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NOAA>NWS>NCEP>OPC>Marine>Atlantic>High Seas>North Atlantic High Seas Forecast

North Atlantic High Seas Forecast

[Printable Version]   [Alt Link/Previous Versions]
FZNT01 KWBC 232215 CCA
HSFAT1

HIGH SEAS FORECAST FOR METAREA IV...CORRECTED 
NWS OCEAN PREDICTION CENTER WASHINGTON DC 
2230 UTC THU FEB 23 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS 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). 

CORRECTED 24 HOUR FORECAST LOW POSITION IN SECOND GALE WARNING

PAN PAN 

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

SYNOPSIS VALID 1800 UTC FEB 23 
24 HOUR FORECAST VALID 1800 UTC FEB 24 
48 HOUR FORECAST VALID 1800 UTC FEB 25 

.WARNINGS. 

...HURRICANE FORCE WIND WARNING... 
.LOW 53N41W 982 MB MOVING NE 35 KT AND RAPIDLY INTENSIFYING AND 
WILL TURN W AFTER 24 HOURS. WITHIN 360 NM SE QUADRANT WINDS 35 
TO 45 KT. SEAS 12 TO 20 FT. ELSEWHERE WITHIN 240 NM NE...360 NM 
SW...AND 120 NM NW QUADRANTS WINDS 25 TO 35 KT. SEAS 11 TO 18 
FT...EXCEPT NW QUADRANT 8 TO 11 FT. 
.24 HOUR FORECAST LOW E OF AREA 64N27W 948 MB. FROM 57N TO 61N 
BETWEEN 35W AND 43W...AND N OF 64N E OF 37W WINDS 35 TO 50 KT. 
SEAS 12 TO 22 FT...EXCEPT N OF 64N 8 TO 14 FT. ELSEWHERE FROM 
55N TO 61N BETWEEN 35W AND 47W...AND N OF 61N E OF 40W WINDS 25 
TO 35 KT. SEAS 9 TO 18 FT...EXCEPT N OF 61N TO 10 FT. 
.48 HOUR FORECAST LOW 63N40W 940 MB. OVER FORECAST WATERS 
BETWEEN 240 NM AND 420 NM S AND SW QUADRANTS WINDS 50 TO 75 KT. 
SEAS 30 TO 48 FT. ELSEWHERE WITHIN 90 NM N AND NW QUADRANTS AND 
BETWEEN 180 NM AND 660 NM S AND SW QUADRANTS WINDS 35 TO 50 KT. 
SEAS 18 TO 32 FT. ALSO WITHIN 180 NM NW SEMICIRCLE...780 NM S 
AND 660 NM W QUADRANTS AND FROM 42N TO 51N BETWEEN 35W AND 43W 
WINDS 25 TO 40 KT. SEAS 10 TO 20 FT. 

...GALE WARNING... 
.COMPLEX LOW WITH MEAN POSITION NEAR 47N45W 984 MB MOVING NE 35 
KT. EXCEPT WHERE NOTED WITH LOW 53N41W ABOVE...WITHIN 480 NM E 
AND SE QUADRANT WINDS 35 TO 45 KT. SEAS 14 TO 21 FT. ELSEWHERE 
WITHIN 840 NM E AND SE...600 NM SW...AND 360 NM NW QUADRANTS 
WINDS 25 TO 40 KT. SEAS 10 TO 18 FT. 
.24 HOUR FORECAST LOW E OF AREA. FROM 41N TO 55N BETWEEN 35W AND 
37W WINDS TO 25 KT. SEAS 14 TO 19 FT. 
.48 HOUR FORECAST CONDITIONS E OF AREA. 

...GALE WARNING... 
.FROM 31N TO 33N W OF 72W WINDS 20 TO 30 KT. SEAS TO 10 FT. 
.24 HOUR FORECAST LOW S OF AREA 29N76W 1004 MB. OVER FORECAST 
WATERS WITHIN 300 NM N AND 600 NM E QUADRANTS WINDS 25 TO 35 KT. 
SEAS 9 TO 15 FT. 
.48 HOUR FORECAST LOW 37N69W 1004 MB. WITHIN 360 NM E OF A LINE 
FROM 40N68W TO 31N65W WINDS 25 TO 35 KT. SEAS 9 TO 15 FT. 

...GALE WARNING... 
.12 HOUR FORECAST LOW 50N64W 997 MB. OVER FORECAST WATERS WITHIN 
420 NM SE QUADRANT WINDS 20 TO 30 KT. SEAS TO 8 FT. 
.24 HOUR FORECAST LOW 50N49W 999 MB. WITHIN 420 NM S SEMICIRCLE 
WINDS 25 TO 35 KT. SEAS 8 TO 13 FT. 
.48 HOUR FORECAST LOW E OF AREA. CONDITIONS DESCRIBED ABOVE WITH 
LOW 63N40W. 

...GALE WARNING... 
.FROM 59N TO 63N BETWEEN 52W AND 48W AREA OF NW WINDS 20 TO 30 
KT. SEAS TO 8 FT. 
.24 HOUR FORECAST LOW 63N52W 988 MB. EXCEPT WHERE NOTED ABOVE 
WITH LOW 64N27W...OVER ICE FREE FORECAST WATERS WITHIN 300 NM 
AND NW...AND 420 NM S QUADRANTS WINDS 25 TO 40 KT. SEAS 9 TO 18 
FT. 
.48 HOUR FORECAST LOW AND ASSOCIATED CONDITIONS ABSORBED BY LOW 
63N40W DESCRIBED ABOVE. 

