Expires:No;;445832
FZNT01 KWBC 242136
HSFAT1

HIGH SEAS FORECAST FOR METAREA IV 
NWS OCEAN PREDICTION CENTER WASHINGTON DC 
2230 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS 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 1800 UTC APR 24. 
24 HOUR FORECAST VALID 1800 UTC APR 25. 
48 HOUR FORECAST VALID 1800 UTC APR 26. 

.WARNINGS. 

...GALE WARNING... 
.OVER FORECAST WATERS FROM 31N TO 37N BETWEEN 70W AND 77W AREA 
OF S TO SE WINDS 25 TO 40 KT. SEAS 10 TO 21 FT. 
.24 HOUR FORECAST FROM 31N TO 40N BETWEEN 63W AND 72W AREA OF S 
TO SE WINDS 25 TO 40 KT. SEAS 10 TO 22 FT. 
.48 HOUR FORECAST FROM 35N TO 46N BETWEEN 57W AND 65W AREA OF S 
TO SE WINDS 25 TO 35 KT. SEAS 10 TO 20 FT. 

...GALE WARNING... 
.24 HOUR FORECAST NEW LOW 34N46W 1015 MB. OVER FORECAST WATERS 
WITHIN 180 NM NW SEMICIRCLE WINDS 25 TO 35 KT. SEAS 8 TO 16 FT. 
.48 HOUR FORECAST LOW S OF AREA 30N50W 1015 MB. OVER FORECAST 
WATERS WITHIN 120 NM N QUADRANT WINDS TO 25 KT. SEAS TO 10 FT. 

.SYNOPSIS AND FORECAST. 

.OVER FORECAST WATERS FROM 47N TO 54N E OF 40W AREA OF W TO NW 
WINDS 20 TO 30 KT. SEAS 8 TO 12 FT. 
.24 HOUR FORECAST CONDITIONS E OF AREA. 

.LOW 36N45W 1020 MB MOVING NE 25 KT. WITHIN 480 NM NE AND 180 NM 
NW QUADRANTS WINDS 20 TO 30 KT. SEAS TO 8 FT. 
.24 HOUR FORECAST LOW AND CONDITIONS E OF AREA.

.24 HOUR FORECAST LOW 58N56W 1007 MB. OVER ICE FREE FORECAST 
WATERS WITHIN 120 NM W QUADRANT WINDS 20 TO 30 KT. SEAS LESS 
THAN 8 FT. 
.48 HOUR FORECAST LOW E OF AREA 54N30W 1010 MB. WITHIN 480 NM SW 
QUADRANT WINDS 20 TO 30 KT. SEAS TO 10 FT. 

.24 HOUR FORECAST FROM 59N TO 60N BETWEEN 41W AND 44W WINDS 20 
TO 30 KT. SEAS TO 8 FT.
.48 HOUR FORECAST FROM 57N TO 60N BETWEEN 38W AND 46W WINDS 20 
TO 30 KT. SEAS TO 10 FT. 

.48 HOUR FORECAST OVER ICE FREE WATERS N OF 59N W OF 58W WINDS 
20 TO 30 KT. SEAS LESS THAN 8 FT.

.LIGHT TO MODERATE FREEZING SPRAY OVER ICE FREE FORECAST WATERS 
N OF 62N W OF 50W. 
.24 HOUR FORECAST LIGHT TO MODERATE FREEZING SPRAY N OF 63N W OF 
52W. 
.48 HOUR FORECAST LIGHT TO MODERATE FREEZING SPRAY N OF 65N AND 
W OF 53W. 

.DENSE FOG. 24 HOUR FORECAST VSBY LESS THAN 1 NM OVER FORECAST 
WATERS WITHIN 90 NM OF 42N68W.
.48 HOUR FORECAST DENSE FOG W OF A LINE FROM 46N55W TO 40N64W. 

.HIGH 40N62W 1032 MB MOVING E 15 KT. 
.24 HOUR FORECAST HIGH 41N54W 1032 MB. 
.48 HOUR FORECAST HIGH 42N43W 1034 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 1800 UTC TUE APR 24.
24 HOUR FORECAST VALID 1800 UTC WED APR 25.
48 HOUR FORECAST VALID 1800 UTC THU APR 26.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.ATLC COLD FRONT FROM 31N78W TO 28N80W. N OF 28N BETWEEN 70W AND 
76W SE TO S WINDS 20 TO 30 KT. SEAS 8 TO 13 FT... HIGHEST NEAR 
30N75W. N OF 29N BETWEEN 76W AND 78W WINDS 20 KT OR LESS. SEAS 
TO 9 FT IN SE SWELL. WINDS AND SEAS HIGHER IN AND NEAR NUMEROUS 
SHOWERS AND SCATTERED TSTMS FROM 26N TO 29N BETWEEN 72W AND 80W.
.24 HOUR FORECAST COLD FRONT FROM 31N73W TO 23N80W. N OF 30N 
BETWEEN 65W AND 71W SE TO S WINDS 20 TO 25 KT. SEAS 8 TO 9 FT. 
.42 HOUR FORECAST DISSIPATING COLD FRONT FROM 31N70W TO 23N80W. 
WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.ATLC FROM 18N TO 22N E OF 40W WINDS 20 KT OR LESS. SEAS 8 FT IN 
NE SWELL. 
.06 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.ATLC 36 HOUR FORECAST LOW PRES JUST N OF AREA. N OF 30N BETWEEN 
48W AND 51W 
.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 74W AND 77W WINDS 20 KT OR 
LESS. SEAS TO 8 FT IN NE TO E SWELL.
.06 HOUR FORECAST FROM 11N TO 13N BETWEEN 73W AND 77W NE TO E 
WINDS 20 TO 25 KT. SEAS 8 FT.  
.24 HOUR FORECAST FROM 11N TO 13N BETWEEN 74W AND 77W WINDS 20 
KT OR LESS. SEAS TO 8 FT IN NE TO E SWELL.
.36 HOUR FORECAST FROM 11N TO 13N BETWEEN 74W AND 77W NE TO E 
WINDS 20 TO 25 KT. SEAS TO 9 FT. 
.48 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 AL. NATIONAL HURRICANE CENTER.