000
FZNT02 KNHC 221536
HSFAT2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
1630 UTC THU SEP 22 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 THU SEP 22.
24 HOUR FORECAST VALID 1200 UTC FRI SEP 23.
48 HOUR FORECAST VALID 1200 UTC SAT SEP 24.

.WARNINGS.

...HURRICANE WARNING...
.HURRICANE FIONA NEAR 28.6N 70.2W 936 MB AT 1500 UTC SEP 22 
MOVING NNE OR 025 DEG AT 13 KT. MAXIMUM SUSTAINED WINDS 115 KT 
GUSTS 140 KT. TROPICAL STORM FORCE WINDS WITHIN 150 NM N 
SEMICIRCLE...180 NM SE QUADRANT AND 130 NM SW QUADRANT. SEAS 12 
FT OR GREATER WITHIN 240 NM N SEMICIRCLE AND 270 NM S SEMICIRCLE 
WITH SEAS TO 50 FT. ELSEWHERE OVER FORECAST WATERS WITHIN 240 NM 
OF CENTER...EXCEPT 360 NM SE QUADRANT WINDS 20 TO 33 KT. SEAS 8 
TO 12 FT IN MIXED SWELL N OF 21N BETWEEN 64W AND 80W AND E OF 
THE BAHAMAS.
.24 HOUR FORECAST HURRICANE FIONA N OF AREA NEAR 34.6N 65.2W. 
MAXIMUM SUSTAINED WINDS 110 KT GUSTS 135 KT. TROPICAL STORM 
FORCE WINDS WITHIN 210 NM OF CENTER EXCEPT 240 NM SE QUADRANT. 
OVER FORECAST WATERS N OF A LINE FROM 31N58W TO 26N65W TO 27N70W 
TO 31N72W S TO SW WINDS 20 TO 30 KT. SEAS 12 TO 18 FT IN MIXED 
SWELL. ELSEWHERE N OF A LINE FROM 31N58W TO 23N67W TO 27N67W TO 
31N81W WINDS 20 KT OR LESS. SEAS 8 TO 12 FT IN MIXED SWELL. SEE 
THE OCEAN PREDICTION CENTER IN PART 1 ABOVE FOR ADDITIONAL 
WARNING INFORMATION.
.48 HOUR FORECAST POST-TROPICAL EXTRATROPICAL FIONA NEAR 45.5N 
61.2W. MAXIMUM SUSTAINED WINDS 80 KT GUSTS 100 KT. TROPICAL 
STORM FORCE WINDS WITHIN 270 NM NE QUADRANT...330 NM SE 
QUADRANT...300 NM SW QUADRANT...AND 240 NM NW QUADRANT. OVER 
FORECAST WATERS CONDITIONS MERGED.
.72 HOUR FORECAST POST-TROPICAL EXTRATROPICAL FIONA NEAR 51.8N 
59.2W. MAXIMUM SUSTAINED WINDS 45 KT GUSTS 55 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST POST-TROPICAL EXTRATROPICAL FIONA NEAR 58.9N 
58.6W. MAXIMUM SUSTAINED WINDS 35 KT GUSTS 45 KT.
.120 HOUR FORECAST POST-TROPICAL EXTRATROPICAL FIONA NEAR 64.2N 
57.8W. MAXIMUM SUSTAINED WINDS 35 KT GUSTS 45 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.

.LOW PRES NEAR 11.5N65W 1008 MB MOVING W AT 11 KT. WITHIN 150 NM 
NE QUADRANT AND 90 NM SEMICIRCLE OF LOW CENTER WINDS 20 TO 30 
KT. SEAS 8 TO 10 FT. 
.24 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR 
14N69.5W 1007 MB. WITHIN 150 NM N SEMICIRCLE AND 120 NM SE 
QUADRANT OF LOW CENTER WINDS 20 TO 30 KT. SEAS 8 TO 11 FT. 
.48 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR 
15N74.5W 1006 MB. WITHIN 180 NM N AND 90 NM S SEMICIRCLES WINDS 
20 TO 30 KT. SEAS 8 TO 12 FT. 

.24 HOUR FORECAST COLD FRONT FROM 31N72W TO 29N81W. N OF FRONT 
NW TO N WINDS 20 TO 30 KT. SEAS 8 TO 11 FT.
.48 HOUR FORECAST COLD FRONT FROM 31N58W TO 27N70W TO 27N81W. N 
WINDS 20 KT OR LESS. SEAS 8 TO 11 FT IN N SWELL. N OF 27N E OF 
FRONT TO A LINE FROM 31N50W TO 25N55W TO 27N70W WINDS 20 KT OR 
LESS. SEAS 8 TO 12 FT IN W TO NW SWELL...HIGHEST NEAR 31N55W.

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

$$
.FORECASTER GR. NATIONAL HURRICANE CENTER.