High Seas Forecast
Issued by NWS

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000
FZNT01 KWBC 200934
HSFAT1

HIGH SEAS FORECAST FOR METAREA IV
NWS OCEAN PREDICTION CENTER WASHINGTON DC
1030 UTC MON FEB 20 2017

CCODE/1:31:04:01:00/AOW/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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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.
ONLY YOU KNOW THE WEATHER AT YOUR POSITION. REPORT IT TO THE
NATIONAL WEATHER SERVICE. EMAIL US AT
VOSOPS@NOAA.GOV(LOWERCASE).

SECURITE

NORTH ATLANTIC NORTH OF 31N TO 67N AND WEST OF 35W

SYNOPSIS VALID 0600 UTC FEB 20
24 HOUR FORECAST VALID 0600 UTC FEB 21
48 HOUR FORECAST VALID 0600 UTC FEB 22

.WARNINGS.

...GALE WARNING...
.LOW 52N46W 997 MB MOVING NE 40 KT AND RAPIDLY INTENSIFYING.
OVER FORECAST WATERS WITHIN 300 NM E AND SE OF A LINE FROM
60N40W TO 49N48W TO 44N51W TO 35N68W WINDS 25 TO 40 KT. SEAS 9
TO 19 FT.
.24 HOUR FORECAST LOW E OF AREA 63N23W 973 MB. WITHIN 120 NM OF
THE GREENLAND COAST BETWEEN 42W AND 48W WINDS 25 TO 35 KT. SEAS
9 TO 15 FT. ELSEWHERE N OF 55N BETWEEN 60W AND 35W WINDS 20 TO
30 KT. SEAS TO 12 FT.
.48 HOUR FORECAST CONDITIONS E OF AREA.

...GALE WARNING...
.LOW 57N48W 992 MB MOVING NE 30 KT. OVER ICE FREE FORECAST
WATERS WITHIN 420 NM W AND 240 NM S AND SE QUADRANTS WINDS 25 TO
35 KT. SEAS 8 TO 16 FT. ELSEWHERE WITHIN 300 NM E QUADRANT WINDS
20 TO 30 KT. SEAS 8 TO 14 FT.
.24 HOUR FORECAST LOW ABSORBED AND CONDITIONS DESCRIBED IN GALE
WARNING ABOVE.

...GALE WARNING...
.LOW 41N40W 1015 MB MOVING NE 15 KT. OVER FORECAST WATERS SE AND
E OF A FRONT FROM 48N35W TO 44N40W TO 31N41W WINDS 25 TO 35 KT.
SEAS 8 TO 14 FT. ELSEWHERE WITHIN 180 NM NW AND W OF THE FRONT
WINDS TO 25 KT. SEAS TO 11 FT.
.24 HOUR FORECAST LOW DISSIPATED WITH CONDITIONS MOVED E OF AREA.

...GALE WARNING...
.LOW 63N37W 990 MB MOVING NE 15 KT. OVER ICE FREE FORECAST
WATERS N OF 60N E OF GREENLAND WINDS 25 TO 40 KT. SEAS 9 TO 16
FT.
.24 HOUR FORECAST LOW AND CONDITIONS MOVED NE OF AREA.

...GALE WARNING...
.LOW 43N59W 1005 MB MOVING SE 15 KT. OVER FORECAST WATERS WITHIN
540 NM W AND SW QUADRANTS WINDS TO 25 KT. SEAS TO 8 FT.
.24 HOUR FORECAST LOW 41N52W 1003 MB. WITHIN 660 NM NW...1200 NM
SW...540 NM SE...AND 360 NM NE QUADRANTS...AND WITHIN 300 NM S
OF A FRONT FROM 50N35W TO LOW CENTER WINDS 25 TO 35 KT. SEAS 8
TO 14 FT.
.48 HOUR FORECAST LOW 37N52W 995 MB. WITHIN 420 NM W AND 480 NM
E SEMICIRCLES WINDS 35 TO 45 KT. SEAS 11 TO 20 FT. ELSEWHERE S
OF A LINE FROM 51N35W TO 42N65W WINDS 25 TO 35 KT. SEAS 8 TO 13
FT.

