High Seas Forecast
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000
FZNT01 KWBC 110356
HSFAT1

HIGH SEAS FORECAST FOR METAREA IV
NWS OCEAN PREDICTION CENTER WASHINGTON DC
0430 UTC MON DEC 11 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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).

PAN PAN

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

SYNOPSIS VALID 0000 UTC DEC 11
24 HOUR FORECAST VALID 0000 UTC DEC 12
48 HOUR FORECAST VALID 0000 UTC DEC 13

.WARNINGS.

...HURRICANE FORCE WIND WARNING...
.INTENSIFYING LOW 54N55W 970 MB MOVING NE 30 KT. FRONT EXTENDS
FROM 53N50W TO 44N53W TO 34N61W. WITHIN 180 NM N OF A LINE FROM
LOW CENTER TO 52N45W WINDS 40 TO 50 KT. SEAS 12 TO 18 FT.
ELSEWHERE WITHIN 240 NM N...660 NM E...AND 540 NM S
QUADRANTS...AND 300 NM E OF THE FRONT WINDS 25 TO 40 KT. SEAS 10
TO 24 FT. ALSO WITHIN 1120 NM SW QUADRANT WINDS 20 TO 30 KT.
SEAS 8 TO 19 FT.
.12 HOUR FORECAST LOW 58N47W 958 MB. WITHIN 240 NM S QUADRANT
WINDS 50 TO 65 KT. SEAS 18 TO 34 FT.
.24 HOUR FORECAST LOW 61N38W 959 MB. WITHIN 240 NM S AND SE
QUADRANTS WINDS 50 TO 65 KT. SEAS 24 TO 44 FT. ALSO WITHIN 480
NM S SEMICIRCLE AND WITHIN 60 NM E OF THE GREENLAND COAST WINDS
35 TO 50 KT. SEAS 18 TO 34 FT. ELSEWHERE N OF 50N AND E OF 61W
WINDS 25 TO 40 KT. SEAS 10 TO 24 FT.
.48 HOUR FORECAST LOW E OF AREA 62N33W 962 MB. WITHIN 420 NM SW
QUADRANT WINDS 40 TO 50 KT. SEAS 22 TO 34 FT. ELSEWHERE 720 NM
SW AND 240 NM NW QUADRANTS WINDS 30 TO 45 KT. SEAS 12 TO 24 FT

...GALE WARNING...
.12 HOUR FORECAST LOW 50N58W 1002 MB. WITHIN 240 NM S AND SW
QUADRANTS WINDS 25 TO 35 KT. SEAS 8 TO 12 FT.
.24 HOUR FORECAST LOW ABSORBED AND CONDITIONS DESCRIBED ABOVE
WITH LOW 61N38W.

...GALE WARNING...
.24 HOUR FORECAST NEW LOW 41N52W 1012 MB. WITHIN 240 NM E AND SE
OF A FRONT FROM 47N35W TO 43N45W TO LOW CENTER TO 36N59W WINDS
20 TO 30 KT. SEAS 9 TO 15 FT.
.36 HOUR FORECAST LOW 47N35W 1012 MB. WITHIN 240 NM SE OF A
FRONT FROM LOW CENTER TO 39N51W WINDS 25 TO 35 KT. SEAS 9 TO 16
FT.
.48 HOUR FORECAST LOW WELL E OF AREA. WITHIN 300 NM E AND SE OF
A FRONT FROM 45N35W TO 42N46W TO 33N55W WINDS 20 TO 30 KT. SEAS
8 TO 14 FT.

...GALE WARNING...
.48 HOUR FORECAST LOW INLAND NEAR 43N70W 989 MB. W OF A LINE
FROM 31N70W TO 40N55W TO 48N60W WINDS 25 TO 35 KT. SEAS 8 TO 15
FT.

...HEAVY FREEZING SPRAY WARNING...
.LIGHT TO MODERATE FREEZING SPRAY OVER ICE FREE FORECAST WATERS
W OF A LINE FROM 56N57W TO 62N59W TO 67N54W.
.24 HOUR FORECAST MODERATE TO HEAVY FREEZING SPRAY W OF A LINE
FROM 53N51W TO 56N51W TO 60N59W TO 67N54W.
.48 HOUR FORECAST MODERATE TO HEAVY FREEZING SPRAY W OF A LINE
FROM 53N51W TO 61N59W TO 67N55W.

.SYNOPSIS AND FORECAST.

.LOW 59N37W 999 MB DRIFTING N. WITHIN 360 NM S AND 180 NM W
QUADRANTS WINDS 20 TO 30 KT. SEAS 10 TO 18 FT.
.24 HOUR FORECAST LOW DISSIPATED. CONDITIONS DESCRIBED ABOVE
WITH LOW 61N38W.

.OVER FORECAST WATERS FROM 31N TO 33N BETWEEN 36W AND 50W WINDS
TO 25 KT. SEAS TO 10 FT.
.24 HOUR FORECAST CONDITIONS DESCRIBED IN WARNINGS SECTION ABOVE.

.24 HOUR FORECAST LOW 45N60W 1010 MB. WITHIN 600 NM S QUADRANT
WINDS TO 25 KT. SEAS TO 10 FT.
.48 HOUR FORECAST LOW 52N39W 1010 MB. WITHIN 240 NM SE
SEMICIRCLE WINDS 20 TO 30 KT. SEAS 8 TO 12 FT.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 43N TO 54N
BETWEEN 44W AND 54W.
.24 HOUR FORECAST CONDITIONS IMPROVED.

