Coastal Waters Forecast
Issued by NWS Brownsville, TX

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905
FZUS54 KBRO 211707 AAA
CWFBRO

COASTAL WATERS FORECAST...UPDATED
NATIONAL WEATHER SERVICE BROWNSVILLE TX
1107 AM CST SAT JAN 21 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

GMZ100-212130-
SYNOPSIS FOR BAFFIN BAY TO RIO GRANDE OUT 60 NM-
1107 AM CST SAT JAN 21 2017

.SYNOPSIS...AREAS OF DENSE SEA FOG WILL REDEVELOP THIS EVENING IN
ADVANCE OF STRONG COLD FRONT. MARINE CONDITIONS WILL DETERIORATE
AFTER MIDNIGHT AS THE FRONT SURGES THROUGH THE COASTAL WATERS.
HAZARDOUS WINDS AND SEAS WILL CONTINUE THROUGH SUNDAY...IMPROVING
SUNDAY NIGHT AND MONDAY AS HIGH PRESSURE BUILDS INTO THE WESTERN
GULF. SOUTH WINDS WILL RETURN MONDAY NIGHT...BECOMING STRONG
TUESDAY IN ADVANCE OF A WEDNESDAY COLD FRONT.

$$

GMZ130-132-135-212130-
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-
1107 AM CST SAT JAN 21 2017

...GALE WARNING IN EFFECT FROM LATE TONIGHT THROUGH SUNDAY
AFTERNOON...

.REST OF TODAY...WEST WINDS AROUND 7 KNOTS SHIFTING SOUTHEAST
7 TO 9 KNOTS LATE IN THE AFTERNOON. A LIGHT CHOP ON THE BAY.
.TONIGHT...SOUTHEAST WINDS 7 TO 10 KNOTS SHIFTING SOUTH LATE IN
THE EVENING, THEN BECOMING WEST 12 TO 17 KNOTS AFTER MIDNIGHT
BECOMING NORTHWEST 17 TO 22 KNOTS EARLY IN THE MORNING. A LIGHT
CHOP ON THE BAY INCREASING TO A MODERATE CHOP AFTER MIDNIGHT,
THEN INCREASING TO ROUGH EARLY IN THE MORNING.
.SUNDAY...NORTHWEST WINDS 18 TO 23 KNOTS INCREASING TO 23 TO
28 KNOTS WITH GUSTS TO AROUND 39 KNOTS IN THE LATE MORNING AND
EARLY AFTERNOON, THEN DIMINISHING TO 20 TO 25 KNOTS LATE IN THE
AFTERNOON. ROUGH ON THE BAY INCREASING TO VERY ROUGH IN THE LATE
MORNING AND EARLY AFTERNOON, THEN SUBSIDING TO ROUGH LATE IN THE
AFTERNOON.
.SUNDAY NIGHT...NORTHWEST WINDS 15 TO 20 KNOTS DIMINISHING TO
8 TO 13 KNOTS. CHOPPY ON THE BAY SUBSIDING TO A MODERATE CHOP.
.MONDAY...NORTHWEST WINDS 7 TO 10 KNOTS IN THE MORNING BECOMING
LIGHT, THEN BECOMING SOUTHEAST 7 TO 9 KNOTS LATE IN THE
AFTERNOON. A LIGHT CHOP ON THE BAY SUBSIDING TO SMOOTH EARLY IN
THE AFTERNOON, THEN INCREASING TO A LIGHT CHOP LATE IN THE
AFTERNOON.
.MONDAY NIGHT...SOUTHEAST WINDS 9 TO 14 KNOTS SHIFTING SOUTH
12 TO 16 KNOTS AFTER MIDNIGHT. A MODERATE CHOP ON THE BAY.
.TUESDAY...SOUTH WINDS 16 TO 21 KNOTS. CHOPPY ON THE BAY.
.TUESDAY NIGHT...SOUTHEAST WINDS 15 TO 20 KNOTS. CHOPPY ON THE
BAY.
.WEDNESDAY...NORTH WINDS 8 TO 13 KNOTS. A MODERATE CHOP ON THE
BAY.
.WEDNESDAY NIGHT...NORTH WINDS 15 TO 20 KNOTS. CHOPPY ON THE BAY.

$$

GMZ150-155-212130-
COASTAL WATERS FROM PORT MANSFIELD TO THE RIO GRANDE OUT 20 NM-
COASTAL WATERS FROM BAFFIN BAY TO PORT MANSFIELD OUT 20 NM-
1107 AM CST SAT JAN 21 2017

...GALE WARNING IN EFFECT FROM LATE TONIGHT THROUGH SUNDAY
AFTERNOON...