...GALE WARNING...
.48 HOUR FORECAST NEW LOW 64N37W 979 MB. OVER ICE FREE FORECAST
WATERS WITHIN 180 NM N AND 360 NM S QUADRANTS WINDS 35 TO 45 KT.
SEAS 10 TO 20 FT. ELSEWHERE WITHIN 660 NM W...600 NM S...AND 240
NM E AND N QUADRANTS WINDS 25 TO 35 KT. SEAS 8 TO 15 FT.

...HEAVY FREEZING SPRAY WARNING...
.MODERATE TO HEAVY FREEZING SPRAY OVER ICE FREE FORECAST WATERS
NW AND W OF A LINE FROM 57N58W TO 64N51W.
.24 HOUR FORECAST MODERATE TO HEAVY FREEZING SPRAY NW AND W OF A
LINE FROM 55N55W TO 62N49W.
.48 HOUR FORECAST MODERATE TO HEAVY FREEZING SPRAY NW AND W OF A
LINE FROM 53N53W TO 59N46W.

.SYNOPSIS AND FORECAST.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM OVER FORECAST
WATERS WITHIN 120 NM OF 45N48W.
.24 HOUR FORECAST CONDITIONS IMPROVED.

.HIGH 32N52W 1021 MB MOVING NE 20 KT.
.24 HOUR FORECAST HIGH DISSIPATED.

.48 HOUR FORECAST HIGH 35N72W 1021 MB.

.48 HOUR FORECAST HIGH 41N67W 1022 MB.

.48 HOUR FORECAST HIGH 48N57W 1022 MB.

.FORECASTER SOMMERVILLE. 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 0600 UTC MON FEB 20.
24 HOUR FORECAST VALID 0600 UTC TUE FEB 21.
48 HOUR FORECAST VALID 0600 UTC WED FEB 22.

.WARNINGS.

...ATLC GALE WARNING...
.COLD FRONT FROM LOW PRES NEAR 30N72W 1011 MB TO 27N71W TO
24N77W. N OF 27N WITHIN 90 NM E OF FRONT S TO SW WINDS 20 TO 25
KT. SEAS LESS THAN 8 FT.
.24 HOUR FORECAST LOW DISSIPATED. NEW COLD FRONT FROM 31N62W TO
24N70W. N OF FRONT N WINDS 20 TO 25 KT. SEAS TO 8 FT.
.42 HOUR FORECAST COLD FRONT FROM 31N54W TO 20N60W. N OF 25N E
OF FRONT TO 46W 20 TO 30 KT...EXCEPT TO 35 KT WITHIN 90 NM E OF
FRONT FROM 27N TO 30N.
.48 HOUR FORECAST COLD FRONT FROM 31N52W TO 18N60W. N OF 27N
WITHIN 150 NM E OF FRONT S TO SW WINDS 30 TO 35 KT. SEAS 10 TO
17 FT. ELSEWHERE N OF 25N E OF FRONT TO 43W S TO SW WINDS 20 TO
30 KT. SEAS 8 TO 14 FT. N OF 26N W OF FRONT TO 65W NW WINDS 20
TO 25 KT. SEAS 8 TO 12 FT.

.SYNOPSIS AND FORECAST.

.ATLC N OF 26N E OF 55W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN
NW SWELL.
.24 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.CARIBBEAN FROM 11N TO 12N BETWEEN 74W AND 77W NE TO E WINDS 20
TO 30 KT. SEAS TO 9 FT.
.24 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.CARIBBEAN S OF 18N W OF 85W E TO SE WINDS 20 TO 25 KT. SEAS
LESS THAN 8 FT.
.24 HOUR FORECAST S OF 18N W OF 86W E TO SE WINDS 20 TO 25 KT.
SEAS LESS THAN 8 FT.
.48 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.GULF OF MEXICO N OF 25N W OF 94W SE WINDS 20 TO 25 KT. SEAS
LESS THAN 8 FT.
.24 HOUR FORECAST TROUGH FROM 29N92W TO 19N94W. S OF 22N W OF
95W NW TO N WINDS 20 TO 30 KT. SEAS TO 8 FT.
.48 HOUR FORECAST TROUGH FROM 30N89W TO 26N87W TO 22N88W. WINDS
20 KT OR LESS. SEAS LESS THAN 8 FT.

.GULF OF MEXICO FROM 20N TO 22N BETWEEN 90W AND 92W SE 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 MUNDELL. NATIONAL HURRICANE CENTER.



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