

334 

FZNT01 KWBC 270331

HSFAT1



HIGH SEAS FORECAST FOR METAREA IV 

NWS OCEAN PREDICTION CENTER WASHINGTON DC 

0430 UTC SAT AUG 27 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS 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 27 

24 HOUR FORECAST VALID 0000 UTC AUG 28 

48 HOUR FORECAST VALID 0000 UTC AUG 29 



.WARNINGS. 



...GALE WARNING... 

.LOW 54N47W 1004 MB MOVING E 10 KT. FROM 57N TO 60N BETWEEN 42W 

AND 49W WINDS 25 TO 35 KT. SEAS 8 TO 12 FT. ELSEWHERE WITHIN 420 

NM N AND NE QUADRANTS AND BETWEEN 180 NM AND 540 NM S QUADRANT  

WINDS TO 25 KT. SEAS TO 9 FT. 

.24 HOUR FORECAST LOW 54N43W 1003 MB. WITHIN 360 NM N QUADRANT 

WINDS 25 TO 35 KT. SEAS 8 TO 12 FT. ELSEWHERE WITHIN 480 NM W  

QUADRANT WINDS TO 25 KT. SEAS TO 8 FT. 

.48 HOUR FORECAST LOW 55N35W 997 MB. OVER FORECAST WATERS WITHIN 

600 NM S QUADRANT...AND WITHIN 300 NM N AND W QUADRANTS WINDS 25 

TO 35 KT. SEAS 8 TO 12 FT.  



.SYNOPSIS AND FORECAST. 



.LOW 48N63W 1006 MB MOVING E 25 KT. OVER FORECAST WATERS WITHIN 

300 NM S AND SE QUADRANTS WINDS TO 25 KT. SEAS LESS THAN 8 FT. 

.24 HOUR FORECAST LOW 49N44W 1006 MB WITH A FRONT FROM CENTER TO 

46N48W TO 43N53W TO 42N61W. WITHIN 360 NM E AND SE OF THE FRONT 

WINDS 20 TO 30 KT. SEAS TO 10 FT. ELSEWHERE WITHIN 300 NM W AND 

NW OF THE FRONT WINDS TO 25 KT. SEAS LESS THAN 8 FT. 

.48 HOUR FORECAST LOW MERGED WITH LOW 55N35W NOTED ABOVE. 



.24 HOUR FORECAST NEW LOW 54N36W 1004 MB. EXCEPT WHERE NOTED 

ABOVE WITHIN 240 NM N AND NE QUADRANTS WINDS 20 TO 30 KT. SEAS 

TO 10 FT. 

.48 HOUR FORECAST LOW MERGED WITH LOW 55N35W NOTED ABOVE. 



.48 HOUR FORECAST EXCEPT AS NOTED BELOW WITH TROPICAL STORM  

GASTON OVER FORECAST WATERS S OF 36N BETWEEN 51W AND 59W WINDS 

20 TO 33 KT. SEAS 9 TO 18 FT. 



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

WATERS N OF 54N BETWEEN 49W AND 56W AND FROM 47N TO 59N BETWEEN 

37W AND 49W. 

.24 HOUR FORECAST DENSE FOG FROM 54N TO 66N BETWEEN 51W AND 58W 

AND WITHIN 360 NM E AND SE OF A LINE FROM 54N36W TO 50N39W TO 

45N52W. 

.48 HOUR FORECAST CONDITIONS IMPROVING. 



.HIGH 34N48W 1024 MB NEARLY STATIONARY. 

.24 HOUR FORECAST HIGH 32N43W 1023 MB. 

.48 HOUR FORECAST HIGH 31N42W 1023 MB. 



.HIGH 41N39W 1026 MB MOVING E 20 KT. 

.24 HOUR FORECAST HIGH E OF THE FORECAST AREA. 



.48 HOUR FORECAST HIGH 44N59W 1025 MB. 



.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 SAT AUG 27.

