

798 

FZNT01 KWBC 312139

HSFAT1



HIGH SEAS FORECAST FOR METAREA IV 

NWS OCEAN PREDICTION CENTER WASHINGTON DC 

2230 UTC WED AUG 31 2016 



CCODE/2:31:04:11:00/AOW+AOE/NWS/CCODE

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS 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. 

ONLY YOU KNOW THE WEATHER AT YOUR POSITION. REPORT IT TO THE 

NATIONAL WEATHER SERVICE. EMAIL US AT 

VOSOPS@NOAA.GOV(LOWERCASE). 



PAN PAN 



NORTH ATLANTIC NORTH OF 31N TO 67N AND WEST OF 35W 



SYNOPSIS VALID 1800 UTC AUG 31 

24 HOUR FORECAST VALID 1800 UTC SEP 01 

48 HOUR FORECAST VALID 1800 UTC SEP 02 



.WARNINGS. 



.FOR INFORMATION REGARDING TROPICAL STORM HERMINE PLEASE SEE 

MIAMI SECTION PART II BELOW. 



...HURRICANE WARNING... 

.HURRICANE GASTON NEAR 35.0N 46.9W 969 MB AT 2100 UTC AUG 31 

MOVING NE OR 055 DEG AT 16 KT. MAXIMUM SUSTAINED WINDS 90 KT 

GUSTS 110 KT. TROPICAL STORM FORCE WINDS WITHIN 130 NM NE 

QUADRANT...150 NM SE QUADRANT...120 NM SW QUADRANT...AND 90 NM 

NW QUADRANT. SEAS 12 FT OR GREATER WITHIN 300 NM N 

SEMICIRCLE...240 NM SE QUADRANT AND 180 NM SW QUADRANT WITH SEAS 

TO 45 FT. ELSEWHERE FROM 31N TO 38N BETWEEN 40W AND 52W WINDS 20 

TO 33 KT. SEAS TO 11 FT. 

.24 HOUR FORECAST HURRICANE GASTON NEAR 37.7N 39.5W. MAXIMUM 

SUSTAINED WINDS 75 KT GUSTS 90 KT. TROPICAL STORM FORCE WINDS 

WITHIN 120 NM NE QUADRANT...150 NM SE QUADRANT...140 NM SW 

QUADRANT AND 90 NM NW QUADRANT. SEAS 12 FT OR GREATER WITHIN 240 

NM OF CENTER EXCEPT 300 NM NW QUADRANT WITH SEAS TO 43 FT. 

ELSEWHERE FROM 31N TO 42N BETWEEN 35W AND 46W WINDS 20 TO 33 KT. 

SEAS TO 11 FT. 

.48 HOUR FORECAST TROPICAL STORM GASTON NEAR 39.0N 30.8W. 

MAXIMUM SUSTAINED WINDS 55 KT GUSTS 65 KT. TROPICAL STORM FORCE 

WINDS WITHIN 90 NM NE QUADRANT...120 NM SE QUADRANT...110 NM SW 

QUADRANT...AND 60 NM NW QUADRANT. SEAS 12 FT OR GREATER WITHIN 

300 NM OF CENTER EXCEPT 420 NM NW QUADRANT WITH SEAS TO 30 FT. 

.72 HOUR FORECAST POST-TROPICAL GASTON NEAR 41.0N 25.0W. MAXIMUM 

SUSTAINED WINDS 35 KT GUSTS 45 KT. 

.EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE. 

.96 HOUR FORECAST...DISSIPATED. 



...TROPICAL STORM WARNING... 

.TROPICAL DEPRESSION EIGHT NEAR 36.3N 71.9W 1010 MB AT 2100 UTC 

AUG 31 MOVING NE OR 055 DEG AT 14 KT. MAXIMUM SUSTAINED WINDS 25 

KT GUSTS 35 KT. SEAS TO 10 FT. 

.24 HOUR FORECAST TROPICAL STORM EIGHT NEAR 39.9N 64.0W. MAXIMUM 

SUSTAINED WINDS 35 KT GUSTS 45 KT. TROPICAL STORM FORCE WINDS 

WITHIN 40 NM NE QUADRANT...60 NM SE QUADRANT...40 NM SW 

QUADRANT...AND 0 NM NW QUADRANT. SEAS 12 FT OR GREATER WITHIN 60 

NM E AND S SEMICIRCLES WITH SEAS TO 14 FT. ELSEWHERE WITHIN 300 

NM S AND SE QUADRANTS WINDS 20 TO 33 KT. SEAS TO 10 FT. 

.48 HOUR FORECAST POST-TROPICAL EIGHT NEAR 44.0N 51.0W 1005 MB. 

