

197 

FZNT01 KWBC 310956

HSFAT1



HIGH SEAS FORECAST FOR METAREA IV 

NWS OCEAN PREDICTION CENTER WASHINGTON DC 

1030 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS 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 0600 UTC AUG 31 

24 HOUR FORECAST VALID 0600 UTC SEP 01 

48 HOUR FORECAST VALID 0600 UTC SEP 02 



.WARNINGS. 



.FOR INFORMATION REGARDING TROPICAL DEPRESSION NINE PLEASE SEE 

MIAMI SECTION PART II BELOW. 



...HURRICANE WARNING...

.HURRICANE GASTON NEAR 33.4N 50.2W 956 MB AT 0900 UTC AUG 31

MOVING NE OR 050 DEG AT 8 KT. MAXIMUM SUSTAINED WINDS 105 KT

GUSTS 130 KT. TROPICAL STORM FORCE WINDS WITHIN 100 NM NE

QUADRANT...140 NM SE QUADRANT...120 NM SW QUADRANT...AND 80 NM

NW QUADRANT.  SEAS 12 FT OR GREATER WITHIN 240 NM E SEMICIRCLE

AND 180 NM W SEMICIRCLE WITH SEAS TO 44 FT. ELSEWHERE FROM 31N 

TO 38N BETWEEN 43W AND 57W WINDS 20 TO 33 KT. SEAS TO 11 FT.

.24 HOUR FORECAST HURRICANE GASTON NEAR 36.3N 44.5W. MAXIMUM

SUSTAINED WINDS 95 KT GUSTS 115 KT. LITTLE CHANGE IN RADIUS OF

TROPICAL STORM FORCE WINDS. SEAS 12 FT OR GREATER WITHIN 240 NM 

OF CENTER EXCEPT 300 NM NW QUADRANT WITH SEAS TO 42 FT. 

ELSEWHERE FROM 31N TO 40N BETWEEN 37W AND 50W WINDS 20 TO 33 KT. 

SEAS TO 11 FT.

.48 HOUR FORECAST HURRICANE GASTON NEAR 38.5N 35.0W. MAXIMUM

SUSTAINED WINDS 70 KT GUSTS 85 KT. TROPICAL STORM FORCE WINDS

WITHIN 130 NM NE QUADRANT...160 NM SE QUADRANT...120 NM SW

QUADRANT...AND 100 NM NW QUADRANT. SEAS 12 FT OR GREATER WITHIN 

300 NM OF CENTER EXCEPT 420 NM NW QUADRANT WITH SEAS TO 38 FT.

.72 HOUR FORECAST TROPICAL STORM GASTON NEAR 39.5N 28.0W.

MAXIMUM SUSTAINED WINDS 45 KT GUSTS 55 KT.

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

.96 HOUR FORECAST POST-TROPICAL GASTON NEAR 41.5N 22.0W. MAXIMUM

SUSTAINED WINDS 30 KT GUSTS 40 KT.

.120 HOUR FORECAST...DISSIPATED.



...TROPICAL STORM WARNING...

.TROPICAL DEPRESSION EIGHT NEAR 34.8N 74.3W 1011 MB AT 0900 UTC

AUG 31 MOVING NE OR 045 DEG AT 4 KT. MAXIMUM SUSTAINED WINDS 30

KT GUSTS 40 KT. SEAS TO 9 FT.

.24 HOUR FORECAST TROPICAL STORM EIGHT NEAR 37.7N 69.0W. MAXIMUM

SUSTAINED WINDS 40 KT GUSTS 50 KT. TROPICAL STORM FORCE WINDS

WITHIN 30 NM NE QUADRANT...50 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 11 FT.

.48 HOUR FORECAST POST-TROPICAL EIGHT NEAR 42.5N 57.5W 1006 MB. 

WITHIN 180 NM S AND SE QUADRANTS WINDS 25 TO 35 KT. SEAS 8 TO 14 

FT. ELSEWHERE WITHIN 360 NM S AND E QUADRANTS WINDS 20 TO 30 KT. 

SEAS TO 11 FT.



...GALE WARNING... 

