000
FZNT02 KNHC 302109
HSFAT2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
2230 UTC WED AUG 30 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 WED AUG 30.
24 HOUR FORECAST VALID 1800 UTC THU AUG 31.
48 HOUR FORECAST VALID 1800 UTC FRI SEP 01.

.WARNINGS.

...ATLC TROPICAL STORM WARNING...
.TROPICAL STORM IDALIA NEAR 32.2N 81.7W 984 MB AT 2100 UTC AUG 
30 MOVING NE OR 035 DEG AT 18 KT. MAXIMUM SUSTAINED WINDS 60 KT 
GUSTS 75 KT. TROPICAL STORM FORCE WINDS WITHIN 50 NM W 
SEMICIRCLE...140 NM NE QUADRANT AND 180 NM SE QUADRANT. SEAS 12 
FT OR GREATER WITHIN 0 NM OF CENTER EXCEPT 60 NM SE QUADRANT 
WITH SEAS TO 13 FT. ELSEWHERE OVER THE ATLC FORECAST WATERS N OF 
26N W OF 77W WINDS 20 TO 33 KT. SEAS 8 TO 12 FT. OVER THE GULF 
OF MEXICO WATERS N OF 24N E OF 85W SW TO W WINDS 20 TO 30 KT. 
SEAS 8 TO 10 FT.
.24 HOUR FORECAST TROPICAL STORM IDALIA N OF AREA OVER WATER 
NEAR 34.1N 75.7W. MAXIMUM SUSTAINED WINDS 50 KT GUSTS 60 KT. 
TROPICAL STORM FORCE WINDS WITHIN 160 NM NE QUADRANT...140 NM SE 
QUADRANT...120 NM SW QUADRANT...AND 100 NM NW QUADRANT. OVER 
FORECAST WATERS N OF 30N BETWEEN 71W AND 77W SW TO W WINDS 25 TO 
30 KT. SEAS 10 TO 15 FT IN MIXED SWELL. ELSEWHERE N OF 28N 
BETWEEN 70W AND 79W SW TO W WINDS 20 TO 25 KT. SEAS 8 TO 10 FT. 
SEE PART 1.
.48 HOUR FORECAST TROPICAL STORM IDALIA N OF AREA NEAR 32.8N 
69.7W. MAXIMUM SUSTAINED WINDS 45 KT GUSTS 55 KT. TROPICAL STORM 
FORCE WINDS WITHIN 170 NM NE QUADRANT...70 NM SE QUADRANT...80 
NM SW QUADRANT...AND 140 NM NW QUADRANT. OVER FORECAST WATERS N 
OF 29N BETWEEN 65W AND 76W WINDS 20 TO 30 KT. SEAS 11 TO 17 FT 
IN MIXED SWELL. ELSEWHERE N OF 27.5N BETWEEN 63W AND 80W WINDS 
20 KT OR LESS. SEAS 8 TO 11 FT IN MIXED SWELL. SEE PART 1.
.72 HOUR FORECAST TROPICAL STORM IDALIA NEAR 31.7N 67.3W.
MAXIMUM SUSTAINED WINDS 45 KT GUSTS 55 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST TROPICAL STORM IDALIA NEAR 32.3N 65.1W.
MAXIMUM SUSTAINED WINDS 45 KT GUSTS 55 KT.
.120 HOUR FORECAST TROPICAL STORM IDALIA NEAR 34.4N 61.3W.
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.

