High Seas Forecast
Issued by NWS

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FZNT01 KWBC 272229 CCA
HSFAT1

HIGH SEAS FORECAST FOR METAREA IV
NWS OCEAN PREDICTION CENTER WASHINGTON DC
2230 UTC MON MAR 27 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1800 UTC MAR 27
24 HOUR FORECAST VALID 1800 UTC MAR 28
48 HOUR FORECAST VALID 1800 UTC MAR 29

.WARNINGS.

...HURRICANE FORCE WIND WARNING...
.LOW 48N41W 959 MB MOVING SE 10 KT THEN TURNING E 15 KT AFTER 24
HOURS. BETWEEN 60 NM AND 180 NM S QUADRANT AND BETWEEN 90 NM AND
360 NM SW AND W QUADRANTS S OF 50N WINDS 50 TO 65 KT. SEAS 25 TO
45 FT...HIGHEST IN S QUADRANT. ALSO WITHIN 180 NM SE...360 NM S
AND 480 NM SW AND W QUADRANTS WINDS 40 TO 55 KT. SEAS 15 TO 35
FT. ELSEWHERE OVER FORECAST WATERS WITHIN 600 NM W
SEMICIRCLE...660 NM S AND 300 NM E AND NE QUADRANTS WINDS 25 TO
40 KT. SEAS 16 TO 30 FT...EXCEPT S OF 48N W OF 52W 10 TO 18 FT.
.24 HOUR FORECAST LOW 46N36W 970 MB. WITHIN 360 NM S AND SW
QUADRANTS WINDS 40 TO 50 KT. SEAS 19 TO 37 FT. ELSEWHERE WITHIN
240 NM N SEMICIRCLE...FROM 36N TO 46N E OF 45W AND WITHIN 720 NM
W QUADRANT WINDS 25 TO 40 KT. SEAS 12 TO 32 FT...HIGHEST IN S
QUADRANT.
.48 HOUR FORECAST LOW E OF AREA 47N27W 982 MB WITH CONDITIONS AS
DESCRIBED WITH NEW LOW JUST E OF AREA 52N34W BELOW.


...STORM WARNING...
.WITHIN 120 NM W AND NW OF A FRONT FROM 57N42W TO 59N40W TO
60N35W W OF 40W WINDS 40 TO 55 KT. SEAS 12 TO 24 FT...HIGHEST
NEAR 59N43W. ELSEWHERE WITHIN 240 NM N...NW AND W OF FRONT WINDS
25 TO 40 KT. SEAS 8 TO 18 FT.
.24 HOUR FORECAST FRONT TO EXTEND FROM 56N45W TO 59N40W TO
61N35W. FROM 58N TO 61N WITHIN 90 NM W AND NW OF FRONT WINDS 40
TO 50 KT. SEAS 14 TO 23 FT. ELSEWHERE WITHIN 180 NM W AND NW OF
FRONT WINDS 25 TO 40 KT. SEAS 10 TO 18 FT.
.48 HOUR FORECAST FRONT DISSIPATED AND CONDITIONS AS DESCRIBED
WITH NEW LOW 52N34W BELOW.

...GALE WARNING...
.LOW 58N55W 1016 MB MOVING S 10 KT. WITHIN 120 NM W AND SW
QUADRANTS WINDS 25 TO 35 KT. SEAS IN ICE FREE WATERS 8 TO 11 FT.
ELSEWHERE OVER FORECAST WATERS N OF 54N W OF 55W WINDS TO 25 KT.
SEAS TO 8 FT.
.24 HOUR FORECAST LOW DISSIPATED WITH ASSOCIATED CONDITIONS
DIMINISHED.

...GALE WARNING...
.24 HOUR FORECAST FROM 31N TO 33N BETWEEN 56W AND 65W AREA OF E
WINDS 25 TO 35 KT. SEAS 9 TO 13 FT. ELSEWHERE FROM 31N TO 34N
BETWEEN 55W AND 68W WINDS TO 25 KT. SEAS TO 9 FT.
.48 HOUR FORECAST LOW 31N56W 1001 MB. WITHIN 180 NM N AND NW
QUADRANTS WINDS 25 TO 40 KT. SEAS 11 TO 18 FT. ELSEWHERE OVER
FORECAST WATERS S OF A LINE FROM 31N65W TO 40N54W WINDS 20 TO 30
KT. SEAS 8 TO 13 FT.

