High Seas Forecast
Issued by NWS

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000
FZNT01 KWBC 220350
HSFAT1

HIGH SEAS FORECAST FOR METAREA IV
NWS OCEAN PREDICTION CENTER WASHINGTON DC
0430 UTC WED FEB 22 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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).

PAN PAN

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

SYNOPSIS VALID 0000 UTC FEB 22
24 HOUR FORECAST VALID 0000 UTC FEB 23
48 HOUR FORECAST VALID 0000 UTC FEB 24

.WARNINGS.

...HURRICANE FORCE WIND WARNING...
.LOW 63N35W 983 MB MOVING NE 05 KT. OVER ICE FREE FORECAST
WATERS WITHIN 240 NM NW...600 NM S...AND 780 NM SW QUADRANTS
WINDS 25 TO 40 KT. SEAS 8 TO 17 FT.
.06 HOUR FORECAST LOW 63N35W 980 MB. WITHIN 120 NM W AND NW
QUADRANTS WINDS 40 TO 50 KT. SEAS 9 TO 18 FT.
.24 HOUR FORECAST LOW E OF AREA 64N33W 972 MB. WITHIN 180 NM W
SEMICIRCLE WINDS 50 TO 65 KT. SEAS 18 TO 25 FT. ELSEWHERE WITHIN
240 NM W SEMICIRCLE WINDS 40 TO 50 KT. SEAS 15 TO 20 FT. ALSO
WITHIN 780 NM S AND 540 NM W QUADRANTS WINDS 25 TO 40 KT. SEAS 8
TO 17 FT.
.48 HOUR FORECAST LOW E OF AREA 65N34W 979 MB. WITHIN 180 NM NW
QUADRANT WINDS 40 TO 55 KT. SEAS 15 TO 23 FT. ELSEWHERE WITHIN
480 NM SW QUADRANT WINDS 25 TO 40 KT. SEAS 9 TO 17 FT.

...STORM WARNING...
.LOW 37N55W 998 MB MOVING NE 10 KT. OVER FORECAST WATERS WITHIN
720 NM W AND 660 NM E SEMICIRCLES WINDS 25 TO 40 KT. SEAS 8 TO
16 FT.
.06 HOUR FORECAST LOW 36N55W 994 MB. WITHIN 480 NM SE AND 240 NM
NW QUADRANTS WINDS 40 TO 50 KT. SEAS 15 TO 19 FT.
.24 HOUR FORECAST LOW 39N52W 991 MB. FRONT TO EXTEND FROM 44N50W
TO 34N47W TO 31N48W. WITHIN 240 NM E OF THE FRONT WINDS 40 TO 50
KT. SEAS 15 TO 23 FT. ELSEWHERE WITHIN 420 NM S AND SW QUADRANTS
WINDS 35 TO 45 KT. SEAS 16 TO 23 FT. ALSO FROM 31N TO 47N
BETWEEN 66W AND 39W WINDS 25 TO 35 KT. SEAS 10 TO 20 FT.
.48 HOUR FORECAST COMPLEX LOW WITH FIRST CENTER 53N37W 982 MB
AND SECOND CENTER 50N40W 984 MB. SE AND E OF A LINE FROM 58N35W
TO 52N50W TO 41N57W TO 31N59W WINDS 25 TO 40 KT. SEAS 10 TO 21
FT.

...GALE WARNING...
.LOW 50N38W 1009 MB MOVING NE 35 KT. OVER FORECAST WATERS WITHIN
300 NM S OF A FRONT FROM 51N35W TO LOW CENTER TO 45N46W WINDS 25
TO 40 KT. SEAS 8 TO 13 FT.
.24 HOUR FORECAST LOW AND CONDITIONS MOVED E OF AREA.

 ...HEAVY FREEZING SPRAY WARNING...
.MODERATE TO HEAVY FREEZING SPRAY OVER ICE FREE FORECAST WATERS
NW OF A LINE FROM 56N55W TO 60N45W.
.24 HOUR FORECAST MODERATE TO HEAVY FREEZING SPRAY N OF 59N
BETWEEN 60W AND 45W.
.48 HOUR FORECAST MODERATE TO HEAVY FREEZING SPRAY N OF 60N W OF
GREENLAND.

.SYNOPSIS AND FORECAST.

.24 HOUR FORECAST NEW LOW 56N57W 1001 MB. OVER FORECAST WATERS
WITHIN 360 NM SE AND 420 NM NE AND E QUADRANTS WINDS TO 25 KT.
SEAS LESS THAN 8 FT.
.48 HOUR FORECAST LOW 56N50W 996 MB. WITHIN 300 NM N SEMICIRCLE
WINDS 20 TO 30 KT. SEAS TO 10 FT.

.48 HOUR FORECAST FROM 31N TO 34N BETWEEN 80W AND 69W WINDS 20
TO 30 KT. SEAS TO 12 FT.

