High Seas Forecast
Issued by NWS

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000
FZNT01 KWBC 101016
HSFAT1

HIGH SEAS FORECAST FOR METAREA IV
NWS OCEAN PREDICTION CENTER WASHINGTON DC
1030 UTC SAT DEC 10 2016

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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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).

PAN PAN

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

SYNOPSIS VALID 0600 UTC DEC 10
24 HOUR FORECAST VALID 0600 UTC DEC 11
48 HOUR FORECAST VALID 0600 UTC DEC 12

.WARNINGS.

...HURRICANE FORCE WIND WARNING...
.LOW 55N48W 955 MB MOVING N 10 KT. OVER FORECAST WATERS WITHIN
240 NM S SEMICIRCLE AND WITHIN 300 NM N QUADRANT WINDS 45 TO 60
KT. SEAS 16 TO 30 FT. ELSEWHERE WITHIN 480 NM SE SEMICIRCLE AND
WITHIN 300 NM W AND NW QUADRANTS WINDS 35 TO 45 KT. SEAS 12 TO
20 FT. ALSO WITHIN 1500 NM SW...360 NM W...360 NM N...AND 480 NM
E QUADRANTS WINDS 25 TO 35 KT. SEAS 8 TO 16 FT.
.06 HOUR FORECAST LOW 56N47W 952 MB. WITHIN 180 NM NW AND N OF A
LINE FROM 56N51W TO 58N48W TO 59N43W TO 61N38W WINDS 50 TO 70
KT. SEAS 17 TO 27 FT.
.24 HOUR FORECAST LOW 58N48W 956 MB. WITHIN 300 NM S AND W OF A
FRONT TO EXTEND FROM 57N43W TO 55N49W TO 58N55W TO 67N55W AND
WITHIN 360 NM E QUADRANT WINDS 45 TO 60 KT. SEAS 20 TO 32 FT.
ELSEWHERE WITHIN 600 NM S SEMICIRCLE WINDS 35 TO 45 KT. SEAS 15
TO 25 FT. ALSO WITHIN 1020 NM SE...1560 NM SW...600 NM NW...AND
480 NM E QUADRANTS WINDS 25 TO 35 KT. SEAS 9 TO 18 FT.
.48 HOUR FORECAST LOW 61N50W 959 MB. WITHIN 420 NM SW SEMICIRCLE
WINDS 35 TO 45 KT. SEAS 17 TO 26 FT. ELSEWHERE WITHIN 660 NM OF
LOW CENTER WINDS 25 TO 35 KT. SEAS 10 TO 20 FT.

...STORM WARNING...
.LOW 48N38W 992 MB MOVING N 40 KT. OVER FORECAST WATERS WITHIN
240 NM E OF A FRONT FROM 52N38W TO LOW CENTER TO 41N43W WINDS 35
TO 45 KT. SEAS 12 TO 22 FT. ELSEWHERE WITHIN 960 NM SE QUADRANT
WINDS 25 TO 35 KT. SEAS 8 TO 17 FT.
.24 HOUR FORECAST LOW 63N35W 983 MB. N OF 52N E OF GREENLAND
WINDS 40 TO 55 KT. SEAS 18 TO 27 FT. ELSEWHERE N OF 63N E OF
GREENLAND WINDS 25 TO 40 KT. SEAS 14 TO 18 FT.
.48 HOUR FORECAST LOW AND CONDITIONS MOVED N OF AREA.

...STORM WARNING...
.24 HOUR FORECAST EXCEPT WHERE DESCRIBED ABOVE BY HURRICANE
FORCE WIND WARNING...OVER FORECAST WATERS FROM 45N TO 32N
BETWEEN 70W AND 47W WINDS 25 TO 35 KT. SEAS 8 TO 14 FT.
.42 HOUR FORECAST LOW 46N38W 996 MB. WITHIN 240 NM SE QUADRANT
WINDS 40 TO 50 KT. SEAS 12 TO 20 FT.
.48 HOUR FORECAST LOW E OF AREA 50N33W 987 MB. WITHIN 1200 NM SW
QUADRANT WINDS 25 TO 40 KT. SEAS 10 TO 20 FT.

