Coastal Waters Forecast
Issued by NWS

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FZUS52 KKEY 231416
CWFKEY

COASTAL WATERS FORECAST FOR THE FLORIDA KEYS
NATIONAL WEATHER SERVICE KEY WEST FL
1016 AM EDT THU MAR 23 2017

FLORIDA BAY...HAWK CHANNEL AND STRAITS OF FLORIDA FROM OCEAN REEF TO
SOUTH OF DRY TORTUGAS...AND THE EXTREME SOUTHEASTERN GULF OF
MEXICO...INCLUDING THE FLORIDA KEYS NATIONAL MARINE SANCTUARY.

SEAS ARE GIVEN AS SIGNIFICANT WAVE HEIGHT...WHICH IS THE AVERAGE
HEIGHT OF THE HIGHEST 1/3 OF THE WAVES. INDIVIDUAL WAVES MAY BE
MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.

GMZ005-232030-
SYNOPSIS FOR KEYS COASTAL WATERS FROM OCEAN REEF TO DRY TORTUGAS
1016 AM EDT THU MAR 23 2017

.SYNOPSIS...A TROUGH OF LOW PRESSURE WILL PROGRESS SOUTHWARD DOWN
THE FLORIDA PENINSULA THIS AFTERNOON. THIS TROUGH OF LOW PRESSURE
WILL PASS THROUGH THE FLORIDA KEYS TONIGHT. AN ATLANTIC RIDGE OF
HIGH PRESSURE WILL EXTEND ACROSS THE SOUTHEASTERN UNITED STATES
SATURDAY...BEFORE SLOWLY SHIFTING SOUTHWARD LATE THIS WEEKEND.

THE APPROXIMATE SHOREWARD EDGE OF THE GULF STREAM CURRENT...AS OF
MARCH TWENTY-FIRST...

42 NM SOUTH OF DRY TORTUGAS LIGHT...ON LOGGERHEAD KEY.
26 NM SOUTH OF COSGROVE SHOAL LIGHT...OFF THE MARQUESAS KEYS.
21 NM SOUTH OF SAND KEY LIGHT...OFF KEY WEST.
21 NM SOUTH OF LOOE KEY...OFF BIG PINE KEY.
20 NM SOUTH OF SOMBRERO KEY LIGHT...OFF MARATHON.
12 NM SOUTHEAST OF ALLIGATOR REEF LIGHT...OFF ISLAMORADA.
11 NM SOUTHEAST OF MOLASSES REEF LIGHT...OFF KEY LARGO.
 9 NM EAST OF CARYSFORT REEF LIGHT...OFF OCEAN REEF.

GULF STREAM INFORMATION COURTESY OF THE NAVAL OCEANOGRAPHIC OFFICE.

$$

GMZ031-232030-
FLORIDA BAY INCLUDING BARNES SOUND, BLACKWATER SOUND, AND
BUTTONWOOD SOUND-
1016 AM EDT THU MAR 23 2017

...SMALL CRAFT ADVISORY CONDITIONS ARE EXPECTED TONIGHT...

.THIS AFTERNOON...NORTH WINDS NEAR 10 KNOTS...BECOMING NORTHEAST
AND INCREASING TO NEAR 15 KNOTS. BAY WATERS A LIGHT
CHOP...BECOMING A MODERATE CHOP. ISOLATED SHOWERS AND
THUNDERSTORMS.
.TONIGHT...NORTHEAST TO EAST 15 TO 20 KNOTS...INCREASING TO 20 TO
25 KNOTS BY MIDNIGHT. BAY WATERS CHOPPY...BECOMING VERY ROUGH.
SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS.
.FRIDAY...EAST WINDS 20 TO 25 KNOTS. BAY WATERS VERY ROUGH.
SCATTERED SHOWERS.
.FRIDAY NIGHT...EAST WINDS NEAR 20 KNOTS. BAY WATERS ROUGH.
ISOLATED SHOWERS.
.SATURDAY...EAST WINDS 15 TO 20 KNOTS. BAY WATERS CHOPPY.
ISOLATED SHOWERS.
.SATURDAY NIGHT AND SUNDAY...NORTHEAST TO EAST WINDS NEAR 15
KNOTS. BAY WATERS A MODERATE CHOP. ISOLATED SHOWERS.
.SUNDAY NIGHT THROUGH MONDAY NIGHT...EAST WINDS NEAR 15 KNOTS.
BAY WATERS A MODERATE CHOP.

$$

GMZ032-035-232030-
BAYSIDE AND GULF SIDE FROM CRAIG KEY TO WEST END OF SEVEN MILE
BRIDGE-
GULF OF MEXICO FROM WEST END OF SEVEN MILE BRIDGE TO HALFMOON
SHOAL OUT TO 5 FATHOMS-
1016 AM EDT THU MAR 23 2017

...SMALL CRAFT ADVISORY CONDITIONS ARE EXPECTED TONIGHT...

