High Seas Forecast
Issued by NWS

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000
FZNT01 KWBC 202137
HSFAT1

HIGH SEAS FORECAST FOR METAREA IV
NWS OCEAN PREDICTION CENTER WASHINGTON DC
2230 UTC FRI JUL 20 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 20.
24 HOUR FORECAST VALID 1800 UTC JUL 21.
48 HOUR FORECAST VALID 1800 UTC JUL 22.

.WARNINGS.

...GALE WARNING...
.LOW 39N65W 1016 MB MOVING NE 15 KT. FRONT EXTENDS FROM 43N59W
TO THE LOW CENTER TO 35N70W. WITHIN 180 NM SE OF THE FRONT WINDS
25 TO 35 KT. SEAS TO 10 FT.
.24 HOUR FORECAST LOW 44N60W 1020 MB. WITHIN 180 NM NE AND 300
NM SE QUADRANTS WINDS TO 25 KT. SEAS TO 10 FT.
.48 HOUR FORECAST LOW DISSIPATED AND ASSOCIATED CONDITIONS
DIMINISHED.

...GALE WARNING...
.LOW 33N81W 1012 MB MOVING NE 15 KT. WINDS LESS THAN 25 KT. SEAS
LESS THAN 8 FT.
.24 HOUR FORECAST LOW 36N76W 1008 MB. FROM 31N TO 40N BETWEEN
71W AND 77W WINDS 25 TO 35 KT. SEAS 8 TO 12 FT.
.48 HOUR FORECAST LOW INLAND 44N75W 1009 MB. FRONT TO EXTEND
FROM 43N71W TO 32N79W. WITHIN 300 NM E OF THE FRONT WINDS 20 TO
30 KT. SEAS 8 TO 13 FT.

...GALE WARNING...
.06 HOUR FORECAST NEW LOW 62N40W 1003 MB. FROM 58N TO 61N
BETWEEN 35W AND 43W WINDS 25 TO 35 KT. SEAS 8 TO 12 FT.
.24 HOUR FORECAST LOW 62N41W 1003 MB. WITHIN 360 NM SE AND 300
NM SW QUADRANTS WINDS 25 TO 35 KT. SEAS 8 TO 12 FT.
.48 HOUR FORECAST LOW 61N42W 1008 MB. WITHIN 240 NM W
QUADRANT...AND 360 NM S AND SE QUADRANTS WINDS 25 TO 35 KT. SEAS
8 TO 13 FT.

.SYNOPSIS AND FORECAST.

.LOW 63N55W 1002 MB MOVING E 10 KT. OVER ICE FREE FORECAST
WATERS FROM 59N TO 65N W OF 50W WINDS 20 TO 30 KT. SEAS 8 TO 12
FT.
.24 HOUR FORECAST LOW DISSIPATED AND ASSOCIATED CONDITIONS
DIMINISHED.

.FRONT EXTENDS FROM 55N40W TO 43N59W. WITHIN 180 NM E AND SE OF
THE FRONT WINDS TO 25 KT. SEAS TO 9 FT.
.24 HOUR FORECAST CONDITIONS E OF AREA.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM OVER FORECAST
WATERS FROM 45N TO 56N E OF 52W.
.24 HOUR FORECAST DENSE FOG FROM 42N TO 52N BETWEEN 42W AND 60W.
.48 HOUR FORECAST DENSE FOG WITHIN 240 NM E AND SE OF A LINE
FROM 52N52W TO 47N54W TO 44N69W.

.HIGH 40N39W 1035 MB MOVING W 10 KT.
.24 HOUR FORECAST HIGH 40N42W 1035 MB.
.48 HOUR FORECAST HIGH 41N47W 1035 MB.

.HIGH 42N68W 1024 MB MOVING NE 05 KT.
.24 HOUR FORECAST HIGH 44N66W 1022 MB.
.48 HOUR FORECAST HIGH DISSIPATED.

.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 FRI JUL 20.
24 HOUR FORECAST VALID 1800 UTC SAT JUL 21.
48 HOUR FORECAST VALID 1800 UTC SUN JUL 22.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.ATLC FROM 09.5N TO 17N BETWEEN 50W AND 60W WINDS 20 KT OR LESS.
SEAS TO 8 FT IN NE TO E SWELL.
.12 HOUR FORECAST FROM 10N TO 14N BETWEEN 56W AND 61W WINDS 20
KT OR LESS. SEAS TO 8 FT IN NE SWELL.
.18 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.ATLC 03 HOUR FORECAST S OF 21N BETWEEN 71W AND 73W NE TO E
WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT.
.18 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.
.24 HOUR FORECAST LITTLE CHANGE.
.30 HOUR FORECAST S OF 21N BETWEEN 70W AND 72W NE TO E WINDS 20
TO 25 KT. SEAS LESS THAN 8 FT.
.36 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.CARIBBEAN FROM 11N TO 17N BETWEEN 70W AND 79W...INCLUDING
GULF OF VENEZUELA...E WINDS 20 TO 25 KT. SEAS 8 TO 11 FT. FROM
11N TO 16N BETWEEN 79W AND 80W WINDS 20 KT OR LESS. SEAS TO
9 FT IN NE TO E SWELL.
.06 HOUR FORECAST FROM 11N TO 12.5N BETWEEN 70W AND
76W...INCLUDING GULF OF VENEZUELA...NE TO E WINDS 25 TO 30 KT.
SEAS 9 TO 12 FT...EXCEPT LESS THAN 8 FT GULF OF VENEZUELA.
ELSEWHERE FROM 11N TO 17.5N BETWEEN 70W AND 78W NE TO E WINDS
20 TO 25 KT. SEAS 8 TO 10 FT. FROM 10N TO 15N BETWEEN 78W AND
81W WINDS 20 KT OR LESS. SEAS TO 9 FT IN NE TO E SWELL.
.24 HOUR FORECAST FROM 11N TO 17N BETWEEN 70W AND 80W...
INCLUDING GULF OF VENEZUELA...E WINDS 20 TO 25 KT. SEAS 8 TO 11
FT...EXCEPT 10 TO 13 FT FROM 11N TO 13N BETWEEN 75W AND 78W.
FROM 10N TO 17N BETWEEN 80W AND 82.5W WINDS 20 KT OR LESS. SEAS
TO 9 FT IN NE TO E SWELL.
.30 HOUR FORECAST FROM 11N TO 13N BETWEEN 70W AND 76W...
INCLUDING GULF OF VENEZUELA...NE TO E WINDS 25 TO 30 KT. SEAS 8
TO 12 FT...HIGHEST NEAR 12N75W. ELSEWHERE FROM 11N TO 16N
BETWEEN 70W AND 79W NE TO E WINDS 20 TO 25 KT. SEAS 8 TO 11 FT.
FROM 10N TO 16N BETWEEN 79W AND 82.5W WINDS 20 KT OR LESS. SEAS
8 TO 10 FT IN NE TO E SWELL.
.48 HOUR FORECAST FROM 11N TO 15N BETWEEN 72W AND 80W AND ALSO
GULF OF VENEZUELA NE TO E WINDS 20 TO 25 KT. SEAS 8 TO 12 FT...
EXCEPT LESS THAN 8 FT GULF OF VENEZUELA. REMAINDER AREA FROM 10N
TO 17N BETWEEN 75W AND 83W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT
IN NE TO E SWELL.

.GULF OF MEXICO 48 HOUR FORECAST N OF 29N BETWEEN 85W AND 89W W
WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT.

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

$$
.FORECASTER AGUIRRE. NATIONAL HURRICANE CENTER.



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