000
FZNT02 KNHC 282117
HSFAT2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
2230 UTC MON AUG 28 2023

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1800 UTC MON AUG 28.
24 HOUR FORECAST VALID 1800 UTC TUE AUG 29.
48 HOUR FORECAST VALID 1800 UTC WED AUG 30.

.WARNINGS.

...ATLC HURRICANE WARNING...
.HURRICANE FRANKLIN NEAR 28.5N 71.0W 937 MB AT 2100 UTC AUG 28 
MOVING N OR 360 DEG AT 8 KT. MAXIMUM SUSTAINED WINDS 125 KT 
GUSTS 150 KT. TROPICAL STORM FORCE WINDS WITHIN 130 NM NE 
QUADRANT...120 NM SE QUADRANT...110 NM SW QUADRANT...AND 80 NM 
NW QUADRANT. SEAS 12 FT OR GREATER WITHIN 180 NM NW AND SE 
QUADRANTS...210 NM NE QUADRANT AND 120 NM SW QUADRANT WITH SEAS 
TO 35 FT. ELSEWHERE WITHIN 210 NM OF CENTER...EXCEPT 150 NM SW 
QUADRANT WINDS 20 TO 33 KT. SEAS 8 TO 12 FT N OF 25N...E OF THE 
BAHAMAS...BETWEEN 65W AND 77W.
.24 HOUR FORECAST HURRICANE FRANKLIN JUST N OF AREA NEAR 31.3N 
70.3W. MAXIMUM SUSTAINED WINDS 130 KT GUSTS 160 KT. TROPICAL 
STORM FORCE WINDS WITHIN 130 NM E SEMICIRCLE...100 NM SW 
QUADRANT AND 90 NM NW QUADRANT. SEAS 12 FT OR GREATER WITHIN 180 
NM OF CENTER...EXCEPT 120 NM SW QUADRANT WITH SEAS TO 42 FT. 
ELSEWHERE WITHIN 240 NM E SEMICIRCLE...210 SW QUADRANT AND 150 
NM NW QUADRANT WINDS 20 TO 33 KT. OVER FORECAST WATERS SEAS 8 TO 
12 FT N OF 27N BETWEEN 64W AND 77W. SEE PART 1 ABOVE.
.48 HOUR FORECAST HURRICANE FRANKLIN N OF AREA NEAR 34.9N 66.3W. 
MAXIMUM SUSTAINED WINDS 110 KT GUSTS 135 KT. TROPICAL STORM 
FORCE WINDS WITHIN 130 NM NE AND SW QUADRANTS...90 NM NW 
QUADRANT AND 140 NM SE QUADRANT. OVER FORECAST WATERS N OF 30N 
BETWEEN 64W AND 70W SW TO W WINDS 20 TO 25 KT. SEAS 10 TO 13 FT 
IN MIXED SWELL. ELSEWHERE N OF 27N BETWEEN 60W AND 71W WINDS 20 
KT OR LESS. SEAS 8 TO 10 FT IN MIXED SWELL. SEE PART 1 ABOVE.
.72 HOUR FORECAST HURRICANE FRANKLIN NEAR 39.6N 57.3W. MAXIMUM 
SUSTAINED WINDS 90 KT GUSTS 110 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST POST-TROPICAL EXTRATROPICAL FRANKLIN NEAR 
45.6N 48.3W. MAXIMUM SUSTAINED WINDS 75 KT GUSTS 90 KT.
.120 HOUR FORECAST POST-TROPICAL EXTRATROPICAL FRANKLIN NEAR 
50.4N 37.6W. MAXIMUM SUSTAINED WINDS 60 KT GUSTS 75 KT.

