

001 

FZNT01 KWBC 242210

HSFAT1



HIGH SEAS FORECAST FOR METAREA IV 

NWS OCEAN PREDICTION CENTER WASHINGTON DC 

2230 UTC WED AUG 24 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS 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 24 

24 HOUR FORECAST VALID 1800 UTC AUG 25 

48 HOUR FORECAST VALID 1800 UTC AUG 26 



.WARNINGS. 



...GALE WARNING... 

.COMPLEX LOW WITH FIRST CENTER 63N63W 993 MB NEARLY STATIONARY 

AND SECOND CENTER 64N62W 997 MB MOVING NW 10 KT. WITHIN 240 NM 

NE OF A FRONT FROM FIRST CENTER TO SECOND CENTER TO 55N42W WINDS 

30 TO 45 KT. SEAS 10 TO 21 FT. ELSEWHERE WITHIN 360 NM NE AND 

1260 NM SE QUADRANTS OF FIRST CENTER WINDS 20 TO 30 KT. SEAS TO 

12 FT. .24 HOUR FORECAST LOW DISSIPATED. FROM 62N TO 67N BETWEEN 

51W AND 64W WINDS 20 TO 30 KT. SEAS 8 TO 14 FT. 

.48 HOUR FORECAST CONDITIONS DIMINISHED. 



.SYNOPSIS AND FORECAST. 



.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 62N TO 66N 

BETWEEN 58W AND 63W AND FROM 51N TO 56N BETWEEN 38W AND 43W. 

.24 HOUR FORECAST DENSE FOG FROM 62N TO 67N BETWEEN 58W AND 64W 

AND FROM 58N TO 63N BETWEEN 50W AND 55W AND FROM 50N TO 53N 

BETWEEN 52W AND 55W. 

.48 HOUR FORECAST DENSE FOG FROM 63N TO 67N BETWEEN 56W AND 61W 

AND FROM 47N TO 56N BETWEEN 40W AND 52W. 



.HIGH 40N69W 1026 MB MOVING NE 10 KT. 

.24 HOUR FORECAST HIGH 41N63W 1024 MB. 

.48 HOUR FORECAST HIGH DISSIPATED.



.HIGH 35N45W 1023 MB NEARLY STATIONARY. 

.24 HOUR FORECAST LITTLE CHANGE.

.48 HOUR FORECAST HIGH 36N48W 1023 MB. 



.HIGH 63N36W 1018 MB DRIFTING S. 

.24 HOUR FORECAST HIGH 61N37W 1015 MB. 

.48 HOUR FORECAST HIGH DISSIPATED. 



.24 HOUR FORECAST NEW HIGH 42N50W 1024 MB.

.48 HOUR FORECAST HIGH 41N42W 1025 MB.



.24 HOUR FORECAST HIGH 34N37W 1024 MB.

.48 HOUR FORECAST HIGH DISSIPATED.



.FORECASTER HOLLEY. 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 24.

24 HOUR FORECAST VALID 1800 UTC THU AUG 25.

48 HOUR FORECAST VALID 1800 UTC FRI AUG 26.



.WARNINGS.



...TROPICAL STORM WARNING...

.TROPICAL STORM GASTON NEAR 17.4N 40.6W 990 MB AT 2100 UTC AUG

24 MOVING NW OR 315 DEG AT 14 KT. MAXIMUM SUSTAINED WINDS 60 KT

GUSTS 75 KT. TROPICAL STORM FORCE WINDS WITHIN 70 NM NE

QUADRANT...80 NM SE QUADRANT...40 NM SW QUADRANT...AND 50 NM NW

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

QUADRANTS...120 NM NE QUADRANT AND 60 NM SW QUADRANT WITH SEAS

TO 23 FT. ELSEWHERE WITHIN 150 NM N SEMICIRCLE AND 120 NM S

SEMICIRCLE WINDS 20 TO 33 KT. SEAS 8 TO 12 FT. REMAINDER OF AREA

WITHIN 300 NM N SEMICIRCLE AND 180 NM S SEMICIRCLE WINDS 20 KT

OR LESS. SEAS TO 10 FT IN MIXED SWELL.

