

674 

FZNT01 KWBC 260333

HSFAT1



HIGH SEAS FORECAST FOR METAREA IV 

NWS OCEAN PREDICTION CENTER WASHINGTON DC 

0430 UTC FRI AUG 26 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS 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 0000 UTC AUG 26 

24 HOUR FORECAST VALID 0000 UTC AUG 27 

48 HOUR FORECAST VALID 0000 UTC AUG 28 



.WARNINGS. 



...GALE WARNING... 

.LOW 53N57W 1005 MB MOVING E 15 KT. OVER FORECAST WATERS WITHIN 

540 NM S QUADRANT WINDS TO 25 KT. SEAS LESS THAN 8 FT. 

.24 HOUR FORECAST LOW 54N47W 1004 MB. BETWEEN 180 NM AND 480 NM 

N QUADRANT WINDS 25 TO 35 KT. SEAS 8 TO 12 FT. ELSEWHERE BETWEEN 

180 NM AND 540 NM S QUADRANT WINDS TO 25 KT. SEAS TO 8 FT. 

.48 HOUR FORECAST COMPLEX LOW WITH MEAN CENTER NEAR 54N42W 1002 

MB. WITHIN 360 NM N AND NE QUADRANTS WINDS 25 TO 35 KT. SEAS 8 

TO 12 FT. ELSEWHERE WITHIN 780 NM S SEMICIRCLE WINDS TO 25 KT. 

SEAS TO 10 FT. 



.SYNOPSIS AND FORECAST. 



.24 HOUR FORECAST LOW 48N63W 1008 MB. OVER FORECAST WATERS 

WITHIN 360 NM S AND SE QUADRANTS WINDS TO 25 KT. SEAS TO 8 FT. 

.48 HOUR FORECAST LOW MERGED WITH COMPLEX LOW 54N42W NOTED 

ABOVE. 

.48 HOUR FORECAST EXCEPT WHERE NOTED BELOW IN ASSOCIATION WITH 

TROPICAL STORM GASTON OVER FORECAST WATERS S OF 33N BETWEEN 51W 

AND 59W WINDS 20 TO 30 KT. SEAS 8 TO 15 FT.



.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM OVER FORECAST 

WATERS N OF 60N BETWEEN 49W AND 65W AND WITHIN 240 NM OF 52N53W. 

.24 HOUR FORECAST DENSE FOG N OF 56N BETWEEN 49W AND 57W AND 

FROM FROM 47N TO 56N BETWEEN 39W AND 53W. 

.48 HOUR FORECAST DENSE FOG FROM 55N TO 66N BETWEEN 51W AND 57W 

AND WITHIN 300 NM E AND SE OF A LINE FROM 54N42W TO 50N40W TO 

45N51W. 



.HIGH 42N49W 1026 MB MOVING E 15 KT. 

.24 HOUR FORECAST HIGH 41N39W 1026 MB. 

.48 HOUR FORECAST HIGH E OF THE FORECAST AREA. 



.HIGH 33N45W 1025 MB MOVING NW 10 KT. 

.24 HOUR FORECAST HIGH 36N48W 1024 MB. 

.48 HOUR FORECAST HIGH DISSIPATED. 



.HIGH 60N37W 1016 MB NEARLY STATIONARY. 

.24 HOUR FORECAST HIGH DISSIPATED. 



.FORECASTER VUKITS. 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 0000 UTC FRI AUG 26.

24 HOUR FORECAST VALID 0000 UTC SAT AUG 27.

48 HOUR FORECAST VALID 0000 UTC SUN AUG 28.



.WARNINGS.



...HURRICANE WARNING...

.TROPICAL STORM GASTON NEAR 22.8N 46.4W 997 MB AT 0300 UTC AUG

26 MOVING NW OR 320 DEG AT 15 KT. MAXIMUM SUSTAINED WINDS 55 KT

GUSTS 65 KT. TROPICAL STORM FORCE WINDS WITHIN 100 NM N

SEMICIRCLE...70 NM SE QUADRANT AND 30 NM SW QUADRANT. SEAS 12 FT

OR GREATER WITHIN 90 NM S SEMICIRCLE...150 NM NE QUADRANT AND

120 NM NW QUADRANT WITH SEAS TO 25 FT. ELSEWHERE WITHIN 300 NM

NE AND 120 NM SW SEMICIRCLES WINDS 20 TO 33 KT. SEAS 8 TO 12 FT.

REMAINDER OF AREA FROM 17N TO 27N BETWEEN 41W AND 50W WINDS 20

KT OR LESS. SEAS 8 TO 10 FT IN MIXED SWELL.

.24 HOUR FORECAST TROPICAL STORM GASTON NEAR 26.2N 50.7W.

MAXIMUM SUSTAINED WINDS 60 KT GUSTS 75 KT. TROPICAL STORM FORCE

WINDS WITHIN 130 NM NE QUADRANT...90 NM SE QUADRANT...40 NM SW

QUADRANT...AND 110 NM NW QUADRANT. WINDS 20 TO 33 KT AND SEAS 12

FT OR GREATER WITHIN 240 NM NE SEMICIRCLE AND 180 NM SW

SEMICIRCLE WITH SEAS TO 28 FT. ELSEWHERE N OF 20N FROM 44W TO

56W WINDS 20 KT OR LESS. SEAS TO 10 FT IN MIXED SWELL.

.48 HOUR FORECAST HURRICANE GASTON NEAR 28.6N 54.9W. MAXIMUM

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

WITHIN 140 NM NE QUADRANT...110 NM SE QUADRANT...70 NM SW

QUADRANT...AND 120 NM NW QUADRANT. WINDS 20 TO 33 KT AND SEAS 12

FT OR GREATER OVER FORECAST WATERS N OF 26N BETWEEN 51W AND 59W

WITH SEAS TO 31 FT. ELSEWHERE OVER FORECAST WATERS N OF 25N

BETWEEN 49W AND 61W WINDS 20 KT OR LESS. SEAS TO 10 FT IN MIXED

SWELL.

.72 HOUR FORECAST HURRICANE GASTON NEAR 30.5N 57.0W. MAXIMUM

SUSTAINED WINDS 90 KT GUSTS 110 KT.

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

.96 HOUR FORECAST HURRICANE GASTON NEAR 32.5N 57.0W. MAXIMUM

SUSTAINED WINDS 95 KT GUSTS 115 KT.

.120 HOUR FORECAST HURRICANE GASTON NEAR 34.5N 53.0W. MAXIMUM

SUSTAINED WINDS 95 KT GUSTS 115 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 LOW PRES NEAR 21.5N73W 1008 MB. WITHIN 150 NM NE

SEMICIRCLE OF LOW E TO SE WINDS 20 TO 30 KT. SEAS 10 TO 12 FT.

ELSEWHERE WITHIN 300 NM NE SEMICIRCLE OF LOW WINDS 20 TO 25 KT.

SEAS 8 TO 11 FT. 

.24 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR

23N76W 1007 MB. WITHIN 180 NM NE SEMICIRCLE OF LOW E TO SE WINDS

20 TO 30 KT. SEAS 8 TO 10 FT. 

.48 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR

25N78W 1007 MB. WITHIN 180 NM NE SEMICIRCLE OF LOW E TO SE WINDS

20 TO 30 KT. SEAS 8 TO 11 FT.



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



$$

.FORECASTER MCELROY. NATIONAL HURRICANE CENTER.