.LOW 52N43W 984 MB MOVING NE 15 KT. WITHIN 360 NM N SEMICIRCLE 

AND 660 NM SE AND 480 NM SW QUADRANTS WINDS 25 TO 40 KT. SEAS 8 

TO 16 FT...EXCEPT SW QUADRANT 12 TO 22 FT.

.24 HOUR FORECAST LOW 56N35W 987 MB. WITHIN 660 NM SW AND 300 NM 

NW QUADRANTS WINDS 25 TO 40 KT. SEAS 11 TO 22 FT...HIGHEST SW 

QUADRANT.

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



...GALE WARNING...

.24 HOUR FORECAST FROM 44N TO 48N BETWEEN 47W AND 59W AREA OF W 

TO SW WINDS TO 25 KT. SEAS TO 8 FT.

.48 HOUR FORECAST NEW LOW 49N40W 1004 MB. WITHIN 300 NM S 

SEMICIRCLE WINDS 25 TO 35 KT. SEAS 8 TO 14 FT.



.SYNOPSIS AND FORECAST. 



.FROM 57N TO 60N BETWEEN 41W AND 50W AREA OF E TO NE WINDS 20 TO 

30 KT. SEAS TO 10 FT.

.24 HOUR FORECAST CONDITIONS DIMINISHED.



.24 HOUR FORECAST NEW LOW 33N78W 1009 MB. FROM 31N TO 34N W OF 

73W WINDS 20 TO 30 KT. SEAS TO 10 FT.

.48 HOUR FORECAST LOW 37N67W 1008 MB. N OF 31N WITHIN 360 NM S 

OF A LINE FROM THE LOW TO 34N73W WINDS 20 TO 30 KT. SEAS 8 TO 13 

FT.



.48 HOUR FORECAST NEW LOW 61N42W 999 MB. WITHIN 240 NM S AND SW 

QUADRANTS WINDS TO 25 KT. SEAS TO 8 FT.



.48 HOUR FORECAST N OF 63N BETWEEN 51W AND 57W WINDS TO 25 KT. 

SEAS TO 9 FT.



.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 51N TO 57N 

BETWEEN 35W AND 43W.

.24 HOUR FORECAST CONDITIONS IMPROVED. 



.HIGH 42N59W 1018 MB MOVING SE 10 KT.

.24 HOUR FORECAST HIGH 38N55W 1019 MB.

.48 HOUR FORECAST HIGH 36N48W 1021 MB. 



.FORECASTER COLLINS. 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 0600 UTC WED AUG 31.

24 HOUR FORECAST VALID 0600 UTC THU SEP 01.

48 HOUR FORECAST VALID 0600 UTC FRI SEP 02.



.WARNINGS.



...ATLC HURRICANE WARNING...

.HURRICANE GASTON N OF FORECAST AREA NEAR 33.4N 50.2W. MAXIMUM

SUSTAINED WINDS 105 KT GUSTS 130 KT. AREA OF TROPICAL STORM

FORCE WINDS N OF 31N. ELSEWHERE OVER FORECAST WATERS WITHIN 240

NM S SEMICIRCLE WINDS 20 TO 33 KT. SEAS 11 TO 18 FT. REMAINDER

OF AREA N OF 28N BETWEEN 45W AND 57W WINDS 20 KT OR LESS. SEAS 8

TO 12 FT IN MIXED SWELL.

.24 HOUR FORECAST HURRICANE GASTON NEAR 36.3N 44.5W. MAXIMUM

SUSTAINED WINDS 95 KT GUSTS 115 KT. AREA OF TROPICAL STORM FORCE

WINDS AND 12 FT SEAS N OF 31N. OVER FORECAST WATERS N OF 29N

BETWEEN 39W AND 51W WINDS 20 KT OR LESS. SEAS 8 TO 11 FT IN

MIXED SWELL.

.48 HOUR FORECAST HURRICANE GASTON NEAR 38.5N 35.0W. MAXIMUM

SUSTAINED WINDS 70 KT GUSTS 85 KT. OVER FORECAST WATERS WINDS 20

KT OR LESS. SEAS LESS THAN 8 FT.

.72 HOUR FORECAST TROPICAL STORM GASTON NEAR 39.5N 28.0W.

