High Seas Forecast
Issued by NWS

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000
FZNT01 KWBC 130354
HSFAT1

HIGH SEAS FORECAST FOR METAREA IV
NWS OCEAN PREDICTION CENTER WASHINGTON DC
0430 UTC WED DEC 13 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0000 UTC DEC 13
24 HOUR FORECAST VALID 0000 UTC DEC 14
48 HOUR FORECAST VALID 0000 UTC DEC 15

.WARNINGS.

...STORM WARNING...
.LOW E OF AREA 62N31W 962 MB MOVING SE 20 KT. WITHIN 240 NM NW
QUADRANT WINDS 35 TO 50 KT. SEAS 14 TO 26 FT. ELSEWHERE WITHIN
720 NM SW QUADRANT WINDS 30 TO 45 KT. SEAS 12 TO 28 FT.
.24 HOUR FORECAST LOW WELL E OF AREA. BETWEEN 60N AND A LINE
FROM 54N35W TO 59N46W WINDS 30 TO 45 KT. SEAS 10 TO 26 FT.
.48 HOUR FORECAST CONDITIONS E OF AREA.

...STORM WARNING...
.LOW INLAND 42N71W 989 MB MOVING NE 20 KT AND INTENSIFYING. W OF
A LINE FROM 31N70W TO 41N57W TO 45N60W WINDS 25 TO 40 KT. SEAS 9
TO 16 FT.
.12 HOUR FORECAST LOW INLAND 46N68W 980 MB. WITHIN 120 NM E OF A
FRONT FROM 46N63W TO 41N64W TO 36N65W WINDS 35 TO 50 KT. SEAS 12
TO 24 FT.
.24 HOUR FORECAST LOW INLAND 50N66W 966 MB. WITHIN 660 NM
NE...1140 NM SE...AND 960 NM SW QUADRANTS WINDS 30 TO 45 KT.
SEAS 12 TO 28 FT.
.48 HOUR FORECAST COMPLEX LOW WITH MAIN CENTER 57N60W 962 MB.
WITHIN 180 NM N OF A LINE FROM LOW CENTER TO 59N52W TO 58N45W
WINDS 40 TO 55 KT. SEAS 14 TO 26 FT. ELSEWHERE WITHIN 600 NM N
AND 840 NM E...AND 780 NM SE QUADRANTS WINDS 25 TO 40 KT. SEAS
10 TO 18 FT.

...STORM WARNING...
.36 HOUR FORECAST LOW 40N71W 1001 MB. WITHIN 360 NM SE AND 540
NM S QUADRANTS WINDS 25 TO 40 KT. SEAS 8 TO 14 FT.
.48 HOUR FORECAST LOW 44N55W 993 MB. WITHIN 120 NM E OF A FRONT
FROM LOW CENTER TO 38N63W WINDS 35 TO 50 KT. SEAS 18 TO 26 FT.
ELSEWHERE W OF A LINE FROM 32N63W TO 40N49W TO 47N46W WINDS 25
TO 35 KT. SEAS 8 TO 20 FT.

...GALE WARNING...
.LOW 39N51W 1012 MB MOVING NE 25 KT. WITHIN 420 NM E AND SE
QUADRANTS WINDS 25 TO 35 KT. SEAS 8 TO 13 FT. ELSEWHERE WITHIN
420 NM E AND SE OF A FRONT FROM 45N35W TO 43N46W TO LOW CENTER
TO 33N57W WINDS 20 TO 30 KT. SEAS TO 11 FT.
.24 HOUR FORECAST LOW 45N37W 1012 MB. WITHIN 420 NM SE
SEMICIRCLE WINDS 25 TO 35 KT. SEAS 10 TO 16 FT.
.48 HOUR FORECAST LOW AND ASSOCIATED CONDITIONS DISSIPATED.

...HEAVY FREEZING SPRAY WARNING...
.MODERATE TO HEAVY FREEZING SPRAY W OF A LINE FROM 53N52W TO
61N58W TO 67N55W.
.24 HOUR FORECAST LIGHT TO MODERATE FREEZING SPRAY W AND NW OF A
LINE FROM 55N55W TO 63N51W.
.48 HOUR FORECAST LIGHT TO MODERATE FREEZING SPRAY N OF 63N W OF
GREENLAND.

.SYNOPSIS AND FORECAST.

.48 HOUR FORECAST WITHIN 120 NM SE OF A FRONT FROM 44N35W TO
40N42W TO 34N50W WINDS 20 TO 30 KT. SEAS 8 TO 14 FT.

.DENSE FOG. 24 HOUR FORECAST VSBY OCCASIONALLY LESS THAN 1 NM
FROM 42N TO 52N BETWEEN 44W AND 58W.
.48 HOUR FORECAST CONDITIONS IMPROVED.

