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National Weather Service Marine Forecast FZUS52 KMFL

FZUS52 KMFL 210130
CWFMFL

Coastal Waters Forecast for South Florida
National Weather Service Miami FL
930 PM EDT Fri Apr 20 2018

Atlantic coastal waters from Jupiter Inlet to Ocean Reef out to 60
nm and Gulf coastal waters from East Cape Sable to Chokoloskee out
20 nm and Chokoloskee to Bonita Beach out 60 nm...including the
waters of Biscayne Bay and Lake Okeechobee.

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.

AMZ600-GMZ606-211415-
Synopsis for Jupiter Inlet to Ocean Reef FL out to 60 nm and for East
Cape Sable to Bonita Beach FL out to 60 nm-
930 PM EDT Fri Apr 20 2018

SYNOPSIS
A cold front will push southward down the Florida
Peninsula and stall over the Lake Okeechobee region later tonight.
Marine conditions will begin to deteriorate starting late tonight
as wind speeds pick up, particularly over the Atlantic waters,
where a Small Craft Advisory has been hoisted. Showers and
thunderstorms will bring locally higher winds and waves late this
weekend into early next week. Conditions will gradually improve
early to mid next week.

GULF STREAM HAZARDS
Deteriorating conditions over the weekend
with 7 to 8 foot seas expected.

The approximate location of the west wall of the Gulf Stream as of
Apr 19, 2018 at 1200 UTC...

  7 nautical miles east northeast of Fowey Rocks.
  9 nautical miles east northeast of Port Everglades.
  7 nautical miles east northeast of Lake Worth.
  7 nautical miles east of Jupiter Inlet.

This data courtesy of the Naval Oceanographic Office.



AMZ650-670-211415-
Coastal waters from Jupiter Inlet to Deerfield Beach FL out
20 NM-
Waters from Jupiter Inlet to Deerfield Beach FL from 20 to 60 NM-
930 PM EDT Fri Apr 20 2018

...SMALL CRAFT ADVISORY IN EFFECT FROM SATURDAY MORNING THROUGH
LATE SATURDAY NIGHT...

REST OF TONIGHT
East winds 5 to 10 knots along the coast to
east 10 to 15 knots in the Gulf Stream. Seas around 2 feet
building to 2 to 4 feet with occasional seas to 5 feet after
midnight. Period 3 seconds increasing to 9 seconds after
midnight. Intracoastal waters a moderate chop. A slight chance
of showers after midnight.

SATURDAY
East winds 10 to 15 knots along the coast to east
15 to 20 knots in the Gulf Stream. Seas 3 to 5 feet with
occasional seas to 6 feet along the coast and 5 to 7 feet with
occasional to 9 feet in the Gulf Stream. Period 8 seconds.
Intracoastal waters choppy in exposed areas. A chance of showers
. A slight chance of thunderstorms in the
afternoon.

SATURDAY NIGHT
East winds 10 to 15 knots along the coast to
east 15 to 20 knots in the Gulf Stream. Seas 5 to 7 feet with
occasional seas to 9 feet. Period 8 seconds. Intracoastal waters
choppy in exposed areas. A chance of showers and a slight chance
of thunderstorms.

SUNDAY
East southeast winds 10 to 15 knots along the coast to
east 15 to 20 knots in the Gulf Stream. Seas 4 to 6 feet with
occasional seas to 8 feet. Period 7 seconds. Intracoastal waters
choppy in exposed areas. A chance of showers and a slight chance
of thunderstorms.

SUNDAY NIGHT
Southeast winds 10 to 15 knots along the coast
to east southeast 15 to 20 knots in the Gulf Stream. Seas 3 to
5 feet with occasional seas to 6 feet. Intracoastal waters
choppy in exposed areas. Showers likely and a slight chance of
thunderstorms.

MONDAY
Southeast winds around 15 knots. Seas 2 to 4 feet with
occasional seas to 5 feet. Intracoastal waters a moderate chop.
Showers likely and a chance of thunderstorms.

MONDAY NIGHT
South winds 5 to 10 knots along the coast to
south 10 to 15 knots in the Gulf Stream. Seas 2 to 3 feet.
Intracoastal waters a light chop. Showers likely and a chance of
thunderstorms.

TUESDAY
South southwest winds 5 to 10 knots along the coast
to south southwest 10 to 15 knots in the Gulf Stream. Seas 2 to
3 feet. Intracoastal waters a light chop. Showers likely and a
slight chance of thunderstorms.

TUESDAY NIGHT
West winds 5 to 10 knots along the coast to
west 10 to 15 knots in the Gulf Stream. Seas 2 to 3 feet.
Intracoastal waters a light chop. A chance of showers.