...GALE WARNING...
.48 HOUR FORECAST NEW LOW JUST E OF AREA 52N34W 982 MB. OVER
FORECAST WATERS FROM 37N TO 54N E OF 39W AREA OF N TO NW WINDS
25 TO 35 KT. SEAS 10 TO 21 FT...HIGHEST NEAR 39N35W.

...HEAVY FREEZING SPRAY WARNING...
.MODERATE TO HEAVY FREEZING SPRAY OVER ICE FREE FORECAST WATERS
W OF A LINE FROM 54N51W TO 46N46W AND E OF 59W. LIGHT TO
MODERATE FREEZING SPRAY ELSEWHERE W OF A LINE FROM 65N53W TO
57N52W TO 44N44W.
.24 HOUR FORECAST MODERATE TO HEAVY FREEZING SPRAY W AND NW OF A
LINE FROM 59N57W TO 65N53W.
.48 HOUR FORECAST MODERATE TO HEAVY FREEZING SPRAY W AND NW OF A
LINE FROM 59N58W TO 63N51W.

.SYNOPSIS AND FORECAST.

.EXCEPT WHERE NOTED IN WARNINGS SECTION OVER FORECAST WATERS E
OF A LINE FROM 64N39W TO 60N50W TO 50N60W TO 33N52W WINDS 20 TO
30 KT. SEAS 8 TO 15 FT...EXCEPT S OF 54N E OF 53W 12 TO 21 FT.
.24 HOUR FORECAST EXCEPT WHERE NOTED IN WARNINGS SECTION N OF A
LINE FROM 31N35W TO 39N50W TO 47N57W AND S OF 62N AND N OF 62N E
OF GREENLAND WINDS 20 TO 30 KT. SEAS 8 TO 17 FT...EXCEPT S OF
49N E OF 50W 16 TO 24 FT.
.48 HOUR FORECAST EXCEPT WHERE NOTED IN WARNINGS SECTION N OF A
LINE FROM 33N35W TO 50N57W AND S OF 65N WINDS 20 TO 30 KT. SEAS
10 TO 19 FT...EXCEPT N OF 61N 10 FT OR LESS.

.LOW 41N72W 1016 MB MOVING NE 20 KT NEXT 12 HOURS THEN TURNING
MORE SE. OVER FORECAST WATERS WITHIN 420 NM E AND NE QUADRANTS
WINDS TO 25 KT. SEAS TO 8 FT.
.12 HOUR FORECAST LOW 43N66W 1012 MB. WITHIN 360 NM SE AND 240
NM NE QUADRANTS WINDS 20 TO 30 KT. SEAS TO 10 FT.
.24 HOUR FORECAST LOW 42N61W 1012 MB. WITHIN 300 NM SE AND 240
NM N AND NE QUADRANTS WINDS 20 TO 30 KT. SEAS 8 TO 11 FT.
.48 HOUR FORECAST LOW DISSIPATED AND CONDITIONS MERGED WITH LOW
31N56W IN WARNINGS SECTION.

.48 HOUR FORECAST LOW 40N62W 1004 MB. WITHIN 240 NM NE QUADRANT
AND N OF 35N W OF 65W WINDS 20 TO 30 KT. SEAS TO 9 FT.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM OVER FORECAST
WATERS FROM 53N TO 60N E OF 43W AND N OF A LINE FROM 37N75W TO
40N65W.
.24 HOUR FORECAST DENSE FOG FROM 55N TO 61N E OF 44W AND FROM
40N TO 43N W OF 63W.
.48 HOUR FORECAST DENSE FOG FROM 56N TO 64N E OF 40W.

.HIGH 45N61W 1031 MB MOVING SE 25 KT.
.24 HOUR FORECAST HIGH 36N52W 1024 MB.
.48 HOUR FORECAST HIGH S OF AREA.

.HIGH 34N73W 1023 MB MOVING SW 05 KT.
.24 HOUR FORECAST HIGH 32N75W 1019 MB.
.48 HOUR FORECAST HIGH S OF AREA.

