000
FZNT02 KNHC 150240
HSFAT2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
0430 UTC TUE AUG 15 2017

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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.

PAN PAN

ATLANTIC FROM 07N TO 31N W OF 35W INCLUDING CARIBBEAN SEA AND
GULF OF MEXICO

SYNOPSIS VALID 0000 UTC TUE AUG 15.
24 HOUR FORECAST VALID 0000 UTC WED AUG 16.
48 HOUR FORECAST VALID 0000 UTC THU AUG 17.

.WARNINGS.

...HURRICANE WARNING...
.HURRICANE GERT NEAR 31.2N 72.3W 986 MB AT 0300 UTC AUG 15 
MOVING N OR 360 DEG AT 7 KT. MAXIMUM SUSTAINED WINDS 65 KT GUSTS 
80 KT. TROPICAL STORM FORCE WINDS WITHIN 90 NM NE...80 NM SE... 
30 NM SW AND 60 NM NW QUADRANTS. SEAS 12 FT OR GREATER WITHIN 
120 NM E SEMICIRCLE...60 NM SW QUADRANT AND 90 NM NW QUADRANT 
WITH SEAS TO 25 FT. ELSEWHERE OVER FORECAST WATERS WITHIN 180 NM 
OF CENTER EXCEPT 120 NM SW QUADRANT WINDS 20 TO 33 KT. SEAS 8 TO 
12 FT.
.24 HOUR FORECAST HURRICANE GERT N OF AREA NEAR 34.3N 70.6W. 
MAXIMUM SUSTAINED WINDS 75 KT GUSTS 90 KT. TROPICAL STORM FORCE 
WINDS WITHIN 100 NM E AND 60 NM W SEMICIRCLES. SEAS 12 FT OR 
GREATER WITHIN 150 NM NE...180 NM SE...120 NM SW AND 90 NM NW 
QUADRANTS WITH SEAS TO 31 FT. ELSEWHERE OVER FORECAST WATERS 
WITHIN 240 NM SE AND 90 NM NW SEMICIRCLES WINDS 20 TO 33 KT. 
SEAS 8 TO 12 FT.
.48 HOUR FORECAST HURRICANE GERT NEAR 39.3N 60.8W. MAXIMUM 
SUSTAINED WINDS 90 KT GUSTS 110 KT. TROPICAL STORM FORCE WINDS 
WITHIN 100 NM NE AND SW QUADRANTS...60 NM NW QUADRANT AND 120 NM 
SE QUADRANT. SEAS 12 FT OR GREATER WITHIN 120 NM NE...240 NM 
SE...210 NM SW AND 90 NM NW QUADRANTS WITH SEAS TO 37 FT. WINDS 
20 TO 33 KT WITHIN 300 NM SE AND 120 NM NW SEMICIRCLES. OVER 
FORECAST WATERS WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.
.72 HOUR FORECAST POST-TROPICAL EXTRATROPICAL GERT NEAR 46.0N 
46.0W. MAXIMUM SUSTAINED WINDS 70 KT GUSTS 85 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST POST-TROPICAL EXTRATROPICAL GERT NEAR 52.0N 
37.0W. MAXIMUM SUSTAINED WINDS 50 KT GUSTS 60 KT.
.120 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.

.SYNOPSIS AND FORECAST.

.ATLC LOW PRES NEAR 12N37W 1011 MB. WITHIN 30 NM N QUADRANT NE 
TO E WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT.
.24 HOUR FORECAST LOW PRES NEAR 13N42W 1011 MB. WITHIN 90 NM N 
QUADRANT NE TO E WINDS 20 TO 25 KT. SEAS TO 8 FT.
.48 HOUR FORECAST LOW PRES NEAR 14N47W 1010 MB. WITHIN 120 NM NE 
SEMICIRLE QUADRANT E TO SE WINDS 20 TO 25 KT. SEAS TO 9 FT.

.ATLC 48 HOUR FORECAST TROPICAL WAVE S OF 20N ALONG 42W. FROM 
15N TO 18N BETWEEN 36W AND 44W NE TO E WINDS 20 TO 25 KT. SEAS 8 
TO 9 FT.

.CARIBBEAN FROM 11N TO 13N BETWEEN 76W AND 78W NE WINDS 20 TO 25 
KT. SEAS 8 FT.
.06 HOUR FORECAST FROM 10.5N TO 14N BETWEEN 72W AND 78W NE WINDS 
20 TO 30 KT. SEAS TO 10 FT.
.24 HOUR FORECAST FROM 12N TO 15N BETWEEN 72W AND 76W NE TO E 
WINDS 20 TO 25 KT. SEAS TO 8 FT.
.48 HOUR FORECAST FROM 11N TO 13N BETWEEN 73W AND 76W NE TO E 
WINDS 20 TO 25 KT. SEAS TO 8 FT.

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

$$
.FORECASTER MUNDELL. NATIONAL HURRICANE CENTER.