000
FZNT02 KNHC 280355
HSFAT2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
0430 UTC WED SEP 28 2022

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0000 UTC WED SEP 28.
24 HOUR FORECAST VALID 0000 UTC THU SEP 29.
48 HOUR FORECAST VALID 0000 UTC FRI SEP 30.

.WARNINGS.

...ATLC AND GULF OF MEXICO HURRICANE WARNING...
.HURRICANE IAN NEAR 24.9N 82.9W 952 MB AT 0300 UTC SEP 28 MOVING
NNE OR 015 DEG AT 9 KT. MAXIMUM SUSTAINED WINDS 105 KT GUSTS 130
KT. TROPICAL STORM FORCE WINDS WITHIN 120 NM OF CENTER EXCEPT 
100 NM SW QUADRANT. SEAS 12 FT OR GREATER WITHIN 120 NM NE 
QUADRANT...90 NM SE QUADRANT...240 NM SW QUADRANT...AND 180 NM NW
QUADRANT WITH SEAS TO 30 FT. ELSEWHERE...WITHIN 25N79W TO 30N84W
TO 29N92W TO 22N89W TO 20N83W TO 21N80W TO 25N79W...INCLUDING 
STRAITS OF FLORIDA AND IN YUCATAN CHANNEL...WINDS 20 TO 33 KT. 
SEAS 8 TO 12 FT.
.24 HOUR FORECAST HURRICANE IAN INLAND NEAR 27.2N 81.9W. MAXIMUM
SUSTAINED WINDS 110 KT GUSTS 135 KT. TROPICAL STORM FORCE WINDS 
WITHIN 120 NM S SEMICIRCLE...180 NM NE QUADRANT AND 150 NM NW 
QUADRANT. SEAS 12 FT OR GREATER WITHIN 330 NM E SEMICIRCLE AND 
120 NM W SEMICIRCLE WITH SEAS TO 28 FT. ELSEWHERE..WITHIN 31N78W 
TO 30N89W TO 28N94W TO 25N94W TO 24N86W TO 26N78W TO 31N78W WINDS
20 TO 33 KT. SEAS 10 TO 12 FT. REMAINDER OF AREA...WITHIN 24N81W
TO 25N91W TO 28N94W TO 23N97W TO 22N94W TO 21N85W TO 
24N81W...INCLUDING STRAITS OF FLORIDA AND IN YUCATAN CHANNEL... 
WINDS 20 KT OR LESS. SEAS 8 TO 12 FT IN MIXED SWELL.
.36 HOUR FORECAST TROPICAL STORM IAN INLAND NEAR 28.2N 81.4W. 
MAXIMUM SUSTAINED WINDS 60 KT GUSTS 75 KT. TROPICAL STORM FORCE 
WINDS WITHIN 240 NM NE QUADRANT...150 NM NW QUADRANT...AND 120 NM
S SEMICIRCLE. SEAS 12 FT OR GREATER WITHIN 330 NM NE 
QUADRANT...270 NM SE QUADRANT...180 NM SW QUADRANT...AND 150 NM 
NW QUADRANT WITH SEAS TO 20 FT. ELSEWHERE OVER GULF 
WATERS...WITHIN 30N84W TO 30N89W TO 27N97W TO 21N94W TO 20N86W TO
25N81W TO 30N84W...INCLUDING STRAITS OF FLORIDA AND IN YUCATAN 
CHANNEL... WINDS 20 TO 33 KT. SEAS 10 TO 12 FT. REMAINDER OF AREA
OVER ATLANTIC WATERS...WITHIN 31N77W TO 30N78W TO 28N78W TO 
26N80W TO 25N80W TO 26N78W TO 31N77W WINDS 20 TO 33 KT. SEAS 8 TO
12 FT.
.48 HOUR FORECAST TROPICAL STORM IAN OVER WATER NEAR 29.3N 
80.8W. MAXIMUM SUSTAINED WINDS 45 KT GUSTS 55 KT. TROPICAL STORM 
FORCE WINDS WITHIN 120 NM S SEMICIRCLE...310 NM NE QUADRANT AND 
160 NM NW QUADRANT. SEAS 12 FT OR GREATER WITHIN 300 NM NE 
QUADRANT...210 NM SE QUADRANT...270 NM SW QUADRANT...AND 180 NM 
NW QUADRANT WITH SEAS TO 20 FT. ELSEWHERE OVER ATLANTIC WATERS...
WITHIN 31N75W TO 31N77W TO 29N78W TO 28N80W TO 26N80W TO 29N76W 
TO 31N75W WINDS 20 TO 33 KT. SEAS 8 TO 12 FT. REMAINDER OF AREA 
OVER GULF WATERS...WITHIN 30N84W TO 27N97W TO 23N97W TO 21N94W TO
21N86W TO 23N82W TO 30N84W...INCLUDING STRAITS OF FLORIDA AND IN
YUCATAN CHANNEL...WINDS 20 TO 33 KT. SEAS 8 TO 12 FT.
.72 HOUR FORECAST TROPICAL DEPRESSION IAN INLAND NEAR 32.7N
81.2W. MAXIMUM SUSTAINED WINDS 30 KT GUSTS 40 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST POST-TROPICAL IAN NEAR 36.0N 82.5W. MAXIMUM
SUSTAINED WINDS 25 KT GUSTS 35 KT.
.120 HOUR FORECAST...DISSIPATED.

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 LOW PRES NEAR 15N35W 1009 MB. OVER FORECAST WATERS...
WITHIN 17N35W TO 16N36W TO 14N36W TO 13N36W TO 12N36W TO
13N35W TO 17N35W SE WINDS 20 TO 25 KT. SEAS 8 TO 9 FT.
.24 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR
16N38W 1009 MB. OVER FORECAST WATERS...WITHIN 19N35W TO 18N36W 
TO 18N37W TO 17N35W TO 19N35W WINDS 20 TO 25 KT. SEAS 8 TO 9 FT.
.48 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR
19N39W 1009 MB. WITHIN 22N37W TO 22N38W TO 20N38W TO 19N38W TO 
20N36W TO 22N37W WINDS 20 TO 25 KT. SEAS 8 TO 9 FT.

.ATLC WITHIN 31N35W TO 31N38W TO 29N38W TO 26N35W TO 31N35W
WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN E TO SE SWELL.
.24 HOUR FORECAST WITHIN 31N35W TO 31N36W TO 29N36W TO 28N36W TO
28N35W TO 31N35W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN E SWELL.
.39 HOUR FORECAST CONDITIONS IMPROVE.

.GULF OF MEXICO 15 HOUR FORECAST WITHIN 20N96W TO 19N96W TO 
19N95W TO 20N95W TO 20N96W...INCLUDING WITHIN 60 NM OF COAST OF 
VERACRUZ...NW TO N WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT.
.24 HOUR FORECAST LITTLE CHANGE.
.48 HOUR FORECAST WITHIN 20N96W TO 19N96W TO 19N95W TO 20N95W TO
20N96W...INCLUDING WITHIN 60 NM OF COAST OF VERACRUZ...WINDS 20 
KT OR LESS. SEAS 8 TO 9 FT IN NE SWELL.

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

$$
.FORECASTER KONARIK. NATIONAL HURRICANE CENTER.