HIGH SEAS FORECAST FOR METAREA IV 
NWS OCEAN PREDICTION CENTER WASHINGTON DC 
1030 UTC THU NOV 20 2008 
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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS 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 
SECURITE 
NORTH ATLANTIC NORTH OF 31N TO 67N AND WEST OF 35W 
SYNOPSIS VALID 0600 UTC NOV 20. 
24 HOUR FORECAST VALID 0600 UTC NOV 21. 
48 HOUR FORECAST VALID 0600 UTC NOV 22. 
.WARNINGS. 

STORM WARNING
.LOW 47N60W 982 MB MOVING N 20 KT THEN 30 KT AFTER 12 HOURS. 
FRONT EXTENDS FROM LOW CENTER TO 45N55W TO 40N53W TO 31N55W. 
WITHIN 180 NM W AND NW SEMICIRCLES AND WITHIN 180 NM E OF FRONT 
N OF 39N WINDS 35 TO 45 KT. SEAS 10 TO 19 FT. ALSO FROM 31N TO 
43N BETWEEN 57W AND 66W WINDS 25 TO 35 KT. SEAS 15 TO 24 FT. 
ELSEWHERE FROM 43N TO 56N BETWEEN 47W AND 66W AND WITHIN 240 NM 
NE AND E OF FRONT N OF 35N WINDS 25 TO 35 KT. SEAS 9 TO 15 FT.
.12 HOUR FORECAST LOW INLAND 52N60W 980 MB. FROM 59N TO 61N 
BETWEEN 45W AND 51W AND WITHIN 180 NM NW OF A LINE FROM 55N60W 
TO 59N45W WINDS 40 TO 50 KT. SEAS 12 TO 18 FT.
.24 HOUR FORECAST LOW 58N59W 977 MB. FRONT TO EXTEND FROM LOW 
CENTER TO 62N57W TO 60N50W TO 41N45W. WITHIN 240 NM W AND NW OF 
FRONT W OF 57W AND WITHIN 120 NM NE OF FRONT E OF 57W AND N OF 
58N...WINDS 40 TO 55 KT. SEAS 15 TO 24 FT. ELSEWHERE WITHIN 540 
NM N AND 300 NM NW QUADRANTS...240 NM S SEMICIRCLE AND WITHIN 
240 NM NE AND E OF FRONT E OF 57W WINDS 25 TO 40 KT. SEAS 12 TO 
22 FT.
.48 HOUR FORECAST LOW 63N58W 980 MB. WITHIN 180 NM S AND SE 
SEMICIRCLES WINDS 35 TO 50 KT. SEAS 17 TO 26 FT. ELSEWHERE N OF 
59N W OF 48W AND W OF A LINE FROM 59N35W TO 53N40W WINDS 25 TO 
40 KT. SEAS 11 TO 21 FT.

STORM WARNING
.36 HOUR FORECAST LOW 37N69W 1009 MB. COLD FRONT TO EXTEND SW 
FROM CENTER TO 31N73W. W OF FRONT N OF 33N AND WITHIN 120 NM E 
OF FRONT S OF 35N WINDS 25 TO 35 KT. SEAS TO 12 FT.
.48 HOUR FORECAST LOW 41N63W 996 MB. COLD FRONT TO EXTEND FROM 
LOW CENTER TO 37N62W TO 31N67W. FROM 37N TO 42N BETWEEN 64W AND 
67W AND WITHIN 180 NM E OF FRONT N OF 36N WINDS 35 TO 50 KT. 
SEAS 13 TO 22 FT. ELSEWHERE WITHIN 300 NM OF LOW CENTER AND N OF 
33N BETWEEN THE FRONT AND 76W WINDS 25 TO 40 KT. SEAS 10 TO 19 
FT. ALSO W OF A LINE FROM 48N52W TO 42N50W TO 31N63W WINDS 20 TO 
30 KT. SEAS TO 10 FT.

