESDAY NIGHT
Southeast winds 10 to 15 knots. A moderate
chop on the bay. Showers and thunderstorms.

THURSDAY
Southeast winds 5 to 10 knots. A light chop on the
bay. Chance of showers and thunderstorms.

THURSDAY NIGHT
East winds 10 to 15 knots becoming southeast
5 to 10 knots after midnight. A moderate chop on the bay
subsiding to a light chop after midnight. Chance of showers and
thunderstorms.

FRIDAY
East winds 5 to 10 knots. A light chop on the bay.
Chance of showers and thunderstorms.

FRIDAY NIGHT
Southeast winds 5 to 10 knots. A light chop on
the bay. Chance of showers and thunderstorms.

SATURDAY
East winds 10 to 15 knots. A moderate chop on the
bay. Showers and thunderstorms likely.

SATURDAY NIGHT
Southeast winds 10 to 15 knots. A moderate chop
on the bay. Chance of showers and thunderstorms.



GMZ150-155-182130-
Coastal waters from Port Mansfield to the Rio Grande out 20 nm-
Coastal waters from Baffin Bay to Port Mansfield out 20 nm-
422 AM CDT Tue May 18 2021

SMALL CRAFT SHOULD EXERCISE CAUTION


TODAY
Southeast winds 15 to 20 knots. Seas 4 to 6 feet with
occasional seas up to 7 feet. Slight chance of thunderstorms in
the morning. Slight chance of showers through the day. Slight
chance of thunderstorms in the afternoon.

TONIGHT
Southeast winds 15 to 20 knots. Seas 5 to 7 feet with
occasional seas up to 8 feet. Slight chance of showers and
thunderstorms in the evening, then chance of showers and
thunderstorms after midnight.

WEDNESDAY
Southeast winds 15 to 20 knots. Seas 5 to 7 feet
with occasional seas up to 8 feet. Showers and thunderstorms
likely in the morning, then showers and thunderstorms in the
afternoon.

WEDNESDAY NIGHT
East winds 15 to 20 knots becoming southeast
10 to 15 knots after midnight. Seas 5 to 8 feet with occasional
seas up to 9 feet. Showers and thunderstorms.

THURSDAY
Southeast winds 5 to 10 knots. Seas 5 to 7 feet with
occasional seas up to 8 feet. Chance of showers and
thunderstorms.

THURSDAY NIGHT
Southeast winds 10 to 15 knots. Seas 4 to
6 feet with occasional seas up to 7 feet. Chance of showers and
thunderstorms.

FRIDAY
Southeast winds 5 to 10 knots becoming east 10 to
15 knots in the afternoon. Seas 4 to 6 feet with occasional seas
up to 7 feet. Chance of showers and thunderstorms.

FRIDAY NIGHT
Southeast winds 10 to 15 knots. Seas 4 to 6 feet
with occasional seas up to 7 feet. Chance of showers and
thunderstorms.

SATURDAY
East winds 10 to 15 knots. Seas 5 to 7 feet with
occasional seas up to 8 feet. Showers and thunderstorms likely.

SATURDAY NIGHT
Southeast winds 10 to 15 knots. Seas 6 to
9 feet with occasional seas up to 10 feet. Chance of showers and
thunderstorms.



GMZ170-175-182130-
Waters from Port Mansfield to the Rio Grande extending from 20 to
60 nm-
Waters from Baffin Bay to Port Mansfield extending from 20 to
60 nm-
422 AM CDT Tue May 18 2021

SMALL CRAFT SHOULD EXERCISE CAUTION


TODAY
Southeast winds 15 to 20 knots. Seas 4 to 6 feet with
occasional seas up to 7 feet. Slight chance of showers and
thunderstorms in the afternoon.

TONIGHT
Southeast winds 15 to 20 knots. Seas 5 to 8 feet with
occasional seas up to 9 feet. Slight chance of showers and
thunderstorms.

WEDNESDAY
Southeast winds 15 to 20 knots. Seas 6 to 9 feet
with occasional seas up to 10 feet. Chance of showers and
thunderstorms in the morning, then showers and thunderstorms
likely in the afternoon.

WEDNESDAY NIGHT
Southeast winds 15 to 20 knots. Seas 7 to
9 feet with occasional seas up to 10 feet. Showers and
thunderstorms.

THURSDAY
Southeast winds 10 to 15 knots. Seas 6 to 8 feet with
occasional seas up to 9 feet. Showers and thunderstorms likely.

THURSDAY NIGHT
Southeast winds 10 to 15 knots. Seas 6 to
8 feet with occasional seas up to 9 feet. Chance of showers and
thunderstorms.

FRIDAY
Southeast winds 5 to 10 knots becoming east 10 to
15 knots in the afternoon. Seas 6 to 8 feet with occasional seas
up to 9 feet. Chance of showers and thunderstorms.

FRIDAY NIGHT
Southeast winds 10 to 15 knots. Seas 6 to 8 feet
with occasional seas up to 9 feet. Chance of showers and
thunderstorms.

SATURDAY
East winds 10 to 15 knots. Seas 7 to 9 feet with
occasional seas up to 10 feet. Showers and thunderstorms likely.

SATURDAY NIGHT
East winds 15 to 20 knots diminishing to 10 to
15 knots after midnight. Seas 8 to 10 feet with occasional seas
up to 12 feet. Chance of showers and thunderstorms.