FZNT01 KWBC 192140
HSFAT1
HIGH SEAS FORECAST FOR METAREA IV
NWS OCEAN PREDICTION CENTER WASHINGTON DC
2230 UTC FRI DEC 19 2025
CCODE/2:31:04:01:00/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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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.
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.PHP
(ALL LOWERCASE).
SECURITE
NORTH ATLANTIC NORTH OF 31N TO 67N AND WEST OF 35W
ALL FORECASTS VALID OVER ICE FREE FORECAST WATERS
SYNOPSIS VALID 1800 UTC DEC 19.
24 HOUR FORECAST VALID 1800 UTC DEC 20.
48 HOUR FORECAST VALID 1800 UTC DEC 21.
.WARNINGS.
...HURRICANE FORCE WIND WARNING...
.COMPLEX INLAND LOW WITH MAIN CENTER 49N75W 977 MB MOVING NE 30
KT AND RAPIDLY INTENSIFYING. FROM 35N TO 44N BETWEEN 66W AND 71W
WINDS 40 TO 55 KT. SEAS 4 TO 7 M. ELSEWHERE FROM 31N TO 52N W OF
56W...INCLUDING THE GULF OF SAINT LAWRENCE...WINDS 25 TO 40 KT.
SEAS 3 TO 6 M.
.24 HOUR FORECAST COMBINED LOW 57N61W 948 MB. WITHIN 120 NM NE
OF A LINE FROM 58N46W TO 61N55W...FROM 45N TO 54N BETWEEN 46W
AND 52W...WITHIN 240 NM SE...AND N AND NW QUADRANTS WINDS 45 TO
60 KT. SEAS 4 TO 8 M. ELSEWHERE WITHIN 600 NM NE...1260 NM S AND
SE...60 NM SW...AND 420 NM NW QUADRANTS WINDS 30 TO 45 KT. SEAS
3 TO 6 M.
.30 HOUR FORECAST LOW 58N58W 945 MB. WITHIN 150 NM W AND SW
QUADRANTS...AND WITHIN 120 NM N AND NE OF A LINE FROM 62N55W TO
60N51W TO 59N45W TO THE SW GREENLAND COAST WINDS 55 TO 70 KT.
SEAS 7 TO 12 M...HIGHEST NEAR 63N53W.
.48 HOUR FORECAST COMPLEX LOW WITH MAIN LOW 63N55W 960 MB.
WITHIN 120 NM E AND SE...AND SW QUADRANTS WINDS 40 TO 55 KT.
SEAS 6 TO 10 M. ELSEWHERE N AND NW OF A LINE FROM 46N35W TO
52N53W TO 60N65W WINDS 25 TO 40 KT. SEAS 3 TO 8 M...HIGHEST NEAR
60N50W.
...STORM WARNING...
.LOW JUST E OF AREA 60N31W 962 MB MOVING E 10 KT. WITHIN 420 NM
W AND SW QUADRANTS WINDS 45 TO 60 KT. SEAS 7 TO 11 M. ELSEWHERE
WITHIN 1080 NM SW AND 600 NM NW QUADRANTS
WINDS 30 TO 45 KT. SEAS 4 TO 8 M.
.24 HOUR FORECAST LOW E OF AREA 59N25W 985 MB. EXCEPT WHERE
DESCRIBED WITH LOW 57N61W ABOVE...N OF 59N E OF 41W WINDS 30 TO
45 KT. SEAS 4 TO 7 M.
.48 HOUR FORECAST LOW WELL E OF AREA WITH CONDITIONS DESCRIBED
WITH LOW 63N55W ABOVE.
...GALE WARNING...
.LOW S OF THE AREA. FROM 31N TO 37N BETWEEN 40W AND 60W WINDS 25
TO 35 KT. SEAS 3 TO 5 M.
.24 HOUR FORECAST LOW S OF AREA. FROM 31N TO 37N BETWEEN 39W AND
62W WINDS TO 25 KT. SEAS 2.5 TO 4 M.
.48 HOUR FORECAST NEW LOW TO FORM NEAR 42N37W 1015 MB. WITHIN
120 NM OF LOW CENTER...EXCEPT 420 NM S AND SE QUADRANTS...WINDS
20 TO 30 KT. SEAS 2.5 TO 4 M.
...GALE WARNING...
