

096 

FZNT01 KWBC 230934

HSFAT1



HIGH SEAS FORECAST FOR METAREA IV 

NWS OCEAN PREDICTION CENTER WASHINGTON DC 

1030 UTC TUE AUG 23 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS 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 23 

24 HOUR FORECAST VALID 0600 UTC AUG 24 

48 HOUR FORECAST VALID 0600 UTC AUG 25 



.WARNINGS. 



...GALE WARNING... 

.OVER FORECAST WATERS WITHIN 180 NM W OF A LINE FROM 67N55W TO 

61N50W AREA OF SE WINDS 25 TO 35 KT. SEAS 8 TO 13 FT. 

.24 HOUR FORECAST CONDITIONS ABSORBED BY LOW 62N61W DESCRIBED 

BELOW. 



...GALE WARNING... 

.LOW INLAND 51N61W 1000 MB MOVING N 25 KT. OVER FORECAST WATERS 

FROM 35N TO 54N BETWEEN 51W AND 70W WINDS TO 25 KT. SEAS TO 8 FT.

.18 HOUR FORECAST LOW 59N59W 996 MB. FRONT TO EXTEND FROM LOW 

CENTER TO 55N52W TO 47N48W. WITHIN 90 NM SW SEMICIRCLE...480 NM 

NE AND 360 NM E QUADRANTS...AND ELSEWHERE WITHIN 180 NM E OF THE 

FRONT WINDS 25 TO 35 KT. SEAS TO 11 FT.

.24 HOUR FORECAST LOW 62N61W 994 MB. FRONT TO EXTEND FROM LOW 

CENTER TO 54N48W TO 49N45W. WITHIN 90 NM SW SEMICIRCLE...360 NM 

NE AND 600 NM SE QUADRANTS...AND ELSEWHERE WITHIN 120 NM E OF 

THE FRONT WINDS 25 TO 40 KT. SEAS 8 TO 14 FT. 

.48 HOUR FORECAST LOW INLAND. FRONT TO EXTEND FROM 65N60W TO 

59N48W TO 59N43W. WITHIN 90 NM NE OF THE FRONT WINDS 25 TO 40 

KT. SEAS 8 TO 15 FT. 



.SYNOPSIS AND FORECAST. 



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

WATERS W OF A LINE FROM 67N59W TO 54N47W AND FROM 43N TO 54N 

BETWEEN 47W AND 60W.

.24 HOUR FORECAST DENSE FOG W OF A LINE FROM 67N59W TO 61N53W TO 

54N42W AND FROM 42N TO 54N BETWEEN 42W AND 50W. 

.48 HOUR FORECAST CONDITIONS E OF AREA. 



.HIGH 41N37W 1028 MB MOVING SE 05 KT. 

.24 HOUR FORECAST HIGH E OF AREA. 



.HIGH 33N48W 1025 MB MOVING NE 05 KT. 

.24 HOUR FORECAST HIGH DISSIPATED. 



.24 HOUR FORECAST HIGH 40N69W 1026 MB. 

.48 HOUR FORECAST HIGH 41N60W 1025 MB. 



.48 HOUR FORECAST HIGH 63N37W 1016 MB. 



.FORECASTER BELL. 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 TUE AUG 23.

24 HOUR FORECAST VALID 0600 UTC WED AUG 24.

48 HOUR FORECAST VALID 0600 UTC THU AUG 25.



.WARNINGS.



...HURRICANE WARNING...

.TROPICAL STORM GASTON WELL E OF AREA NEAR 13.2N 32.4W 1004 MB

AT 0900 UTC AUG 23 MOVING W NW OR 290 DEG AT 17 KT. MAXIMUM

SUSTAINED WINDS 45 KT GUSTS 55 KT. TROPICAL STORM FORCE WINDS

WITHIN 50 NM N SEMICIRCLE...40 NM SE AND 30 NM SW QUADRANTS.

SEAS 12 FT OR GREATER WITHIN 30 NM S SEMICIRCLE...60 NM NE AND

45 NM NW QUADRANTS WITH SEAS TO 14 FT.  SCATTERED TSTMS IN BANDS

WITHIN 240 NM OF CENTER.

.12 HOUR FORECAST TROPICAL STORM GASTON NEAR 13.9N 34.8W AT 1800

UTC AUG 23. MAXIMUM SUSTAINED WINDS 55 KT GUSTS 65 KT. TROPICAL

STORM FORCE WINDS WITHIN 60 NM NE...50 NM SE...40 NM SW AND 50

NM NW QUADRANTS. SEAS 12 FT OR GREATER WITHIN 120 NM E AND 90 NM

W SEMICIRCLES WITH SEAS TO 21 FT. SCATTERED TSTMS IN BANDS

WITHIN 240 NM OF CENTER.

.24 HOUR FORECAST HURRICANE GASTON NEAR 15.2N 37.9W. MAXIMUM

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

WITHIN 90 NM NE...60 NM SE...50 NM SW AND 70 NM NW QUADRANTS.

