North Atlantic High Seas Forecast

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FZNT01 KWBC 230346
HSFAT1

HIGH SEAS FORECAST FOR METAREA IV 
NWS OCEAN PREDICTION CENTER WASHINGTON DC 
0430 UTC MON JUL 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS 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 JUL 23. 
24 HOUR FORECAST VALID 0000 UTC JUL 24. 
48 HOUR FORECAST VALID 0000 UTC JUL 25. 

.WARNINGS. 

...GALE WARNING... 
.OVER FORECAST WATERS WITHIN AN AREA BOUNDED BY A LINE FROM 
57N35W TO 57N41W TO 63N51W TO 57N48W TO 54N35W AREA OF W TO NW 
WINDS 25 TO 35 KT. SEAS 8 TO 12 FT. 
.24 HOUR FORECAST WITHIN 180 NM SW OF A LINE FROM 61N49W TO 
57N40W AREA OF W TO NW WINDS 20 TO 30 KT. SEAS 8 TO 11 FT. 
.48 HOUR FORECAST CONDITIONS DIMINISHED.

...GALE WARNING... 
.24 HOUR FORECAST LOW 52N50W 1017 MB. FROM 45N TO 49N BETWEEN 
38W AND 62W WINDS TO 25 KT. SEAS TO 8 FT. 
.30 HOUR FORECAST LOW 49N36W 1011 MB. WITHIN 480 NM S AND SW 
QUADRANTS WINDS 25 TO 35 KT. SEAS 8 TO 12 FT. 
.48 HOUR FORECAST LOW E OF AREA 47N28W 1004 MB. OVER FORECAST 
WATERS FROM 40N TO 48N E OF 41W WINDS 20 TO 30 KT. SEAS 8 TO 13 
FT. 

...GALE WARNING... 
.24 HOUR FORECAST OVER ICE FREE FORECAST WATERS N OF 60N AND W 
OF 54W WINDS TO 25 KT. SEAS LESS THAN 8 FT. 
.36 HOUR FORECAST NEW LOW 65N50W 997 MB. N OF 59N BETWEEN 53W 
AND 59W AREA OF NW WINDS 25 TO 35 KT. SEAS TO 11 FT. 
.48 HOUR FORECAST LOW 61N39W 990 MB. WITHIN 120 NM N...360 NM S 
AND SW...AND 420 NM W QUADRANTS WINDS 30 TO 45 KT. SEAS 8 TO 16 
FT. 

.SYNOPSIS AND FORECAST. 

.FROM 31N TO 43N BETWEEN 67W AND 77W AREA OF SE TO S WINDS 20 TO 
30 KT. SEAS TO 12 FT. 
.24 HOUR FORECAST FROM 31N TO 40N BETWEEN 71W AND 79W AREA OF SE 
TO S WINDS TO 25 KT. SEAS TO 10 FT. 
.48 HOUR FORECAST FROM 31N TO 38N BETWEEN 72W AND 79W AREA OF SE 
TO S WINDS TO 25 KT. SEAS TO 9 FT. 

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM W OF A LINE FROM 
52N52W TO 47N44W TO 43N50W TO 41N68W.
.24 HOUR FORECAST DENSE FOG FROM 43N TO 52N BETWEEN 44W AND 52W 
AND FROM 41N TO 47N BETWEEN 52W AND 68W.
.48 HOUR FORECAST DENSE FOG FROM 41N TO 53N W OF 47W. 

.HIGH 41N48W 1036 MB MOVING SE 10 KT. 
.24 HOUR FORECAST HIGH 38N47W 1034 MB. 
.48 HOUR FORECAST HIGH 37N54W 1032 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 JUL 23.
24 HOUR FORECAST VALID 0000 UTC TUE JUL 24.
48 HOUR FORECAST VALID 0000 UTC WED JUL 25.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.CARIBBEAN FROM 11N TO 13N BETWEEN 70W AND 76W NE TO E WINDS 20 
TO 25 KT. SEAS 8 TO 9 FT. ELSWHERE FROM 10N TO 15N BETWEEN 72W 
AND 81W WINDS 20 KT OR LESS. SEAS TO 9 FT IN NE TO E SWELL.
.24 HOUR FORECAST FROM 11N TO 13N BETWEEN 69W AND 75W NE TO E 
WINDS 20 TO 25 KT. SEAS 8 TO 9 FT. 
.48 HOUR FORECAST FROM 11N TO 13.5N BETWEEN 70W AND 76W NE TO E 
WINDS 20 TO 25 KT. SEAS 8 TO 9 FT.

.GULF OF MEXICO N OF 29N BETWEEN 87W AND 90W W 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 AL. NATIONAL HURRICANE CENTER.