North Atlantic High Seas Forecast

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FZNT01 KWBC 241549
HSFAT1

HIGH SEAS FORECAST FOR METAREA IV 
NWS OCEAN PREDICTION CENTER WASHINGTON DC 
1630 UTC TUE APR 24 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS 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 1200 UTC APR 24. 
24 HOUR FORECAST VALID 1200 UTC APR 25. 
48 HOUR FORECAST VALID 1200 UTC APR 26. 

.WARNINGS. 

...GALE WARNING... 
.OVER FORECAST WATERS FROM 31N TO 36N BETWEEN 72W AND 78W AREA 
OF S TO SE WINDS 25 TO 40 KT. SEAS 10 TO 21 FT. 
.24 HOUR FORECAST FROM 31N TO 40N BETWEEN 65W AND 74W AREA OF S 
TO SE WINDS 25 TO 40 KT. SEAS 10 TO 22 FT. 
.48 HOUR FORECAST FROM 34N TO 45N BETWEEN 58W AND 68W AREA OF S 
TO SE WINDS 25 TO 40 KT. SEAS 9 TO 18 FT. 

...GALE WARNING... 
.24 HOUR FORECAST LOW 34N46W 1014 MB. OVER FORECAST WATERS 
WITHIN 180 NM NW SEMICIRCLE WINDS 25 TO 35 KT. SEAS 8 TO 13 FT.
.48 HOUR FORECAST LOW S OF AREA 30N48W 1014 MB. FROM 31N TO 38N 
BETWEEN 43W AND 52W WINDS 20 TO 30 KT. SEAS 9 TO 14 FT. 

.SYNOPSIS AND FORECAST. 

.OVER FORECAST WATERS FROM 48N TO 55N E OF 40W AREA OF W TO NW 
WINDS 20 TO 30 KT. SEAS 8 TO 13 FT. 
.24 HOUR FORECAST CONDITIONS E OF AREA.

.LOW 38N43W 1020 MB MOVING SW 10 KT. BETWEEN 90 NM AND 180 NM NW 
SEMICIRCLE AND WITHIN 120 NM SE SEMICIRCLE WINDS 20 TO 30 KT. 
SEAS TO 8 FT.
.24 HOUR FORECAST LOW 43N35W 1019 MB. OVER FORECAST WATERS 
WITHIN 120 NM SW QUADRANT WINDS 20 TO 30 KT. SEAS TO 8 FT.

.24 HOUR FORECAST LOW 57N57W 1007 MB. WINDS LESS THAN 25 KT. 
SEAS LESS THAN 8 FT. 
.48 HOUR FORECAST LOW 55N35W 1007 MB. WITHIN 480 NM SW QUADRANT 
WINDS 20 TO 30 KT. SEAS TO 10 FT. 

.48 HOUR FORECAST FROM 58N TO 60N BETWEEN 42W AND 47W WINDS 20 
TO 30 KT. SEAS TO 8 FT.

.LIGHT TO MODERATE FREEZING SPRAY OVER ICE FREE FORECAST WATERS 
N OF 62N W OF 53W. 
.24 HOUR FORECAST LIGHT TO MODERATE FREEZING SPRAY N OF 63N W OF 
52W. 
.48 HOUR FORECAST LIGHT TO MODERATE FREEZING SPRAY N OF 62N AND 
W OF 54W. 

.DENSE FOG. 48 HOUR FORECAST VSBY LESS THAN 1 NM OVER FORECAST 
WATERS FROM 40N TO 44N BETWEEN 64W AND 70W. 

.HIGH 41N64W 1034 MB MOVING E 15 KT. 
.24 HOUR FORECAST HIGH 40N54W 1032 MB. 
.48 HOUR FORECAST HIGH 42N44W 1034 MB.

.48 HOUR FORECAST HIGH 56N53W 1021 MB. 

.FORECASTER KREKELER. 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 1200 UTC TUE APR 24.
24 HOUR FORECAST VALID 1200 UTC WED APR 25.
48 HOUR FORECAST VALID 1200 UTC THU APR 26.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.ATLC COLD FRONT FROM 31N80W TO 29N81W. N OF 28N BETWEEN 71W AND 
77W SE TO S WINDS 20 TO 25 KT...TO 30 KT N OF 30N BETWEEN 74W 
AND 77W. SEAS 8 TO 12 FT... HIGHEST NEAR 30N76W. N OF 29N W OF 
77W WINDS 20 KT OR LESS. SEAS TO 9 FT IN SE SWELL. WINDS AND 
SEAS HIGHER IN AND NEAR NUMEROUS SHOWERS AND SCATTERED TSTMS N 
OF 26N BETWEEN 74W AND 78W.
.24 HOUR FORECAST COLD FRONT FROM 31N75W TO 23N81W. N OF 30N 
BETWEEN 65W AND 71W SE TO S WINDS 20 TO 25 KT. SEAS 8 TO 10 FT. 
.48 HOUR FORECAST DISSIPATING COLD FRONT FROM 31N70W TO 23N80W. 
WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.ATLC FROM 17N TO 22N E OF 40W WINDS 20 KT OR LESS. SEAS 8 FT IN 
NE SWELL. 
.12 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.ATLC 48 HOUR FORECAST LOW PRES NEAR 30N48W 1015 MB. N OF 30N 
BETWEEN 48W AND 51W N TO NE WINDS 20 TO 25 KT. SEAS 10 TO 12 FT. 
ELSEWHERE N OF 27N BETWEEN 45W AND 53W WINDS 20 KT OR LESS. SEAS 
8 TO 10 FT IN NE SWELL. 

.CARIBBEAN FROM 11N TO 13N BETWEEN 73W AND 77W NE TO E WINDS 20 
TO 25 KT. SEAS TO 9 FT. 
.24 HOUR FORECAST FROM 11N TO 13.5N BETWEEN 73W AND 78W NE TO E 
WINDS 20 TO 25 KT. SEAS 8 TO 9 FT.
.48 HOUR FORECAST FRO 11N TO 13N BETWEEN 74W AND 77W NE TO E 
WINDS 20 TO 25 KT. SEAS 8 FT.

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

$$
.FORECASTER AL. NATIONAL HURRICANE CENTER.