000
FZNT02 KNHC 280917
HSFAT2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
1030 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0600 UTC WED SEP 28.
24 HOUR FORECAST VALID 0600 UTC THU SEP 29.
48 HOUR FORECAST VALID 0600 UTC FRI SEP 30.

.WARNINGS.

...GULF OF MEXICO AND ATLANTIC HURRICANE WARNING...
.HURRICANE IAN NEAR 25.6N 82.9W 953 MB AT 0900 UTC SEP 28 MOVING
NNE OR 015 DEG AT 9 KT. MAXIMUM SUSTAINED WINDS 120 KT GUSTS 145
KT. TROPICAL STORM FORCE WINDS WITHIN 120 NM NE QUADRANT...130 
NM SE QUADRANT...100 NM SW QUADRANT...AND 150 NM NW QUADRANT. 
SEAS 12 FT OR GREATER WITHIN 120 NM E SEMICIRCLE...270 NM SW 
QUADRANT AND 210 NM NW QUADRANT WITH SEAS TO 29 FT. 
ELSEWHERE...WITHIN 27N79W TO 30N84W TO 30N89W TO 29N94W TO 24N89W
TO 24N79W TO 27N79W...INCLUDING STRAITS OF FLORIDA...WINDS 20 TO
34 KT. SEAS 10 TO 12 FT. REMAINDER OF AREA...WITHIN 24N89W TO 
27N92W TO 26N92W TO 23N91W TO 21N86W TO 23N84W TO 
24N89W...INCLUDING IN YUCATAN CHANNEL...WINDS 20 KT OR LESS. SEAS
8 TO 11 FT IN MIXED SWELL.
.24 HOUR FORECAST HURRICANE IAN INLAND NEAR 27.7N 81.8W. MAXIMUM
SUSTAINED WINDS 70 KT GUSTS 85 KT. TROPICAL STORM FORCE WINDS 
WITHIN 240 NM NE QUADRANT...130 NM SE QUADRANT...120 NM SW 
QUADRANT...AND 160 NM NW QUADRANT. SEAS 12 FT OR GREATER WITHIN 
270 NM NE QUADRANT...240 NM S SEMICIRCLE...AND 210 NM NW QUADRANT
WITH SEAS TO 24 FT. ELSEWHERE OVER GULF WATERS...WITHIN 26N82W 
TO 30N84W TO 29N94W TO 23N97W TO 20N86W TO 26N82W...INCLUDING 
STRAITS OF FLORIDA AND IN YUCATAN CHANNEL...WINDS 20 TO 33 KT. 
SEAS 10 TO 12 FT. REMAINDER OF AREA IN ATLANTIC WATERS...WITHIN 
30N78W TO 31N79W TO 28N79W TO 26N80W TO 25N80W TO 27N77W TO 
30N78W...INCLUDING ATLANTIC EXPOSURES...WINDS 20 TO 33 KT. SEAS 8
TO 12 FT.
.36 HOUR FORECAST TROPICAL STORM IAN INLAND NEAR 28.7N 81.1W. 
MAXIMUM SUSTAINED WINDS 50 KT GUSTS 60 KT. TROPICAL STORM FORCE 
WINDS WITHIN 240 NM NE QUADRANT...120 NM SE QUADRANT...90 NM SW 
QUADRANT...AND 150 NM NW QUADRANT. SEAS 12 FT OR GREATER WITHIN 
300 NM NE QUADRANT...240 NM SE QUADRANT...210 NM SW 
QUADRANT...AND 90 NM NW QUADRANT WITH SEAS TO 19 FT. ELSEWHERE 
OVER GULF WATERS...WITHIN 26N82W TO 30N84W TO 29N94W TO 23N97W TO
20N86W TO 26N82W...INCLUDING STRAITS OF FLORIDA AND IN YUCATAN 
CHANNEL...WINDS 20 TO 33 KT. SEAS 8 TO 12 FT. REMAINDER OF AREA 
IN ATLANTIC WATERS...WITHIN 30N78W TO 31N79W TO 28N79W TO 26N80W 
TO 25N80W TO 27N77W TO 30N78W...INCLUDING ATLANTIC 
EXPOSURES...WINDS 20 TO 33 KT. SEAS 8 TO 12 FT.
.48 HOUR FORECAST TROPICAL STORM IAN OVER WATER NEAR 29.8N 
80.7W. MAXIMUM SUSTAINED WINDS 45 KT GUSTS 55 KT. TROPICAL STORM 
FORCE WINDS WITHIN 280 NM NE QUADRANT...120 NM SE QUADRANT...90 
NM SW QUADRANT...AND 140 NM NW QUADRANT. SEAS 12 FT OR GREATER 
WITHIN 330 NM NE QUADRANT...240 NM SE QUADRANT...AND 180 NM SW 
QUADRANT WITH SEAS TO 19 FT. ELSEWHERE OVER ATLANTIC WATERS... 
WITHIN 31N74W TO 31N77W TO 29N78W TO 28N80W TO 26N79W TO 27N77W 
TO 31N74W...INCLUDING ATLANTIC EXPOSURES...WINDS 20 TO 33 KT. 
SEAS 8 TO 12 FT. REMAINDER OF AREA OVER GULF WATERS...WITHIN 
29N83W TO 29N91W TO 24N96W TO 21N86W TO 24N83W TO 
29N83W...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 33.6N
81.4W. 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 36.1N 82.1W. 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 1010 MB. OVER FORECAST 
WATERS...WITHIN 17N35W TO 17N36W TO 17N37W TO 15N37W TO 15N36W TO
14N35W TO 17N35W NE WINDS 20 TO 30 KT. SEAS LESS THAN 8 FT.
.24 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR
16N38W 1010 MB. OVER FORECAST WATERS...WITHIN 19N35W TO 19N36W 
TO 18N36W TO 17N36W TO 15N36W TO 15N35W TO 19N35W WINDS 20 TO 30
KT. SEAS LESS THAN 8 FT.
.48 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR
19N39W 1010 MB. WITHIN 21N37W TO 21N38W TO 20N38W TO 19N38W TO 
18N36W TO 19N36W TO 21N37W WINDS 20 TO 25 KT. SEAS 8 TO 9 FT.

.ATLC WITHIN 31N35W TO 31N38W TO 30N39W TO 26N35W TO 31N35W
WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN E SWELL.
.24 HOUR FORECAST WITHIN 31N35W TO 31N36W TO 28N36W TO 28N35W TO
31N35W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN E SWELL.
.33 HOUR FORECAST CONDITIONS IMPROVE.

.GULF OF MEXICO 09 HOUR FORECAST WITHIN 20N95W TO 20N96W TO 
19N96W TO 19N95W TO 20N95W...INCLUDING WITHIN 60 NM OF COAST OF 
VERACRUZ...NW TO N WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT.

.24 HOUR FORECAST WITHIN 20N95W TO 20N96W TO 19N96W TO 19N95W TO
20N95W...INCLUDING WITHIN 60 NM OF COAST OF VERACRUZ...NW TO N 
WINDS 20 TO 25 KT. SEAS 8 TO 9 FT.
.48 HOUR FORECAST WITHIN 20N94W TO 21N95W TO 20N95W TO 20N96W TO
19N95W TO 20N94W...INCLUDING WITHIN 60 NM OF COAST OF 
VERACRUZ...WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN NE SWELL.

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

$$
.FORECASTER KONARIK. NATIONAL HURRICANE CENTER.