High Seas Forecast
Issued by NWS

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000
FZNT01 KWBC 180933
HSFAT1

HIGH SEAS FORECAST FOR METAREA IV
NWS OCEAN PREDICTION CENTER WASHINGTON DC
1030 UTC SAT APR 18 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 18
24 HOUR FORECAST VALID 0600 UTC APR 19
48 HOUR FORECAST VALID 0600 UTC APR 20

.WARNINGS.

...STORM WARNING...
.LOW 51N37W 985 MB MOVING NW 30 KT. WITHIN 180 NM W AND SW
QUADRANTS WINDS 35 TO 50 KT. SEAS 20 TO 31 FT. ELSEWHERE E AND
NE OF A LINE FROM 64N62W TO 39N41W WINDS 25 TO 40 KT. SEAS 10 TO
22 FT...EXCEPT 22 TO 30 FT NEAR 46N36W.
.24 HOUR FORECAST LOW 62N41W 989 MB. N AND NE OF A LINE FROM
65N55W TO 58N45W TO 58N35W WINDS 25 TO 35 KT. SEAS 9 TO 18 FT.
.48 HOUR FORECAST LOW AND CONDITIONS N OF AREA.

...STORM WARNING...
.42 HOUR FORECAST LOW 41N56W 993 MB. WITHIN 180 NM W SEMICIRCLE
WINDS 40 TO 55 KT. SEAS 12 TO 18 FT.
.48 HOUR FORECAST LOW 43N50W 977 MB. WITHIN 240 NM OF THE LOW
EXCEPT WITHIN 420 NM SE QUADRANT WINDS 40 TO 55 KT. SEAS 16 TO
27 FT. ELSEWHERE FROM 31N TO 50N BETWEEN 35W AND 59W WINDS 25 TO
40 KT. SEAS 9 TO 18 FT.

...GALE WARNING...
.COMPLEX LOW WITH MEAN CENTER INLAND 49N55W 1000 MB MOVING E 20
KT. WITHIN 840 NM SW AND 600 NM SE QUADRANTS WINDS 25 TO 35 KT.
SEAS 8 TO 14 FT.
.24 HOUR FORECAST LOWS ABSORBED WITH NEW LOW 50N39W 998 MB.
WITHIN 360 NM SE OF A FRONT FROM 47N34W TO 37N57W AND WITHIN 240
NM SW SEMICIRCLE AND E QUADRANT WINDS 25 TO 40 KT. SEAS 12 TO 20
FT. ELSEWHERE WITHIN 240 NM NW AND N QUADRANTS WINDS 20 TO 30
KT. SEAS TO 12 FT.
.48 HOUR FORECAST LOW 61N35W 998 MB. WITHIN 180 NM NW AND 300 NM
SW QUADRANTS WINDS 25 TO 35 KT. SEAS 10 TO 14 FT.

...HEAVY FREEZING SPRAY WARNING...
.MODERATE TO HEAVY FREEZING SPRAY N OF 60N W OF 45W.
.24 HOUR FORECAST LITTLE CHANGE.
.48 HOUR FORECAST LITTLE CHANGE.

.SYNOPSIS AND FORECAST.

.48 HOUR FORECAST FROM 31N TO 41N W OF 69W WINDS 20 TO 30 KT.
SEAS TO 12 FT.

.DENSE FOG. VSBY OCCASIONALLY 1 NM OR LESS FROM 55N TO 61N
BETWEEN 35W AND 40W AND FROM 41N TO 46N BETWEEN 70W AND 50W.
.24 HOUR FORECAST DENSE FOG N OF 62N E OF 40W.
.48 HOUR FORECAST CONDITIONS IMPROVED.

.HIGH 34N49W 1028 MB MOVING NE 25 KT.
.24 HOUR FORECAST HIGH 36N37W 1028 MB.
.48 HOUR FORECAST HIGH E OF AREA.