MAXIMUM SUSTAINED WINDS 45 KT GUSTS 55 KT.

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

.96 HOUR FORECAST POST-TROPICAL GASTON NEAR 41.5N 22.0W. MAXIMUM

SUSTAINED WINDS 30 KT GUSTS 40 KT.

.120 HOUR FORECAST...DISSIPATED.



...GULF OF MEXICO TROPICAL STORM WARNING...

.TROPICAL DEPRESSION NINE NEAR 24.5N 88.1W 1004 MB AT 0900 UTC

AUG 31 MOVING N OR 360 DEG AT 2 KT. MAXIMUM SUSTAINED WINDS 30

KT GUSTS 40 KT. WITHIN 60 NM OF CENTER EXCEPT 300 NM E AND 180

NM NW QUADRANTS WINDS 20 TO 30 KT. SEAS TO 10 FT. 

.24 HOUR FORECAST TROPICAL STORM NINE NEAR 26.9N 86.9W. MAXIMUM

SUSTAINED WINDS 45 KT GUSTS 55 KT. TROPICAL STORM FORCE WINDS

WITHIN 60 NM E AND 30 NM W SEMICIRCLES. SEAS 12 FT OR GREATER

WITHIN 90 NM E SEMICIRCLE WITH SEAS TO 13 FT. ELSEWHERE WITHIN

90 NM OF CENTER...EXCEPT 300 NM NE AND 240 NM SE QUADRANTS WINDS

20 TO 33 KT. SEAS TO 10 FT.

.48 HOUR FORECAST TROPICAL STORM NINE INLAND NEAR 30.3N 83.6W.

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

WINDS WITHIN 80 NM E SEMICIRCLE...50 NM SW QUADRANT AND 60 NM NW

QUADRANT. SEAS 12 FT OR GREATER OVER FORECAST WATERS WITHIN AREA

OF TROPICAL STORM FORCE WINDS.  ELSEWHERE WITHIN 90 NM OF CENTER

EXCEPT 240 NM SE AND 120 NM NW SEMICIRCLES WINDS 20 TO 33 KT.

SEAS 8 TO 11 FT. 

.72 HOUR FORECAST TROPICAL STORM NINE OVER WATER NEAR 34.2N

76.8W. MAXIMUM SUSTAINED WINDS 60 KT GUSTS 75 KT.

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

.96 HOUR FORECAST TROPICAL STORM NINE NEAR 37.0N 70.2W. MAXIMUM

SUSTAINED WINDS 60 KT GUSTS 75 KT.

.120 HOUR FORECAST POST-TROPICAL EXTRATROPICAL NINE NEAR 39.0N

68.0W. MAXIMUM SUSTAINED WINDS 55 KT GUSTS 65 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 N OF 27N W OF 78W SE TO S WINDS 20 TO 25 KT. SEAS TO 8 FT.

.24 HOUR FORECAST N OF 29N W OF 76.5W SW WINDS 20 TO 25 KT. SEAS

TO 8 FT.

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



.ATLC 24 HOUR FORECAST TROPICAL WAVE S OF 20N ALONG 36W. FROM

20N TO 24N E OF 37W WINDS 20 KT OR LESS. SEAS 8 FT IN NE TO E

SWELL.

.48 HOUR FORECAST TROPICAL WAVE S OF 20N ALONG 45W. FROM 16.5N

TO 21N BETWEEN 42W AND 48W WINDS 20 TO 25 KT. SEAS 8 TO 10 FT.

FROM 16N TO 23N E OF 42W WINDS 20 KT OR LESS. SEAS TO 10 FT IN E

SWELL.



.CARIBBEAN FROM 11N TO 17N BETWEEN 68W AND 79W E WINDS 20 TO 25

KT. SEAS 8 TO 11 FT.

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

TO 25 KT. SEAS 8 TO 11 FT. 

.48 HOUR FORECAST FROM 12N TO 15N BETWEEN 72W AND 76W E WINDS 20

TO 25 KT. SEAS TO 9 FT.



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



$$

.FORECASTER MUNDELL. NATIONAL HURRICANE CENTER.

