HIGH SEAS FORECAST FOR METAREA IV 
NWS OCEAN PREDICTION CENTER WASHINGTON DC 
0430 UTC FRI SEP 22 2017 

CCODE/2:31:04:11:00/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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS 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. 
ONLY YOU KNOW THE WEATHER AT YOUR POSITION. REPORT IT TO THE 
NATIONAL WEATHER SERVICE. EMAIL US AT 
VOSOPS@NOAA.GOV(LOWERCASE). 

ATLANTIC ICEBERG ANALYSIS AND OUTLOOK PRODUCTS...COURTESY OF 
THE U.S. COAST GUARD INTERNATIONAL ICE PATROL...CAN BE FOUND 
ON THE OCEAN PREDICTION CENTER WEB PAGE AT 
HTTP://WWW.OPC.NCEP.NOAA.GOV/ATL_TAB.SHTML(LOWERCASE). 

PAN PAN 

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

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

.WARNINGS. 

...TROPICAL STORM WARNING...
.POST-TROPICAL CYCLONE JOSE NEAR 39.5N 68.4W 987 MB AT 0300 UTC
SEP 22 MOVING W OR 270 DEG AT 2 KT. MAXIMUM SUSTAINED WINDS 45
KT GUSTS 55 KT. TROPICAL STORM FORCE WINDS WITHIN 190 NM N
SEMICIRCLE...130 NM SE QUADRANT AND 160 NM SW QUADRANT.  SEAS 12
FT OR GREATER WITHIN 300 NM E SEMICIRCLE...240 NM SW QUADRANT
AND 210 NM NW QUADRANT WITH SEAS TO 22 FT.
.24 HOUR FORECAST POST-TROPICAL CYCLONE JOSE NEAR 39.5N 69.0W.
MAXIMUM SUSTAINED WINDS 40 KT GUSTS 50 KT. TROPICAL STORM FORCE
WINDS WITHIN 60 NM E SEMICIRCLE...90 NM SW QUADRANT AND 120 NM
NW QUADRANT. SEAS 12 FT OR GREATER WITHIN 180 NM W SEMICIRCLE 
AND 150 NM NE AND 225 NM SE QUADRANTS WITH SEAS TO 16 FT.
.48 HOUR FORECAST POST-TROPICAL CYCLONE JOSE NEAR 39.1N 67.3W.
MAXIMUM SUSTAINED WINDS 30 KT GUSTS 40 KT. SEAS TO 12 FT WITHIN 
240 NM E AND SE QUADRANTS.
.72 HOUR FORECAST POST-TROPICAL CYCLONE JOSE NEAR 38.8N 66.5W.
MAXIMUM SUSTAINED WINDS 25 KT GUSTS 35 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST...DISSIPATED.

...STORM WARNING... 
.COMPLEX LOW STRENGHTHENING WITH FIRST LOW 51N40W 983 MB MOVING 
E 25 KT AND SECOND LOW 51N36W 986 MB MOVING NE 25 KT. WITHIN 240 
NM NW AND 300 NM S AND SW QUADRANTS WINDS 30 TO 45 KT. SEAS 10 
TO 19 FT. ELSEWHERE FROM 42N TO 55N E OF 49W WINDS 25 TO 40 KT. 
SEAS 8 TO 16 FT.  
.06 HOUR FORECAST COMPLEX LOW WITH MEAN CENTER 51N36W 974 MB. 
WITHIN 420 NM SW AND 180 NM N AND NW QUADRANTS WINDS 40 TO 55 
KT. SEAS 16 TO 26 FT.  
.24 HOUR FORECAST LOW E OF AREA. FROM 45N TO 57N E OF 39W AREA 
OF NW WINDS 20 TO 30 KT. SEAS 10 TO 23 FT. 
.48 HOUR FORECAST LOW E OF AREA. N OF 63N E OF 37W WINDS 25 TO 
40 KT. SEAS 10 TO 16 FT.

...GALE WARNING... 
.LOW E OF AREA 61N28W 990 MB NEARLY STATIONARY. FROM 61N TO 64N 
E OF 37W WINDS 25 TO 35 KT. SEAS 10 TO 16 FT. 
.24 HOUR FORECAST LOW E OF AREA 63N27W 993 MB. OVER FORECAST 
WATERS N OF 61N E OF 38W WINDS LESS THAN 25 KT. SEAS TO 10 FT. 
.48 HOUR FORECAST LOW DISSIPATED WITH CONDITIONS DESCRIBED ABOVE 
IN SECOND WARNING.

...GALE WARNING...
.42 HOUR FORECAST LOW 52N54W 993 MB. WITHIN 300 NM S AND 240 NM 
NW QUADRANTS WINDS 25 TO 35 KT. SEAS TO 9 FT.
.48 HOUR FORECAST LOW 52N47W 989 MB. WITHIN 420 NM NW AND 360 NM 
S AND SW QUADRANTS WINDS 25 TO 40 KT. SEAS 8 TO 14 FT. 

.SYNOPSIS AND FORECAST. 

.FROM 61N TO 66N BETWEEN 50W AND 56W WINDS 20 TO 30 KT. SEAS TO 
9 FT. 
.24 HOUR FORECAST CONDITIONS DIMINISHED. 

.18 HOUR FORECAST LOW 57N58W 1007 MB. WITHIN 180 NM SW QUADRANT 
WINDS TO 25 KT. SEAS LESS THAN 8 FT.
.24 HOUR FORECAST LOW 57N57W 1007 MB. WINDS LESS THAN 25 KT. 
SEAS LESS THAN 8 FT.

.HIGH 36N50W 1021 MB NEARLY STATIONARY. 
.24 HOUR FORECAST HIGH 34N49W 1021 MB. 
.48 HOUR FORECAST HIGH 35N54W 1021 MB. 

.HIGH 48N62W 1024 MB MOVING SE 25 KT. 
.24 HOUR FORECAST HIGH 43N50W 1023 MB. 
.48 HOUR FORECAST HIGH 40N44W 1022 MB. 

.(END OF FORECAST)