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NOAA>NWS>NCEP>OPC>Marine>Atlantic>High Seas>North Atlantic High Seas Forecast

North Atlantic High Seas Forecast

[Printable Version]   [Alt Link/Previous Versions]
FZNT01 KWBC 282234
HSFAT1

HIGH SEAS FORECAST FOR METAREA IV 
NWS OCEAN PREDICTION CENTER WASHINGTON DC 
2230 UTC SUN AUG 28 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS 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 1800 UTC AUG 28 
24 HOUR FORECAST VALID 1800 UTC AUG 29 
48 HOUR FORECAST VALID 1800 UTC AUG 30 

.WARNINGS. 

...HURRICANE WARNING...
.HURRICANE GASTON NEAR 30.8N 55.1W 962 MB AT 2100 UTC AUG 28
MOVING NW OR 320 DEG AT 4 KT. SEE MIAMI SECTION FOR DETAILS ON 
HURRICANE GASTON BELOW. OTHERWISE SEE SYNOPSIS AND FORECAST 
BELOW. 

...TROPICAL STORM WARNING...
.TROPICAL DEPRESSION EIGHT NEAR 31.8N 70.9W 1010 MB AT 2100 UTC
AUG 28 MOVING W OR 280 DEG AT 8 KT. MAXIMUM SUSTAINED WINDS 30
KT GUSTS 40 KT. FROM 31N TO 35N BETWEEN 74W AND 67W WINDS TO 30 
KT. SEAS TO 11 FT.  
.24 HOUR FORECAST TROPICAL STORM EIGHT NEAR 33.0N 73.9W. MAXIMUM
SUSTAINED WINDS 35 KT GUSTS 45 KT. TROPICAL STORM FORCE WINDS
WITHIN 0 NM S SEMICIRCLE...30 NM NE QUADRANT AND 20 NM NW
QUADRANT. SEAS 12 FT OR GREATER WITH SEAS TO 13 FT. FROM 31N TO 
36N BETWEEN 78W AND 70W WINDS 20 TO 33 KT. SEAS TO 10 FT.
.48 HOUR FORECAST TROPICAL STORM EIGHT NEAR 34.3N 75.4W. MAXIMUM
SUSTAINED WINDS 35 KT GUSTS 45 KT. TROPICAL STORM FORCE WINDS
WITHIN 20 NM NW AND SE QUADRANTS...30 NM NE QUADRANT AND 0 NM SW
QUADRANT. SEAS 12 FT OR GREATER WITH SEAS TO 16 FT. FROM 31N TO 
37N BETWEEN 71W AND 79W WINDS 20 TO 33 KT. SEAS TO 12 FT.  
.72 HOUR FORECAST TROPICAL STORM EIGHT NEAR 36.8N 72.4W. MAXIMUM
SUSTAINED WINDS 40 KT GUSTS 50 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST...DISSIPATED. 

...STORM WARNING... 
.24 HOUR FORECAST LOW 49N61W 1003 MB. WITHIN 360 NM S AND SE 
QUADRANTS WINDS 20 TO 30 KT. SEAS TO 9 FT. 
.48 HOUR FORECAST LOW 50N49W 986 MB. WITHIN 180 NM W AND 240 NM 
SW QUADRANTS WINDS 35 TO 50 KT. SEAS 8 TO 17 FT. ALSO WITHIN 360 
NM S SEMICIRCLE AND 300 NM NW AND 240 NM E QUADRANTS WINDS 25 TO 
40 KT. SEAS 8 TO 18 FT. 

...GALE WARNING... 
.LOW 53N38W 992 MB MOVING E 10 KT. FRONT FROM 49N35W TO 43N40W 
TO 40N45W TO 39N50W. WITHIN 360 NM NW AND 480 NM SW 
QUADRANTS...AND 240 NM E OF FRONT N OF 41N WINDS 25 TO 40 KT. 
SEAS 8 TO 14 FT. 
ELSEWHERE FROM 37N TO 58N E OF 53W WINDS 20 TO 30 KT. SEAS 8 TO 
12 FT. 
.24 HOUR FORECAST LOW 54N34W 987 MB. WITHIN 360 NM W AND SW 
QUADRANTS WINDS 30 TO 45 KT. SEAS 11 TO 23 FT. ALSO FROM 45N TO 
60N E OF 44W WINDS 20 TO 30 KT. SEAS 8 TO 18 FT. 
.48 HOUR FORECAST LOW E OF AREA WITH CONDITIONS DIMINISHED. 

