557 
FZNT02 KNHC 030931
HSFAT2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL 
1030 UTC MON SEP 03 2018

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS

SEAS 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.

SECURITE

ATLANTIC FROM 07N TO 31N W OF 35W INCLUDING CARIBBEAN SEA AND
GULF OF MEXICO

SYNOPSIS VALID 0600 UTC MON SEP 03.
24 HOUR FORECAST VALID 0600 UTC TUE SEP 04.
48 HOUR FORECAST VALID 0600 UTC WED SEP 05.

.WARNINGS.

...TROPICAL STORM WARNING...
.TROPICAL STORM FLORENCE NEAR 18.0N 37.5W 999 MB AT 0900 UTC SEP 
03 MOVING WNW OR 285 DEG AT 14 KT. MAXIMUM SUSTAINED WINDS 50 KT 
GUSTS 60 KT. TROPICAL STORM FORCE WINDS WITHIN 40 NM NW AND SE 
QUADRANTS...50 NM NE QUADRANT AND 20 NM SW QUADRANT.  SEAS 12 FT 
OR GREATER WITHIN 120 NM N SEMICIRCLE...90 NM SE QUADRANT AND 60 
NM SW QUADRANT WITH SEAS TO 18 FT. ELSEWHERE WITHIN 420 NM N AND 
270 NM S SEMICIRCLE WINDS 20 TO 33 KT. SEAS 8 TO 12 FT IN MIXED 
SWELL.
.24 HOUR FORECAST TROPICAL STORM FLORENCE NEAR 18.7N 42.0W.
MAXIMUM SUSTAINED WINDS 50 KT GUSTS 60 KT. TROPICAL STORM FORCE 
WINDS WITHIN 50 NM NW AND SE QUADRANTS...60 NM NE QUADRANT AND 
30 NM SW QUADRANT. SEAS 12 FT OR GREATER WITHIN 150 NM NW AND 90 
NM SE SEMICIRCLES WITH SEAS TO 18 FT. ELSEWHERE WITHIN 420 NM N 
AND 240 NM S SEMICIRCLES WINDS 20 TO 33 KT. SEAS 8 TO 12 FT IN 
MIXED SWELL.
.48 HOUR FORECAST TROPICAL STORM FLORENCE NEAR 20.0N 46.5W.
MAXIMUM SUSTAINED WINDS 45 KT GUSTS 55 KT. TROPICAL STORM FORCE 
WINDS WITHIN 50 NM NW AND SE QUADRANTS...80 NM NE QUADRANT AND 
30 NM SW QUADRANT. SEAS 12 FT OR GREATER WITHIN 240 NM N AND 120 
NM S SEMICIRCLES WITH SEAS TO 18 FT. ELSEWHERE WITHIN 420 NM N 
AND 240 NM S SEMICIRCLES WINDS 20 TO 33 KT. SEAS 8 TO 12 FT IN 
MIXED SWELL.
.72 HOUR FORECAST TROPICAL STORM FLORENCE NEAR 22.2N 51.1W.
MAXIMUM SUSTAINED WINDS 40 KT GUSTS 50 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST TROPICAL STORM FLORENCE NEAR 24.5N 54.5W.
MAXIMUM SUSTAINED WINDS 45 KT GUSTS 55 KT.
.120 HOUR FORECAST TROPICAL STORM FLORENCE NEAR 26.0N 57.0W.
MAXIMUM SUSTAINED WINDS 55 KT GUSTS 65 KT.

...TROPICAL STORM WARNING...
.POTENTIAL TROPICAL CYCLONE SEVEN NEAR 24.5N 80.2W 1011 MB AT 
0900 UTC SEP 03 MOVING WNW OR 300 DEG AT 14 KT. MAXIMUM 
SUSTAINED WINDS 25 KT GUSTS 35 KT. WITHIN 90 NM NE SEMICIRCLE 
WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT. 
.24 HOUR FORECAST TROPICAL STORM SEVEN NEAR 27.2N 84.8W. MAXIMUM 
SUSTAINED WINDS 35 KT GUSTS 45 KT. TROPICAL STORM FORCE WINDS 
WITHIN 40 NM OF CENTER EXCEPT 0 NM SW QUADRANT. WITHIN 90 NM SE 
AND 45 NM NW SEMICIRCLES WINDS 20 TO 33 KT. SEAS 8 TO 10 FT. 
.48 HOUR FORECAST TROPICAL STORM SEVEN NEAR 30.4N 89.7W. MAXIMUM 
SUSTAINED WINDS 50 KT GUSTS 60 KT. TROPICAL STORM FORCE WINDS 
WITHIN 40 NM N SEMICIRCLE...50 NM SE QUADRANT AND 20 NM SW 
QUADRANT. SEAS 12 FT OR GREATER WITHIN 90 NM SE QUADRANT WITH 
SEAS TO 15 FT. ELSEWHERE N OF 28N BETWEEN 85W AND 90W WINDS 20 
TO 33 KT. SEAS 8 TO 12 FT IN MIXED SWELL IN OPEN WATERS.
.72 HOUR FORECAST TROPICAL DEPRESSION SEVEN INLAND NEAR 33.0N 
92.7W. MAXIMUM SUSTAINED WINDS 30 KT GUSTS 40 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST TROPICAL DEPRESSION SEVEN INLAND NEAR 34.0N 
95.0W. MAXIMUM SUSTAINED WINDS 25 KT GUSTS 35 KT.
.120 HOUR FORECAST POST-TROPICAL REMNANT LOW SEVEN NEAR 35.5N 
96.0W. MAXIMUM SUSTAINED WINDS 20 KT GUSTS 30 KT.

FORECAST WINDS IN AND NEAR ACTIVE TROPICAL CYCLONES SHOULD BE 
USED WITH CAUTION DUE TO UNCERTAINTY IN FORECAST TRACK...SIZE 
AND INTENSITY.

.SYNOPSIS AND FORECAST.

.CARIBBEAN FROM 11N TO 14N BETWEEN 74W AND 78W NE TO E WINDS 20 
TO 25 KT. SEAS 8 TO 10 FT.
.12 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.
.24 HOUR FORECAST LITTLE CHANGE.
.48 HOUR FORECAST LITTLE CHANGE.

.REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT. 

CONVECTION VALID AT 0915 UTC MON SEP 3...

ATLC T.S. FLORENCE NEAR 18.0N 37.5W. WITHIN 90 NM OF CENTER 
NUMEROUS MODERATE TO STRONG.

ATLC POTENTIAL T.S. SEVEN NEAR 23.4N 78.7W. WITHIN 90 NM NE 
SEMICIRCLE SCATTERED MODERATE. 

ATLC WITHIN FROM 25N TO 28N BETWEEN 50W AND 56W SCATTERED 
MODERATE. 

ATLC WITHIN 240 NM E OF TROUGH FROM 21N62W TO 17N64W SCATTERED 
MODERATE.

$$
.FORECASTER CHRISTENSEN. NATIONAL HURRICANE CENTER.