

430 

FZNT01 KWBC 240934

HSFAT1



HIGH SEAS FORECAST FOR METAREA IV 

NWS OCEAN PREDICTION CENTER WASHINGTON DC 

1030 UTC WED AUG 24 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS 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 24 

24 HOUR FORECAST VALID 0600 UTC AUG 25 

48 HOUR FORECAST VALID 0600 UTC AUG 26 



.WARNINGS. 



...STORM WARNING... 

.LOW 59N58W 995 MB MOVING NW 20 KT. WITHIN 240 NM NE OF A FRONT 

FROM LOW CENTER TO 56N51W TO 52N45W WINDS 30 TO 45 KT. SEAS 9 TO 

15 FT.

.12 HOUR FORECAST LOW 64N64W 993 MB. WITHIN 120 NM NE OF A LINE 

FROM 61N55W TO 58N47W WINDS 40 TO 50 KT. SEAS 12 TO 20 FT.

.24 HOUR FORECAST LOW INLAND. OVER FORECAST WATERS WITHIN 120 NM 

NE OF A FRONT TO EXTEND FROM 65N61W TO 61N51W TO 59N45W WINDS 25 

TO 40 KT. SEAS 9 TO 18 FT.

.48 HOUR FORECAST LOW WELL INLAND. WITHIN 60 NM NE OF A LINE 

FROM 63N54W TO 59N46W WINDS TO 25 KT. SEAS LESS THAN 8 FT. 



.SYNOPSIS AND FORECAST. 



.48 HOUR FORECAST OVER FORECAST WATERS W OF A LINE FROM 50N45W 

TO 47N46W TO 42N70W AREA OF SW WINDS TO 25 KT. SEAS LESS THAN 8 

FT. 



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

WATERS W OF A LINE FROM 67N58W TO 58N50W AND FROM 44N TO 58N 

BETWEEN 42W AND 52W. 

.24 HOUR FORECAST DENSE FOG N OF 64N W OF 58W. 

.48 HOUR FORECAST DENSE FOG N OF 65N W OF 58W AND WITHIN 180 NM 

NE OF A LINE FROM 51N55W TO 47N48W.



.HIGH 34N48W 1024 MB MOVING E 10 KT. 

.24 HOUR FORECAST HIGH DISSIPATED. 



.HIGH 39N73W 1025 MB MOVING NE 20 KT. 

.24 HOUR FORECAST HIGH 41N64W 1025 MB. 

.48 HOUR FORECAST HIGH 43N47W 1025 MB. 



.HIGH 63N40W 1021 MB MOVING NE 05 KT. 

.24 HOUR FORECAST HIGH 63N36W 1018 MB. 

.48 HOUR FORECAST HIGH 62N41W 1017 MB. 



.24 HOUR FORECAST HIGH 35N35W 1025 MB.

.48 HOUR FORECAST HIGH 35N41W 1023 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 WED AUG 24.

24 HOUR FORECAST VALID 0600 UTC THU AUG 25.

48 HOUR FORECAST VALID 0600 UTC FRI AUG 26.



.WARNINGS.



...HURRICANE WARNING...

.TROPICAL STORM GASTON NEAR 14.9N 38.6W 999 MB AT 0900 UTC AUG

24 MOVING W NW OR 290 DEG AT 15 KT. MAXIMUM SUSTAINED WINDS 60

KT GUSTS 75 KT. TROPICAL STORM FORCE WINDS WITHIN 60 NM N

SEMICIRCLE...40 NM SE AND 30 NM SW QUADRANTS. SEAS 12 FT OR

GREATER WITHIN 90 NM NW AND SE QUADRANTS...120 NM NE AND 60 NM

SW QUADRANTS WITH SEAS TO 21 FT. ELSEWHERE WITHIN 120 NM OF

CENTER WINDS 20 TO 33 KT. SEAS 8 TO 12 FT. REMAINDER WATERS

WITHIN 210 NM NE AND 150 NM SW SEMICIRCLES OF CENTER WINDS 20 KT

OR LESS. SEAS TO 9 FT PRIMARILY IN MIXED SWELL. 

.24 HOUR FORECAST HURRICANE GASTON NEAR 18.2N 42.9W. MAXIMUM

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

WITHIN 90 NM NW AND SE QUADRANTS...110 NM NE AND 60 NM SW

QUADRANTS. WINDS 20 TO 33 KT AND SEAS 12 FT OR GREATER ELSEWHERE

WITHIN 150 NM OF CENTER WITH SEAS TO 35 FT. REMAINDER OF WATERS

WITHIN 300 NM OF CENTER WINDS 20 KT OR LESS. SEAS TO 11 FT

PRIMARILY IN MIXED SWELL.

.48 HOUR FORECAST HURRICANE GASTON NEAR 22.9N 47.2W. MAXIMUM

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

WITHIN 140 NM NE...120 NM SE...70 NM SW AND 110 NM NW QUADRANTS.

WINDS 20 TO 33 KT AND SEAS 12 FT OR GREATER ELSEWHERE WITHIN 270

NM OF CENTER WITH SEAS TO 45 FT. REMAINDER OF WATERS WITHIN 480

NM OF CENTER WINDS 20 KT OR LESS. SEAS TO 11 FT PRIMARILY IN

MIXED SWELL. 

.72 HOUR FORECAST HURRICANE GASTON NEAR 26.9N 52.3W. MAXIMUM

SUSTAINED WINDS 70 KT GUSTS 85 KT.

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

.96 HOUR FORECAST HURRICANE GASTON NEAR 29.5N 55.5W. MAXIMUM

SUSTAINED WINDS 80 KT GUSTS 100 KT.

.120 HOUR FORECAST HURRICANE GASTON NEAR 31.5N 55.5W. 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.



.SYNOPSIS AND FORECAST.



.ATLC TROPICAL WAVE FROM 12N61W TO 21N63W WITH LOW PRES NEAR

17N61W 1009 MB. WITHIN 120 NM OF 20N60W E TO SE WINDS 20 TO 25

KT. SEAS TO 10 FT. SCATTERED TSTMS WITHIN 120 NM OF LOW.

TROPICAL CYCLONE FORMATION POSSIBLE.

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

20N69W 1008 MB. WITHIN 240 NM NE SEMICIRCLE OF CENTER E TO SE

WINDS 20 TO 30 KT. SEAS 8 TO 13 FT.

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

22.5N73W 1008 MB. WITHIN 240 NM NE AND 30 NM SW SEMICIRCLES OF

LOW WINDS 20 TO 30 KT. SEAS 8 TO 12 FT.



.ATLC REMNANT LOW OF FIONA NEAR 27N67W 1017 MB. WITHIN 60 NM NW

QUADRANT WINDS 20 KT OR LESS. SEAS TO 8 FT.

.12 HOUR FORECAST REMNANT LOW OF FIONA NEAR 28N68W 1017 MB.

WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.



.CARIBBEAN FROM 10.5N TO 13N BETWEEN 74W AND 77W NE WINDS 20

TO 25 KT. SEAS TO 9 FT.

.12 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.