.FORECASTER LEE. 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 APR 18.
24 HOUR FORECAST VALID 0600 UTC SUN APR 19.
48 HOUR FORECAST VALID 0600 UTC MON APR 20.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.ATLC COLD FRONT FROM 29N35W TO 26N46W THEN STATIONARY TO
28N56W...THEN DEVELOPING WARM FRONT TO 31N69W. N OF FRONTS WINDS
20 KT OR LESS. SEAS 8 TO 15 FT PRIMARILY IN N TO NE SWELL...
HIGHEST SEAS NEAR 31N41W.
.24 HOUR FORECAST FRONTS DISSIPATED. N OF 21N E OF 58W WINDS 20
KT OR LESS. SEAS 8 TO 13 FT PRIMARILY IN N SWELL...HIGHEST SEAS
NEAR 28N36W.
.30 HOUR FORECAST COLD FRONT FROM 31N62W TO 27N70W THEN
STATIONARY TO 27N75W. N OF 30N BETWEEN 50W AND 55W S WINDS 20 TO
25 KT. SEAS 9 FT. REMAINDER AREA N OF 13N E OF 58W WINDS 20 KT
OR LESS. SEAS 8 TO 12 FT PRIMARILY IN N SWELL.
.48 HOUR FORECAST COLD FRONT FROM 31N50W TO 26.5N65W. N OF 30N
WITHIN 360 NM E OF FRONT SW WINDS 20 TO 25 KT. SEAS TO 9 FT. E
OF LINE FROM 31N36W TO 16N61W TO 07N47W WINDS 20 KT OR LESS.
SEAS 8 TO 11 FT PRIMARILY IN N SWELL.

.ATLC S OF 10N BETWEEN 52W AND 55W WINDS 20 KT OR LESS. SEAS
TO 8 FT IN MIXED NE AND SE SWELL.
.12 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.CARIBBEAN FROM 11N TO 13.5N BETWEEN 74W AND 77W NE TO E WINDS
20 TO 25 KT. SEAS TO 9 FT.
.12 HOUR FORECAST WITHIN 60 NM OF 12N77W WINDS 20 KT OR LESS.
SEAS TO 8 FT IN E SWELL.
.18 HOUR FORECAST FROM 11N TO 13.5N BETWEEN 72W AND 76W NE TO E
WINDS 20 TO 25 KT. SEAS TO 8 FT.
.24 HOUR FORECAST LITTLE CHANGE.
.48 HOUR FORECAST FROM 11N TO 13N BETWEEN 73W AND 77W NE TO E
WINDS 20 TO 25 KT. SEAS TO 8 FT.

.CARIBBEAN S OF 17.5N BETWEEN 85W AND 87W NE TO E WINDS 20 TO 25
KT. SEAS LESS THAN 8 FT.
.06 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.
.18 HOUR FORECAST S OF 17.5N BETWEEN 84W AND 87W E TO SE WINDS
20 TO 25 KT. SEAS LESS THAN 8 FT.
.24 HOUR FORECAST S OF 18.5N BETWEEN 85W AND 87.5W E TO SE WINDS
20 TO 25 KT. SEAS TO 9 FT.
.36 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.
.42 HOUR FORECAST S OF 17.5N BETWEEN 84W AND 87W E TO SE WINDS
20 TO 25 KT. SEAS LESS THAN 8 FT.
.48 HOUR FORECAST S OF 18N BETWEEN 84W AND 87W E TO SE WINDS 20
TO 25 KT. SEAS TO 8 FT.

.GULF OF MEXICO TROUGH S OF 23N ALONG 91W. FROM 21N TO 23N
WITHIN 120 NM E OF TROUGH E TO SE WINDS 20 TO 25 KT. SEAS LESS
THAN 8 FT.
.12 HOUR FORECAST TROUGH DISSIPATED.WINDS 20 KT OR LESS. SEAS
LESS THAN 8 FT.
.18 HOUR FORECAST S OF 23N BETWEEN 87W AND 89W E TO SE WINDS 20
TO 25 KT. SEAS LESS THAN 8 FT.
.24 HOUR FORECAST WINDS 20 KT OR LESS. 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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