.FORECASTER BANCROFT. 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 MON MAR 27.
24 HOUR FORECAST VALID 1800 UTC TUE MAR 28.
48 HOUR FORECAST VALID 1800 UTC WED MAR 29.

.WARNINGS.

...ATLC GALE WARNING...
.ATLC BROAD LOW PRES CENTERED NEAR 24N68W 1008 MB. WITHIN 30 NM
EITHER SIDE OF LINE FROM 29.5N66W TO 28N69W TO 27N70W NE WINDS
30 TO 35 KT. SEAS 12 TO 18 FT. ELSEWHERE WITHIN 480 NM NE...270
NW...AND 180 NM SW QUADRANTS OF LOW WINDS 20 TO 30 KT. SEAS 9 TO
15 FT. REMAINDER OF AREA N OF LINE FROM 29N59W TO 24N64W TO
22N70W TO 22N74W TO 26N77W WINDS 20 KT OR LESS. SEAS 8 TO 12 FT
IN MIXED SWELL OUTSIDE BAHAMAS.
.24 HOUR FORECAST LOW PRES NEAR 29N64W 1004 MB. N OF LINE FROM
31N63W TO 29.5N65.5W N TO NE WINDS 30 TO 35 KT. SEAS 14 TO 17
FT. ELSEWHERE OVER FORECAST WATERS WITHIN 520 NM E SEMICIRCLE
AND 240 NM W SEMICIRCLE OF LOW WINDS 20 TO 30 KT. SEAS 8 TO 15
FT. REMAINDER OF AREA N OF LINE FROM 30N52W TO 24N58W TO 22N69W
TO 24N71W WINDS 20 KT OR LESS. SEAS 8 TO 12 FT IN IN MIXED SWELL.
.48 HOUR FORECAST LOW PRES 1001 MB N OF AREA NEAR 31.5N56W WITH
COLD FRONT FROM LOW TO 29N58W TO 26N64W. N OF 29N BETWEEN 60W
AND 61W NW TO N WINDS 30 TO 35 KT. SEAS 12 TO 14 FT. ELSEWHERE N
OF LINE FROM 41N44W TO 24N50W TO 24N57W TO 27N63W WINDS 20 TO 30
KT. SEAS 9 TO 16 FT. REMAINDER OF AREA N OF LINE FROM 17N35W TO
18N43W TO 22N55W TO 23N65W TO 24N67W WINDS 20 KT OR LESS. W OF
55W SEAS 8 TO 13 FT IN MIXED SWELL. E OF 55W SEAS 8 TO 17 FT IN
NW TO N SWELL...HIGHEST NE.

.SYNOPSIS AND FORECAST.

.ATLC COLD FRONT FROM 31N39W TO 30N44W TO 30N48W THEN STATIONARY
TO 31N54W. N OF 30N BETWEEN 40W AND 48W WINDS 20 KT OR LESS.
SEAS TO 9 FT IN NW SWELL.
.24 HOUR FORECAST WEAKENING COLD FRONT FROM 29N35W TO 28N42W
THEN WEAKENING STATIONARY TO 31N53W. N OF LINE FROM 26N35W TO
26N40W TO 30N52W WINDS 20 KT OR LESS. SEAS 8 TO 17 FT IN NW
SWELL...HIGHEST NE.
.48 HOUR FORECAST FRONTS DISSIPATED. CONDITIONS MERGED WITH
PARAGRAPH ABOVE.

.GULF OF MEXICO 06 HOUR FORECAST FROM 21N TO 22.5N BETWEEN 88W
AND 91W E WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT.
.12 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.
.24 HOUR FORECAST LITTLE CHANGE.
.30 HOUR FORECAST N OF 22N W OF 94W SW WINDS 20 TO 25 KT. SEAS
TO 8 FT. FROM 21N TO 22.5N BETWEEN 88W AND 91W E WINDS 20 TO 25
KT. SEAS LESS THAN 8 FT.
.48 HOUR FORECAST FROM 23N TO 29N BETWEEN 92W AND 95W SE WINDS
20 TO 25 KT. SEAS 8 TO 9 FT.

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

$$
.FORECASTER MCELROY. NATIONAL HURRICANE CENTER.


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