

947 

FZNT01 KWBC 251546

HSFAT1



HIGH SEAS FORECAST FOR METAREA IV 

NWS OCEAN PREDICTION CENTER WASHINGTON DC 

1630 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS 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 1200 UTC AUG 25 

24 HOUR FORECAST VALID 1200 UTC AUG 26 

48 HOUR FORECAST VALID 1200 UTC AUG 27 



.WARNINGS. 



...GALE WARNING... 

.24 HOUR FORECAST NEW LOW 54N50W 1006 MB. WITHIN 640 NM SE AND 

840 NM SW QUADRANTS WINDS TO 25 KT. SEAS TO 8 FT.

.48 HOUR FORECAST LOW 54N45W 1005 MB. FROM 56N TO 60N BETWEEN 

41W AND 50W WINDS 25 TO 35 KT. SEAS TO 12 FT. ELSEWHERE WITHIN 

720 NM OF LOW CENTER WINDS TO 25 KT. SEAS TO 10 FT.



.SYNOPSIS AND FORECAST. 



.LOW 62N66W 1000 MB MOVING NW 10 KT. WITHIN 300 NM NE AND 720 NM 

SE QUADRANTS WINDS 20 TO 30 KT. SEAS 8 TO 15 FT.

.24 HOUR FORECAST LOW DISSIPATED AND CONDITIONS DIMINISHED.



.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 63N TO 67N 

BETWEEN 59W AND 63W AND FROM 60N TO 62N BETWEEN 51W AND 55W.

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

AND FROM 60N TO 63N BETWEEN 50W AND 55W AND FROM 46N TO 56N 

BETWEEN 44W AND 54W.

.48 HOUR FORECAST DENSE FOG FROM 63N TO 67N BETWEEN 56W AND 62W 

AND FROM 55N TO 63N BETWEEN 52W AND 55W AND FROM 42N TO 50N 

BETWEEN 44W AND 52W AND FROM 50N TO 55N E OF 41W.



.HIGH 40N63W 1023 MB NEARLY STATIONARY.

.24 HOUR FORECAST HIGH DISSIPATED.



.HIGH 42N51W 1025 MB MOVING E 15 KT.

.24 HOUR FORECAST HIGH 42N44W 1026 MB.

.48 HOUR FORECAST HIGH 39N38W 1026 MB.



.HIGH 34N45W 1024 MB NEARLY STATIONARY.

.24 HOUR FORECAST LITTLE CHANGE.

.48 HOUR FORECAST HIGH DISSIPATED.



.HIGH 61N36W 1015 MB NEARLY STATIONARY.

.24 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 1200 UTC THU AUG 25.

24 HOUR FORECAST VALID 1200 UTC FRI AUG 26.

48 HOUR FORECAST VALID 1200 UTC SAT AUG 27.



.WARNINGS.



...HURRICANE WARNING...

.TROPICAL STORM GASTON NEAR 20.4N 44.4W 992 MB AT 1500 UTC AUG

25 MOVING NW OR 315 DEG AT 15 KT. MAXIMUM SUSTAINED WINDS 60 KT

GUSTS 75 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 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 9 FT IN MIXED SWELL.

.24 HOUR FORECAST TROPICAL STORM GASTON NEAR 24.4N 48.2W.

MAXIMUM SUSTAINED WINDS 55 KT GUSTS 65 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 120 NM SW

SEMICIRCLE WITH SEAS TO 27 FT. ELSEWHERE WITHIN 360 NM OF CENTER

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

.48 HOUR FORECAST HURRICANE GASTON NEAR 27.1N 53.1W. MAXIMUM

SUSTAINED WINDS 65 KT GUSTS 80 KT. TROPICAL STORM FORCE WINDS

WITHIN 130 NM NE QUADRANT...90 NM SE QUADRANT...60 NM SW

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

FT OR GREATER WITHIN 300 NM NE AND 150 NM SW SEMICIRCLES WITH

SEAS TO 31 FT.  OVER FORECAST WATERS WITHIN 480 NM NE AND 300 NM

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

.72 HOUR FORECAST HURRICANE GASTON NEAR 29.4N 56.6W. MAXIMUM

SUSTAINED WINDS 80 KT GUSTS 100 KT.

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

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

SUSTAINED WINDS 90 KT GUSTS 110 KT.

.120 HOUR FORECAST HURRICANE GASTON NEAR 33.0N 57.0W. MAXIMUM

SUSTAINED WINDS 90 KT GUSTS 110 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 21N70.5W 1008 MB. WITHIN 150 NM NE AND E

QUADRANTS OF LOW SE TO S WINDS 25 TO 35 KT. SEAS 10 TO 13 FT.

ELSEWHERE WITHIN 240 NM NE SEMICIRCLE OF LOW WINDS 20 TO 25 KT.

SEAS 8 TO 11 FT. 

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

22N73W 1007 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 COBB. NATIONAL HURRICANE CENTER.