SEAS 12 FT OR GREATER WITHIN 150 NM NE AND 120 NM SW SEMICIRCLES

WITH SEAS TO 27 FT. ELSEWHERE WITHIN 180 NM OF CENTER WINDS 20

TO 33 KT. SEAS 8 TO 11 FT. REMAINDER FORECAST WATERS FROM 10N TO

18N E OF 40W WINDS 20 KT OR LESS. SEAS TO 10 FT PRIMARILY IN

MIXED SWELL. SCATTERED TSTMS IN BANDS WITHIN 240 NM OF CENTER.

.48 HOUR FORECAST HURRICANE GASTON NEAR 18.5N 43.0W. MAXIMUM

SUSTAINED WINDS 80 KT GUSTS 100 KT. TROPICAL STORM FORCE WINDS

WITHIN 100 NM NW AND SE QUADRANTS...130 NM NE AND 70 NM SW

QUADRANTS. SEAS 12 FT OR GREATER WITHIN 240 NM OF CENTER WITH

SEAS TO 33 FT. ELSEWHERE WITHIN 270 NM OF CENTER WINDS 20 TO 33

KT. SEAS 8 TO 11 FT. REMAINDER FORECAST WATERS WITHIN 300 NM N

AND 390 NM S SEMICIRCLES OF CENTER WINDS 20 KT OR LESS. SEAS TO

10 FT PRIMARILY IN MIXED SWELL. NUMEROUS SQUALLS WITHIN 240 NM

OF CENTER.

.72 HOUR FORECAST HURRICANE GASTON NEAR 22.6N 47.4W. MAXIMUM

SUSTAINED WINDS 80 KT GUSTS 100 KT.

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

.96 HOUR FORECAST HURRICANE GASTON NEAR 26.5N 51.5W. MAXIMUM

SUSTAINED WINDS 80 KT GUSTS 100 KT.

.120 HOUR FORECAST HURRICANE GASTON NEAR 29.4N 53.6W. 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.



.TROPICAL DEPRESSION FIONA NEAR 25.8N 63.4W 1010 MB AT 0900 UTC

AUG 23 MOVING W NW OR 290 DEG AT 11 KT. WINDS 20 TO 30 KT WITHIN

75 NM OF CENTER. SEAS TO 11 FT WITHIN 150 NM NE AND 90 NM SW

SEMICIRCLES OF CENTER.

.24 HOUR FORECAST TROPICAL DEPRESSION FIONA NEAR 27.1N 67.0W.

WINDS 20 TO 25 KT WITHIN 75 NM OF CENTER. SEAS TO 10 FT WITHIN 

90 NM OF CENTER.

.48 HOUR FORECAST POST TROPICAL REMNANT LOW FIONA NEAR 28.9N

69.5W 1015 MB. WINDS 20 TO 25 KT WITHIN 75 NM OF CENTER. SEAS TO

9 FT WITHIN 90 NM OF CENTER. 

.72 HOUR FORECAST POST TROPICAL REMNANT LOW FIONA NEAR 30.0N

70.8W. MAXIMUM SUSTAINED WINDS 25 KT GUSTS 35 KT.

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

.96 HOUR FORECAST POST TROPICAL REMNANT LOW FIONA NEAR 30.6N

71.6W. MAXIMUM SUSTAINED WINDS 25 KT GUSTS 35 KT.

.120 HOUR FORECAST...DISSIPATED.



.ATLC TROPICAL WAVE FROM 11N55W TO 21N55W WITH LOW PRES NEAR

16N55W 1009 MB. WITHIN 180 NM NE QUADRANT E TO SE WINDS 20 TO 25

KT. WITHIN 420 NM NE QUADRANT SEAS TO 9 FT. SCATTERED TSTMS

WITHIN 180 NM SE SEMICIRCLE OF LOW. POSSIBLE TROPICAL CYCLONE

FORMATION.  

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

18N62W 1008 MB. WITHIN 330 NM NE SEMICIRCLE OF LOW E TO SE 

WINDS 20 TO 25 KT. SEAS TO 10 FT. SCATTERED TSTMS WITHIN 150

NM OF LOW.   

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

21N68W 1006 MB. WITHIN 330 NM NE SEMICIRCLE OF LOW E TO SE 

WINDS 20 TO 25 KT. SEAS TO 10 FT. 



.CARIBBEAN FROM 10N TO 14N BETWEEN 74W AND 80W NE TO E WINDS

20 TO 30 KT. SEAS 8 TO 11 FT. ELSEWHERE FROM 10N TO 16N BETWEEN

75W AND 83W WINDS 20 KT OR LESS. SEAS TO 9 FT IN E SWELL.

.24 HOUR FORECAST FROM 10N TO 13N BETWEEN 74W AND 77W NE TO E

WINDS 20 TO 25 KT. SEAS TO 9 FT.

.42 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.



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



$$

.FORECASTER NELSON. NATIONAL HURRICANE CENTER.

