High Seas Forecast
Issued by NWS

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000
FZNT01 KWBC 230402
HSFAT1

HIGH SEAS FORECAST FOR METAREA IV
NWS OCEAN PREDICTION CENTER WASHINGTON DC
0430 UTC MON APR 23 2018

CCODE/1:31:04:01:00/AOW+AOE/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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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.

SEE ANNOUNCEMENT OF PLANNED INMARSAT I-3 TO I-4 MIGRATION
IN 2018 AT OCEAN.WEATHER.GOV/GMDSS_NOTICE.PHP (LOWERCASE).

ONLY YOU KNOW THE WEATHER AT YOUR POSITION. REPORT IT TO THE
NATIONAL WEATHER SERVICE. EMAIL US AT
VOSOPS@NOAA.GOV(LOWERCASE).

FOR INFORMATION ON ATLANTIC ICEBERGS SEE INFORMATION FROM NORTH
AMERICAN ICE SERVICE AT HTTPS://OCEAN.WEATHER.GOV/ATL_TAB.SHTML

SECURITE

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

SYNOPSIS VALID 0000 UTC APR 23.
24 HOUR FORECAST VALID 0000 UTC APR 24.
48 HOUR FORECAST VALID 0000 UTC APR 25.

.WARNINGS.

...GALE WARNING...
.LOW 55N42W 991 MB MOVING NE 15 KT. OVER ICE FREE FORECAST
WATERS BETWEEN 240 NM AND 480 NM NE...180 NM AND 600 NM SE...240
NM AND 480 NM SW...AND 180 NM AND 300 NM NW QUADRANTS WINDS 30
TO 45 KT. SEAS 10 TO 20 FT.
.24 HOUR FORECAST LOW E OF AREA 59N31W 992 MB. WITHIN 660 NM SW
AND 240 NM NW QUADRANTS WINDS 25 TO 35 KT. SEAS 9 TO 18 FT.
.48 HOUR FORECAST LOW WELL E OF AREA. E OF A LINE FROM 59N41W TO
52N36W WINDS TO 25 KT. SEAS TO 10 FT.

...GALE WARNING...
.24 HOUR FORECAST LOW INLAND 37N87W 1011 MB. OVER FORECAST
WATERS WITHIN 720 NM SE QUADRANT WINDS 25 TO 35 KT. SEAS 8 TO 13
FT.
.48 HOUR FORECAST LOW INLAND 36N79W 1009 MB. FROM 32N TO 38N
BETWEEN 70W AND 75W WINDS 30 TO 45 KT. SEAS 9 TO 18 FT.

.SYNOPSIS AND FORECAST.

.OVER FORECAST WATERS WITHIN 240 NM E OF A FRONT FROM 43N35W TO
36N46W WINDS 20 TO 30 KT. SEAS TO 11 FT.
.24 HOUR FORECAST FRONT AND ASSOCIATED CONDITIONS E OF AREA.

.48 HOUR FORECAST NEW LOW 35N46W 1019 MB. BETWEEN 180 NM AND 300
NM NW SEMICIRCLE WINDS 20 TO 30 KT. SEAS TO 11 FT.

.48 HOUR FORECAST LOW 57N56W 1005 MB. OVER ICE FREE FORECAST
WATERS WITHIN 480 NM SE QUADRANT WINDS TO 25 KT. SEAS LESS THAN
8 FT.

.24 HOUR FORECAST LIGHT TO MODERATE FREEZING SPRAY OVER ICE FREE
FORECAST WATERS W OF A LINE FROM 64N54W TO 61N58W TO 59N59W.
.48 HOUR FORECAST LIGHT TO MODERATE FREEZING SPRAY N OF 61N AND
W OF 53W.

.HIGH 38N72W 1030 MB MOVING NE 10 KT.
.24 HOUR FORECAST HIGH 42N69W 1033 MB.
.48 HOUR FORECAST HIGH 41N57W 1033 MB.

