High Seas Forecast
Issued by NWS

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000
FZNT01 KWBC 172143
HSFAT1

HIGH SEAS FORECAST FOR METAREA IV
NWS OCEAN PREDICTION CENTER WASHINGTON DC
2230 UTC SUN DEC 17 2017

CCODE/1:31:04:01:00/AOW/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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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).

SECURITE

NORTH ATLANTIC NORTH OF 31N TO 67N AND WEST OF 35W

SYNOPSIS VALID 1800 UTC DEC 17
24 HOUR FORECAST VALID 1800 UTC DEC 18
48 HOUR FORECAST VALID 1800 UTC DEC 19

.WARNINGS.

...STORM WARNING...
.LOW 58N44W 955 MB MOVING NE 30 KT. FROM 90 NM TO 300 NM E AND
SE QUADRANT AND WITHIN 240 NM N AND NW QUADRANTS WINDS 45 TO 60
KT. SEAS 25 TO 40 FT EXCEPT 14 TO 22 FT N AND NW QUADRANTS.
ALSO WITHIN 540 NM S...360 NM N AND E...240 NM W QUADRANTS WINDS
30 TO 45 KT. SEAS 14 TO 28 FT HIGHEST SE QUADRANT. ELSEWHERE N
OF 49N E OF 51W WINDS 20 TO 30 KT. SEAS 9 TO 18 FT.
.24 HOUR FORECAST LOW 65N38W 967 MB. N OF 63N E OF 40W WINDS 25
TO 35 KT. SEAS 15 TO 22 FT.
.48 HOUR FORECAST LOW DISSIPATED WITH CONDITIONS DESCRIBED WITH
LOW 65N39W BELOW.

...STORM WARNING...
.24 HOUR FORECAST NEW LOW 63N41W 973 MB. FROM 58N TO 63N BETWEEN
44W AND 35W WINDS 25 TO 35 KT. SEAS 12 TO 17 FT.
.36 HOUR FORECAST LOW 64N37W 974 MB. BETWEEN 59N AND 63N FROM
42W TO 35W WINDS 35 TO 50 KT. SEAS 14 TO 23 FT.
.48 HOUR FORECAST LOW 65N39W 977 MB. WITHIN 360 NM S AND SE
QUADRANTS WINDS 30 TO 40 KT. SEAS 11 TO 22 FT.

...GALE WARNING...
.LOW 55N51W 975 MB MOVING SE 15 KT WILL TURN E. WITHIN 180 NM SW
OF A LINE FROM 54N49W TO 60N57W WINDS 30 TO 40 KT. SEAS 10 TO 18
FT. ELSEWHERE WITHIN 420 NM SW SEMICIRCLE WINDS 20 TO 30 KT.
SEAS 8 TO 14 FT.
.24 HOUR FORECAST LOW 57N41W 986 MB. WITHIN 300 NM E AND
NE...480 NM S AND SW QUADRANTS WINDS 20 TO 30 KT. SEAS 12 TO 19
FT.
.48 HOUR FORECAST LOW DISSIPATED E OF AREA. CONDITIONS DESCRIBED
WITH LOW 59N41W BELOW.

...GALE WARNING...
.LOW 52N40W 992 MB MOVING NE 40 KT. WITHIN 420 NM N AND E...780
NM S AND ELSEWHERE FROM 31N TO 50N BETWEEN 66W AND 48W WINDS 25
TO 35 KT. SEAS 12 TO 24 FT. ELSEWHERE FROM 70W TO 35W BETWEEN
31N AND 50N WINDS 20 TO 30 KT. SEAS 8 TO 17 FT.
.24 HOUR FORECAST LOW WELL E OF AREA 64N22W 984 MB. OVER
FORECAST WATERS FROM 31N TO 45N E OF 38W WINDS 20 TO 30 KT. SEAS
8 TO 14 FT.
.48 HOUR CONDITIONS WELL E OF AREA.