.THIS AFTERNOON...NORTH WINDS NEAR 10 KNOTS...BECOMING NORTHEAST
AND INCREASING TO NEAR 15 KNOTS. SEAS 1 FOOT OR LESS...BUILDING TO
1 TO 2 FEET. NEARSHORE WATERS A LIGHT CHOP...BECOMING A MODERATE
CHOP. ISOLATED SHOWERS AND THUNDERSTORMS.
.TONIGHT...NORTHEAST TO EAST 15 TO 20 KNOTS...INCREASING TO 20 TO
25 KNOTS BY MIDNIGHT. SEAS AROUND 2 FEET...BUILDING TO 2 TO 4
FEET. NEARSHORE WATERS CHOPPY...BECOMING VERY ROUGH. SCATTERED
SHOWERS AND ISOLATED THUNDERSTORMS.
.FRIDAY...EAST WINDS 20 TO 25 KNOTS. SEAS 3 TO 4 FEET. NEARSHORE
WATERS VERY ROUGH. SCATTERED SHOWERS.
.FRIDAY NIGHT...EAST WINDS NEAR 20 KNOTS. SEAS 2 TO 4 FEET.
NEARSHORE WATERS ROUGH. ISOLATED SHOWERS.
.SATURDAY...EAST WINDS 15 TO 20 KNOTS. SEAS 2 TO 3 FEET. NEARSHORE
WATERS WATERS CHOPPY. ISOLATED SHOWERS.
.SATURDAY NIGHT...NORTHEAST TO EAST WINDS NEAR 15 KNOTS. SEAS
AROUND 2 FEET. NEARSHORE WATERS A MODERATE CHOP. ISOLATED SHOWERS.
.SUNDAY...NORTHEAST TO EAST WINDS NEAR 15 KNOTS. SEAS 1 TO 2 FEET.
NEARSHORE WATERS A MODERATE CHOP. ISOLATED SHOWERS.
.SUNDAY NIGHT THROUGH MONDAY NIGHT...EAST WINDS NEAR 15 KNOTS.
SEAS 1 TO 2 FEET. NEARSHORE WATERS A MODERATE CHOP.

$$

GMZ042-043-232030-
HAWK CHANNEL FROM OCEAN REEF TO CRAIG KEY OUT TO THE REEF-
HAWK CHANNEL FROM CRAIG KEY TO WEST END OF SEVEN MILE BRIDGE OUT
TO THE REEF-
1016 AM EDT THU MAR 23 2017

...SMALL CRAFT ADVISORY CONDITIONS ARE EXPECTED TONIGHT...

.THIS AFTERNOON...NORTH WINDS 10 TO 15 KNOTS...BECOMING NORTHEAST
AND INCREASING TO NEAR 15 KNOTS. SEAS 1 TO 2 FEET...BUILDING TO 2
TO 3 FEET. NEARSHORE WATERS A LIGHT TO MODERATE CHOP. ISOLATED
SHOWERS AND THUNDERSTORMS.
.TONIGHT...NORTHEAST TO EAST 15 TO 20 KNOTS...INCREASING TO 20 TO
25 KNOTS BY MIDNIGHT. SEAS 2 TO 4 FEET...BUILDING TO 3 TO 5 FEET.
NEARSHORE WATERS CHOPPY...BECOMING VERY ROUGH. SCATTERED SHOWERS
AND ISOLATED THUNDERSTORMS.
.FRIDAY...EAST WINDS 20 TO 25 KNOTS. SEAS 4 TO 5 FEET. NEARSHORE
WATERS VERY ROUGH. SCATTERED SHOWERS.
.FRIDAY NIGHT...EAST WINDS 20 TO 20 KNOTS. SEAS 4 TO 6 FEET.
NEARSHORE WATERS VERY ROUGH. ISOLATED SHOWERS.
.SATURDAY...EAST WINDS NEAR 20 KNOTS. SEAS 3 TO 5 FEET. NEARSHORE
WATERS ROUGH. ISOLATED SHOWERS.
.SATURDAY NIGHT AND SUNDAY...NORTHEAST TO EAST WINDS 15 TO 20
KNOTS. SEAS 2 TO 4 FEET. NEARSHORE WATERS CHOPPY. ISOLATED
SHOWERS.
.SUNDAY NIGHT THROUGH MONDAY NIGHT...EAST WINDS NEAR 15 KNOTS.
SEAS 2 TO 3 FEET. NEARSHORE WATERS A MODERATE CHOP.

$$

GMZ044-232030-
HAWK CHANNEL FROM WEST END OF SEVEN MILE BRIDGE TO HALFMOON SHOAL
OUT TO THE REEF-
1016 AM EDT THU MAR 23 2017

...SMALL CRAFT ADVISORY CONDITIONS ARE EXPECTED TONIGHT...