WITHIN 300 NM S AND SE QUADRANTS WINDS 25 TO 35 KT. SEAS 8 TO 14 

FT. ELSEWHERE WITHIN 360 NM SE QUADRANT WINDS 20 TO 30 KT. SEAS 

TO 11 FT. 



...GALE WARNING... 

.LOW 54N39W 984 MB MOVING NE 15 KT. FROM 46N TO 53N BETWEEN 35W 

AND 48W WINDS 30 TO 45 KT. SEAS 12 TO 24 FT. ELSEWHERE FROM 44N 

TO 59N BETWEEN 35W AND 52W WINDS 20 TO 30 KT. SEAS 8 TO 14 FT.  

.24 HOUR FORECAST LOW E OF AREA 57N30W 989 MB. OVER FORECAST 

WATERS WITHIN 480 NM S QUADRANT WINDS 25 TO 35 KT. SEAS 12 TO 21 

FT. ELSEWHERE E OF A LINE FROM 46N42W TO 54N41W TO 59N37W WINDS 

20 TO 30 KT. SEAS 8 TO 14 FT. 

.48 HOUR FORECAST LOW AND CONDITIONS E OF FORECAST AREA. 



...GALE WARNING... 

.24 HOUR FORECAST NEW LOW 47N49W 1012 MB. WITHIN 240 NM SE 

SEMICIRCLE W TO SW WINDS TO 25 KT. SEAS TO 10 FT.

.36 HOUR FORECAST LOW 50N38W 1009 MB. WITHIN 240 NM S QUADRANT 

WINDS 25 TO 35 KT. SEAS 9 TO 14 FT.  

.48 HOUR FORECAST LOW AND CONDITIONS E OF FORECAST AREA. 



...GALE WARNING...

.24 HOUR FORECAST LOW 35N73W 1009 MB. N OF 31N AND SE OF A LINE 

FROM 32N80W TO 36N68W WINDS 20 TO 30 KT. SEAS TO 10 FT. 

.48 HOUR FORECAST LOW 39N60W 1005 MB. FRONT TO EXTEND FROM LOW 

CENTER TO 31N70W. WITHIN 480 NM E OF FRONT WINDS 25 TO 35 KT. 

SEAS 8 TO 14 FT. 



.SYNOPSIS AND FORECAST. 



.24 HOUR FORECAST NEW LOW INLAND OVER GREENLAND 62N44W 998 MB. 

WITHIN 300 NM S QUADRANT WINDS TO 25 KT. SEAS TO 8 FT. 

.48 HOUR FORECAST LOW 62N44W 998 MB. WITHIN 300 NM S QUADRANT 

WINDS 20 TO 30 KT. SEAS TO 8FT. 



.48 HOUR FORECAST WITHIN 120 NM OF THE W COAST OF GREENLAND AREA 

OF N TO NW WINDS 20 TO 30 KT. SEAS TO 9 FT.



.48 HOUR FORECAST W OF A LINE FROM 58N53W TO 65N62W AREA OF NW 

WINDS TO 25 KT. SEAS LESS THAN 8 FT.  



.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 53N TO 59N 

BETWEEN 35W AND 43W. 

.24 HOUR FORECAST CONDITIONS IMPROVED. 



.HIGH 41N55W 1020 MB MOVING SE 10 KT. 

.24 HOUR FORECAST HIGH 40N50W 1021 MB. 

.48 HOUR FORECAST HIGH DISSIPATED. 



.FORECASTER KOSIER. OCEAN PREDICTION CENTER.



NATIONAL HURRICANE CENTER MIAMI FL



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

GULF OF MEXICO.



SYNOPSIS VALID 1800 UTC WED AUG 31.

24 HOUR FORECAST VALID 1800 UTC THU SEP 01.

48 HOUR FORECAST VALID 1800 UTC FRI SEP 02.



.WARNINGS.



...ATLC HURRICANE WARNING...

.HURRICANE GASTON N OF FORECAST AREA NEAR 35.0N 46.9W 969 MB AT

2100 UTC AUG 31. MAXIMUM SUSTAINED WINDS 90 KT GUSTS 110 KT.

AREA OF TROPICAL STORM FORCE WINDS N OF 31N. ELSEWHERE OVER

FORECAST WATERS WITHIN 270 NM S SEMICIRCLE WINDS 20 TO 33 KT.

SEAS 10 TO 14 FT. REMAINDER OF AREA N OF 29N BETWEEN 42W AND 54W

WINDS 20 KT OR LESS. SEAS 8 TO 12 FT IN MIXED SWELL.

.24 HOUR FORECAST HURRICANE GASTON NEAR 37.7N 39.5W. MAXIMUM

SUSTAINED WINDS 75 KT GUSTS 90 KT. AREA OF TROPICAL STORM FORCE

WINDS AND 12 FT SEAS N OF 31N. OVER FORECAST WATERS N OF 30N

BETWEEN 37W AND 48W WINDS 20 KT OR LESS. SEAS TO 9 FT IN MIXED

SWELL.