.DENSE FOG. 24 HOUR VSBY OCCASIONALLY LESS THAN 1 NM OVER
FORECAST WATERS FROM 42N TO 48N BETWEEN 51W AND 42W.
.48 HOUR FORECAST DENSE FOG NW OF A LINE FROM 45N60W TO 39N69W
AND FROM 48N TO 54N E OF 40W.

.HIGH 45N65W 1024 MB MOVING E 50 KT.
.24 HOUR FORECAST HIGH MOVED E OF AREA.

.HIGH 40N69W 1025 MB MOVING S 15 KT.
.24 HOUR FORECAST HIGH 33N69W 1019 MB.
.48 HOUR FORECAST HIGH 33N61W 1023 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 0000 UTC WED FEB 22.
24 HOUR FORECAST VALID 0000 UTC THU FEB 23.
48 HOUR FORECAST VALID 0000 UTC FRI FEB 24.

.WARNINGS.

...GALE WARNING...

.ATLC COLD FRONT FROM 31N53W TO 23N60W. E OF THE FRONT TO 52W N
OF 27N S TO SW WINDS 25 TO 35 KT...INCREASING TO 40 KT. SEAS 8
TO 10 FT. ELSEWHERE E OF THE FRONT TO 45W N OF 24N S TO SW WINDS
20 TO 30 KT. SEAS 8 TO 10 FT. N OF 29N W OF THE FRONT TO 66W N
TO NW WINDS 20 TO 25 KT. SEAS 9 TO 12 FT. ELSEWHERE W OF THE
FRONT TO 70W N OF 27N WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN N
SWELL.
.24 HOUR FORECAST COLD FRONT FROM 31N45W TO 19N57W THEN
STATIONARY TO 21N66W. E OF FRONT TO 41W N OF 26N S WINDS 25 TO
35 KT. SEAS 9 TO 15 FT. ELSEWHERE N OF 24N E OF FRONT TO 40W
WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN MIXED SWELL. N OF 29N W
OF FRONT TO 59W W TO NW WINDS 20 TO 25 KT. SEAS 14 TO 18 FT.
ELSEWHERE W OF FRONT TO 67W N OF 24N WINDS 20 KT OR LESS. SEAS 8
TO 13 FT PRIMARILY IN N SWELL.
.30 HOUR FORECAST COLD FRONT FROM 31N45W TO 21N60W THEN
STATIONARY TO 21N65W. E OF FRONT TO 40W N OF 25N S TO SW WINDS
20 TO 30 KT. SEAS 8 TO 14 FT. W OF THE FRONT TO 54W N OF 30N W
TO NW WINDS 20 TO 25 KT. SEAS 12 TO 17 FT. REMAINDER AREA W OF
FRONT TO 67W N OF 22N WINDS 20 KT OR LESS. SEAS TO 14 FT
PRIMARILY IN N SWELL.
.48 HOUR FORECAST COLD FRONT FROM 31N41W TO 22N56W. N OF 20N W
OF THE FRONT TO 64W WINDS 20 KT OR LESS. SEAS 8 TO 11 FT IN
MIXED N AND NW SWELL.

.ATLC 18 HOUR FORECAST LOW PRES W OF AREA. FROM 24N TO 31N W OF
78W SE WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT.
.24 HOUR FORECAST LOW PRES W OF AREA...COLD FRONT FROM 26N80W TO
23N80W. FROM 24N TO 31N W OF 75W SE WINDS 20 TO 25
KT...INCREASING TO 30 KT. SEAS LESS THAN 8 FT...BUILDING TO 10
FT.
.48 HOUR FORECAST LOW PRES NEAR 28N79W 1004 MB TRAILING COLD
FRONT S TO 21N76W. FROM 28N TO 30N BETWEEN 73W AND 76W E TO SE
WINDS 30 TO 35 KT. SEAS 12 TO 13 FT. ELSEWHERE WITHIN 310 NM LOW
NE SEMICIRCLE E TO SE WINDS 20 TO 30 KT. SEAS 8 TO 13 FT.
REMAINDER AREA FROM 22N TO 30N BETWEEN 67W AND 73W SE WINDS 20
TO 30 KT. SEAS 8 TO 14 FT.

.SYNOPSIS AND FORECAST.

.CARIBBEAN 24 HOUR FORECAST COLD FRONT FROM 22N80W TO 16N85W.
FROM 19N TO 21N W OF THE FRONT NW WINDS 20 TO 25 KT. SEAS LESS
THAN 8 FT.
.24 HOUR FORECAST COLD FRONT FROM 22N82W TO 16N86W. S OF 22N W
OF FRONT NW WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT.
.48 HOUR FORECAST COLD FRONT FROM 20N75W TO 14N81W. WINDWARD
PASSAGE SW WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT.

.GULF OF MEXICO COLD FRONT FROM 30N85W TO 18N92W AND TROUGH FROM
30N89W TO 25N91W. FROM 25N TO 27N NW TO 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 RAMOS. NATIONAL HURRICANE CENTER.



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