WEDNESDAY
West southwest winds 5 to 10 knots along the coast
to west southwest 10 to 15 knots in the Gulf Stream. Seas 2 to
3 feet. Intracoastal waters a light chop. A slight chance of
showers.



AMZ651-671-211415-
Coastal waters from Deerfield Beach to Ocean Reef FL out 20 NM-
Waters from Deerfield Beach to Ocean Reef FL from 20 to 60 NM
excluding the territorial waters of Bahamas-
930 PM EDT Fri Apr 20 2018

...SMALL CRAFT ADVISORY IN EFFECT FROM SATURDAY AFTERNOON
THROUGH LATE SATURDAY NIGHT...

REST OF TONIGHT
East winds 5 to 10 knots along the coast to
east 10 to 15 knots in the Gulf Stream. Seas around 2 feet.
Period 3 seconds. Intracoastal waters a light chop. A slight
chance of showers after midnight.

SATURDAY
East winds 10 to 15 knots. Along the coast, seas
2 to 4 feet with occasional seas to 5 feet. In the Gulf Stream,
seas 2 to 4 feet with occasional seas to 5 feet building to 4 to
6 feet with occasional seas to 8 feet in the afternoon. Period
9 seconds. Intracoastal waters a moderate chop. A slight chance
of showers in the morning...then a chance of showers in the
afternoon.

SATURDAY NIGHT
East winds 10 to 15 knots along the coast to
east 15 to 20 knots in the Gulf Stream. Seas 4 to 6 feet with
occasional seas to 8 feet. Period 8 seconds. Intracoastal waters
choppy in exposed areas. A chance of showers through the night.
A slight chance of thunderstorms after midnight.

SUNDAY
East winds 10 to 15 knots. Seas 3 to 5 feet with
occasional seas to 6 feet. Period 8 seconds. Intracoastal waters
a moderate chop. A chance of showers and a slight chance of
thunderstorms.

SUNDAY NIGHT
Southeast winds 10 to 15 knots along the coast
to east southeast 15 to 20 knots in the Gulf Stream. Seas 2 to
4 feet with occasional seas to 5 feet. Intracoastal waters
choppy in exposed areas. Showers likely and a slight chance of
thunderstorms.

MONDAY
Southeast winds 10 to 15 knots. Seas 2 to 3 feet.
Intracoastal waters a moderate chop. Showers likely and a chance
of thunderstorms.

MONDAY NIGHT
South southeast winds 10 to 15 knots. Seas 2 to
3 feet. Intracoastal waters a light chop. Showers likely and a
chance of thunderstorms.

TUESDAY
South southwest winds 5 to 10 knots along the coast
to south southwest 10 to 15 knots in the Gulf Stream. Seas
around 2 feet. Intracoastal waters a light chop. Showers likely
and a slight chance of thunderstorms.

TUESDAY NIGHT AND WEDNESDAY
West winds 5 to 10 knots along
the coast to west southwest 10 to 15 knots in the Gulf Stream.
Seas 2 to 3 feet. Intracoastal waters a light chop. A chance of
showers.



AMZ630-211415-
Biscayne Bay-
930 PM EDT Fri Apr 20 2018

REST OF TONIGHT
East winds 5 to 10 knots. Bay waters a light
chop.

SATURDAY
East winds 5 to 10 knots. Bay waters a light chop. A
slight chance of showers in the afternoon.

SATURDAY NIGHT
East winds 10 to 15 knots. Bay waters a
moderate chop. A chance of showers through the night. A slight
chance of thunderstorms after midnight.

SUNDAY
East southeast winds 10 to 15 knots. Bay waters a
moderate chop. A slight chance of thunderstorms in the morning.
A chance of showers.

SUNDAY NIGHT
Southeast winds 10 to 15 knots. Bay waters a
moderate chop. Showers likely in the evening...then a chance of
showers and a slight chance of thunderstorms after midnight.

MONDAY
South southeast winds 5 to 10 knots. Bay waters a light
chop. Showers likely and a chance of thunderstorms.

MONDAY NIGHT
South winds 5 to 10 knots. Bay waters a light
chop. A chance of showers and a slight chance of thunderstorms.

TUESDAY
South southwest winds 5 to 10 knots. Bay waters a light
chop. A chance of showers and a slight chance of thunderstorms.

TUESDAY NIGHT
West winds 5 to 10 knots. Bay waters a light
chop. A chance of showers.

WEDNESDAY
West winds 5 knots becoming west southwest in the
afternoon. Bay waters a light chop. A slight chance of showers.



