000
FZNT02 KNHC 201520
HSFAT2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
1630 UTC TUE SEP 20 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 TUE SEP 20.
24 HOUR FORECAST VALID 1200 UTC WED SEP 21.
48 HOUR FORECAST VALID 1200 UTC THU SEP 22.

.WARNINGS.

...ATLC HURRICANE WARNING...
.HURRICANE FIONA NEAR 22.0N 71.4W 961 MB AT 1500 UTC SEP 20 
MOVING NNW OR 330 DEG AT 8 KT. MAXIMUM SUSTAINED WINDS 100 KT 
GUSTS 120 KT. TROPICAL STORM FORCE WINDS WITHIN 130 NM E 
SEMICIRCLE...60 NM SW QUADRANT AND 100 NM NW QUADRANT.SEAS 12 
FT OR GREATER WITHIN 180 NM NE QUADRANT...120 NM SE QUADRANT... 
90 NM SW QUADRANT...AND 150 NM NW QUADRANT WITH SEAS TO 34 FT.
ELSEWHERE OVER FORECAST WATERS WITHIN 180 NM OF CENTER...EXCEPT 
240 NE QUADRANT WINDS 20 TO 33 KT. SEAS 10 TO 17 FT. REMAINDER 
OF AREA FROM 20N TO 25N BETWEEN 67W AND 74W WINDS 20 KT OR LESS. 
SEAS 8 TO 10 FT IN MIXED SWELL.
.24 HOUR FORECAST HURRICANE FIONA NEAR 24.4N 71.8W. MAXIMUM 
SUSTAINED WINDS 110 KT GUSTS 135 KT. TROPICAL STORM FORCE WINDS 
WITHIN 140 NM E SEMICIRCLE...80 NM SW QUADRANT AND 110 NM NW 
QUADRANT. SEAS 12 FT OR GREATER WITHIN 210 NM NE QUADRANT...150 
NM SE QUADRANT...120 NM SW QUADRANT AND 180 NM QUADRANT WITH 
SEAS TO 38 FT. ELSEWHERE WITHIN 240 NM OF CENTER...EXCEPT 180 NM 
SW QUADRANT WINDS 20 TO 33 KT. SEAS 10 TO 18 FT. REMAINDER OF 
AREA FROM 21N TO 29N BETWEEN 66W AND THE BAHAMAS WINDS 20 KT OR 
LESS. SEAS 8 TO 11 FT IN MIXED SWELL. 
.48 HOUR FORECAST HURRICANE FIONA NEAR 28.3N 70.2W. MAXIMUM 
SUSTAINED WINDS 120 KT GUSTS 145 KT. TROPICAL STORM FORCE WINDS 
WITHIN 160 NM E SEMICIRCLE...110 NM SW QUADRANT AND 130 NM NW 
QUADRANT. SEAS 12 FT OR GREATER WITHIN 240 NM OF CENTER...EXCEPT 
270 NM NW QUADRANT WITH SEAS TO 42 FT. ELSEWHERE WITHIN 270 NM 
OF CENTER...EXCEPT 300 NM NW QUADRANT SEAS 11 TO 19 FT. 
REMAINDER OF AREA OVER FORECAST WATERS N OF 21N BETWEEN 64W AND 
80W AND E OF THE BAHAMAS WINDS 20 KT OR LESS. SEAS 8 TO 11 FT IN 
MIXED SWELL.  
.72 HOUR FORECAST HURRICANE FIONA NEAR 34.7N 65.2W. MAXIMUM 
SUSTAINED WINDS 110 KT GUSTS 135 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST HURRICANE FIONA NEAR 45.0N 60.0W. MAXIMUM 
SUSTAINED WINDS 85 KT GUSTS 105 KT.
.120 HOUR FORECAST POST-TROPICAL EXTRATROPICAL FIONA NEAR 52.0N 
59.0W. MAXIMUM SUSTAINED WINDS 55 KT GUSTS 65 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.

.FROM 10N TO 14N BETWEEN 52W AND 56W NE TO E WINDS 20 TO 30 KT. 
SEAS 8 TO 9 FT.  
.24 HOUR FORECAST LOW PRES NEAR 10N58W 1008 MB. WITHIN 90 NM NE 
SEMICIRCLE WINDS 20 TO 30 KT. SEAS 8 TO 9 FT.
.48 HOUR FORECAST LOW PRES NEAR 11N62W 1007 MB. WITHIN 120 NM NE 
AND 60 NM SW SEMICIRCLES WINDS 20 TO 30 KT. SEAS 8 TO 11 FT.

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

$$
.FORECASTER GR. NATIONAL HURRICANE CENTER.