.SYNOPSIS AND FORECAST. 

.24 HOUR FORECAST N OF 63N BETWEEN 54W AND 58W WINDS TO 25 KT. 
SEAS TO 8 FT. 
.48 HOUR FORECAST LOW 66N52W 999 MB. WITHIN 300 NM W AND SW 
QUADRANTS WINDS 20 TO 30 KT. SEAS 8 TO 12 FT. 

.EXCEPT AS NOTED BELOW WITH HURRICANE GASTON OVER FORECAST 
WATERS S OF 35N BETWEEN 51W AND 60W WINDS 20 TO 33 KT. SEAS 8 TO 
18 FT.
.24 HOUR FORECAST EXCEPT AS NOTED BELOW WITH HURRICANE GASTON 
OVER FORECAST WATERS S OF 36N BETWEEN 51W AND 61W WINDS 20 TO 33 
KT. SEAS 8 TO 18 FT. 
.48 HOUR FORECAST EXCEPT AS NOTED BELOW WITH HURRICANE GASTON 
OVER FORECAST WATERS S OF 37N BETWEEN 47W AND 58W WINDS 20 TO 33 
KT. SEAS 11 TO 24 FT. 

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 52N TO 56N E 
OF 40W. 
.24 HOUR FORECAST CONDITIONS IMPROVED. 

.HIGH 45N63W 1026 MB MOVING SE 25 KT. 
.24 HOUR FORECAST HIGH 43N48W 1022 MB. 
.48 HOUR FORECAST HIGH E OF AREA. 

.24 HOUR FORECAST NEW HIGH 35N65W 1019 MB.
.48 HOUR FORECAST HIGH 32N66W 1019 MB. 

.FORECASTER ROWLAND. 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 1800 UTC SUN AUG 28.
24 HOUR FORECAST VALID 1800 UTC MON AUG 29.
48 HOUR FORECAST VALID 1800 UTC TUE AUG 30.

.WARNINGS.

...ATLC HURRICANE WARNING...
.HURRICANE GASTON NEAR 30.8N 55.1W 962 MB AT 2100 UTC AUG 28
MOVING NW OR 320 DEG AT 4 KT. MAXIMUM SUSTAINED WINDS 100 KT
GUSTS 120 KT. TROPICAL STORM FORCE WINDS WITHIN 120 NM E
SEMICIRCLE...50 NM SW QUADRANT AND 80 NM NW QUADRANT. SEAS 12 FT
OR GREATER WITHIN 210 NM NE QUADRANT...150 NM SE QUADRANT...120
NM SW QUADRANT...AND 180 NM NW QUADRANT WITH SEAS TO 29 FT.
ELSEWHERE WITHIN 210 NM OF CENTER WINDS 20 TO 33 KT.
SEAS 8 TO 12 FT. REMAINDER OF AREA OVER FORECAST WATERS N OF 27N
BETWEEN 50W AND 62W WINDS 20 KT OR LESS. SEAS TO 11 FT IN MIXED
SWELL.
.24 HOUR FORECAST HURRICANE GASTON N OF AREA NEAR 31.4N 55.5W.
MAXIMUM SUSTAINED WINDS 100 KT GUSTS 120 KT. TROPICAL STORM
FORCE WINDS WITHIN 130 NM NE QUADRANT...120 NM SE QUADRANT...80
NM SW QUADRANT...AND 110 NM NW QUADRANT. SEAS 12 FT OR GREATER
WITHIN 180 NM OF CENTER WITH SEAS TO 32 FT. ELSEWHERE N OF 27N
BETWEEN 49W AND 61W WINDS 20 TO 33 KT. SEAS 8 TO 12 FT.
.48 HOUR FORECAST HURRICANE GASTON N OF AREA NEAR 32.8N 52.6W.
MAXIMUM SUSTAINED WINDS 95 KT GUSTS 115 KT. TROPICAL STORM FORCE
WINDS WITHIN 140 NM NE QUADRANT...130 NM SE QUADRANT...100 NM SW
QUADRANT...AND 110 NM NW QUADRANT. SEAS 12 FT OR GREATER WITHIN
180 NM OF CENTER WITH SEAS TO 35 FT. ELSEWHERE OVER FORECAST
WATERS N OF 27N BETWEEN 46W AND 58W WINDS 20 TO 33 KT. SEAS 8 TO
12 FT.
.72 HOUR FORECAST HURRICANE GASTON NEAR 34.9N 47.7W. MAXIMUM
SUSTAINED WINDS 85 KT GUSTS 105 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST HURRICANE GASTON NEAR 37.5N 40.5W. MAXIMUM
SUSTAINED WINDS 75 KT GUSTS 90 KT.
.120 HOUR FORECAST TROPICAL STORM GASTON NEAR 37.5N 33.5W.
MAXIMUM SUSTAINED WINDS 60 KT GUSTS 75 KT.