...GALE WARNING...
.OVER ICE FREE FORECAST WATERS WITHIN 240 NM W OF A FRONT FROM
56N55W TO 63N56W TO 67N53W WINDS 35 TO 45 KT. SEAS 10 TO 18 FT.
ELSEWHERE WITHIN 300 NM W OF THE FRONT WINDS 25 TO 35 KT. SEAS 8
TO 12 FT.
.24 HOUR FORECAST CONDITIONS DESCRIBED ABOVE BY HURRICANE FORCE
WIND WARNING.

...HEAVY FREEZING SPRAY WARNING...
.MODERATE TO HEAVY FREEZING SPRAY OVER ICE FREE FORECAST WATERS
W OF A LINE FROM 55N59W TO 67N54W.
.24 HOUR FORECAST MODERATE TO HEAVY FREEZING SPRAY W OF A LINE
FROM 49N52W TO 56N56W TO 67N55W.
.48 HOUR FORECAST MODERATE TO HEAVY FREEZING SPRAY W OF A LINE
FROM 49N51W TO 59N56W TO 67N54W.

.SYNOPSIS AND FORECAST.

.48 HOUR FORECAST OVER FORECAST WATERS W OF A LINE FROM 31N73W
TO 41N68W WINDS 20 TO 30 KT. SEAS LESS THAN 8 FT.

.48 HOUR FORECAST HIGH 35N63W 1032 MB.

.48 HOUR FORECAST HIGH 40N65W 1030 MB.

.FORECASTER SOMMERVILLE. 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 DEC 10.
24 HOUR FORECAST VALID 0600 UTC SUN DEC 11.
48 HOUR FORECAST VALID 0600 UTC MON DEC 12.

.WARNINGS.

...GULF OF MEXICO GALE WARNING...
.S OF 21N W OF 95W NW WINDS 30 TO 40 KT. SEAS 13 TO 19 FT.
ELSEWHERE FROM 22N TO 26N W OF 81W...INCLUDING THE STRAITS OF
FLORIDA AND ENTRANCE TO YUCATAN CHANNEL...NE WINDS 20 TO 25 KT
EXCEPT 25 TO 30 KT W OF 89W. SEAS 8 TO 11 FT...EXCEPT 10 TO 14
FT W OF 89W S OF 24N.
.18 HOUR FORECAST S OF 21N W OF 95W NW WINDS 25 TO 30 KT. SEAS 9
TO 13 FT. ELSEWHERE FROM 22N TO 25.5N W OF 81W...INCLUDING THE
STRAITS OF FLORIDA AND ENTRANCE TO YUCATAN CHANNEL...NE WINDS 20
TO 25 KT. SEAS 8 TO 10 FT...EXCEPT 9 TO 11 FT S OF 22N W OF 94W.
.24 HOUR FORECAST S OF 21N W OF 95W NW WINDS 20 TO 25 KT. SEAS
8 TO 10 FT. ELSEWHERE FROM 22N TO 25N W OF 81W...INCLUDING
THE STRAITS OF FLORIDA...NE TO E WINDS 20 TO 25 KT. SEAS
8 TO 10 FT...HIGHEST W OF 92W AND IN STRAITS OF FLORIDA.
.30 HOUR FORECAST STRAITS OF FLORIDA E WINDS 20 TO 25 KT. SEAS 8
TO 10 FT. S OF 21N W OF 95W WINDS 20 KT OR LESS. SEAS 8 FT IN
NE SWELL.
.36 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.SYNOPSIS AND FORECAST.

