

246 

FZNT01 KWBC 270945 CCA

HSFAT1



HIGH SEAS FORECAST FOR METAREA IV 

NWS OCEAN PREDICTION CENTER WASHINGTON DC 

1030 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS 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 0600 UTC AUG 27 

24 HOUR FORECAST VALID 0600 UTC AUG 28 

48 HOUR FORECAST VALID 0600 UTC AUG 29 



.WARNINGS. 



...GALE WARNING... 

.COMPLEX LOW WITH MEAN CENTER NEAR 54N44W 1004 MB MOVING E 10 

KT. FROM 57N TO 60N BETWEEN 42W AND 50W WINDS 25 TO 35 KT. SEAS 

8 TO 12 FT. ELSEWHERE WITHIN 480 NM N AND NE QUADRANTS AND 

BETWEEN 180 NM AND 480 NM S AND SE QUADRANTS WINDS TO 25 KT. 

SEAS TO 9 FT. 

.24 HOUR FORECAST LOW 53N43W 1002 MB. WITHIN 240 NM N QUADRANT 

WINDS 25 TO 35 KT. SEAS 8 TO 12 FT. ELSEWHERE WITHIN 360 NM N 

SEMICIRCLE AND 480 NM SW QUADRANT WINDS 20 TO 30 KT. SEAS TO 10 

FT. 

.48 HOUR FORECAST LOW 55N35W 993 MB. OVER FORECAST WATERS WITHIN 

360 NM NW AND 600 NM SW QUADRANTS WINDS 25 TO 35 KT. SEAS 8 TO 

13 FT. 



.SYNOPSIS AND FORECAST. 



.LOW 49N58W 1006 MB MOVING E 30 KT. OVER FORECAST WATERS WITHIN 

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

.24 HOUR FORECAST LOW 51N41W 1002 MB WITH A FRONT FROM CENTER TO 

45N46W TO 39N54W. WITHIN 360 NM E AND SE OF THE FRONT WINDS 20 

TO 30 KT. SEAS TO 10 FT.

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



.LOW 31N66W 1010 MB MOVING W 10 KT. OVER FORECAST WATERS WITHIN 

120 NM N SEMICIRCLE WINDS TO 25 KT. SEAS LESS THAN 8 FT. 

.24 HOUR FORECAST LOW 32N69W 1012 MB. WITHIN 180 NM N SEMICIRCLE 

WINDS TO 25 KT. SEAS LESS THAN 8 FT. 

.48 HOUR FORECAST LOW 32N73W 1013 MB. WITHIN 180 NM N SEMICIRCLE 

WINDS TO 25 KT. SEAS LESS THAN 8 FT. 



.48 HOUR FORECAST EXCEPT AS NOTED BELOW WITH TROPICAL STORM 

GASTON OVER FORECAST WATERS S OF 35N BETWEEN 52W AND 61W WINDS 

20 TO 33 KT. SEAS 9 TO 18 FT. 



.48 HOUR FORECAST OVER FORECAST WATERS N OF 61N BETWEEN 51W AND 

57W AREA OF N TO NW WINDS TO 25 KT. SEAS LESS THAN 8 FT.



.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM WITHIN 480 NM N OF 

A LINE FROM 51N35W TO 54N44W TO 60N65W AND FROM 43N TO 49N 

BETWEEN 44W AND 59W. 

.24 HOUR FORECAST DENSE FOG FROM 58N TO 66N BETWEEN 53W AND 60W 

AND OVER FORECAST WATERS E OF A LINE FROM 53N43W TO 49N41W TO 

46N44W. 

.48 HOUR FORECAST CONDITIONS IMPROVING. 



.HIGH 34N47W 1023 MB MOVING SE 05 KT. 

.24 HOUR FORECAST HIGH 32N41W 1021 MB. 

.48 HOUR FORECAST HIGH S OF THE FORECAST AREA. 



.HIGH 41N37W 1026 MB MOVING E 15 KT. 

.24 HOUR FORECAST HIGH E OF THE FORECAST AREA. 



.HIGH 35N73W 1019 MB NEARLY STATIONARY.

.24 HOUR FORECAST HIGH DISSIPATED.



.48 HOUR FORECAST HIGH 43N57W 1023 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 0600 UTC SAT AUG 27.

24 HOUR FORECAST VALID 0600 UTC SUN AUG 28.

48 HOUR FORECAST VALID 0600 UTC MON AUG 29.



.WARNINGS.



...HURRICANE WARNING...

.TROPICAL STORM GASTON NEAR 27.9N 52.0W 995 MB AT 0900 UTC AUG

27 MOVING NW OR 310 DEG AT 13 KT. MAXIMUM SUSTAINED WINDS 55 KT

GUSTS 65 KT. TROPICAL STORM FORCE WINDS WITHIN 130 NM NE...80 NM

SE...40 NM SW AND 100 NM NW QUADRANTS. SEAS 12 FT OR GREATER

WITHIN 240 NM NE...120 NM SE...150 NM SW AND 180 NM NW QUADRANTS

WITH SEAS TO 27 FT. ELSEWHERE WITHIN 240 NM NE AND 180 NM SW

SEMICIRCLES WINDS 20 TO 33 KT. SEAS 10 TO 12 FT. REMAINDER OF

AREA OVER FORECAST WATERS N OF 24N BETWEEN 45W AND 56W WINDS 20

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

.24 HOUR FORECAST HURRICANE GASTON NEAR 29.9N 55.0W. MAXIMUM

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

WITHIN 130 NM NE...110 NM SE...80 NM SW AND 100 NM NW QUADRANTS.

SEAS 12 FT OR GREATER WITHIN 210 NM AND 150 NM S SEMICIRCLES

WITH SEAS TO 32 FT. ELSEWHERE WITHIN 180 NM OF CENTER WINDS 20

TO 33 KT. SEAS 10 TO 12 FT. REMAINDER OF AREA OVER FORECAST

WATERS N OF 26N BETWEEN 49W AND 61W WINDS 20 KT OR LESS. SEAS TO

11 FT IN MIXED SWELL.

.48 HOUR FORECAST HURRICANE GASTON NEAR 31.2N 56.8W. MAXIMUM

SUSTAINED WINDS 85 KT GUSTS 105 KT. TROPICAL STORM FORCE WINDS

WITHIN 140 NM NE...130 NM SE...100 NM SW AND 110 NM NW

QUADRANTS. SEAS 12 FT OR GREATER OVER FORECAST WATERS WITHIN 180

NM S SEMICIRCLE WITH SEAS TO 36 FT. ELSEWHERE OVER FORECAST

WATERS WITHIN 210 NM OF CENTER 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 N OF AREA NEAR 32.5N 55.6W.

MAXIMUM SUSTAINED WINDS 90 KT GUSTS 110 KT.

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

.96 HOUR FORECAST HURRICANE GASTON NEAR 34.5N 50.5W. MAXIMUM

SUSTAINED WINDS 85 KT GUSTS 105 KT.

.120 HOUR FORECAST HURRICANE GASTON NEAR 37.0N 43.5W. MAXIMUM

SUSTAINED WINDS 75 KT GUSTS 90 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 23N77W 1009 MB. WITHIN 120 NM NE QUADRANT OF

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

.24 HOUR FORECAST LOW PRES NEAR 24N81W 1010 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 MUNDELL. NATIONAL HURRICANE CENTER.