.36 HOUR FORECAST INLAND LOW 49N77W 995 MB. FROM 36N TO 45N W OF
64W S TO SW WINDS 20 TO 30 KT. SEAS TO 3 M.
.48 HOUR FORECAST INLAND LOW 48N66W 998 MB. BETWEEN 180 NM AND
480 NM SE SEMICIRCLE WINDS 25 TO 35 KT. SEAS 3 TO 4.5 M.
ELSEWHERE FROM 35N TO 50N W OF 54W...INCLUDING ALL OF THE GULF
OF SAINT LAWRENCE S OF 50N...WINDS 20 TO 30 KT. SEAS TO 3 M.
...HEAVY FREEZING SPRAY WARNING...
.MODERATE TO HEAVY FREEZING SPRAY N OF 54N W OF 54W...AND N OF
60N BETWEEN 45W AND 54W. ELSEWHERE LIGHT TO MODERATE FREEZING
SPRAY N OF 53N W OF 41W.
.24 HOUR FORECAST MODERATE TO HEAVY FREEZING SPRAY OVER THE GULF
OF SAINT LAWRENCE W OF 50W...AND FROM 59N TO 63W W OF 64W.
ELSEWHERE LIGHT TO MODERATE FREEZING SPRAY N OF 63N W OF
GREENLAND...FROM 58N TO 64W W OF 62W...AND FROM 46N TO 51N W OF
58W...INCLUDING THE GULF OF SAINT LAWRENCE.
.48 HOUR FORECAST MODERATE TO HEAVY FREEZING SPRAY W AND NW OF A
LINE FROM 53N53W TO
56N55W TO 60N61W TO 64N60W. ELSEWHERE LIGHT TO MODERATE FREEZING
SPRAY FROM 49N TO 58N W OF 49W...INCLUDING THE GULF OF SAINT
LAWRENCE N OF 49N...AND N OF 58N W OF 57W.
.SYNOPSIS AND FORECAST.
.N OF 60N W OF 56W W TO SW WINDS 20 TO 30 KT. SEAS 2.5 TO 4 M.
.24 HOUR FORECAST CONDITIONS DESCRIBED WITH LOW 57N61W ABOVE.
.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 43N TO 50N W
OF 64W...FROM 51N TO 56N W OF 49W...N OF 52N E OF 43W...AND FROM
60N TO 65N BETWEEN 56W AND 62W.
.24 HOUR FORECAST DENSE FOG FROM 55N TO 59N W OF 58W...AND FROM
59N TO 65N W OF 42W.
.48 HOUR FORECAST DENSE FOG N OF A LINE FROM 57N35W TO 55N42W TO
61N59W TO 64N64W...EXCEPT N OF 62N E OF GREENLAND...AND FROM 47N
TO 52N W OF 51W.
.FORECASTER MILLS. OCEAN PREDICTION CENTER.
NATIONAL HURRICANE CENTER MIAMI FL
ATLANTIC FROM 07N TO 31N W OF 35W INCLUDING CARIBBEAN SEA AND
GULF OF AMERICA
SYNOPSIS VALID 1800 UTC FRI DEC 19.
24 HOUR FORECAST VALID 1800 UTC SAT DEC 20.
48 HOUR FORECAST VALID 1800 UTC SUN DEC 21.
.WARNINGS.
.NONE.
.SYNOPSIS AND FORECAST.
.ATLC COLD FRONT FROM 31N77W TO 28N80.5W. E OF COLD FRONT WITHIN
31N71W TO 31N76W TO 30N76W TO 30N74W TO 29N72W TO 30N71W TO
31N71W SW WINDS 20 TO 25 KT. SEAS 2.5 TO 3.0 M. W OF COLD FRONT
WITHIN 31N77W TO 31N79W TO 30.5N78.5W TO 30.5N77.5W TO 31N77W W
WINDS 20 TO 25 KT. SEAS 2.5 TO 3.0 M. ELSEWHERE WITHIN 31N75W TO
31N80W TO 30N79W TO 28N75W TO 29N73W TO 29N72W TO 31N75W WINDS
20 KT OR LESS. SEAS 2.5 TO 3.0 M IN E TO SE SWELL.
.18 HOUR FORECAST COLD FRONT FROM 31N67W TO 24N80W. CONDITIONS
IMPROVE. WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.