.REST OF TODAY...SOUTHWEST WINDS 7 TO 9 KNOTS SHIFTING SOUTHEAST
LATE IN THE AFTERNOON. SEAS 2 TO 3 FEET.
.TONIGHT...SOUTH WINDS 7 TO 12 KNOTS BECOMING WEST 15 TO 20 KNOTS
AFTER MIDNIGHT, THEN BECOMING NORTHWEST 22 TO 27 KNOTS WITH GUSTS
TO AROUND 39 KNOTS EARLY IN THE MORNING. SEAS 2 TO 3 FEET
BUILDING TO 4 TO 6 FEET WITH OCCASIONAL SEAS UP TO 8 FEET AFTER
MIDNIGHT.
.SUNDAY...NORTHWEST WINDS 26 TO 31 KNOTS DIMINISHING TO 23 TO
28 KNOTS LATE IN THE AFTERNOON. GUSTS UP TO 43 KNOTS UNTIL LATE
AFTERNOON. SEAS 7 TO 10 FEET WITH OCCASIONAL SEAS UP TO 13 FEET.
.SUNDAY NIGHT...NORTHWEST WINDS 19 TO 24 KNOTS DIMINISHING TO
12 TO 17 KNOTS. SEAS 5 TO 8 FEET WITH OCCASIONAL SEAS UP TO
10 FEET SUBSIDING TO 4 TO 6 FEET WITH OCCASIONAL SEAS UP TO
8 FEET AFTER MIDNIGHT.
.MONDAY...NORTH WINDS 9 TO 14 KNOTS BECOMING NORTHWEST 7 TO
10 KNOTS LATE IN THE MORNING, THEN BECOMING LIGHT EARLY IN THE
AFTERNOON BECOMING SOUTH 7 TO 9 KNOTS LATE IN THE AFTERNOON. SEAS
2 TO 3 FEET.
.MONDAY NIGHT...SOUTHEAST WINDS 8 TO 13 KNOTS BECOMING SOUTH
15 TO 18 KNOTS. SEAS 2 TO 3 FEET.
.TUESDAY...SOUTH WINDS 17 TO 22 KNOTS. SEAS 5 TO 7 FEET WITH
OCCASIONAL SEAS UP TO 9 FEET.
.TUESDAY NIGHT...SOUTHEAST WINDS 16 TO 21 KNOTS. SEAS 4 TO 6 FEET
WITH OCCASIONAL SEAS UP TO 8 FEET.
.WEDNESDAY...NORTH WINDS 10 TO 15 KNOTS. SEAS 3 TO 5 FEET WITH
OCCASIONAL SEAS UP TO 6 FEET.
.WEDNESDAY NIGHT...NORTH WINDS 18 TO 23 KNOTS. SEAS 3 TO 5 FEET
WITH OCCASIONAL SEAS UP TO 6 FEET.

$$

GMZ170-175-212130-
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-
1107 AM CST SAT JAN 21 2017

...GALE WARNING IN EFFECT FROM LATE TONIGHT THROUGH SUNDAY
AFTERNOON...

.REST OF TODAY...SOUTHWEST WINDS 7 TO 12 KNOTS SHIFTING SOUTH
7 TO 8 KNOTS LATE IN THE AFTERNOON. SEAS 1 TO 3 FEET.
.TONIGHT...SOUTH WINDS 8 TO 12 KNOTS BECOMING WEST 17 TO 22 KNOTS
AFTER MIDNIGHT, THEN BECOMING NORTHWEST 28 TO 33 KNOTS WITH GUSTS
TO AROUND 44 KNOTS EARLY IN THE MORNING. SEAS 2 TO 4 FEET WITH
OCCASIONAL SEAS UP TO 5 FEET BUILDING TO 5 TO 7 FEET WITH
OCCASIONAL SEAS UP TO 10 FEET AFTER MIDNIGHT.
.SUNDAY...NORTHWEST WINDS 28 TO 37 KNOTS WITH GUSTS TO AROUND
49 KNOTS DIMINISHING TO 27 TO 32 KNOTS WITH GUSTS TO AROUND
43 KNOTS. SEAS 9 TO 13 FEET WITH OCCASIONAL SEAS UP TO 17 FEET.
.SUNDAY NIGHT...NORTHWEST WINDS 24 TO 29 KNOTS BECOMING NORTH
15 TO 20 KNOTS. SEAS 8 TO 12 FEET WITH OCCASIONAL SEAS UP TO
15 FEET SUBSIDING TO 6 TO 9 FEET WITH OCCASIONAL SEAS UP TO
11 FEET AFTER MIDNIGHT.
.MONDAY...NORTH WINDS 12 TO 17 KNOTS DIMINISHING TO 8 TO 13 KNOTS
LATE IN THE MORNING, THEN BECOMING NORTHWEST 7 TO 8 KNOTS EARLY
IN THE AFTERNOON SHIFTING SOUTHWEST AROUND 7 KNOTS LATE IN THE
AFTERNOON. SEAS 3 TO 5 FEET WITH OCCASIONAL SEAS UP TO 6 FEET
SUBSIDING TO 2 TO 3 FEET IN THE AFTERNOON.
.MONDAY NIGHT...SOUTH WINDS 7 TO 11 KNOTS INCREASING TO 14 TO
19 KNOTS. SEAS 2 TO 3 FEET.
.TUESDAY...SOUTH WINDS 19 TO 22 KNOTS. SEAS 5 TO 7 FEET WITH
OCCASIONAL SEAS UP TO 9 FEET.
.TUESDAY NIGHT...SOUTH WINDS 17 TO 22 KNOTS. SEAS 5 TO 7 FEET
WITH OCCASIONAL SEAS UP TO 9 FEET.
.WEDNESDAY...WEST WINDS 8 TO 13 KNOTS. SEAS 4 TO 6 FEET WITH
OCCASIONAL SEAS UP TO 8 FEET.
.WEDNESDAY NIGHT...NORTH WINDS 19 TO 24 KNOTS. SEAS 3 TO 5 FEET
WITH OCCASIONAL SEAS UP TO 6 FEET. SLIGHT CHANCE OF SHOWERS.

$$



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