.THIS AFTERNOON...NORTH WINDS 10 TO 15 KNOTS...BECOMING NORTHEAST
AND INCREASING TO NEAR 15 KNOTS. SEAS 1 TO 2 FEET...BUILDING TO 2
TO 3 FEET. NEARSHORE WATERS A LIGHT TO MODERATE CHOP.
.TONIGHT...NORTHEAST TO EAST 15 TO 20 KNOTS...INCREASING TO 20 TO
25 KNOTS BY MIDNIGHT. SEAS 2 TO 4 FEET...BUILDING TO 3 TO 5 FEET.
NEARSHORE WATERS CHOPPY...BECOMING VERY ROUGH. SCATTERED SHOWERS
AND ISOLATED THUNDERSTORMS.
.FRIDAY...EAST WINDS 20 TO 25 KNOTS. SEAS 4 TO 5 FEET. NEARSHORE
WATERS VERY ROUGH. SCATTERED SHOWERS.
.FRIDAY NIGHT...EAST WINDS 20 TO 20 KNOTS. SEAS 4 TO 6 FEET.
NEARSHORE WATERS VERY ROUGH. ISOLATED SHOWERS.
.SATURDAY...EAST WINDS NEAR 20 KNOTS. SEAS 3 TO 5 FEET. NEARSHORE
WATERS ROUGH. ISOLATED SHOWERS.
.SATURDAY NIGHT AND SUNDAY...NORTHEAST TO EAST WINDS 15 TO 20
KNOTS. SEAS 2 TO 4 FEET. NEARSHORE WATERS CHOPPY. ISOLATED
SHOWERS.
.SUNDAY NIGHT THROUGH MONDAY NIGHT...EAST WINDS NEAR 15 KNOTS.
SEAS 2 TO 3 FEET. NEARSHORE WATERS A MODERATE CHOP.

$$

GMZ052-053-072-073-232030-
STRAITS OF FLORIDA FROM OCEAN REEF TO CRAIG KEY OUT 20 NM-
STRAITS OF FLORIDA FROM CRAIG KEY TO WEST END OF SEVEN MILE
BRIDGE OUT 20 NM-
STRAITS OF FLORIDA FROM OCEAN REEF TO CRAIG KEY 20 TO 60 NM OUT-
STRAITS OF FLORIDA FROM CRAIG KEY TO WEST END OF SEVEN MILE
BRIDGE 20 TO 60 NM OUT-
1016 AM EDT THU MAR 23 2017

...SMALL CRAFT ADVISORY CONDITIONS ARE EXPECTED TONIGHT...

.THIS AFTERNOON...NORTH WINDS 10 TO 15 KNOTS...BECOMING NORTHEAST
AND INCREASING TO NEAR 15 KNOTS. SEAS 2 TO 4 FEET...BUILDING TO 3
TO 5 FEET. ISOLATED SHOWERS AND THUNDERSTORMS.
.TONIGHT...NORTHEAST TO EAST 15 TO 20 KNOTS...INCREASING TO 20 TO
25 KNOTS BY MIDNIGHT. SEAS 4 TO 6 FEET...BUILDING TO 7 TO 10 FEET.
SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS.
.FRIDAY...EAST WINDS 20 TO 25 KNOTS. SEAS 7 TO 10 FEET. SCATTERED
SHOWERS.
.FRIDAY NIGHT...EAST WINDS 20 TO 20 KNOTS. SEAS 7 TO 10 FEET.
ISOLATED SHOWERS.
.SATURDAY...EAST WINDS 20 TO 25 KNOTS...DECREASING TO NEAR 20
KNOTS BY NOON. SEAS 7 TO 10 FEET...SUBSIDING TO 6 TO 8 FEET.
ISOLATED SHOWERS.
.SATURDAY NIGHT...NORTHEAST TO EAST WINDS NEAR 20 KNOTS. SEAS 5 TO
7 FEET. ISOLATED SHOWERS.
.SUNDAY...NORTHEAST TO EAST WINDS 15 TO 20 KNOTS. SEAS 4 TO 6
FEET. ISOLATED SHOWERS.
.SUNDAY NIGHT THROUGH MONDAY NIGHT...EAST WINDS 15 TO 20 KNOTS.
SEAS 4 TO 6 FEET.