GMZ656-657-211415-
Coastal waters from Chokoloskee to Bonita Beach FL out 20 NM-
Coastal waters from East Cape Sable to Chokoloskee FL out 20 NM-
930 PM EDT Fri Apr 20 2018

REST OF TONIGHT
North northwest winds 5 to 10 knots becoming
east northeast after midnight. Seas around 2 feet. Period
3 seconds. Bay and inland waters a light chop.

SATURDAY
East southeast winds 5 to 10 knots becoming south in
the afternoon. Seas less than 2 feet. Period 3 seconds. Bay and
inland waters a light chop. A chance of showers in the afternoon.

SATURDAY NIGHT
East winds 5 to 10 knots. Seas less than
2 feet. Period 2 seconds. Bay and inland waters a light chop. A
chance of showers in the evening.

SUNDAY
Southeast winds 5 to 10 knots. Seas less than 2 feet.
Period 2 seconds. Bay and inland waters a light chop. A chance of
showers.

SUNDAY NIGHT
Southeast winds 5 to 10 knots. Seas around
2 feet. Bay and inland waters a light chop. A chance of showers.

MONDAY
South winds 5 to 10 knots. Seas less than 2 feet. Bay
and inland waters a light chop. A chance of showers and a slight
chance of thunderstorms.

MONDAY NIGHT
South southwest winds 5 knots. Seas less than
2 feet. Bay and inland waters smooth. A chance of showers and a
slight chance of thunderstorms.

TUESDAY
West southwest winds 5 to 10 knots. Seas less than
2 feet. Bay and inland waters a light chop. A chance of showers
and a slight chance of thunderstorms.

TUESDAY NIGHT AND WEDNESDAY
West winds 5 to 10 knots. Seas
2 to 3 feet. Bay and inland waters a light chop. A slight chance
of showers.



GMZ676-211415-
Waters from Chokoloskee to Bonita Beach FL from 20 to 60 NM-
930 PM EDT Fri Apr 20 2018

REST OF TONIGHT
North northwest winds 5 to 10 knots becoming
northeast after midnight. Seas around 2 feet. Period 3 seconds.

SATURDAY
Southeast winds 5 to 10 knots. Seas around 2 feet.
Period 4 seconds.

SATURDAY NIGHT
East winds 5 to 10 knots. Seas around 2 feet.
Period 4 seconds.

SUNDAY
Southeast winds 5 to 10 knots. Seas around 2 feet.
Period 3 seconds. A slight chance of showers in the afternoon.

SUNDAY NIGHT
Southeast winds 5 to 10 knots. Seas around
2 feet. A chance of showers.

MONDAY
South winds 5 to 10 knots. Seas around 2 feet. A
chance of showers and a slight chance of thunderstorms.

MONDAY NIGHT
South southwest winds around 5 knots. Seas less
than 2 feet. A slight chance of showers and thunderstorms.

TUESDAY
West southwest winds 5 to 10 knots. Seas around
2 feet. A chance of showers and a slight chance of
thunderstorms.

TUESDAY NIGHT
West northwest winds around 10 knots. Seas 2 to
3 feet. A slight chance of showers.

WEDNESDAY
West northwest winds 5 to 10 knots. Seas 2 to
3 feet.



AMZ610-211415-
Lake Okeechobee-
930 PM EDT Fri Apr 20 2018

REST OF TONIGHT
East winds 5 to 10 knots. Lake waters a light
chop.

SATURDAY
East winds 10 to 15 knots. Lake waters a moderate
chop. A slight chance of showers in the morning...then a chance
of showers in the afternoon.

SATURDAY NIGHT
East winds 10 to 15 knots. Lake waters a
moderate chop. A slight chance of thunderstorms in the evening.
A chance of showers through the night.

SUNDAY
East winds 5 to 10 knots. Lake waters a light chop. A
chance of showers in the morning...then showers likely and a
chance of thunderstorms in the afternoon.

SUNDAY NIGHT
Southeast winds 10 to 15 knots. Lake waters a
moderate chop. A chance of showers.

MONDAY
South southeast winds 5 to 10 knots. Lake waters a light
chop. Showers likely and a chance of thunderstorms.

MONDAY NIGHT
South southwest winds 5 to 10 knots. Lake waters
light chop. A chance of showers and a slight chance of
thunderstorms.

TUESDAY
West southwest winds 5 to 10 knots. Lake waters a light
chop. A chance of showers and a slight chance of thunderstorms.

TUESDAY NIGHT AND WEDNESDAY
West winds 5 to 10 knots. Lake
waters a light chop.