...GALE WARNING...
.LOW 62N57W 979 MB MOVING SE 20 KT. WITHIN 180 NM W AND NW
QUADRANTS AND BETWEEN 120 AND 240 NM E QUADRANT WINDS 20 TO 30
KT. SEAS 8 TO 15 FT HIGHEST W QUADRANT.
.12 HOUR FORECAST LOW 60N54W 983 MB. WITHIN 180 NM SW SEMICIRCLE
WINDS 25 TO 35 KT. SEAS 13 TO 20 FT.
.24 HOUR FORECAST LOW 58N52W 986 MB. WITHIN 300 NM S AND
SW...360 NM NW QUADRANTS WINDS 25 TO 35 KT. SEAS 9 TO 17 FT.
.48 HOUR FORECAST LOW 59N41W 990 MB. WITHIN 180 NM S SEMICIRCLE
WINDS 30 TO 45 KT. SEAS 10 TO 19 FT. ELSEWHERE FROM 49N TO 60N
BETWEEN 35W AND 51W WINDS 20 TO 30 KT. SEAS 9 TO 16 FT.

...GALE WARNING...
.24 HOUR FORECAST NEW LOW 37N68W 1016 MB. WITHIN 240 NM S
SEMICIRCLE WINDS 20 TO 30 KT. SEAS TO 8 FT.
.48 HOUR FORECAST LOW 39N53W 998 MB. WITHIN 240 NM SE AND 120 NM
NW SEMICIRCLES WINDS 30 TO 45 KT. SEAS 10 TO 17 FT. ELSEWHERE
WITHIN 240 NM N SEMICIRCLE AND 360 NM SE AND 540 NM SW QUADRANTS
WINDS 20 TO 30 KT. SEAS 8 TO 12 FT.

...HEAVY FREEZING SPRAY WARNING...
.MODERATE TO HEAVY FREEZING SPRAY OVER FORECAST WATERS FROM 47N
TO 50N W OF 61W...AND W OF A LINE FROM 54N56W TO 60N63W TO
64N58W TO 67N56W.
.24 HOUR FORECAST MODERATE TO HEAVY FREEZING SPRAY FROM 47N TO
50N W OF 59W AND W OF LINE FROM 50N52W TO 56N56W TO 60N60W TO
64N58W TO 67N56W.
.48 HOUR FORECAST MODERATE TO HEAVY FREEZING SPRAY W OF A LINE
FROM 53N52W TO 60N61W TO 67N56W.

.SYNOPSIS AND FORECAST.

.HIGH 31N73W 1025 MB MOVING SE 15 KT.
.24 HOUR FORECAST HIGH S OF AREA.

.24 HOUR FORECAST HIGH 43N63W 1022 MB.
.48 HOUR FORECAST HIGH 46N43W 1022 MB.

.FORECASTER SIENKIEWICZ. 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 DEC 17.
24 HOUR FORECAST VALID 1800 UTC MON DEC 18.
48 HOUR FORECAST VALID 1800 UTC TUE DEC 19.

.WARNINGS.

