High Seas Forecast
Issued by NWS

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000
FZNT01 KWBC 210938
HSFAT1

HIGH SEAS FORECAST FOR METAREA IV
NWS OCEAN PREDICTION CENTER WASHINGTON DC
1030 UTC TUE APR 21 2015

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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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

SECURITE

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

SYNOPSIS VALID 0600 UTC APR 21
24 HOUR FORECAST VALID 0600 UTC APR 22
48 HOUR FORECAST VALID 0600 UTC APR 23

.WARNINGS.

...STORM WARNING...
.LOW 45N41W 977 MB NEARLY STATIONARY. OVER ICE FREE FORECAST
WATERS WITHIN 300 NM SW AND 360 NM NW QUADRANTS WINDS 45 TO 60
KT. SEAS 26 TO 38 FT. ELSEWHERE WITHIN 540 NM W SEMICIRCLE...AND
480 NM NE AND 420 NM SE QUADRANTS WINDS 30 TO 45 KT. SEAS 15 TO
30 FT.
.24 HOUR FORECAST LOW 45N41W 990 MB. WITHIN 420 NM NE...540 NM
SE...360 NM SW...AND 660 NM NW QUADRANTS WINDS 30 TO 45 KT. SEAS
13 TO 26 FT.
.48 HOUR FORECAST LOW E OF AREA 44N34W 994 MB. OVER FORECAST
WATERS WITHIN 480 NM SW AND 360 NM NW QUADRANTS WINDS 25 TO 40
KT. SEAS 12 TO 20 FT.

...GALE WARNING...
.LOW INLAND 42N74W 1000 MB MOVING E 20 KT. OVER FORECAST WATERS
WITHIN 540 NM NE AND 660 NM SE QUADRANTS WINDS 25 TO 40 KT. SEAS
9 TO 17 FT.
.24 HOUR FORECAST LOW 42N62W 1003 MB. FRONT TO EXTEND FROM LOW
CENTER TO 40N59W TO 32N59W. WITHIN 240 NM N AND NE QUADRANTS AND
180 NM E OF THE FRONT WINDS 25 TO 35 KT. SEAS 10 TO 16 FT.
.48 HOUR FORECAST LOW 43N56W 1004 MB. FRONT TO EXTEND FROM LOW
CENTER TO 40N50W TO 34N47W TO 31N50W. WITHIN 240 NM SW AND 120
NM NW QUADRANTS AND 90 NM NE AND E OF THE FRONT WINDS 20 TO 30
KT. SEAS TO 11 FT.

...GALE WARNING...
.OVER ICE FREE FORECAST WATERS FROM 58N TO 63N E OF 49W WINDS 25
TO 35 KT. SEAS 10 TO 15 FT.
.24 HOUR FORECAST N OF 64N AND E OF 37W WINDS 25 TO 40 KT. SEAS
8 TO 12 FT.
.48 HOUR FORECAST CONDITIONS DIMINISHED.

...GALE WARNING...
.48 HOUR FORECAST NEW LOW INLAND 45N70W 993 MB. OVER FORECAST
WATERS WITHIN 540 NM SE AND 780 NM SW QUADRANTS WINDS 25 TO 35
KT. SEAS TO 12 FT.

.SYNOPSIS AND FORECAST.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 50N TO 54N E
OF 40W AND OVER FORECAST WATERS W OF A LINE FROM 43N66W TO
40N69W.
.24 HOUR FORECAST DENSE FOG E OF A LINE FROM 59N35W TO 48N49W.
.48 HOUR FORECAST DENSE FOG OVER ICE FREE WATERS FROM 47N TO 58N
E OF 56W.

.LIGHT TO MODERATE FREEZING SPRAY OVER ICE FREE FORECAST WATERS
N OF 60N AND W OF 46W.
.24 HOUR FORECAST CONDITIONS IMPROVING.

.HIGH 45N58W 1030 MB MOVING N 15 KT.
.24 HOUR FORECAST HIGH DISSIPATED.

.FORECASTER BELL. 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 TUE APR 21.
24 HOUR FORECAST VALID 0600 UTC WED APR 22.
48 HOUR FORECAST VALID 0600 UTC THU APR 23.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.ATLC COLD FRONT FROM 31N39W TO 28N50W THEN FRONTAL TROUGH TO
31N66W. N OF 30N BETWEEN 42W AND 52W WINDS 20 KT OR LESS. SEAS
TO 9 FT IN NW SWELL.
.24 HOUR FORECAST FRONTAL TROUGH FROM 28N35W TO 25N45W TO 25N50W
THEN WARM FRONT TO 31N60W. N OF FRONTS WINDS 20 KT OR LESS. SEAS
8 TO 13 FT IN N SWELL...HIGHEST SEAS N OF 30N E OF 50W.
.48 HOUR FORECAST NEW COLD FRONT FROM 31N55W TO 26N67W. N OF 21N
E OF 57W WINDS 20 KT OR LESS. SEAS 8 TO 12 FT IN N
SWELL...HIGHEST
SEAS NEAR 31N35W.

.ATLC SE OF A LINE FROM 15N35W TO 13N57W WINDS 20 KT OR LESS.
SEAS TO 9 FT.
.12 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.CARIBBEAN FROM 11N TO 13N BETWEEN 73W AND 76W NE TO E WINDS 20
TO 25 KT. SEAS TO 9 FT.
.06 HOUR FORECAST FROM 11N TO 14.5N BETWEEN 72W AND 78W NE TO E
WINDS 20 TO 25 KT. SEAS TO 9 FT.
.24 HOUR FORECAST S OF 13N BETWEEN 70W AND 75W NE TO E WINDS 20
TO 25 KT. SEAS LESS THAN 8 FT.
.36 HOUR FORECAST FROM 11N TO 14N BETWEEN 73W AND 78W NE TO E
WINDS 20 TO 25 KT. SEAS TO 9 FT.
.48 HOUR FORECAST FROM 11N TO 14N BETWEEN 70W AND 79W NE TO E
WINDS 20 TO 25 KT. SEAS TO 8 FT.

.CARIBBEAN S OF 17.5N BETWEEN 85W AND 87W E TO SE 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 S OF 17.5N BETWEEN 85W AND 87W E TO SE WINDS
20 TO 25 KT. SEAS LESS THAN 8 FT.
.42 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.
.48 HOUR FORECAST S OF 17.5N BETWEEN 85W AND 87W E TO SE 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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