720 
FZNT02 KNHC 082127
HSFAT2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL 
2230 UTC SAT SEP 08 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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.

PAN PAN

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

SYNOPSIS VALID 1800 UTC SAT SEP 08.
24 HOUR FORECAST VALID 1800 UTC SUN SEP 09.
48 HOUR FORECAST VALID 1800 UTC MON SEP 10.

.WARNINGS.

.TROPICAL STORM FLORENCE NEAR 24.6N 54.7W 989 MB AT 2100 UTC SEP 
08 MOVING W OR 270 DEG AT 4 KT. MAXIMUM SUSTAINED WINDS 60 KT 
GUSTS 75 KT. TROPICAL STORM FORCE WINDS WITHIN 110 NM N 
SEMICIRCLE...40 NM SE AND 30 NM SW QUADRANTS. SEAS 12 FT OR 
GREATER WITHIN 150 NM NE...90 NM SE...120 NM SW AND 180 NM NW 
QUADRANTS WITH SEAS TO 24 FT. ELSEWHERE WITHIN 240 NM N AND 120 
NM S SEMICIRCLES WINDS 20 TO 33 KT. SEAS 9 TO 15 FT. REMAINDER 
WATERS WITHIN 360 NM N AND 240 NM S SEMICIRCLES OF CENTER WINDS 
20 KT OR LESS. SEAS TO 11 FT PRIMARILY IN MIXED SWELL.
SCATTERED TSTMS IN BANDS WITHIN 180 NM NE AND 150 NM SW 
SEMICIRCLES OF CENTER. 
.12 HOUR FORECAST HURRICANE FLORENCE NEAR 24.6N 55.4W. MAXIMUM 
SUSTAINED WINDS 65 KT GUSTS 80 KT. TROPICAL STORM FORCE WINDS 
WITHIN 110 NM NE...60 NM SE...30 NM SW AND 100 NM NW QUADRANTS.
WINDS 20 TO 33 KT AND SEAS 12 FT OR GREATER WITHIN 90 NM E AND 
150 NM W SEMICIRCLES WITH SEAS TO 30 FT. REMAINDER WATERS WITHIN 
360 NM N AND 270 NM S SEMICIRCLES OF CENTER WINDS 20 KT OR LESS. 
SEAS TO 11 FT PRIMARILY IN MIXED SWELL. SCATTERED TSTMS IN BANDS 
WITHIN 180 NM NE AND 150 NM SW SEMICIRCLES OF CENTER. 
.24 HOUR FORECAST HURRICANE FLORENCE NEAR 24.7N 56.6W. MAXIMUM 
SUSTAINED WINDS 80 KT GUSTS 100 KT. TROPICAL STORM FORCE WINDS 
WITHIN 110 NM NE...60 NM SE...40 NM SW AND 90 NM NW QUADRANTS. 
WINDS 20 TO 33 KT AND SEAS 12 FT OR GREATER WITHIN 180 NM N AND 
120 NM S SEMICIRCLES WITH SEAS TO 34 FT. REMAINDER WATERS WITHIN 
360 NM N AND 240 NM S SEMICIRCLES OF CENTER WINDS 20 KT OR LESS. 
SEAS TO 11 FT PRIMARILY IN MIXED SWELL. SCATTERED TSTMS IN BANDS 
WITHIN 180 NM OF CENTER. 
.48 HOUR FORECAST HURRICANE FLORENCE NEAR 25.4N 60.5W. MAXIMUM 
SUSTAINED WINDS 110 KT GUSTS 135 KT. TROPICAL STORM FORCE WINDS 
WITHIN 120 NM NE...90 NM SE...60 NM...AND 100 NM NW QUADRANTS. 
WINDS 20 TO 33 KT AND SEAS 12 FT OR GREATER WITHIN 240 NM N AND 
150 NM S SEMICIRCLES WITH SEAS TO 36 FT. REMAINDER FORECAST 
WATERS WITHIN 360 NM N AND 240 NM S SEMICIRCLES OF CENTER WINDS 
20 KT OR LESS. SEAS TO 11 FT PRIMARILY IN MIXED SWELL. SCATTERED 
TSTMS IN BANDS WITHIN 180 NM OF CENTER. 
.72 HOUR FORECAST HURRICANE FLORENCE NEAR 26.9N 66.4W. MAXIMUM 
SUSTAINED WINDS 120 KT GUSTS 145 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST HURRICANE FLORENCE NEAR 26.9N 66.4W. MAXIMUM 
SUSTAINED WINDS 125 KT GUSTS 150 KT.
.120 HOUR FORECAST HURRICANE FLORENCE NEAR 26.9N 66.4W. MAXIMUM 
SUSTAINED WINDS 120 KT GUSTS 145 KT.