...CARIBBEAN AND GULF OF MEXICO HURRICANE WARNING...
.TROPICAL STORM IDALIA NEAR 21.4N 85.1W 987 MB AT 2100 UTC AUG 
28 MOVING N OR 360 DEG AT 7 KT. MAXIMUM SUSTAINED WINDS 60 KT 
GUSTS 75 KT. TROPICAL STORM FORCE WINDS WITHIN 50 NM W 
SEMICIRCLE...80 NM NE QUADRANT AND 130 NM SE QUADRANT.  SEAS 12 
FT OR GREATER WITHIN 120 NM E SEMICIRCLE...30 NM SW QUADRANT AND 
90 NM NW QUADRANT WITH SEAS TO 24 FT. ELSEWHERE FROM 18N TO 23N 
BETWEEN 81W AND 86W...INCLUDING THE YUCATAN CHANNEL...WINDS 20 
TO 33 KT. SEAS 8 TO 12 FT.
.12 HOUR FORECAST HURRICANE IDALIA NEAR 22.7N 85.2W. MAXIMUM 
SUSTAINED WINDS 70 KT GUSTS 85 KT.
.24 HOUR FORECAST HURRICANE IDALIA NEAR 24.9N 85.0W. MAXIMUM 
SUSTAINED WINDS 85 KT GUSTS 105 KT. TROPICAL STORM FORCE WINDS 
WITHIN 120 NM NE QUADRANT...130 NM SE QUADRANT...70 NM SW 
QUADRANT...AND 80 NM NW QUADRANT. SEAS 12 FT OR GREATER WITHIN 
105 NM N SEMICIRCLE...120 NM SE QUADRANT AND 60 NM SW QUADRANT 
WITH SEAS TO 28 FT. ELSEWHERE FROM 26N TO 28N E OF 88W WINDS 20 
TO 33 KT. SEAS 8 TO 12 FT. N OF 20N BETWEEN 81W AND 85W S WINDS 
20 TO 25 KT. SEAS 8 TO 9 FT W OF THE ISLE OF YOUTH.
.48 HOUR FORECAST HURRICANE IDALIA INLAND NEAR 30.4N 82.9W.
MAXIMUM SUSTAINED WINDS 80 KT GUSTS 100 KT. TROPICAL STORM FORCE 
WINDS WITHIN 110 NM NE QUADRANT...140 NM SE QUADRANT...90 NM SW 
QUADRANT...AND 70 NM NW QUADRANT. SEAS 12 FT OR GREATER FROM 26N 
TO 29N E 85W WITH SEAS TO 14 FT. ELSEWHERE N OF 24N E OF 86W 
WINDS 20 TO 30 KT. SEAS 10 TO 12 FT. REMAINDER OF THE AREA N OF 
24N BETWEEN 82W AND A LINE FROM 24N84W TO 28N81W TO 30N88W WINDS 
20 KT OR LESS. SEAS 8 TO 10 FT.  
.60 HOUR FORECAST TROPICAL STORM IDALIA INLAND NEAR 32.7N 80.4W.
MAXIMUM SUSTAINED WINDS 50 KT GUSTS 60 KT.
.72 HOUR FORECAST TROPICAL STORM IDALIA OVER WATER NEAR 34.0N 
76.8W. MAXIMUM SUSTAINED WINDS 50 KT GUSTS 60 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST TROPICAL STORM IDALIA NEAR 34.1N 71.4W.
MAXIMUM SUSTAINED WINDS 45 KT GUSTS 55 KT.
.120 HOUR FORECAST TROPICAL STORM IDALIA NEAR 34.0N 69.0W.
MAXIMUM SUSTAINED WINDS 45 KT GUSTS 55 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.

.CARIBBEAN 18 HOUR FORECAST FROM 12N TO 15N BETWEEN 68W AND 73W 
E WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT. 
.24 HOUR FORECAST LITTLE CHANGE.
.36 HOUR FORECAST FROM 11N TO 15N BETWEEN 70W AND 76W... 
INCLUDING THE GULF OF VENEZUELA...NE TO E WINDS 20 TO 25 KT. 
SEAS TO 8 FT NEAR THE COAST OF COLOMBIA.
.48 HOUR FORECAST FROM 11N TO 15N BETWEEN 70W AND 77W NE TO E 
WINDS 20 TO 25 KT. SEAS TO 8 FT.

.48 HOUR FORECAST FROM 25N TO 31W W OF 78W S WINDS 20 TO 30 KT. 
SEAS 8 FT N OF 28N. 

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

$$
.FORECASTER GR. NATIONAL HURRICANE CENTER.