562 
FZNT02 KNHC 020850
HSFAT2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL 
1030 UTC SUN SEP 02 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 SUN SEP 02.
24 HOUR FORECAST VALID 0600 UTC MON SEP 03.
48 HOUR FORECAST VALID 0600 UTC TUE SEP 04.

.WARNINGS.

...TROPICAL STORM WARNING...
.TROPICAL STORM FLORENCE NEAR 16.5N 31.4W 999 MB AT 0900 UTC SEP 
02 MOVING WNW OR 290 DEG AT 13 KT. MAXIMUM SUSTAINED WINDS 50 KT 
GUSTS 60 KT. TROPICAL STORM FORCE WINDS WITHIN 40 NM OF CENTER 
EXCEPT 20 NM SW QUADRANT.  SEAS 12 FT OR GREATER WITHIN 150 NM 
NE QUADRANT...60 NM SE QUADRANT...45 NM SW QUADRANT...AND 90 NM 
NW QUADRANT WITH SEAS TO 18 FT. OVER FORECAST WATERS FROM 15N TO 
24N E OF 40W WINDS 20 KT OR LESS. SEAS TO 9 FT IN NE AND E SWELL.
.24 HOUR FORECAST TROPICAL STORM FLORENCE NEAR 17.5N 36.3W.
MAXIMUM SUSTAINED WINDS 55 KT GUSTS 65 KT. TROPICAL STORM FORCE 
WINDS WITHIN 60 NM N SEMICIRCLE AND 40 NM S SEMICIRCLE. SEAS 12 
FT OR GREATER WITHIN 210 NM N AND 90 NM S SEMICIRCLE WITH SEAS 
TO 22 FT. ELSEWHERE OVER FORECAST WATERS W OF 35W WITHIN 480 NM 
N AND 210 NM S SEMCIRCLE WINDS 20 TO 33 KT. SEAS 8 TO 12 FT IN 
MIXED SWELL.
.48 HOUR FORECAST TROPICAL STORM FLORENCE NEAR 18.5N 41.4W.
MAXIMUM SUSTAINED WINDS 55 KT GUSTS 65 KT. TROPICAL STORM FORCE 
WINDS WITHIN 70 NM N SEMICIRCLE AND 50 NM S SEMICIRCLE. SEAS 12 
FT OR GREATER 270 NM N AND 120 NM S SEMICIRCLE WITH SEAS TO 24 
FT. ELSEWHERE WITHIN 600 NM N AND 240 NM S SEMICIRCLE WINDS 20 
TO 33 KT. SEAS 8 TO 12 FT IN MIXED SWELL. 
.72 HOUR FORECAST TROPICAL STORM FLORENCE NEAR 20.1N 45.5W.
MAXIMUM SUSTAINED WINDS 55 KT GUSTS 65 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST TROPICAL STORM FLORENCE NEAR 20.1N 45.5W.
MAXIMUM SUSTAINED WINDS 50 KT GUSTS 60 KT.
.120 HOUR FORECAST TROPICAL STORM FLORENCE NEAR 20.1N 45.5W.
MAXIMUM SUSTAINED WINDS 45 KT GUSTS 55 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.

.ATLC TROUGH OVER CENTRAL BAHAMAS FROM 27N76W TO 22N77W. WITHIN 
120 NM E OF TROUGH SE WINDS 20 TO 25 KT. SEAS 4 TO 6 FT IN OPEN 
WATERS. 
.12 HOUR FORECAST TROUGH W OF AREA. WINDS 20 KT OR LESS. SEAS 
LESS THAN 8 FT.

.CARIBBEAN S OF 14N BETWEEN 70W AND 75W NE WINDS 20 TO 30 KT. 
SEAS TO 8 FT. 
.12 HOUR FORECAST FROM 11N TO 13N BETWEEN 73W AND 76W WINDS 20 
KT OR LESS. SEAS TO 8 FT IN E SWELL.  
.24 HOUR FORECAST FROM 11N TO 14N BETWEEN 73W AND 77W NE WINDS 
20 TO 25 KT. SEAS 8 FT.
.36 HOUR FORECAST FROM 11N TO 13N BETWEEN 73W AND 76W WINDS 20 
KT OR LESS. SEAS TO 8 FT IN E SWELL.  
.48 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.GULF 36 HOUR FORECAST TROUGH FROM 26N82W TO 23N83W. FROM 26N TO 
27N E OF 83W E WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT.
.48 HOUR FORECAST TROUGH FROM 29N85W TO 24N87W. FROM 26N TO 29N 
E OF 87W E TO SE WINDS 20 TO 30 KT. SEAS TO 8 FT.

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

CONVECTION VALID AT 0830 UTC SUN SEP 2...

ATLC FROM 26N TO 28N W OF 77W SCATTERED MODERATE.

CARIBBEAN N OF 20N BETWEEN 76W AND 85W SCATTERED MODERATE TO 
ISOLATED STRONG.

$$
.FORECASTER CHRISTENSEN. NATIONAL HURRICANE CENTER.