.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 0000 UTC MON APR 23.
24 HOUR FORECAST VALID 0000 UTC TUE APR 24.
48 HOUR FORECAST VALID 0000 UTC WED APR 25.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.ATLC COLD FRONT FROM 31N53W TO 28N59W...THEN STATIONARY
TO 26N69W TO 27N77W AND WARM FRONT TO 27.5N80W. N OF 27N BETWEEN
75W AND 8OW AND FROM 27N TO 29N BETWEEN 68W AND 75W E TO SE
WINDS 20 TO 25 KT. SEAS TO 9 FT. S OF 21N BETWEEN 70W AND
74W...INCLUDING APPROACHES TO THE WINDWARD PASSAGE...NE TO E
WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT. SCATTERED SHOWERS AND
TSTMS ALONG THE FRONTAL BOUNDARY W OF 75W.
.18 HOUR FORECAST STATIONARY FRONT FROM 31N55W TO 27N65W TO
27N77W...THEN WARM FRONT TO 29N81W. N OF 27N E OF WARM FRONT TO
75W E TO SE WINDS 20 TO 25 KT...EXCEPT 25 TO 30 KT N OF 30N.
SEAS 8 TO 10 FT...EXCEPT 9 TO 11 FT N OF 30N.
.24 HOUR FORECAST STATIONARY FRONT FROM 31N54W TO 27N65W TO
28N76W...THEN WARM FRONT TO 31N80W. N OF 28N E OF WARM FRONT TO
74W E TO SE WINDS 20 TO 25 KT...EXCEPT SE 25 T0 30 KT N OF 30N
BETWEEN 75W AND 78W. SEAS 8 TO 10 FT...EXCEPT 9 TO 11 FT N OF
30N BETWEEN 75W AND 78W.
.48 HOUR FORECAST WARM FRONT FROM 28N68W TO 31N71W. N OF 29N
BETWEEN 69W AND 72W SE TO S WINDS 20 TO 25 KT. SEAS 8 TO 10 FT.
ELSEWHERE N OF 29N BETWEEN 68W AND 77W WINDS 20 KT OR LESS. SEAS
TO 9 FT IN MIXED NE AND SE SWELL. S OF 21N BETWEEN 71W AND 72W E
WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT.

.ATLC FROM 14N TO 25N E OF 44W WINDS 20 KT OR LESS. SEAS 8 FT IN
N TO NE SWELL.
.24 HOUR FORECAST FROM 13N TO 20N E OF 45W WINDS 20 KT OR LESS.
SEAS TO 8 FT IN DECAYING NE SWELL.
.30 HOUR FORECAST FROM 15N TO 19N BETWEEN 45W AND 48W WINDS 20
KT OR LESS. SEAS TO 8 FT IN DECAYING NE SWELL.
.36 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.CARIBBEAN FROM 11N TO 15N BETWEEN 70W AND 77W NE TO E WINDS 20
TO 25 KT...EXCEPT 25 TO 30 KT WITHIN 90 NM OF THE COAST OF
COLOMBIA. SEAS 8 TO 10 FT. FROM 15N TO 17.5N BETWEEN 70W AND 74W
E WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT.
.18 HOUR FORECAST FROM 11N TO 14N BETWEEN 72W AND 77W NE TO E
WINDS 20 TO 25 KT. SEAS TO 9 FT.
.24 HOUR FORECAST LITTLE CHANGE.
.30 HOUR FORECAST FROM 11N TO 13.5N BETWEEN 70W AND
79W...INCLUDING GULF OF VENEZUELA...NE TO E WINDS 20 TO 25 KT.
SEAS TO 9 FT.
.48 HOUR FORECAST FROM 10.5N TO 13N BETWEEN 70W AND
77W...INCLUDING GULF OF VENEZUELA...NE TO E WINDS 20 TO 25 KT.
SEAS 8 FT.

.GULF OF MEXICO COLD FRONT FROM 30N89W TO 25N92W TO 23N98W.
WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT. SCATTERED SHOWERS AND
TSTMS N OF 25N E OF FRONT.
.12 HOUR FORECAST COLD FRONT FROM 30N87W TO 25N90W TO 18N94W.
WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT. SCATTERED SHOWERS AND
TSTMS N OF 25N E OF FRONT.
.24 HOUR FORECAST COLD FRONT FROM 30N84W TO 25N88W AND
STATIONARY TO 18N93W. WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.
SCATTERED SHOWERS AND TSTMS N OF 25N E OF FRONT.
.36 HOUR FORECAST COLD FRONT FROM 28N83W TO 24N88W AND
STATIONARY TO 18N93W. WINDS 20 KT OR LESS. SEAS LESS THAN 8
FT. SCATTERED SHOWERS AND ISOLATED TSTMS ALONG FRONT.
.42 HOUR FORECAST COLD FRONT WEAKENING FROM 27N82W TO 24N87W
AND STATIONARY TO 18N93W. WINDS 20 KT OR LESS. SEAS LESS THAN
8 FT. SCATTERED SHOWERS AND TSTMS TO DIMINISH.

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

$$
.FORECASTER AGUIRRE. NATIONAL HURRICANE CENTER.


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