.ATLC COLD FRONT FROM 31N64W TO 28N70W TO 26N76W AND STATIONARY
FRONT 23N82W. FROM 26N TO 28N W OF 73W N TO NE WINDS 20 TO 25
KT. SEAS 8 TO 9 FT.
.24 HOUR FORECAST COLD FRONT FROM 31N48W TO 26N65W THEN
WEAKENING STATIONARY FRONT TO 23N80W. FROM 25N TO 27N W OF 71W
NE TO E WINDS 20 TO 25 KT. SEAS 8 TO 9 FT E OF BAHAMAS TO 71W.
.48 HOUR FORECAST COLD FRONT FROM 31N42W TO 26N61W THEN
DISSIPATING STATIONARY FRONT TO 25N68W. FROM 23N TO 27N BETWEEN
64W AND 76W E TO SE WINDS 20 TO 25 KT. SEAS 8 TO 10 FT. FROM
23N TO 26N BETWEEN 61W AND 64W WINDS 20 KT OR LESS. SEAS 8 FT
IN NE SWELL.

.ATLC S OF 13N BETWEEN 39W AND 60W NE TO E WINDS 20 TO 25 KT.
SEAS 8 TO 9 FT.
.24 HOUR FORECAST S OF 13N BETWEEN 45W AND 61W NE TO E WINDS
20 TO 25 KT. SEAS 8 TO 9 FT. ELSEWHERE S OF LINE FROM 21N35W TO
19N48W TO 14N61W WINDS 20 KT OR LESS. SEAS 8 FT IN MIXED N AND E
SWELL.
.30 HOUR FORECAST S OF 13N E OF 58W NE TO E WINDS 20 TO 25 KT.
SEAS 8 TO 10 FT...HIGHEST BETWEEN 51W AND 56W. ELSEWHERE S OF
LINE FROM 21N35W TO 20N49W TO 15N61W WINDS 20 KT OR LESS. SEAS 8
TO 9 FT IN E SWELL...EXCEPT IN MIXED N AND E SWELL E OF 44W.
.48 HOUR FORECAST FROM 13N TO 22N BETWEEN 48W AND 68W AND S OF
13N BETWEEN 38W AND 52W NE TO E WINDS 20 TO 25 KT. SEAS 8 TO 9
FT.

.ATLC 12 HOUR FORECAST S OF 21N BETWEEN 71.5W AND 74W...
...INCLUDING APPROACH TO WINDWARD PASSAGE...NE WINDS 20 TO 25
KT. SEAS LESS THAN 8 FT.
.24 HOUR FORECAST LITTLE CHANGE.
.48 HOUR FORECAST FROM 20N TO 23N BETWEEN 68W AND 75W...
INCLUDING APPROACH TO WINDWARD PASSAGE...NE TO E WINDS 20 TO 25
KT. SEAS 8 FT.

.ATLC N OF 29N E OF 45W WINDS 20 KT OR LESS. SEAS TO 8 FT IN NW
TO N SWELL.
.06 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.CARIBBEAN FROM 11N TO 16N BETWEEN 70W AND 75W...INCLUDING GULF
OF VENEZUELA...ALSO FROM 11N TO 13N BETWEEN 65W AND 70W AND FROM
11N TO 15N BETWEEN 75W AND 77W NE TO E WINDS 20 TO 25 KT. SEAS 8
TO 9 FT. WINDWARD PASSAGE NE WINDS 20 TO 25 KT. SEAS LESS THAN 8
FT.
.24 HOUR FORECAST FROM 11N TO 17N BETWEEN 70W AND
82W...INCLUDING GULF OF VENEZUELA...NE TO E WINDS 20 TO 25
KT...EXCEPT 25 TO 30 KT S OF 12.5N BETWEEN 74W AND 76W. SEAS 8
TO 11 FT...EXCEPT 10 TO 12 FT S OF 12.5N BETWEEN 74W AND 76W.
.48 HOUR FORECAST FROM 11N TO 17N BETWEEN 69W AND 84W AND FROM
13N TO 17N E OF 69W E WINDS 20 TO 25 KT...EXCEPT 25 TO 30 KT S
OF 12.5N BETWEEN 74W AND 76W. SEAS 8 TO 11 FT...EXCEPT 8 FT E OF
69W AND 10 TO 12 FT S OF 12.5N BETWEEN 74W AND 76W.

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

$$
.FORECASTER AGUIRRE. NATIONAL HURRICANE CENTER.



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