...GULF OF MEXICO TROPICAL STORM WARNING...
.TROPICAL DEPRESSION NINE NEAR 23.7N 81.7W 1009 MB AT 2100 UTC
AUG 28 MOVING W OR 270 DEG AT 8 KT. MAXIMUM SUSTAINED WINDS 30
KT GUSTS 40 KT. FROM 22N TO 27N E OF 85W NE TO E WINDS 20 TO 30
KT. SEAS TO 10 FT. 
.24 HOUR FORECAST TROPICAL STORM NINE NEAR 24.3N 85.4W. MAXIMUM
SUSTAINED WINDS 35 KT GUSTS 45 KT. TROPICAL STORM FORCE WINDS
WITHIN 30 NM N SEMICIRCLE AND 0 NM S SEMICIRCLE. ELSEWHERE
WITHIN 150 NM OF CENTER WINDS 20 TO 33 KT. SEAS 8 TO 12 FT.
.48 HOUR FORECAST TROPICAL STORM NINE NEAR 25.1N 87.6W. MAXIMUM
SUSTAINED WINDS 40 KT GUSTS 50 KT. TROPICAL STORM FORCE WINDS
WITHIN 50 NM NE QUADRANT...30 NM SE QUADRANT...0 NM SW
QUADRANT...AND 40 NM NW QUADRANT. SEAS 12 FT OR GREATER WITHIN
60 NM N SEMICIRCLE WITH SEAS TO 14 FT. ELSEWHERE WITHIN 210 NM
NE AND 120 NM SW SEMICIRCLES WINDS 20 TO 33 KT. SEAS 8 TO 12 FT.
.72 HOUR FORECAST TROPICAL STORM NINE NEAR 26.8N 87.4W. MAXIMUM
SUSTAINED WINDS 45 KT GUSTS 55 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST TROPICAL STORM NINE NEAR 29.0N 84.5W. MAXIMUM
SUSTAINED WINDS 45 KT GUSTS 55 KT.
.120 HOUR FORECAST TROPICAL STORM NINE NEAR 31.0N 80.0W. MAXIMUM
SUSTAINED WINDS 45 KT GUSTS 55 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.

.CARIBBEAN 24 HOUR FORECAST FROM 11N TO 14N BETWEEN 68W AND
75W NE TO E WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT.
.48 HOUR FORECAST FROM 11N TO 15N BETWEEN 70W AND 75W NE TO E
WINDS 20 TO 25 KT. SEAS TO 8 FT.

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

$$
.FORECASTER MCELROY. NATIONAL HURRICANE CENTER.


NOAA/ National Weather Service
National Centers for Environmental Prediction
NOAA Center for Weather and Climate Prediction (NCWCP)
Ocean Prediction Center
Mr. Darin Figurskey
Chief, Ocean Forecast Branch
NCWCP, W/NP41
5830 University Research Court
College Park, Maryland 20740-3818

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Page last modified:  Monday, July 25, 2016 12:55:28 UTC