North Atlantic High Seas Forecast

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FZNT01 KWBC 222133
HSFAT1

HIGH SEAS FORECAST FOR METAREA IV 
NWS OCEAN PREDICTION CENTER WASHINGTON DC 
2230 UTC SUN JUL 22 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS 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 JUL 22. 
24 HOUR FORECAST VALID 1800 UTC JUL 23. 
48 HOUR FORECAST VALID 1800 UTC JUL 24. 

.WARNINGS. 

...GALE WARNING... 
.OVER FORECAST WATERS WITHIN 240 NM S OF A LINE FROM 62N51W TO 
59N43W TO 58N35W AREA OF W TO NW WINDS 25 TO 40 KT. SEAS 8 TO 14 
FT. 
.24 HOUR FORECAST WITHIN 180 NM SW AND S OF A LINE FROM 61N50W 
TO 60N46W TO 56N38W AREA OF W TO NW WINDS 25 TO 35 KT. SEAS 8 TO 
12 FT. 
.48 HOUR FORECAST CONDITIONS ABSORBED BY LOW 61N43W DESCRIBED 
BELOW.

...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.
.36 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 LOW 67N60W 1002 MB. OVER ICE FREE FORECAST 
WATERS N OF 60N AND W OF 55W WINDS TO 25 KT. SEAS TO 8 FT.
.42 HOUR FORECAST LOW 65N49W 997 MB. WITHIN 300 NM W AND SW 
QUADRANTS WINDS 25 TO 35 KT. SEAS 8 TO 12 FT.
.48 HOUR FORECAST LOW 61N43W 996 MB. WITHIN 420 NM S AND 480 NM 
W QUADRANTS WINDS 25 TO 35 KT. SEAS 8 TO 14 FT.

.SYNOPSIS AND FORECAST. 

.FROM 31N TO 43N BETWEEN 66W AND 78W AREA OF S TO SE WINDS 20 TO 
30 KT. SEAS 8 TO 12 FT. 
.24 HOUR FORECAST FROM 31N TO 41N BETWEEN 70W AND 80W AREA OF S 
TO SE WINDS TO 25 KT. SEAS TO 11 FT. 
.48 HOUR FORECAST FROM 31N TO 39N BETWEEN 71W AND 80W AREA OF S 
TO SE WINDS TO 25 KT. SEAS TO 9 FT.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM WITHIN 240 NM E AND 
SE OF A LINE FROM 50N51W TO 47N54W TO 43N69W.
.24 HOUR FORECAST DENSE FOG FROM 41N TO 52N W OF 45W.
.48 HOUR FORECAST DENSE FOG FROM 41N TO 49N W OF 48W.

.HIGH 41N48W 1036 MB MOVING S 05 KT. 
.24 HOUR FORECAST HIGH 40N48W 1034 MB. 
.48 HOUR FORECAST HIGH 37N52W 1033 MB.

.HIGH 58N60W 1027 MB MOVING SE 15 KT.
.24 HOUR FORECAST HIGH DISSIPATED.

.24 HOUR FORECAST HIGH 55N56W 1024 MB.
.48 HOUR FORECAST HIGH 48N47W 1026 MB.

.FORECASTER NOLT. 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 SUN JUL 22.
24 HOUR FORECAST VALID 1800 UTC MON JUL 23.
48 HOUR FORECAST VALID 1800 UTC TUE JUL 24.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.CARIBBEAN FROM 11N TO 14N BETWEEN 70W AND 78W NE TO E WINDS 20 
TO 25 KT. SEAS 9 TO 11 FT. ELSWHERE FROM 10N TO 15N BETWEEN 75W 
AND 82W WINDS 20 KT OR LESS. SEAS TO 9 FT IN NE TO E SWELL.
.12 HOUR FORECAST FROM 11N TO 13N BETWEEN 73W AND 76W NE TO E 
WINDS 25 TO 30 KT. SEAS 9 TO 11 FT. ELSEWHERE FROM 11N TO 14N 
BETWEEN 70W AND 78W NE TO E WINDS 20 TO 25 KT. SEAS 8 TO 9 FT. 
.24 HOUR FORECAST FROM 11N TO 13N BETWEEN 68W AND 78W NE TO E 
WINDS 20 TO 25 KT. SEAS 8 TO 10 FT. 
.36 HOUR FORECAST FROM 11N TO 15N BETWEEN 68W AND 77W NE TO E 
WINDS 20 TO 25 KT. SEAS 8 TO 9 FT. 
.48 HOUR FORECAST FROM 11N TO 13N BETWEEN 70W AND 78W NE TO E 
WINDS 20 TO 25 KT. SEAS 8 TO 9 FT.

.GULF OF MEXICO N OF 29N BETWEEN 85W AND 90W W WINDS 20 TO 25 
KT. SEAS LESS THAN 8 FT.
.06 HOUR FORECAST N OF 28N BETWEEN 85W AND 90W W WINDS 20 TO 25 
KT. SEAS LESS THAN 8 FT.
.24 HOUR FORECAST COLD FRONT FROM 30N84W TO 29N90W. S OF FRONT 
TO 27N AND E OF 90W W WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT. 
.36 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 GR. NATIONAL HURRICANE CENTER.