

623 

FZNT01 KWBC 250948

HSFAT1



HIGH SEAS FORECAST FOR METAREA IV 

NWS OCEAN PREDICTION CENTER WASHINGTON DC 

1030 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS 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 0600 UTC AUG 25 

24 HOUR FORECAST VALID 0600 UTC AUG 26 

48 HOUR FORECAST VALID 0600 UTC AUG 27 



.WARNINGS. 



...GALE WARNING... 

.LOW 62N59W 997 MB MOVING NW 15 KT WITH A FRONT FROM CENTER TO 

58N45W. WITHIN 180 NM N OF THE FRONT WINDS 25 TO 35 KT. SEAS 9

TO 18 FT. 

.24 HOUR FORECAST LOW DISSIPATED AND CONDITIONS DIMINISHED. 



...GALE WARNING... 

.24 HOUR FORECAST NEW LOW 53N52W 1005 MB WITH A FRONT FROM 

CENTER TO 50N62W TO 49N69W. OVER FORECAST WATERS WITHIN 480 NM S 

QUADRANT AND ELSEWHERE WITHIN 420 NM S OF THE FRONT WINDS TO 25 

KT. SEAS TO 8 FT. 

.48 HOUR FORECAST LOW 54N46W 1005 MB. WITHIN 420 NM N QUADRANT 

WINDS 25 TO 35 KT. SEAS 8 TO 12 FT. 



.SYNOPSIS AND FORECAST. 



.48 HOUR FORECAST NEW LOW 50N53W 1006 MB. OVER FORECAST WATERS 

FROM 45N TO 50N BETWEEN 39W AND 58W WINDS TO 25 KT. SEAS TO 8 

FT. 

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

WATERS N OF 62N AND W OF 51W. 

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

NM OF 53N52W. 

.48 HOUR FORECAST DENSE FOG N OF 58N BETWEEN 50W AND 57W AND 

FROM 47N TO 57N BETWEEN 38W AND 54W. 



.HIGH 40N62W 1024 MB MOVING E 30 KT. 

.24 HOUR FORECAST HIGH 42N47W 1025 MB. 

.48 HOUR FORECAST HIGH 41N39W 1025 MB. 



.HIGH 35N45W 1024 MB NEARLY STATIONARY. 

.24 HOUR FORECAST LITTLE CHANGE. 

.48 HOUR FORECAST HIGH DISSIPATED. 



.HIGH 62N36W 1017 MB MOVING S 05 KT. 

.24 HOUR FORECAST HIGH 59N36W 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 0600 UTC THU AUG 25.

24 HOUR FORECAST VALID 0600 UTC FRI AUG 26.

48 HOUR FORECAST VALID 0600 UTC SAT AUG 27.



.WARNINGS.



...HURRICANE WARNING...

.HURRICANE GASTON NEAR 19.5N 43.3W 988 MB AT 0900 UTC AUG 25

MOVING NW OR 310 DEG AT 15 KT. MAXIMUM SUSTAINED WINDS 65 KT

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

SEMICIRCLE...40 NM SW QUADRANT AND 50 NM NW QUADRANT.  SEAS 12

FT OR GREATER WITHIN 150 NM NE...90 NM SE...60 NM SW AND 120 NM

NW QUADRANTS WITH SEAS TO 28 FT. ELSEWHERE WITHIN 180 NM NE AND

120 NM SW 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 23.4N 46.9W.

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

WINDS WITHIN 100 NM NE...90 NM SE...40 NM SW AND 70 NM NW

QUADRANTS. SEAS 12 FT OR GREATER WITHIN 180 NM NE...120 NM SE...

90 NM SW AND 120 NM NW QUADRANTS WITH SEAS TO 30 FT. ELSEWHERE

WITHIN 240 NM N AND 150 NM S SEMICIRCLES WINDS 20 TO 33 KT. SEAS

8 TO 12 FT. REMAINDER OF AREA WITHIN 300 NM OF CENTER WINDS 20

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

.48 HOUR FORECAST TROPICAL STORM GASTON NEAR 26.7N 52.0W.

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

WINDS WITHIN 120 NM NE...90 NM SE...70 NM SW AND 100 NM NW

QUADRANTS. LITTLE CHANGE IN AREA OF SEAS 12 FT OR GREATER.

ELSEWHERE WITHIN 270 NM N AND 150 NM S SEMICIRCLES WINDS 20 TO

33 KT. SEAS 8 TO 12 FT. REMAINDER OF AREA WITHIN 300 NM OF

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

.72 HOUR FORECAST HURRICANE GASTON NEAR 29.1N 56.0W. MAXIMUM

SUSTAINED WINDS 70 KT GUSTS 85 KT.

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

.96 HOUR FORECAST HURRICANE GASTON NEAR 31.0N 58.0W. MAXIMUM

SUSTAINED WINDS 80 KT GUSTS 100 KT.

.120 HOUR FORECAST HURRICANE GASTON N OF AREA NEAR 32.5N 57.5W.

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 21N69W 1009 MB. WITHIN 90 NM NE QUADRANT OF

LOW SE WINDS 25 TO 35 KT. SEAS 10 TO 13 FT. ELSEWHERE WITHIN 210

NM NE SEMICIRCLE OF LOW WINDS 20 TO 25 KT. SEAS 8 TO 11 FT. 

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

22N75W 1008 MB. WITHIN 150 NM NE SEMICIRCLE OF LOW E TO SE WINDS

20 TO 30 KT. SEAS 8 TO 11 FT. 

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

24N77W 1007 MB. WITHIN 120 NM NE SEMICIRCLE 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.