...HURRICANE WARNING...
.TROPICAL STORM ISAAC NEAR 14.5N 36.6W 1005 MB AT 2100 UTC SEP 
08 MOVING W OR 275 DEG AT 6 KT. MAXIMUM SUSTAINED WINDS 35 KT 
GUSTS 45 KT. TROPICAL STORM FORCE WINDS WITHIN 50 NM OVER THE NW 
QUADRANT. SEAS 12 FT OR GREATER WITHIN 30 NM NW QUADRANT WITH 
SEAS TO 12 FT. ELSEWHERE WITHIN 75 NM OF CENTER WINDS 20 TO 33 
KT. SEAS 8 TO 11 FT. NUMEROUS TSTMS WITHIN 45 NM E AND 120 NM W 
SEMICIRCLES OF CENTER.
.24 HOUR FORECAST TROPICAL STORM ISAAC NEAR 14.7N 39.5W. MAXIMUM 
SUSTAINED WINDS 50 KT GUSTS 60 KT. TROPICAL STORM FORCE WINDS 
WITHIN 50 NM N AND 30 NM S SEMICIRCLES. SEAS 12 FT OR GREATER 
WITHIN 45 NM OF CENTER WITH SEAS TO 16 FT. ELSEWHERE WITHIN 180 
NM OF CENTER WINDS 20 KT OR LESS. SEAS TO 10 FT PRIMARILY IN 
MIXED SWELL. SCATTERED TSTMS IN BANDS WITHIN 210 NM OF CENTER.  
.48 HOUR FORECAST HURRICANE ISAAC NEAR 14.7N 44.6W. MAXIMUM 
SUSTAINED WINDS 65 KT GUSTS 80 KT. TROPICAL STORM FORCE WINDS 
WITHIN 60 NM N SEMICIRCLE...40 NM SE AND 30 NM SW QUADRANTS. 
WINDS 20 TO 33 KT AND SEAS 12 FT OR GREATER WITHIN 210 NM AND 
180 NM S SEMICIRCLES OF CENTER WITH SEAS TO 22 FT. ELSEWHERE 
WITHIN 420 NM N AND 240 NM S SEMICIRCLES OF CENTER WINDS 20 KT 
OR LESS. SEAS TO 10 FT PRIMARILY IN MIXED SWELL. SCATTERED TSTMS 
IN BANDS WITHIN 210 NM OF CENTER.   
.72 HOUR FORECAST HURRICANE ISAAC NEAR 14.5N 50.0W. MAXIMUM 
SUSTAINED WINDS 75 KT GUSTS 90 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST HURRICANE ISAAC NEAR 14.5N 50.0W. MAXIMUM 
SUSTAINED WINDS 75 KT GUSTS 90 KT.
.120 HOUR FORECAST HURRICANE ISAAC NEAR 14.5N 50.0W. MAXIMUM 
SUSTAINED WINDS 70 KT GUSTS 85 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 42 HOUR FORECAST FROM 16N TO 25N E OF 38W...IN 
ASSOCIATION WITH TROPICAL CYCLONE HELENE E OF AREA...NE WINDS 20 
TO 25 KT. SEAS TO 10 FT.
.48 HOUR FORECAST WITHIN AREA BOUNDED BY A LINE FROM 25N35W TO 
14N35W TO 17N40W TO 23N40W TO 25N35W...IN ASSOCIATION WITH 
TROPICAL CYCLONE HELENE E OF AREA...NE WINDS 20 TO 30 KT. SEAS 8 
TO 13 FT.
 
.REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

$$
.FORECASTER NELSON. NATIONAL HURRICANE CENTER.