.HIGH 48N42W 1023 MB MOVING E 15 KT.
.24 HOUR FORECAST HIGH MOVED E OF AREA.

.HIGH 52N58W 1025 MB MOVING E 25 KT.
.24 HOUR FORECAST HIGH 52N37W 1025 MB.
.48 HOUR FORECAST HIGH MOVED E OF AREA.

.24 HOUR FORECAST NEW HIGH 62N58W 1021 MB.
.48 HOUR FORECAST HIGH DISSIPATED

.FORECASTER ACHORN. 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 0000 UTC WED DEC 13.
24 HOUR FORECAST VALID 0000 UTC THU DEC 14.
48 HOUR FORECAST VALID 0000 UTC FRI DEC 15.

.WARNINGS.

...GALE WARNING...
.ATLC COLD FRONT FROM 31N77W TO 28N81W. N OF 30N AND E OF FRONT
TO 72W SW TO W WINDS 30 TO 35 KT. SEAS 10 TO 12 FT. N OF 30N AND
W OF FRONT W TO NW WINDS 30 TO 35 KT. SEAS 10 TO 12 FT.
ELSEWHERE E OF FRONT AND W OF LINE FROM 31N70W TO 27N76W SW TO W
WINDS 20 TO 30 KT. SEAS TO 10 FT. ELSEWHERE W OF FRONT AND N OF
27N W TO NW WINDS 20 TO 30 KT. SEAS TO 11 FT.
.12 HOUR FORECAST COLD FRONT FROM 31N69W TO 25N80W. E OF FRONT
AND N OF LINE FROM 31N57W TO 26N64W TO 27N73W SW WINDS 20 TO 30
KT. SEAS 8 TO 14 FT. W OF FRONT AND N OF 27N TO 78W W TO NW
WINDS 20 TO 30 KT. SEAS 8 TO 14 FT.
.24 HOUR FORECAST COLD FRONT FROM 31N62W TO 22N78W. E OF FRONT
AND N OF LINE FROM 31N53W TO 28N60W SW WINDS 20 TO 25 KT. SEAS
TO 10 FT. W OF FRONT AND N OF LINE FROM 28N60W TO 25N74W WINDS
20 KT OR LESS. SEAS 8 TO 15 FT IN NW SWELL...HIGHEST NEAR 31N65W.
.36 HOUR FORECAST WEAKENING COLD FRONT FROM 31N57W TO 24N69W. N
OF LINE FROM 31N52W TO 24N68W TO 31N72W WINDS 20 KT OR LESS.
SEAS 8 TO 14 FT IN NW SWELL...HIGHEST NEAR 31N59W.
.48 HOUR FORECAST WEAKENING STATIONARY FRONT FROM 31N57W TO
25N69W. N OF LINE FROM 31N49W TO 23N61W TO 31N68W WINDS 20 KT OR
LESS. SEAS 8 TO 12 FT IN NW SWELL.

.SYNOPSIS AND FORECAST.

.ATLC E OF LINE FROM 31N53W TO 07N50W WINDS 20 KT OR LESS. SEAS
8 TO 10 FT IN NE SWELL.
.24 HOUR FORECAST N OF 21N E OF 40W WINDS 20 KT OR LESS. SEAS TO
10 FT IN MIXED NW AND E SWELL.
.48 HOUR FORECAST E OF LINE FROM 31N35W TO 23N43W TO 17N35W
WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN NE TO E SWELL.

.ATLC 36 HOUR FORECAST N OF 30N AND W OF 72W SW TO W WINDS 20 TO
25 KT. SEAS TO 8 FT.
.48 HOUR FORECAST N OF 30N BETWEEN 68W AND 76W WINDS 20 KT OR
LESS. SEAS 8 FT IN NW SWELL.

.CARIBBEAN STATIONARY FRONT FROM 20N75W TO 16N78W TO 11N80W TO
10N83W. S OF 18.5N W OF FRONT TO 84W N WINDS 20 TO 25 KT. SEAS
TO 10 FT.
.24 HOUR FORECAST DISSIPATING STATIONARY FRONT FROM 20N73W TO
16N78W TO 09N80W. S OF 16N W OF FRONT TO 83W N WINDS 20 TO 25
KT. SEAS TO 10 FT.
.36 HOUR FORECAST FRONT DISSIPATED. WINDS 20 KT OR LESS. SEAS
LESS THAN 8 FT.

.GULF OF MEXICO COLD FRONT FROM 27N83W TO 25N91W TO 25N97W. E OF
86W FROM 26N TO 28N WINDS 20 KT OR LESS. SEAS TO 8 FT.
.06 HOUR FORECAST COLD FRONT FROM 25N81W TO 24N89W TO 23N97W.
WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

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

$$
.FORECASTER MCELROY. NATIONAL HURRICANE CENTER.


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