.ATLC LOW PRES NEAR 29N56W 1015 MB. COLD FRONT FROM LOW TO
25N57W. WARM FROM FROM LOW TO 31N54.5W. E OF LOW AND COLD FRONT
WITHIN 31N53W TO 31N54W TO 30N54W TO 28N54W TO 29N52W TO 31N53W
SE TO S WINDS 20 TO 25 KT. SEAS 2.5 TO 3.5 M IN MIXED N AND SE
SWELL. W OF THE WARM FRONT AND N OF THE COLD FRONT WITHIN 31N55W
TO 31N59W TO 29N59W TO 29N58W TO 29N57W TO 31N55W NE WINDS 20 TO
30 KT. SEAS 4.0 TO 5.0 M IN NE SWELL. ELSEWHERE WITHIN 31N50W TO
29N58W TO 31N64W TO 25N62W TO 23N59W TO 26N53W TO 31N50W WINDS
20 KT OR LESS. SEAS 2.5 TO 4.0 M IN MIXED N AND SE SWELL.
.24 HOUR FORECAST LOW PRES NEAR 31N56W 1017 MB. TROUGH FROM LOW
TO 24N57.5W. E OF LOW AND TROUGH WITHIN 31N51W TO 31N52.5W TO
30.5N52W TO 30.5N51W TO 31N51W S WINDS 20 TO 25 KT. SEAS 2.5 TO
3.0 M IN SE SWELL. ELSEWHERE WITHIN 31N45W TO 31N59W TO 26N50W TO
28N47W TO 31N45W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN MIXED
NE AND SE SWELL.
.48 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS
LESS THAN 2.5 M.
.ATLC WITHIN 31N35W TO 31N45W TO 15N60W TO 06N52W TO 07N35W TO
31N35W...INCLUDING IN ATLANTIC EXPOSURES AND PASSAGES...WINDS 20
KT OR LESS. SEAS 2.5 TO 3.5 M IN MIXED N AND E SWELL.
.24 HOUR FORECAST WITHIN 29N35W TO 29N36W TO 27N37W TO 26N37W TO
26N35W TO 29N35W E WINDS 20 TO 25 KT. SEAS 2.5 TO 3.0 M.
ELSEWHERE WITHIN 31N35W TO 26N50W TO 19N57W TO 06N51W TO 07N35W
TO 31N35W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.5 M IN MIXED N AND E
SWELL.
.48 HOUR FORECAST WITHIN 31N35W TO 21N44W TO 17N61W TO 06N52W TO
13N42W TO 07N35W TO 31N35W...INCLUDING IN ATLANTIC EXPOSURES AND
PASSAGES...WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN MIXED N AND
E SWELL.
.CARIBBEAN WITHIN 12N75W TO 12N76W TO 11N76W TO 11N75W TO 11N74W
TO 12N75W NE WINDS 20 TO 25 KT. SEAS 2.5 TO 3.0 M. ELSEWHERE
WITHIN 12N76W TO 13N77W TO 12N78W TO 11N78W TO 10N77W TO 11N76W
TO 12N76W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN NE TO E
SWELL.
.24 HOUR FORECAST WITHIN 12N74W TO 13N76W TO 12N76W TO 11N76W TO
11N74W TO 12N74W NE TO E WINDS 20 TO 25 KT. SEAS 2.5 TO 3.0 M.
ELSEWHERE WITHIN 13N76W TO 14N79W TO 10N79W TO 10N78W TO 11N75W
TO 12N76W TO 13N76W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN NE
TO E SWELL.
.48 HOUR FORECAST WITHIN 12N75W TO 12N77W TO 11N77W TO 11N75W TO
12N75W NE WINDS 20 TO 25 KT. SEAS 2.5 TO 3.0 M. ELSEWHERE WITHIN
12N75W TO 13N77W TO 13N79W TO 12N80W TO 10N80W TO 09N78W TO
12N75W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN NE TO E SWELL.
.REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.
$$
.FORECASTER ADAMS. NATIONAL HURRICANE CENTER.