...CARIBBEAN GALE WARNING...
.FROM 11N TO 13N BETWEEN 73W AND 76W NE TO E WINDS 25 TO 30 KT.
SEAS 10 TO 13 FT. ELSEWHERE FROM 10N TO 17N BETWEEN 70W AND 81W
NE TO E WINDS 20 TO 25 KT. SEAS 8 TO 12 FT. REMAINDER AREA S OF
17N BETWEEN 76W AND 83W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN
NE TO E SWELL. N OF 14.5N BETWEEN 64W AND 70W...INCLUDING
CARIBBEAN PASSAGES... NE TO E WINDS 20 TO 25 KT. SEAS 8 TO 9
FT...EXCEPT LESS THAN 8 FT CARIBBEAN PASSAGES.
.12 HOUR FORECAST FROM 11N TO 13N BETWEEN 73W AND 76W NE TO E
WINDS 30 TO 35 KT. SEAS 10 TO 15 FT. ELSEWHERE FROM 09.5N TO 17N
BETWEEN 70W AND 83W...INCLUDING THE GULF OF VENEZUELA...NE TO E
WINDS 20 TO 30 KT. SEAS 8 TO 13 FT. N OF 14N BETWEEN 64W AND
70W...INCLUDING CARIBBEAN PASSAGES...NE TO E WINDS 20 TO 25 KT.
SEAS 8 TO 9 FT...EXCEPT LESS THAN 8 FT CARIBBEAN PASSAGES.
.24 HOUR FORECAST FROM 11N TO 13N BETWEEN 73W AND 76W NE TO E
WINDS 25 TO 30 KT. SEAS 10 TO 13 FT. ELSEWHERE FROM 10N TO 17N
BETWEEN 70W AND 82W NE TO E WINDS 20 TO 25 KT. SEAS 8 TO 12 FT
IN NE TO E SWELL. REMAINDER AREA S OF 17N BETWEEN 76W AND 83W
WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN NE TO E SWELL.
.36 HOUR FORECAST FROM 11N TO 12N BETWEEN 74W AND 76W NE TO E
WINDS 30 TO 35 KT. SEAS 10 TO 13 FT. ELSEWHERE FROM 10N TO 17.5N
BETWEEN 69W AND 82W...INCLUDING THE GULF OF VENEZUELA...NE TO E
WINDS 20 TO 25 KT EXCEPT 25 TO 30 KT S OF 13N BETWEEN 74W AND
76W. SEAS 8 TO 12 FT...EXCEPT 10 TO 13 FT S OF 13N BETWEEN 74W
AND 76W. REMAINDER AREA S OF 18N BETWEEN 76W AND 83.5W WINDS 20
KT OR LESS. SEAS 8 TO 10 FT IN NE TO E SWELL.
.48 HOUR FORECAST FROM 11N TO 13N BETWEEN 73W AND 76W NE TO E
WINDS 25 TO 35 KT. SEAS 10 TO 14 FT. ELSEWHERE FROM 10N TO 17.5N
BETWEEN 70W AND 81W...INCLUDING THE GULF OF VENEZUELA...NE TO E
WINDS 20 TO 25 KT. SEAS 8 TO 12 FT. REMAINDER AREA S OF 18N
BETWEEN 76W AND 83W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN NE
TO E SWELL.

.SYNOPSIS AND FORECAST.

.ATLC COLD FRONT FROM 31N48W TO 25N60W TO 23N73W. N OF 30N W OF
FRONT TO 60W NW WINDS 20 TO 25 KT. SEAS 9 TO 11 FT. ELSEWHERE N
OF A LINE FROM 31N46W TO 27N55W TO 27N62W TO 31N64W WINDS 20 KT
OR LESS. SEAS 8 TO 11 FT IN NW SWELL...HIGHEST SEAS N OF 29N.
.24 HOUR FORECAST WEAKENING COLD FRONT FROM 31N40W TO 25N50W TO
23N60W. N OF A LINE FROM 31N35W TO 23N45W TO 23N52W TO 31N61W
WINDS 20 KT OR LESS. SEAS 8 TO 11 FT IN NW SWELL...HIGHEST SEAS
N OF 29N.
.48 HOUR FORECAST DISSIPATING COLD FRONT FROM 31N38W TO 25N42W.
N OF 21N E OF 52W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN NW
SWELL.

.ATLC FROM 15N TO 22N E OF 41W NE TO E WINDS 20 TO 25 KT. SEAS 8
TO 10 FT IN MIXED NE AND NW SWELL. ELSEWHERE E OF A LINE FROM
30N37W TO 20N46W TO 15N48W TO 11N42W TO 11N35W WINDS 20 KT OR
LESS. SEAS 8 TO 9 FT IN MIXED NE AND NW SWELL.
.24 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.ATLC S OF 21N BETWEEN 72W AND 74W...INCLUDING APPROACH TO
WINDWARD PASSAGE...NE TO E WINDS 20 TO 25 KT. SEAS LESS THAN
8 FT.
.24 HOUR FORECAST LITTLE CHANGE.
.48 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.CARIBBEAN N OF 18.5N BETWEEN 73W AND 82W...INCLUDING WINDWARD
PASSAGE...NE TO E WINDS 20 TO 25 KT. SEAS TO 8 FT.
.24 HOUR FORECAST N OF 18N BETWEEN 73W AND 83W...INCLUDING
WINDWARD PASSAGE...NE WINDS 20 TO 25 KT. SEAS 8 TO 9 FT...
HIGHEST SEAS BETWEEN CUBA AND JAMAICA.
.48 HOUR FORECAST N OF 18.5N BETWEEN 73W AND 76W...INCLUDING
WINDWARD PASSAGE...NE WINDS 20 TO 25 KT. SEAS TO 8 FT.

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

$$
.FORECASTER GR. NATIONAL HURRICANE CENTER.



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