000
FZNT01 KWBC 250933
HSFAT1

HIGH SEAS FORECAST FOR METAREA IV
NWS OCEAN PREDICTION CENTER WASHINGTON DC
1030 UTC WED APR 25 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0600 UTC APR 25.
24 HOUR FORECAST VALID 0600 UTC APR 26.
48 HOUR FORECAST VALID 0600 UTC APR 27.

.WARNINGS.

...GALE WARNING...
.OVER FORECAST WATERS FROM 31N TO 39N BETWEEN 68W AND 75W AREA
OF S TO SE WINDS 25 TO 35 KT. SEAS 10 TO 18 FT.
.24 HOUR FORECAST FROM 31N TO 44N BETWEEN 59W AND 70W AREA OF S
TO SE WINDS 25 TO 35 KT. SEAS 10 TO 18 FT.
.48 HOUR FORECAST BETWEEN 61W AND A LINE FROM 48N52W TO 44N52W
TO 36N62W AREA OF S WINDS 25 TO 35 KT. SEAS 9 TO 17 FT.

...GALE WARNING...
.LOW 35N45W 1016 MB MOVING S 15 KT. OVER FORECAST WATERS WITHIN
360 NM E...300 NM SE...540 NM W...AND 300 NM NW QUADRANTS WINDS
20 TO 30 KT. SEAS TO 13 FT.
.24 HOUR FORECAST LOW 31N48W 1015 MB. WITHIN 180 NM NW
SEMICIRCLE OF 34N47W WINDS 25 TO 35 KT. SEAS 9 TO 17 FT.
.48 HOUR FORECAST LOW DISSIPATED AND ASSOCIATED CONDITIONS
DIMINISHED.

.SYNOPSIS AND FORECAST.

.LOW 43N35W 1022 MB MOVING NE 30 KT. WITHIN 180 NM EITHER SIDE
OF A FRONT FROM LOW CENTER TO 35N44W WINDS 20 TO 30 KT. SEAS TO
9 FT.
.24 HOUR FORECAST LOW AND CONDITIONS E OF AREA.

.LOW 57N58W 1006 MB MOVING SE 25 KT. OVER ICE FREE FORECAST
WATERS WITHIN 780 NM SE AND S QUADRANTS WINDS TO 25 KT. SEAS
LESS THAN 8 FT.
.24 HOUR FORECAST LOW 56N41W 1011 MB. WITHIN 600 NM SE AND 3080
NM SW QUADRANTS WINDS TO 25 KT. SEAS TO 8 FT.
.48 HOUR FORECAST LOW AND ASSOCIATED CONDITIONS E OF AREA.

.OVER ICE FREE FORECAST WATERS E OF A LINE FROM 60N47W TO 58N41W
AREA OF W WINDS TO 25 KT. SEAS TO 8 FT.
.24 HOUR FORECAST CONDITIONS DIMINISHED.
.48 HOUR FORECAST WITHIN 90 NM NE OF A LINE FROM 59N43W TO
56N35W AREA OF W WINDS TO 25 KT. SEAS TO 10 FT.

.48 HOUR FORECAST OVER ICE FREE FORECAST WATERS N OF 54N BETWEEN
50W AND 58W AREA OF S TO SE WINDS 20 TO 30 KT. SEAS TO 9 FT.

.48 HOUR FORECAST OVER FORECAST WATERS BETWEEN 79W AND A LINE
FROM 34N73W TO 31N76W AREA OF S WINDS TO 25 KT. SEAS LESS THAN 8
FT.

.LIGHT TO MODERATE FREEZING SPRAY OVER ICE FREE FORECAST WATERS
N OF 62N AND W OF GREENLAND.
.24 HOUR FORECAST LIGHT FREEZING SPRAY N OF 63N AND W OF
GREENLAND.
.48 HOUR FORECAST CONDITIONS IMPROVED.

.DENSE FOG. 24 HOUR FORECAST VSBY LESS THAN 1 NM OVER FORECAST
WATERS FROM 39N TO 44N W OF 64W.
.48 HOUR FORECAST DENSE FOG N OF A LINE FROM 45N55W TO 41N63W
AND OVER ICE FREE WATERS FROM 55N TO 61N W OF 54W.