.HIGH 36N36W 1031 MB NEARLY STATIONARY.
.24 HOUR FORECAST LITTLE CHANGE.
.48 HOUR FORECAST HIGH MOVED E OF AREA.

.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 MON DEC 11.
24 HOUR FORECAST VALID 0000 UTC TUE DEC 12.
48 HOUR FORECAST VALID 0000 UTC WED DEC 13.

.WARNINGS.

...GALE WARNING...
.CARIBBEAN STALLING COLD FRONT FROM 22N73W TO 09N80W. FROM 09.5N
TO 14N W OF 82W N WINDS 30 TO 40 KT. SEAS 10 TO 15 FT. ELSEWHERE
BOUNDED BY A LINE FROM 22N82W TO 20N77W TO 09N82W TO 17N87W TO
22N82W N WINDS 20 TO 30 KT. SEAS 8 TO 14 FT. SCATTERED TSTMS
WITHIN 150 NM OF FRONT.
.24 HOUR FORECAST STATIONARY FRONT FROM 20N73W TO 09N80W.
WITHIN AREA BOUNDED BY A LINE FROM 21N79W TO 20N75W TO 09N81W TO
17N85W TO 21N79W N WINDS 20 TO 30 KT. SEAS 8 TO 12 FT. SCATTERED
TSTMS WITHIN 120 NM OF FRONT.
.48 HOUR FORECAST WEAKENING STATIONARY FRONT FROM 20N73W TO
15N79W TO 09N78W. WITHIN AREA BOUNDED BY A LINE FROM 17N78W TO
11N82W TO 16N84W TO 17N78W N WINDS 20 TO 25 KT. SEAS TO 10 FT.

.SYNOPSIS AND FORECAST.

.ATLC COLD FRONT FROM 31N66W TO 22N73W THEN STATIONARY TO
20N75W. S OF 24N WITHIN 240 NM W OF FRONT N WINDS 20 TO 25 KT.
SEAS TO 9 FT. ELSEWHERE WITHIN AREA BOUNDED BY A LINE FROM
31N74W TO 31N66W TO 23N74W TO 31N74W WINDS 20 KT OR LESS. SEAS
TO 9 FT PRIMARILY NW SWELL.
.24 HOUR FORECAST STATIONARY FRONT FROM 31N60W TO 25N65W TO
20N73W. S OF 24N WITHIN 240 NM W OF FRONT N TO NE WINDS 20 TO 25
KT. SEAS TO 8 FT. ELSEWHERE S OF 28N WITHIN 240 NM W OF FRONT
WINDS 20 KT OR LESS. SEAS TO 8 FT PRIMARILY IN NW SWELL.
.30 HOUR FORECAST STATIONARY FRONT FROM 31N61W TO 20N73W. WINDS
20 KT OR LESS. SEAS LESS THAN 8 FT.

.ATLC TROUGH FROM 30N46W TO 22N46W. FROM 25N TO 30N BETWEEN 40W
AND 47W E TO SE WINDS 20 TO 25 KT. SEAS 9 TO 12 FT. ELSEWHERE
BOUNDED BY A LINE FROM 31N52W TO 31N35W TO 14N35W TO 25N51W TO
31N52W WINDS 20 KT OR LESS. SEAS TO 9 FT PRIMARILY IN MIXED
SWELL.
.24 HOUR FORECAST TROUGH FROM 30N57W TO 20N58W. WITHIN 150 NM OF
LINE FROM 29N47W TO 21N35W SE WINDS 20 TO 25 KT. SEAS TO 11 FT.
ELSEWHERE BOUNDED BY A LINE FROM 31N54W TO 31N42W TO 27N35W TO
12N35W TO 10N42W TO 31N54W WINDS 20 KT OR LESS. SEAS TO 9 FT
PRIMARILY IN MIXED N AND E SWELL.
.48 HOUR FORECAST TROUGH DISSIPATED. FROM 23N TO 27N E OF 38W E
WINDS 20 TO 25 KT. SEAS TO 9 FT. ELSEWHERE BOUNDED BY A LINE
FROM 31N51W TO 31N35W TO 14N35W TO 10N45W TO 31N51W WINDS 20 KT
OR LESS. SEAS TO 8 FT PRIMARILY IN MIXED N AND E SWELL.

.ATLC 42 HOUR FORECAST COLD FRONT FROM 31N81W TO 30N82W. N OF
29N WITHIN 390 NM E OF FRONT SW WINDS 20 TO 25 KT. SEAS TO 10
FT.
.48 HOUR FORECAST COLD FRONT FROM 31N76W TO 28N80W. N OF 27N W
OF FRONT W TO NW WINDS 20 TO 30 KT. N OF 28N SEAS 8 TO 12 FT. N
OF 28N WITHIN 270 NM E OF FRONT SW WINDS 20 TO 25 KT. SEAS 8 TO
12 FT.

.GULF OF MEXICO 36 HOUR FORECAST COLD FRONT FROM 30N84W TO
27N87W. N OF 28N BETWEEN 85W AND 90W W TO NW WINDS 20 TO 25 KT.
SEAS LESS THAN 8 FT.
.48 HOUR FORECAST COLD FRONT E OF AREA. FROM 26N TO 29N E OF
84W NW WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT.

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

$$
.FORECASTER NELSON. NATIONAL HURRICANE CENTER.


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