...HEAVY FREEZING SPRAY WARNING... 
.MODERATE TO HEAVY FREEZING SPRAY OVER ICE FREE FORECAST WATERS 
N AND NW OF A LINE FROM 61N49W TO 57N60W. 
.24 HOUR FORECAST MODERATE TO HEAVY FREEZING SPRAY N AND NW OF A 
LINE FROM 60N45W TO 55N60W. 
.48 HOUR FORECAST MODERATE TO HEAVY FREEZING SPRAY N AND NW OF A 
LINE FROM 57N43W TO 52N54W. 

.SYNOPSIS AND FORECAST. 

.LOW 55N49W 995 MB MOVING E 10 KT. WITHIN 180 NM NW SEMICIRCLE 
WINDS TO 25 KT. SEAS TO 8 FT. 
.24 HOUR FORECAST LOW DISSIPATED AND CONDITIONS DESCRIBED ABOVE 
WITH LOW 63N52W. 

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 47N TO 55N 
BETWEEN 35W AND 46W AND FROM 40N TO 45N BETWEEN 73W AND 63W. 
.24 HOUR FORECAST DENSE FOG WITHIN 420 NM N OF A LINE FROM 
37N75W TO 45N48W AND OVER ICE FREE FORECAST WATERS N OF 59N W OF 
55W. 
.48 HOUR FORECAST DENSE FOG WITHIN 420 NM N OF A LINE FROM 
36N75W TO 42N49W. 

.HIGH 33N62W 1019 MB MOVING NE 25 KT. 
.24 HOUR FORECAST HIGH 37N51W 1027 MB. 
.48 HOUR FORECAST HIGH 37N44W 1029 MB. 

.48 HOUR FORECAST HIGH 51N55W 1024 MB. 

.FORECASTER CLARK. 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 1800 UTC THU FEB 23.
24 HOUR FORECAST VALID 1800 UTC FRI FEB 24.
48 HOUR FORECAST VALID 1800 UTC SAT FEB 25.

.WARNINGS.

...ATLC GALE WARNING...
.LOW PRES NEAR 28N79W 1001 MB. BETWEEN 90 NM AND 270 NM NE 
QUADRANT E TO SE WINDS 30 TO 35 KT. SEAS 9 TO 13 FT. ELSEWHERE N 
OF 22N BETWEEN 67W AND 73W SE TO S WINDS 20 TO 30 KT. SEAS 8 TO 
11 FT. 
.24 HOUR FORECAST LOW PRES NEAR 29N76W 1004 MB WITH WARM FRONT 
FROM 31N71W TO 27N66W. N OF 28N BETWEEN 65W AND 69W SE WINDS 30 
TO 35 KT. SEAS 11 TO 15 FT. ELSEWHERE N OF 23N BETWEEN 63W AND 
69W SE WINDS 20 TO 30 KT. SEAS 8 TO 12 FT. REMAINDER AREA N OF 
21N W OF 62W AND E OF BAHAMAS WINDS 20 KT OR LESS. SEAS 8 TO 10 
FT IN SE SWELL.
.48 HOUR FORECAST LOW PRES WELL N OF AREA. N OF 29N BETWEEN 60W 
AND 65W SE TO S WINDS 20 TO 25 KT. SEAS 8 TO 10 FT. ELSEWHERE N 
OF 28N BETWEEN 60W AND 70W WINDS 20 KT OR LESS. SEAS TO 9 FT IN 
MIXED SWELL. 

.SYNOPSIS AND FORECAST.

.ATLC COLD FRONT FROM 31N44W TO 23N50W THEN STATIONARY TO 
18N65W. N OF 27N WITHIN 240 NM E OF FRONT S WINDS 20 TO 25 KT. 
SEAS 8 TO 12 FT. ELSEWHERE N OF LINE FROM 31N40W TO 24N50W TO 
21N60W TO 31N67W WINDS 20 KT OR LESS. SEAS 8 TO 12 FT IN N 
SWELL...EXCEPT 12 TO 15 FT N OF 27N BETWEEN 48W AND 60W.
.24 HOUR FORECAST STATIONARY FRONT FROM 31N39W TO 23N49W. N OF 
LINE FROM 31N35W TO 18N50W TO 26N53W TO 31N53W WINDS 20 KT OR 
LESS. SEAS TO 9 FT IN N SWELL.
.48 HOUR FORECAST DISSIPATING STATIONARY FRONT FROM 31N39W TO 
25N46W. WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.CARIBBEAN COLD FRONT FROM 21N78W TO 18N83W. N OF 18N E OF COLD 
FRONT...INCLUDING THE WINDWARD PASSAGE  S TO SW WINDS 20 TO 25 
KT. SEAS LESS THAN 8 FT. 
.18 HOUR FORECAST FRONT DISSIPATED. WINDS 20 KT OR LESS. SEAS 
LESS THAN 8 FT.

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

$$
.FORECASTER COBB. NATIONAL HURRICANE CENTER.


NOAA/ National Weather Service
National Centers for Environmental Prediction
NOAA Center for Weather and Climate Prediction (NCWCP)
Ocean Prediction Center
Mr. Darin Figurskey
Chief, Ocean Forecast Branch
NCWCP, W/NP41
5830 University Research Court
College Park, Maryland 20740-3818

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Page last modified:  Monday, July 25, 2016 12:55:28 UTC