North Atlantic High Seas Forecast

Hurricane Force Warnings in Effect
North Atlantic High Seas Forecast

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FZNT01 KWBC 170353
HSFAT1

HIGH SEAS FORECAST FOR METAREA IV 
NWS OCEAN PREDICTION CENTER WASHINGTON DC 
0430 UTC SUN NOV 17 2019 

CCODE/1:31:04:01:00/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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS 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. 

METAREA IV BULLETIN WILL ONLY BE BROADCAST FROM THE INMARSAT 
AOE SATELLITE. PLEASE ENSURE YOUR RECEIVER IS POINTED 
CORRECTLY. 

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 
ATLANTIC ICE SERVICE AT HTTPS://OCEAN.WEATHER.GOV/ATL_TAB.SHTML 
(LOWERCASE EXCEPT CAPITAL A IN ATL). 

SECURITE 

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

SYNOPSIS VALID 0000 UTC NOV 17. 
24 HOUR FORECAST VALID 0000 UTC NOV 18. 
48 HOUR FORECAST VALID 0000 UTC NOV 19. 

.WARNINGS. 

...HURRICANE FORCE WIND WARNING... 
.COMPLEX LOW WITH FIRST CENTER 55N54W 976 MB MOVING E 15 KT AND 
SECOND CENTER 55N46W 978 MB MOVING NW 10 KT. WITHIN 300 NM W 
SEMICIRCLE OF FIRST CENTER AND 300 NM N QUADRANT OF SECOND 
CENTER WINDS 40 TO 50 KT. SEAS 12 TO 24 FT. ELSEWHERE WITHIN 540 
NM N...900 NM S...AND 780 NM SW QUADRANTS OF FIRST CENTER...360 
NM N AND 480 NM E QUADRANTS OF SECOND CENTER...AND 360 NM E OF A 
FRONT FROM SECOND CENTER TO 51N45W TO 45N46W TO 40N50W WINDS 25 
TO 40 KT. SEAS 10 TO 20 FT.  
.24 HOUR FORECAST COMPLEX LOW WITH FIRST CENTER 54N40W 962 MB 
AND SECOND CENTER 58N42W 962 MB. WITHIN 300 NM S AND 420 NM W 
QUADRANTS OF FIRST CENTER AND 120 NM N AND NW QUADRANTS OF 
SECOND CENTER WINDS 50 TO 65 KT. SEAS 26 TO 50 FT. ALSO WITHIN 
360 NM S AND SE AND 480 NM W QUADRANTS OF FIRST CENTER AND 300 
MN N QUADRANT OF SECOND CENTER WINDS 40 TO 50 KT. SEAS 18 TO 36 
FT. ELSEWHERE WITHIN 600 NM S AND SE AND 660 NM W QUADRANTS OF 
FIRST CENTER AND 480 NM N QUADRANT OF SECOND CENTER WINDS 25 TO 
40 KT. SEAS 12 TO 26 FT.  
.48 HOUR FORECAST LOW E OF AREA 58N31W 976 MB. WITHIN 720 NM SW 
AND 480 NM NW QUADRANTS WINDS 30 TO 45 KT. SEAS 20 TO 38 FT. 

...STORM WARNING... 
.LOW 31N78W 998 MB MOVING NE 15 KT. N OF 31N AND WITHIN 120 NM W 
AND 240 NM N QUADRANTS WINDS 45 TO 60 KT. SEAS 14 TO 24 FT. 
ELSEWHERE WITHIN 180 NM W...540 NM N...AND 780 NM NE QUADRANTS 
WINDS 30 TO 45 KT. SEAS 10 TO 18 FT. 
.24 HOUR FORECAST LOW 33N73W 996 MB. WITHIN 180 NM W AND 360 NM 
N QUADRANTS WINDS 35 TO 50 KT. SEAS 14 TO 26 FT. ELSEWHERE 
WITHIN 360 NM W...540 NM N...AND 840 NM NE QUADRANTS WINDS 25 TO 
40 KT. SEAS 10 TO 18 FT. 
.48 HOUR FORECAST LOW 40N68W 990 MB. WITHIN 300 NM W AND 660 NM 
E SEMICIRCLES WINDS 25 TO 40 KT. SEAS 10 TO 18 FT.  

.SYNOPSIS AND FORECAST. 

.LOW 45N38W 1010 MB MOVING NE 10 KT. WITHIN 180 NM E AND SE OF A 
LINE FROM LOW CENTER TO 39N43W WINDS 20 TO 30 KT. SEAS 8 TO 13 
FT. 
.24 HOUR FORECAST LOW ABSORBED BY HURRICANE FORCE LOW ABOVE. 

.48 HOUR FORECAST LOW 65N57W 999 MB. WITHIN 360 NM S AND SW 
QUADRANTS WINDS 20 TO 30 KT. SEAS TO 9 FT. 

.LIGHT TO MODERATE FREEZING SPRAY W OF A LINE FROM 58N62W TO 
67N57W AND FROM 50N TO 56N W OF 51W. 
.24 HOUR FORECAST LIGHT TO MODERATE FREEZING SPRAY W OF LINE 
FROM 50N53W TO 53N53W TO 60N59W TO 67N57W. 
.48 HOUR FORECAST LIGHT TO MODERATE FREEZING SPRAY W OF LINE 
FROM 60N62W TO 67N56W. 