.24 HOUR FORECAST TROPICAL STORM GASTON NEAR 21.0N 44.5W.

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

WINDS WITHIN 90 NM E SEMICIRCLE...40 NM SW QUADRANT AND 70 NM NW

QUADRANT. SEAS 12 FT OR GREATER WITHIN 180 NM NE QUADRANT...AND

120 NM ALL OTHER QUADRANTS WITH SEAS TO 29 FT. ELSEWHERE WITHIN

180 NM OF CENTER WINDS 20 TO 33 KT. SEAS 10 TO 12 FT. REMAINDER

OF AREA WITHIN 240 NM OF CENTER WINDS 20 KT OR LESS. SEAS TO 10

FT IN MIXED SWELL.

.48 HOUR FORECAST TROPICAL STORM GASTON NEAR 25.7N 49.2W.

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

WINDS WITHIN 130 NM NE QUADRANT...110 NM SE QUADRANT...70 NM SW

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

210 NM NE QUADRANT AND 180 NM ALL OTHER QUADRANTS WITH SEAS TO

33 FT. ELSEWHERE WITHIN 240 NM NE AND 120 NM SW SEMICIRCLES

WINDS 20 TO 33 KT. SEAS 10 TO 12 FT. REMAINDER OF AREA FROM 20N

TO 30N BETWEEN 44W AND 55W WINDS 20 KT OR LESS. SEAS TO 10 FT IN

MIXED SWELL.

.72 HOUR FORECAST HURRICANE GASTON NEAR 28.3N 54.6W. MAXIMUM

SUSTAINED WINDS 65 KT GUSTS 80 KT.

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

.96 HOUR FORECAST HURRICANE GASTON NEAR 30.1N 57.4W. MAXIMUM

SUSTAINED WINDS 80 KT GUSTS 100 KT.

.120 HOUR FORECAST HURRICANE GASTON NEAR 31.6N 58.2W. MAXIMUM

SUSTAINED WINDS 85 KT GUSTS 105 KT.



FORECAST WINDS IN AND NEAR ACTIVE TROPICAL CYCLONES SHOULD BE

USED WITH CAUTION DUE TO UNCERTAINTY IN FORECAST TRACK...SIZE

AND INTENSITY.



...GALE WARNING...



.ATLC LOW PRES NEAR 19N65W 1009 MB. FROM 18.5N TO 21.5N BETWEEN

63W AND 65W SE TO S WINDS 25 TO 35 KT. SEAS 9 TO 13 FT.

ELSEWHERE WITHIN 270 NM NE SEMICIRCLE WINDS 20 TO 30 KT. SEAS 8

TO 11 FT. REMAINDER OF AREA FROM 17.5N TO 18.5N BETWEEN 63W AND

65W S WINDS 20 TO 25 KT. SEAS TO 9 FT. TROPICAL CYCLONE

FORMATION POSSIBLE.

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

22N71W 1008 MB. WITHIN 150 NM NE SEMICIRCLE WINDS 25 TO 35 KT.

SEAS 8 TO 13 FT. ELSEWHERE WITHIN 270 NM NE SEMICIRCLE WINDS 20

TO 25 KT. SEAS 8 TO 11 FT. 

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

24N75W 1007 MB. WITHIN 90 NM NE SEMICIRCLE WINDS 25 TO 35 KT.

SEAS 8 TO 12 FT. ELSEWHERE WITHIN 240 NM NE AND 30 NM SW

SEMICIRCLES OF LOW WINDS 20 TO 30 KT. SEAS 8 TO 11 FT.



.SYNOPSIS AND FORECAST.



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



$$

.FORECASTER MCELROY. NATIONAL HURRICANE CENTER.