$$

GMZ054-055-074-075-232030-
STRAITS OF FLORIDA FROM WEST END OF SEVEN MILE BRIDGE TO SOUTH OF
HALFMOON SHOAL OUT 20 NM-
STRAITS OF FLORIDA FROM HALFMOON SHOAL TO 20 NM WEST OF DRY
TORTUGAS OUT 20 NM-
STRAITS OF FLORIDA FROM WEST END OF SEVEN MILE BRIDGE TO SOUTH OF
HALFMOON SHOAL 20 TO 60 NM OUT-
STRAITS OF FLORIDA FROM HALFMOON SHOAL TO 20 NM WEST OF DRY
TORTUGAS 20 TO 60 NM OUT-
1016 AM EDT THU MAR 23 2017

...SMALL CRAFT ADVISORY CONDITIONS ARE EXPECTED TONIGHT...

.THIS AFTERNOON...NORTH WINDS 10 TO 15 KNOTS...BECOMING NORTHEAST
AND INCREASING TO NEAR 15 KNOTS. SEAS 2 TO 4 FEET...BUILDING TO 3
TO 5 FEET.
.TONIGHT...NORTHEAST TO EAST 15 TO 20 KNOTS...INCREASING TO 20 TO
25 KNOTS BY MIDNIGHT. SEAS 4 TO 6 FEET...BUILDING TO 7 TO 10 FEET.
SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS.
.FRIDAY...EAST WINDS 20 TO 25 KNOTS. SEAS 7 TO 10 FEET. SCATTERED
SHOWERS.
.FRIDAY NIGHT...EAST WINDS 20 TO 20 KNOTS. SEAS 7 TO 10 FEET.
ISOLATED SHOWERS.
.SATURDAY...EAST WINDS 20 TO 25 KNOTS...DECREASING TO NEAR 20
KNOTS BY NOON. SEAS 7 TO 10 FEET...SUBSIDING TO 6 TO 8 FEET.
ISOLATED SHOWERS.
.SATURDAY NIGHT...NORTHEAST TO EAST WINDS NEAR 20 KNOTS. SEAS 5 TO
7 FEET. ISOLATED SHOWERS.
.SUNDAY...NORTHEAST TO EAST WINDS 15 TO 20 KNOTS. SEAS 4 TO 6
FEET. ISOLATED SHOWERS.
.SUNDAY NIGHT THROUGH MONDAY NIGHT...EAST WINDS 15 TO 20 KNOTS.
SEAS 4 TO 6 FEET.

$$

GMZ033-034-232030-
GULF WATERS FROM EAST CAPE SABLE TO CHOKOLOSKEE 20 TO 60 NM OUT
AND BEYOND 5 FATHOMS-
GULF OF MEXICO INCLUDING DRY TORTUGAS AND REBECCA SHOAL CHANNEL-
1016 AM EDT THU MAR 23 2017

...SMALL CRAFT ADVISORY CONDITIONS ARE EXPECTED TONIGHT...

.THIS AFTERNOON...NORTH WINDS 10 TO 15 KNOTS...BECOMING NORTHEAST
AND INCREASING TO NEAR 15 KNOTS. SEAS 2 TO 4 FEET.
.TONIGHT...NORTHEAST TO EAST 15 TO 20 KNOTS...INCREASING TO 20 TO
25 KNOTS BY MIDNIGHT. SEAS 3 TO 5 FEET...BUILDING TO 5 TO 7 FEET.
SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS.
.FRIDAY...EAST WINDS 20 TO 25 KNOTS. SEAS 5 TO 7 FEET. SCATTERED
SHOWERS.
.FRIDAY NIGHT...EAST WINDS 20 TO 20 KNOTS. SEAS 5 TO 7 FEET.
ISOLATED SHOWERS.
.SATURDAY...EAST WINDS NEAR 20 KNOTS. SEAS 4 TO 6 FEET. ISOLATED
SHOWERS.
.SATURDAY NIGHT AND SUNDAY...NORTHEAST TO EAST WINDS 15 TO 20
KNOTS. SEAS 3 TO 5 FEET. ISOLATED SHOWERS.
.SUNDAY NIGHT THROUGH MONDAY NIGHT...EAST WINDS NEAR 15 KNOTS.
SEAS 2 TO 4 FEET.

$$
BS



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