.DENSE FOG. VSBY OCCASIONALLY 1 NM OR LESS FROM 46N TO 61N 
BETWEEN 37W AND 63W. 
.24 HOUR FORECAST DENSE FOG FROM 46N TO 61N E OF 46W.
.48 HOUR FORECAST CONDITIONS IMPROVED.

.24 HOUR FORECAST HIGH 44N57W 1031 MB. 
.48 HOUR FORECAST HIGH 38N38W 1030 MB. 

.48 HOUR FORECAST HIGH 33N38W 1030 MB. 

.FORECASTER ACHORN. 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 SUN NOV 17.
24 HOUR FORECAST VALID 0000 UTC MON NOV 18.
48 HOUR FORECAST VALID 0000 UTC TUE NOV 19.

.WARNINGS.

...ATLC GALE WARNING...
.ATLC COLD FRONT FROM 31N72W TO 27N74W TO 21.5N77W. WITHIN 
30N78W TO 29N78W TO 30N80W TO 31N80W TO 31N78W TO 30N78W NW TO N 
WINDS 30 TO 40 KT. SEAS 14 TO 19 FT IN MIXED SWELL. ELSEWHERE 
WITHIN 29N76W TO 28N80W TO 29N81W TO 31N81W TO 31N77W TO 29N76W
WINDS 20 TO 30 KT. SEAS 8 TO 13 FT IN MIXED SWELL.
.24 HOUR FORECAST COLD FRONT FROM 31N68W TO 27N70W TO 20N74W.
WITHIN 29N67W TO 27N74W TO 28N79W TO 31N80W TO 31N65W TO 29N67W 
WINDS 20 TO 30 KT. SEAS 12 TO 18 FT IN MIXED SWELL. ELSEWHERE
WITHIN 25N74W TO 26N80W TO 30N81W TO 31N80W TO 30N67W TO 25N74W 
WINDS 20 KT OR LESS. SEAS 8 TO 13 FT IN MIXED NE AND NW SWELL.
.48 HOUR FORECAST WEAKENING COLD FRONT STALLING FROM 31N66W TO
27N67W TO 20N73.5W. WITHIN 24N75W TO 27N77W TO 27N80W TO 31N80W 
TO 31N72W TO 24N75W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN MIXED
NE AND NW SWELL. WITHIN 30.5N60.5W TO 30N61W TO 30.5N61.5W TO 
31N62.5W
TO 31N60.5W TO 30.5N60.5W S WINDS 20 TO 25 KT. SEAS 9 TO 10 FT.
ELSEWHERE WITHIN 30N58W TO 29N62W TO 27N65W TO 31N68W TO 31N57W 
TO 30N58W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN MIXED SWELL.

.SYNOPSIS AND FORECAST.

.ATLC TROUGH FROM 22N55W TO 15N55.5W TO 13N58W. WITHIN 18N49W 
TO 18N50W TO 19N52W TO 20N51W TO 20N49W TO 18N49W E TO SE WINDS 
20 TO 25 KT. SEAS 8 TO 10 FT. ELSEWHERE WITHIN 20N35W TO 17N49W
TO 24N57W TO 27N54W TO 27N35W TO 20N35W WINDS 20 KT OR LESS. 
SEAS 8 TO 10 FT IN MIXED NE AND NW SWELL.
.24 HOUR FORECAST TROUGH FROM 25N55W TO 18N55W TO 16N59W. 
WITHIN 19N50W TO 19N53W TO 21N56W TO 24N56W TO 23N52W TO 19N50W 
E TO SE WINDS 20 TO 25 KT. SEAS 8 TO 10 FT. ELSEWHERE WITHIN 
17N35W TO 17N45W TO 20N57W TO 25N57W TO 29N35W TO 17N35W WINDS 20
KT OR LESS. SEAS 8 TO 10 FT IN MIXED NE AND NW SWELL.
.48 HOUR FORECAST TROUGH FROM 26N58W TO LOW NEAR 19N58W 1010 MB
TO 17N60W. WITHIN 22N52W TO 20N56W TO 23N59W TO 26N58W TO 
26N54W TO 22N52W E TO SE WINDS 20 TO 25 KT. SEAS 9 TO 11 FT IN N 
SWELL. ELSEWHERE WITHIN 13N35W TO 20N56W TO 31N55W TO 24N46W TO
27N35W TO 13N35W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN MIXED NE
AND NW SWELL.

.CARIBBEAN COLD FRONT FROM 21N78W TO 16N85W. WITHIN 17N84W TO 
17N87W TO 20N86W TO 20N85W TO 19N83W TO 17N84W NW TO N WINDS 20 
TO 25 KT. SEAS 8 TO 9 FT.
.12 HOUR FORECAST COLD FRONT FROM 20N77W TO 18N80W TO 15N83W. 
CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.
.24 HOUR FORECAST COLD FRONT FROM 20N75W TO 18N78W TO 12N84W. 
WITHIN 13N82W TO 12N84W TO 14N84W TO 14N83W TO 15N82W TO 13N82W 
NW TO N WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT.
.36 HOUR FORECAST COLD FRONT FROM 20N75W TO 18N77.5W TO 
11N83.5W. 
CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.GULF OF MEXICO WITHIN 25N83W TO 24N84W TO 27N86W TO 29N84W TO
27N83W TO 25N83W NW TO N WINDS 20 TO 25 KT. SEAS 8 TO 9 FT.
.03 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS 
LESS THAN 8 FT.

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

$$
.FORECASTER LEWITSKY. NATIONAL HURRICANE CENTER.