24 HOUR FORECAST VALID 0000 UTC SUN AUG 28.

48 HOUR FORECAST VALID 0000 UTC MON AUG 29.



.WARNINGS.



...HURRICANE WARNING...

.TROPICAL STORM GASTON NEAR 27.0N 50.8W 997 MB AT 0300 UTC AUG

27 MOVING NW OR 315 DEG AT 13 KT. MAXIMUM SUSTAINED WINDS 55 KT

GUSTS 65 KT. TROPICAL STORM FORCE WINDS WITHIN 130 NM NE

QUADRANT...80 NM SE QUADRANT...40 NM SW QUADRANT...AND 100 NM NW

QUADRANT. SEAS 12 FT OR GREATER WITHIN 240 NM NE SEMICIRCLE AND

120 NM SW SEMICIRCLE WITH SEAS TO 26 FT. ELSEWHERE WITHIN 300 NM

NE AND 150 NM SW SEMICIRCLES WINDS 20 TO 33 KT. SEAS 10 TO 12

FT. REMAINDER OF AREA N OF 22N BETWEEN 44W AND 56W WINDS 20 KT

OR LESS. SEAS TO 10 FT IN MIXED SWELL.

.24 HOUR FORECAST HURRICANE GASTON NEAR 29.2N 54.1W. MAXIMUM

SUSTAINED WINDS 70 KT GUSTS 85 KT. TROPICAL STORM FORCE WINDS

WITHIN 100 NM NW AND SE QUADRANTS...130 NM NE QUADRANT AND 60 NM

SW QUADRANT. SEAS 12 FT OR GREATER WITHIN 240 NM NW AND 120 NM

SE SEMICIRCLES WITH SEAS TO 30 FT. ELSEWHERE WITHIN 180 NM WINDS

20 TO 33 KT. SEAS 8 TO 12 FT. REMAINDER OF AREA N OF 25N BETWEEN

49W AND 61W WINDS 20 KT OR LESS. SEAS TO 11 FT IN MIXED SWELL.

.48 HOUR FORECAST HURRICANE GASTON NEAR 30.8N 55.7W. MAXIMUM

SUSTAINED WINDS 90 KT GUSTS 110 KT. TROPICAL STORM FORCE WINDS

WITHIN 140 NM NE QUADRANT...120 NM SE QUADRANT...90 NM SW

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

210 NM NW AND 150 NM SE SEMICIRCLES WITH SEAS TO 33 FT.

ELSEWHERE N OF 27N BETWEEN 51W AND 59W WINDS 20 TO 33 KT. SEAS

10 TO 12 FT. REMAINDER OF AREA N OF 27N BETWEEN 59W AND 63W

WINDS 20 KT OR LESS. SEAS TO 11 FT IN MIXED SWELL.

.72 HOUR FORECAST HURRICANE GASTON NEAR 31.8N 55.4W. MAXIMUM

SUSTAINED WINDS 95 KT GUSTS 115 KT.

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

.96 HOUR FORECAST HURRICANE GASTON NEAR 33.0N 52.0W. MAXIMUM

SUSTAINED WINDS 90 KT GUSTS 110 KT.

.120 HOUR FORECAST HURRICANE GASTON NEAR 35.0N 47.5W. MAXIMUM

SUSTAINED WINDS 80 KT GUSTS 100 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 23N75W 1009 MB. WITHIN 120 NM NE SEMICIRCLE

OF LOW E TO SE WINDS 20 TO 25 KT. SEAS TO 8 FT. 

.24 HOUR FORECAST LOW PRES NEAR 24N79W 1008 MB. WITHIN 180 NM NE

QUADRANT OF LOW E TO SE WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT. 

.48 HOUR FORECAST LOW PRES NEAR 25N81W 1007 MB. WINDS 20 KT OR

LESS. SEAS LESS THAN 8 FT.



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



$$

.FORECASTER MCELROY. NATIONAL HURRICANE CENTER.

