000
FZNT02 KNHC 130940
HSFAT2

HIGH SEAS FORECAST 
NWS NATIONAL HURRICANE CENTER MIAMI FL 
1030 UTC TUE SEP 13 2016

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 TUE SEP 13.
24 HOUR FORECAST VALID 0600 UTC WED SEP 14.
48 HOUR FORECAST VALID 0600 UTC THU SEP 15.

.WARNINGS.

...ATLC TROPICAL STORM WARNING...
.TROPICAL STORM IAN NEAR 24.0N 51.7W 1005 MB AT 0900 UTC SEP 13
MOVING NNW OR 335 DEG AT 8 KT. MAXIMUM SUSTAINED WINDS 40 KT
GUSTS 50 KT. TROPICAL STORM FORCE WINDS WITHIN 200 NM NE
QUADRANT...140 NM SE QUADRANT...0 NM SW QUADRANT...AND 120 NM NW
QUADRANT. SEAS 12 FT OR GREATER WITHIN 240 NM NE QUADRANT...210
NM SE QUADRANT...150 NM SW QUADRANT...AND 180 NM NW QUADRANT
WITH SEAS TO 21 FT. ELSEWHERE WITHIN 300 NM SE AND 210 NM NW
SEMICIRCLES WINDS 20 TO 33 KT. SEAS 8 TO 11 FT. REMAINDER OF
AREA FROM 18N TO 29N BETWEEN 46W AND 59W WINDS 20 KT OR LESS.
SEAS 8 TO 11 FT IN MIXED SWELL.
.24 HOUR FORECAST TROPICAL STORM IAN NEAR 27.8N 53.4W. MAXIMUM
SUSTAINED WINDS 40 KT GUSTS 50 KT. TROPICAL STORM FORCE WINDS
WITHIN 120 NM NW AND SE QUADRANTS...180 NM NE QUADRANT AND 0 NM
SW QUADRANT. SEAS 12 FT OR GREATER WITHIN 210 NM E SEMICIRCLE...
120 NM SW QUADRANT...AND 180 NM NW QUADRANT WITH SEAS TO 22 FT.
ELSEWHERE WITHIN 300 NM NE QUADRANT...240 NM NM SE QUADRANT
...150 NM SW QUADRANT AND 210 NM NW QUADRANT WIND 20 TO 33 KT.
SEAS 8 TO 11 FT. REMAINDER OF AREA N OF 23N BETWEEN 46W AND 60W
WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN MIXED SWELL.
.48 HOUR FORECAST TROPICAL STORM IAN N OF AREA NEAR 33.2N 53.1W.
MAXIMUM SUSTAINED WINDS 50 KT GUSTS 60 KT. TROPICAL STORM FORCE
WINDS WITHIN 100 NM NW AND SE QUADRANTS...150 NM NE QUADRANT AND
50 NM SW QUADRANT. SEAS 12 FT OR GREATER WITHIN 240 NM NE
QUADRANT...180 NM SE QUADRANT...120 NM SW QUADRANT AND 180 NM NW
QUADRANT WITH SEAS TO 22 FT. ELSEWHERE WITHIN 300 NM NE QUADRANT
...240 NM SE QUADRANT...AND 180 NM SW QUADRANT AND 210 NM NW
QUADRANT WINDS 20 TO 33 KT. SEAS 8 TO 11 FT. REMAINDER OF
FORECAST WATERS N OF 28N BETWEEN 47W AND 58W WINDS 20 KT OR
LESS. SEAS 8 TO 10 FT IN MIXED SWELL. 
.72 HOUR FORECAST TROPICAL STORM IAN NEAR 40.7N 46.1W. MAXIMUM
SUSTAINED WINDS 50 KT GUSTS 60 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST POST-TROPICAL EXTRATROPICAL IAN NEAR 50.7N
32.0W. MAXIMUM SUSTAINED WINDS 50 KT GUSTS 60 KT.
.120 HOUR FORECAST POST-TROPICAL EXTRATROPICAL IAN NEAR 58.5N
18.5W. 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.

.LOW PRES NEAR 27N80W 1012 MB MOVING NW 10 KT. WITHIN 120 NM NE
QUADRANT SE WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT. NUMEROUS
TSTMS WITHIN 120 NM E SEMICIRCLE OF LOW.
.12 HOUR FORECAST LOW PRES TO MOVE WELL INLAND. FROM 28N TO 31N
W OF 80W SE WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT. 
.18 HOUR FORECAST N OF 29N W OF 80W SE WINDS 20 TO 25 KT. SEAS
LESS THAN 8 FT.
.24 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT. 

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

$$
.FORECASTER AGUIRRE. NATIONAL HURRICANE CENTER.