

575 

FZNT01 KWBC 250343

HSFAT1



HIGH SEAS FORECAST FOR METAREA IV 

NWS OCEAN PREDICTION CENTER WASHINGTON DC 

0430 UTC THU AUG 25 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS 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 25 

24 HOUR FORECAST VALID 0000 UTC AUG 26 

48 HOUR FORECAST VALID 0000 UTC AUG 27 



.WARNINGS. 



...GALE WARNING... 

.LOW 61N56W 997 MB MOVING NW 15 KT WITH A FRONT FROM CENTER TO 

60N52W TO 56N40W. WITHIN 240 NM N OF THE FRONT WINDS 25 TO 40 

KT. SEAS 10 TO 21 FT. 

.24 HOUR FORECAST LOW DISSIPATED. 



.SYNOPSIS AND FORECAST. 



.24 HOUR FORECAST NEW LOW 61N63W 1002 MB WITH A FRONT FROM 

CENTER TO 62N56W TO 58N46W. WITHIN 240 NM N AND NE OF THE FRONT 

WINDS 20 TO 30 KT. SEAS TO 10 FT. 

.48 HOUR FORECAST LOW DISSIPATED.



.24 HOUR FORECAST NEW LOW 53N57W 1006 MB. OVER FORECAST WATERS 

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

LESS THAN 8 FT. 

.48 HOUR FORECAST LOW 54N48W 1007 MB WITH A FRONT FROM CENTER TO 

51N52W TO 50N63W. WITHIN 480 NM N QUADRANT...BETWEEN 180 NM AND 

540 NM S QUADRANT...AND ELSEWHERE WITHIN 360 NM S OF THE FRONT 

WINDS 20 TO 30 KT. SEAS TO 10 FT. 



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

WATERS N OF 62N AND W OF 57W. 

.24 HOUR FORECAST DENSE FOG N OF 61N AND W OF 50W AND WITHIN 240 

NM OF 52N53W. 

.48 HOUR FORECAST DENSE FOG N OF 60N AND W OF 49W AND FROM 47N 

TO 57N BETWEEN 39W AND 59W. 



.HIGH 40N67W 1026 MB MOVING E 20 KT. 

.24 HOUR FORECAST HIGH 42N48W 1025 MB. 

.48 HOUR FORECAST HIGH 41N40W 1026 MB. 



.HIGH 35N44W 1026 MB NEARLY STATIONARY. 

.24 HOUR FORECAST LITTLE CHANGE. 

.48 HOUR FORECAST HIGH DISSIPATED.



.HIGH 62N36W 1018 MB MOVING S 10 KT. 

.24 HOUR FORECAST HIGH 60N37W 1016 MB. 

.48 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 THU AUG 25.

24 HOUR FORECAST VALID 0000 UTC FRI AUG 26.

48 HOUR FORECAST VALID 0000 UTC SAT AUG 27.



.WARNINGS.



...TROPICAL STORM WARNING...

.TROPICAL STORM GASTON NEAR 18.6N 42.1W 990 MB AT 0300 UTC AUG

25 MOVING NW OR 310 DEG AT 15 KT. MAXIMUM SUSTAINED WINDS 60 KT

GUSTS 75 KT. TROPICAL STORM FORCE WINDS WITHIN 80 NM E

SEMICIRCLE...40 NM SW QUADRANT AND 60 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 24 FT. ELSEWHERE

WITHIN 150 NM N AND 120 NM S SEMICIRCLES WINDS 20 TO 33 KT. SEAS

8 TO 12 FT. REMAINDER OF AREA WITHIN 300 NM N AND 180 NM S

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

.24 HOUR FORECAST TROPICAL STORM GASTON NEAR 22.3N 46.0W.

MAXIMUM SUSTAINED WINDS 50 KT GUSTS 60 KT. LITTLE CHANGE IN

RADIUS OF TROPICAL STORM FORCE WINDS AND SEAS 12 FT OR GREATER.

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 26.3N 51.0W.

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

WINDS WITHIN 130 NM NE...110 NM SE...70 NM SW AND 100 NM NW

QUADRANTS. SEAS 12 FT OR GREATER WITHIN 180 NM OF CENTER EXCEPT

210 NM NE QUADRANT WITH SEAS TO 32 FT.

.72 HOUR FORECAST HURRICANE GASTON NEAR 28.5N 55.5W. MAXIMUM

SUSTAINED WINDS 70 KT GUSTS 85 KT.

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

.96 HOUR FORECAST HURRICANE GASTON NEAR 30.5N 58.5W. MAXIMUM

SUSTAINED WINDS 80 KT GUSTS 100 KT.

.120 HOUR FORECAST HURRICANE GASTON NEAR 32.0N 59.5W. 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 20N67W 1009 MB. FROM 19N TO 21.5N BETWEEN

65W AND 67W SE TO S WINDS 25 TO 35 KT. SEAS 9 TO 13 FT.

ELSEWHERE WITHIN 270 NM NE AND 45 NM SW SEMICIRCLES OF LOW WINDS

20 TO 30 KT. SEAS 8 TO 11 FT.

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

22N73W 1008 MB. WITHIN 150 NM NE SEMICIRCLE WINDS 25 TO 35 KT.

SEAS 8 TO 13 FT. ELSEWHERE WITHIN 270 NM NE AND 45 NM

SW SEMICIRCLES OF LOW WINDS 20 TO 25 KT. SEAS 8 TO 11 FT. 

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

23N75W 1006 MB. WITHIN 120 NM NE SEMICIRCLE WINDS 25 TO 35 KT.

SEAS 8 TO 12 FT. ELSEWHERE WITHIN 270 NM NE AND 45 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 MUNDELL. NATIONAL HURRICANE CENTER.

