000
FZNT02 KNHC 132148
HSFAT2

HIGH SEAS FORECAST 
NWS NATIONAL HURRICANE CENTER MIAMI FL 
2230 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1800 UTC TUE SEP 13.
24 HOUR FORECAST VALID 1800 UTC WED SEP 14.
48 HOUR FORECAST VALID 1800 UTC THU SEP 15.

.WARNINGS.

...ATLC TROPICAL STORM WARNING...
.TROPICAL STORM IAN NEAR 27.0N 52.7W 1005 MB AT 2100 UTC SEP 13
MOVING NNW OR 346 DEG AT 14 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...120 NM SW QUADRANT...AND 180 NM NW QUADRANT
WITH SEAS TO 20 FT. ELSEWHERE WITHIN 270 NM E AND 210 W
SEMICIRCLES WINDS 20 TO 33 KT. SEAS 8 TO 11 FT. REMAINDER OF
AREA N OF 22N BETWEEN 46W AND 58W WINDS 20 KT OR LESS. SEAS 8 TO
11 FT IN MIXED SWELL.
.24 HOUR FORECAST TROPICAL STORM IAN N OF AREA NEAR 31.8N 53.6W.
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 240 NM NE AND 120
SW SEMICIRCLES WITH SEAS TO 22 FT. OVER FORECAST WATERS N OF 27N
BETWEEN 48W AND 51W S TO SW WINDS 20 TO 30 KT. SEAS 10 TO 13 FT.
ELSEWHERE N OF A LINE FROM 31N46W TO 25N51W TO 31N59W WINDS 20
KT OR LESS. SEAS 8 TO 11 FT IN MIXED SWELL. 
.48 HOUR FORECAST TROPICAL STORM IAN NEAR 37.5N 50.5W. 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 N OF AREA. 
.72 HOUR FORECAST POST-TROPICAL EXTRATROPICAL IAN NEAR 48.5N
37.0W. 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 58.0N
22.0W. MAXIMUM SUSTAINED WINDS 50 KT GUSTS 60 KT.
.120 HOUR FORECAST POST-TROPICAL EXTRATROPICAL IAN NEAR 64.5N
8.0W. 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.

...GALE WARNING...
.LOW PRES INLAND NEAR 29N81W 1011 MB. WITHIN 120 NM E SEMICIRCLE
OF LOW CENTER SE TO S WINDS 20 TO 30 KT WITH FREQUENT GUSTS TO
GALE FORCE. SEAS 8 TO 10 FT. NUMEROUS TSTMS WITHIN 120 NM E
SEMICIRCLE OF LOW.
.12 HOUR FORECAST LOW PRES INLAND NEAR 30N82W 1012 MB. N OF 29N
W OF 80W SE TO S WINDS 20 TO 30 KT. SEAS 8 TO 11 FT.
.18 HOUR FORECAST LOW PRES INLAND NEAR 31N82W 1012 MB. WINDS 20
KT OR LESS. SEAS LESS THAN 8 FT. 

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

$$
.FORECASTER GR. NATIONAL HURRICANE CENTER.