000
FZNT02 KNHC 241537
HSFAT2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
1630 UTC SAT SEP 24 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1200 UTC SAT SEP 24.
24 HOUR FORECAST VALID 1200 UTC SUN SEP 25.
48 HOUR FORECAST VALID 1200 UTC MON SEP 26.

.WARNINGS.

...CARIBBEAN HURRICANE WARNING...
.TROPICAL STORM IAN NEAR 14.4N 75.2W 1003 MB AT 1500 UTC SEP 24 
MOVING W OR 260 DEG AT 13 KT. MAXIMUM SUSTAINED WINDS 40 KT GUSTS
50 KT. TROPICAL STORM FORCE WINDS WITHIN 0 NM OF CENTER EXCEPT 
50 NM NW QUADRANT. ELSEWHERE WITHIN 15N73W TO 17N73W TO 17N74W TO
15N76W TO 14N75W TO 13N74W TO 15N73W WINDS 20 TO 33 KT. SEAS 8 
TO 10 FT.
.24 HOUR FORECAST TROPICAL STORM IAN NEAR 15.5N 78.9W. MAXIMUM 
SUSTAINED WINDS 55 KT GUSTS 65 KT. TROPICAL STORM FORCE WINDS 
WITHIN 60 NM NE QUADRANT...40 NM SE QUADRANT...20 NM SW 
QUADRANT...AND 50 NM NW QUADRANT. SEAS 12 FT OR GREATER WITHIN 90
NM NE QUADRANT WITH SEAS TO 16 FT. ELSEWHERE WITHIN 17N76W TO 
17N77W TO 17N80W TO 16N80W TO 14N80W TO 15N78W TO 17N76W WINDS 20
TO 33 KT. SEAS 8 TO 12 FT.
.36 HOUR FORECAST HURRICANE IAN NEAR 17.0N 80.7W. MAXIMUM 
SUSTAINED WINDS 70 KT GUSTS 85 KT.
.48 HOUR FORECAST HURRICANE IAN NEAR 18.8N 82.3W. MAXIMUM 
SUSTAINED WINDS 85 KT GUSTS 105 KT. TROPICAL STORM FORCE WINDS 
WITHIN 90 NM NW AND SE QUADRANTS...100 NM NE QUADRANT AND 60 NM 
SW QUADRANT. SEAS 12 FT OR GREATER WITHIN 120 NM E SEMICIRCLE AND
30 NM W SEMICIRCLE WITH SEAS TO 23 FT. ELSEWHERE WITHIN 19N78W 
TO 21N81W TO 19N84W TO 17N83W TO 18N79W TO 19N78W WINDS 20 TO 33 
KT. SEAS 8 TO 12 FT.
.72 HOUR FORECAST HURRICANE IAN NEAR 22.7N 84.1W. MAXIMUM 
SUSTAINED WINDS 100 KT GUSTS 120 KT. 
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE. 
.96 HOUR FORECAST HURRICANE IAN NEAR 26.0N 83.9W. MAXIMUM 
SUSTAINED WINDS 105 KT GUSTS 130 KT. 
.120 HOUR FORECAST HURRICANE IAN NEAR 28.6N 82.9W. MAXIMUM 
SUSTAINED WINDS 95 KT GUSTS 115 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 POST-TROPICAL CYCLONE FIONA...WELL N OF THE AREA...NEAR 
47.9N 61.3W 945 MB AT 1500 UTC SEP 24 MOVING N OR 355 DEG AT 22 
KT. MAXIMUM SUSTAINED WINDS 70 KT GUSTS 85 KT. WITHIN 31N50W TO 
30N80W TO 28N75W TO 29N67W TO 28N62W TO 29N53W TO 31N50W WINDS 20
KT OR LESS. SEAS 8 TO 10 FT IN NW SWELL.
.24 HOUR FORECAST POST-TROPICAL EXTRATROPICAL FIONA NEAR 54.1N 
59.1W. MAXIMUM SUSTAINED WINDS 45 KT GUSTS 55 KT. WITHIN 31N52W 
TO 31N63W TO 29N60W TO 29N56W TO 31N52W WINDS 20 KT OR LESS. SEAS
8 TO 9 FT IN NW TO N SWELL.
.48 HOUR FORECAST POST-TROPICAL EXTRATROPICAL FIONA NEAR 61.0N 
59.0W. MAXIMUM SUSTAINED WINDS 35 KT GUSTS 45 KT. WITHIN 31N40W 
TO 31N52W TO 28N50W TO 28N49W TO 29N42W TO 31N40W WINDS 20 KT OR 
LESS. SEAS 8 FT IN NW TO N SWELL.
.72 HOUR FORECAST POST-TROPICAL EXTRATROPICAL FIONA NEAR 65.3N 
56.4W. MAXIMUM SUSTAINED WINDS 35 KT GUSTS 45 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 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.

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

$$
.FORECASTER AREINHART. NATIONAL HURRICANE CENTER.