.48 HOUR FORECAST TROPICAL STORM GASTON NEAR 39.0N 30.8W.

MAXIMUM SUSTAINED WINDS 55 KT GUSTS 65 KT. OVER FORECAST WATERS

WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.72 HOUR FORECAST TROPICAL STORM GASTON NEAR 41.0N 25.0W.

MAXIMUM SUSTAINED WINDS 45 KT GUSTS 45 KT.

EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.

.96 HOUR FORECAST...DISSIPATED.



...GULF OF MEXICO AND ATLC TROPICAL STORM WARNING...

.TROPICAL STORM HERMINE NEAR 25.5N 87.4W 1004 MB AT 2100 UTC AUG

31 MOVING NNE 6 KT. MAXIMUM SUSTAINED WINDS 40 KT GUSTS 50 KT.

RADIUS OF 12 FT SEAS WITHIN 120 NM E SEMICIRCLE WITH SEAS TO 14

FT. ELSEWHERE WITHIN 60 NM OF CENTER EXCEPT 240 NM SE SEMICIRCLE

WINDS 20 TO 33 KT. SEAS TO 10 FT.

.24 HOUR FORECAST TROPICAL STORM HERMINE NEAR 28.1N 86.3W.

MAXIMUM SUSTAINED WINDS 50 KT GUSTS 60 KT. TROPICAL STORM FORCE

WINDS WITHIN 110 NM NE QUADRANT...120 NM SE QUADRANT...110 NM NE

QUADRANT AND 40 NM NW QUADRANT. SEAS 12 FT OR GREATER OVER

FORECAST WATERS WITHIN 150 NM SE SEMICIRCLE WITH SEAS TO 17 FT.

ELSEWHERE OVER FORECAST WATERS WITHIN 240 NM SE

SEMICIRCLE WINDS 20 TO 33 KT. SEAS 8 TO 11 FT.

.48 HOUR FORECAST TROPICAL STORM HERMINE INLAND NEAR 32.0N 82.9W.

MAXIMUM SUSTAINED WINDS 50 KT GUSTS 60 KT. TROPICAL STORM FORCE

WINDS WITHIN 110 NM NE QUADRANT AND 140 NM SE QUADRANT. SEAS 12

FT OR GREATER WITHIN 240 NM SE QUADRANT WITH SEAS TO 14

FT.ELSEWHERE OVER FORECAST WATERS WITHIN 300 NM SE QUADRANT

WINDS20 TO 33 KT. SEAS 8 TO 11 FT.

.72 HOUR FORECAST POST-TROPICAL EXTRATROPICAL HERMINE NEAR 36.5N

77.5W. MAXIMUM SUSTAINED WINDS 50 KT GUSTS 60 KT.

EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.

.96 HOUR FORECAST POST-TROPICAL EXTRATROPICAL HERMINE NEAR 39.0N

74.5W. MAXIMUM SUSTAINED WINDS 45 KT GUSTS 55 KT.

.120 HOUR FORECAST POST-TROPICAL EXTRATROPICAL HERMINE NEAR

39.5N 72.0W. MAXIMUM SUSTAINED WINDS 40 KT GUSTS 50 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 12 HOUR FORECAST N OF 28N W OF 76W S TO SW WINDS 20 TO 25

KT. SEAS 8 FT.

.24 HOUR FORECAST N OF 30N BETWEEN 72W AND 76W WINDS 20 KT OR

LESS. SEAS 8 FT.

.48 HOUR FORECAST AREA DESCRIBED IN ASSOCIATION WITH

FORECAST T.S. HERMINE. 



.ATLC 24 HOUR FORECAST TROPICAL WAVE S OF 20N ALONG 39W. FROM

18N TO 24N E OF 40W WINDS 20 KT OR LESS. SEAS 8 FT IN NE TO E

SWELL.

.48 HOUR FORECAST TROPICAL WAVE S OF 20N ALONG 48W. FROM 16N TO

21N BETWEEN 44W AND 50W E WINDS 20 TO 25 KT. SEAS 8 TO 10 FT.

FROM 16N TO 22N BETWEEN 40W AND 50W WINDS 20 KT OR LESS. SEAS

8 FT IN E SWELL.



.CARIBBEAN FROM 11N TO 17N BETWEEN 70W AND 78W E WINDS 20 TO 25

KT. SEAS 8 TO 11 FT.

.24 HOUR FORECAST FROM 12N TO 17N BETWEEN 70W AND 80W WINDS 20

KT OR LESS. SEAS 8 TO 10 FT. 

.48 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.



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



$$

.FORECASTER COBB. NATIONAL HURRICANE CENTER.