STORM WARNING
.42 HOUR FORECAST NEW LOW 63N36W 998 MB. OVER FORECAST WATERS 
WITHIN 180 NM N AND NW QUADRANTS WINDS 40 TO 55 KT. SEAS 13 TO 
19 FT. ELSEWHERE WITHIN 240 NM OF CENTER EXCEPT 180 NM SW 
QUADRANT WINDS 25 TO 40 KT. SEAS 11 TO 17 FT.
.48 HOUR FORECAST LOW E OF AREA NEAR 65N32W 996 MB. N OF 63N E 
OF 38W WINDS 25 TO 35 KT. SEAS 13 TO 16 FT.

GALE WARNING
.OVER FORECAST WATERS FROM 37N TO 44N E OF 44W AREA OF SE WINDS 
25 TO 40 KT. SEAS 11 TO 18 FT. ELSEWHERE N OF A LINE FROM 31N38W 
TO 37N47W AND S OF 59N WINDS 20 TO 30 KT. SEAS 8 TO 14 FT. 
.24 HOUR FORECAST CONDITIONS MERGED WITH LOW 58N59W DESCRIBED 
ABOVE. 

HEAVY FREEZING SPRAY WARNING
.OVER FORECAST WATERS FROM 59N TO 62N W OF 58W AREA OF LIGHT TO 
MODERATE FREEZING SPRAY. 
.24 HOUR FORECAST W AND NW OF A LINE FROM 67N54W TO 60N62W AREA 
OF MODERATE TO HEAVY FREEZING SPRAY. 
.48 HOUR FORECAST N OF 60N W OF 60W AREA OF MODERATE TO HEAVY 
FREEZING SPRAY.
.SYNOPSIS AND FORECAST. 
.EXCEPT WHERE NOTED IN WARNINGS SECTION OVER FORECAST WATERS E 
OF 73W AND W OF A LINE FROM 62N58W TO 59N47W TO 37N47W TO 31N53W 
WINDS 20 TO 30 KT. SEAS 8 TO 14 FT...EXCEPT S OF 38N BETWEEN 66W 
AND 72W 13 TO 21 FT IN NW SWELL.
.24 HOUR FORECAST EXCEPT WHERE NOTED IN WARNINGS SECTION N OF A 
LINE FROM 33N35W TO 40N47W TO 48N51W AND ALSO N OF 42N BETWEEN 
51W AND 65W WINDS 20 TO 30 KT. SEAS 8 TO 16 FT. 
.48 HOUR FORECAST EXCEPT WHERE NOTED IN WARNINGS SECTION N AND 
NW OF A LINE FROM 54N35W TO 50N56W WINDS 20 TO 30 KT. SEAS 8 TO 
15 FT. 
.OVER FORECAST WATERS N OF 63N E OF GREENLAND AREA OF NW WINDS 
20 TO 30 KT. SEAS TO 10 FT. 
.12 HOUR FORECAST CONDITIONS DIMINISHED. 
.24 HOUR FORECAST NEW LOW 39N65W 1009 MB. FROM 33N TO 39N W OF 
54W WINDS TO 25 KT. SEAS TO 12 FT. 
.48 HOUR FORECAST LOW DISSIPATED WITH CONDITIONS MERGED WITH LOW 
41N63W DESCRIBED IN WARNINGS SECTION. 
.OVER FORECAST WATERS FROM 44N TO 55N BETWEEN 45W AND 55W AND 
FROM 51N TO 57N E OF 45W AREAS OF DENSE FOG OCCASIONALLY 
REDUCING VISIBILITY TO BELOW 1 NM. 
.24 HOUR FORECAST FROM 50N TO 61N E OF 49W AND ALSO FROM 59N TO 
63N BETWEEN 49W AND 56W AREAS OF DENSE FOG OCCASIONALLY REDUCING 
VISIBILITY TO BELOW 1 NM. 
.48 HOUR FORECAST CONDITIONS MOVED E OF AREA.
.48 HOUR FORECAST HIGH 50N39W 1035 MB.
.(END OF FORECAST)