.HIGH 40N59W 1031 MB MOVING E 20 KT.
.24 HOUR FORECAST HIGH 41N49W 1032 MB.
.48 HOUR FORECAST HIGH 42N40W 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 0600 UTC WED APR 25.
24 HOUR FORECAST VALID 0600 UTC THU APR 26.
48 HOUR FORECAST VALID 0600 UTC FRI APR 27.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.ATLC COLD FRONT FROM 31N77W TO 26N80W. N OF 29N BETWEEN 69W AND
74W SE TO S WINDS 20 TO 25 KT. SEAS 8 TO 10 FT. ELSEWHERE N OF
28N BETWEEN 68W AND LINE A FROM 31N76W TO 28N74W WINDS 20 KT OR
LESS. SEAS TO 9 FT IN SE SWELL. WINDS AND SEAS HIGHER IN AND
NEAR SCATTERED TSTMS N OF 27N BETWEEN 68W AND 74W.
.18 HOUR FORECAST COLD FRONT FROM 31N73W TO 23N81W. N OF 30N
BETWEEN 65W AND 70W S WINDS 20 TO 25 KT. SEAS 8 TO 10 FT.
.24 HOUR FORECAST COLD FRONT FROM 31N73W TO 23N80W. N OF 30N
BETWEEN 63W AND 66W SE TO S WINDS 20 TO 25 KT. SEAS TO 9 FT.
.30 HOUR FORECAST DISSIPATING STATIONARY FRONT FROM 31N71W TO
23N80W. WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.ATLC 18 HOUR FORECAST LOW PRES JUST N OF AREA NEAR 32N47W 1016
MB. N OF 30N BETWEEN 47W AND 50W NW TO N WINDS 20 TO 25 KT. SEAS
8 TO 10 FT. ELSEWHERE N OF 30N BETWEEN 47W AND 54W WINDS 20 KT
OR LESS. SEAS TO 9 FT IN N TO NE SWELL.
.24 HOUR FORECAST LOW PRES NEAR 31N47W 1016 MB. N OF 30N BETWEEN
49W AND 51W NW TO N WINDS 20 TO 25 KT. SEAS 10 TO 13 FT IN N
SWELL. ELSEWHERE N OF LINE FROM 31N55W TO 29N52W TO 31N46W WINDS
20 KT OR LESS. SEAS 8 TO 11 FT IN N TO NE SWELL.
.30 HOUR FORECAST LOW PRES NEAR 30N48W 1017 MB. N OF 30N BETWEEN
49W AND 52W N TO NE WINDS 20 TO 25 KT. SEAS 10 TO 12 FT IN N
SWELL. ELSEWHERE N OF 28N BETWEEN 44W AND 55W WINDS 20 KT OR
LESS. SEAS 8 TO 11 FT IN N TO NE SWELL.
.42 HOUR FORECAST WEAKENING LOW PRES NEAR 28N49W 1019 MB. N OF
26N BETWEEN 48W AND 55W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN
NE SWELL.
.48 HOUR FORECAST LOW PRES TO WEAKEN TO A TROUGH FROM 31N52W TO
25N47W. N OF 25N BETWEEN 51W AND 55W WINDS 20 KT OR LESS. SEAS 8
FT IN SUBSIDING N TO NE SWELL.

.CARIBBEAN FROM 11N TO 12.5N BETWEEN 70W AND 76W...INCLUDING
GULF OF VENEZUELA...NE TO E WINDS 20 TO 25 KT. SEAS 8 FT.
.06 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.
.18 HOUR FORECAST FROM 11N TO 13N BETWEEN 70W AND 76W...
INCLUDING GULF OF VENEZUELA...NE TO E WINDS 20 TO 25 KT. SEAS
8 FT.
.24 HOUR FORECAST LITTLE CHANGE.
.30 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.
.42 HOUR FORECAST FROM 11N TO 13N BETWEEN 70W AND 75W...
INCLUDING GULF OF VENEZUELA...NE TO E WINDS 20 TO 25 KT. SEAS
8 FT.
.48 HOUR FORECAST FROM 11N TO 13N BETWEEN 68W AND 73W...
INCLUDING GULF OF VENEZUELA...NE TO E WINDS 20 TO 25 KT.
SEAS TO 8 FT.

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

$$
.FORECASTER AGUIRRE. NATIONAL HURRICANE CENTER.