Coastal Waters Forecast
Issued by NWS Brownsville, TX

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FZUS54 KBRO 180339
CWFBRO

Coastal Waters Forecast
National Weather Service Brownsville TX
939 PM CST Fri Nov 17 2017

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.

GMZ100-180930-
Synopsis for Baffin Bay to Rio Grande out 60 nm-
939 PM CST Fri Nov 17 2017

.SYNOPSIS...A slight increase in seas and southerly winds will occur this
evening through Saturday morning due to a tighter pressure
gradient from low pressure developing across the central Plains
and elongated high pressure across the eastern United States
coast. Strong north to northeast winds and building seas will
develop Saturday night through Sunday night in the wake of a
strong cold front. Small Craft Advisories will likely be needed
for this timeframe. Marine conditions will gradually improve early
next week as high pressure builds across the northern Gulf of
Mexico.

$$

GMZ130-132-135-180930-
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-
939 PM CST Fri Nov 17 2017

.REST OF TONIGHT...South winds 10 to 15 knots. A moderate chop on
the bay.
.SATURDAY...South winds 10 to 15 knots becoming southeast 5 to
10 knots in the afternoon. A moderate chop on the bay subsiding
to a light chop in the afternoon.
.SATURDAY NIGHT...North winds 15 to 20 knots. Choppy on the bay.
Chance of rain showers in the evening, then isolated rain showers
after midnight.
.SUNDAY...North winds 15 to 20 knots becoming northeast 10 to
15 knots in the afternoon. Choppy on the bay subsiding to a
moderate chop in the afternoon.
.SUNDAY NIGHT...Northeast winds 10 to 15 knots diminishing to
around 5 knots after midnight. A moderate chop on the bay
subsiding to smooth after midnight.
.MONDAY...East winds 5 to 10 knots. A light chop on the bay.
Chance of rain showers.
.MONDAY NIGHT...South winds 5 to 10 knots. A light chop on the
bay.
.TUESDAY...South winds around 5 knots becoming southeast in the
afternoon. Smooth on the bay increasing to a light chop in the
afternoon. Slight chance of showers.
.TUESDAY NIGHT...East winds 5 to 10 knots shifting north after
midnight. A light chop on the bay. Slight chance of showers.
.WEDNESDAY...North winds 15 to 20 knots. Choppy on the bay.
Chance of showers.
.WEDNESDAY NIGHT...North winds 10 to 15 knots. A moderate chop on
the bay.

$$

GMZ150-155-180930-
Coastal waters from Port Mansfield to the Rio Grande out 20 nm-
Coastal waters from Baffin Bay to Port Mansfield out 20 nm-
939 PM CST Fri Nov 17 2017

...Small craft should exercise caution...

.REST OF TONIGHT...South winds 15 to 20 knots diminishing to
10 to 15 knots after midnight. Seas 3 to 5 feet.
.SATURDAY...South winds 10 to 15 knots. Seas 3 to 5 feet.
.SATURDAY NIGHT...North winds 20 to 25 knots. Seas 5 to 8 feet
with occasional seas up to 9 feet. Chance of showers in the
evening, then isolated showers after midnight.
.SUNDAY...North winds 20 to 25 knots becoming northeast 10 to
15 knots in the afternoon. Seas 5 to 8 feet with occasional seas
up to 9 feet.
.SUNDAY NIGHT...Northeast winds 10 to 15 knots becoming east 5 to
10 knots after midnight. Seas 4 to 6 feet with occasional seas up
to 7 feet.
.MONDAY...East winds 5 to 10 knots. Seas 2 to 4 feet. Chance of
rain showers.
.MONDAY NIGHT...South winds 5 to 10 knots. Seas 2 to 3 feet.
Slight chance of showers.
.TUESDAY...Southeast winds 5 to 10 knots. Seas 2 to 3 feet.
Slight chance of showers.
.TUESDAY NIGHT...East winds 5 to 10 knots becoming north 10 to
15 knots after midnight. Seas 2 feet or less. Slight chance of
showers.
.WEDNESDAY...North winds 15 to 20 knots. Seas 3 to 5 feet. Chance
of showers.
.WEDNESDAY NIGHT...North winds 15 to 20 knots diminishing to
10 to 15 knots after midnight. Seas 5 to 7 feet with occasional
seas up to 8 feet.

$$

GMZ170-175-180930-
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-
939 PM CST Fri Nov 17 2017

...Small craft should exercise caution...

.REST OF TONIGHT...South winds 15 to 20 knots. Seas 3 to 5 feet.
.SATURDAY...South winds 15 to 20 knots diminishing to 10 to
15 knots in the afternoon. Seas 4 to 6 feet with occasional seas
up to 7 feet.
.SATURDAY NIGHT...Northwest winds 20 to 25 knots becoming north
25 to 30 knots after midnight. Seas 6 to 9 feet with occasional
seas up to 10 feet. Chance of showers in the evening, then
isolated showers after midnight.
.SUNDAY...Northeast winds 20 to 25 knots diminishing to 15 to
20 knots in the afternoon. Seas 7 to 10 feet with occasional seas
up to 12 feet.
.SUNDAY NIGHT...Northeast winds 10 to 15 knots becoming east 5 to
10 knots after midnight. Seas 5 to 8 feet with occasional seas up
to 9 feet.
.MONDAY...East winds 5 to 10 knots. Seas 3 to 5 feet. Slight
chance of showers.
.MONDAY NIGHT...Southeast winds 5 to 10 knots. Seas 2 to 4 feet.
Slight chance of showers.
.TUESDAY...South winds 5 to 10 knots. Seas 2 to 3 feet. Slight
chance of showers.
.TUESDAY NIGHT...East winds 5 to 10 knots becoming north 10 to
15 knots after midnight. Seas 2 to 3 feet. Slight chance of
showers.
.WEDNESDAY...North winds 15 to 20 knots increasing to 20 to
25 knots in the afternoon. Seas 5 to 7 feet with occasional seas
up to 8 feet. Slight chance of showers.
.WEDNESDAY NIGHT...North winds 15 to 20 knots. Seas 6 to 9 feet
with occasional seas up to 10 feet.

$$



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