.ATLC HURRICANE FRANKLIN WELL N OF AREA NEAR 34.2N 65.9W 961 MB 
AT 2100 UTC AUG 30 MOVING NE OR 055 DEG AT 11 KT. MAXIMUM 
SUSTAINED WINDS 90 KT GUSTS 110 KT. TROPICAL STORM FORCE WINDS 
WITHIN 120 NM NE QUADRANT...150 NM SE QUADRANT...130 NM SW 
QUADRANT...AND 90 NM NW QUADRANT. OVER FORECAST WATERS N OF 30N 
BETWEEN 64W AND 70W SW TO W WINDS 20 TO 30 KT. SEAS 9 TO 13 FT. 
ELSEWHERE N OF 28N BETWEEN 61W AND 70W WINDS 20 KT OR LESS. SEAS 
8 TO 9 FT IN MIXED SWELL. SEE PART 1.
.24 HOUR FORECAST HURRICANE FRANKLIN WELL N OF AREA NEAR 35.8N 
60.8W. MAXIMUM SUSTAINED WINDS 75 KT GUSTS 90 KT. TROPICAL STORM 
FORCE WINDS WITHIN 130 NM NE AND SW QUADRANTS...100 NM NW 
QUADRANT AND 150 NM SE QUADRANT. OVER FORECAST WATERS N OF 30N 
BETWEEN 55W AND 64W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN MIXED 
SWELL. SEE PART 1.
.48 HOUR FORECAST HURRICANE FRANKLIN WELL N OF AREA NEAR 38.1N 
53.9W. MAXIMUM SUSTAINED WINDS 65 KT GUSTS 80 KT. TROPICAL STORM 
FORCE WINDS WITHIN 150 NM OF CENTER EXCEPT 160 NM SE QUADRANT. 
OVER FORECAST WATERS N OF 28N BETWEEN 50W AND 55W WINDS 20 KT OR 
LESS. SEAS 8 FT IN MIXED SWELL. SEE PART 1.

.TROPICAL DEPRESSION ELEVEN NEAR 28.5N 52.3W 1014 MB AT 2100 UTC 
AUG 30 MOVING N OR 360 DEG AT 2 KT. MAXIMUM SUSTAINED WINDS 30 
KT GUSTS 40 KT. WITHIN 60 NM E SEMICIRCLE WINDS 20 TO 30 KT. 
SEAS 8 TO 9 FT. 
.24 HOUR FORECAST TROPICAL DEPRESSION ELEVEN NEAR 30.4N 52.4W.
MAXIMUM SUSTAINED WINDS 30 KT GUSTS 40 KT. WITHIN 90 NM E 
SEMICIRCLE WINDS 20 TO 30 KT. SEAS 8 TO 10 FT.
.36 HOUR FORECAST POST-TROPICAL REMNANT LOW ELEVEN NEAR 32.7N 
52.0W. MAXIMUM SUSTAINED WINDS 30 KT GUSTS 40 KT.
.48 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.

.CARIBBEAN FROM 11N TO 15N BETWEEN 70W AND 77W...INCLUDING THE 
GULF OF VENEZUELA...NE TO E WINDS 20 TO 25 KT. SEAS 8 FT. FROM 
15N TO 18N BETWEEN 70W AND 75W E WINDS 20 TO 25 KT. SEAS LESS 
THAN 8 FT.
.12 HOUR FORECAST FROM 11N TO 15N BETWEEN 68W AND 77W... 
INCLUDING THE GULF OF VENEZUELA...NE TO E WINDS 20 TO 25 KT. 
SEAS TO 8 FT. FROM 15N TO 17.5N BETWEEN 70W AND 76W E WINDS 20 
TO 25 KT. SEAS TO 8 FT.
.24 HOUR FORECAST FROM 11N TO 16.5N BETWEEN 69W AND 77W... 
INCLUDING THE GULF OF VENEZUELA...NE TO E WINDS 20 TO 25 KT. 
SEAS 8 TO 9 FT.
.36 HOUR FORECAST FROM 12N TO 16N BETWEEN 68W AND 80W... 
INCLUDING THE GULF OF VENEZUELA...NE TO E WINDS 20 TO 25 KT. 
SEAS 8 TO 9 FT.
.48 HOUR FORECAST LITTLE CHANGE.

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

$$
.FORECASTER GR. NATIONAL HURRICANE CENTER.