FZNT01 KWBC 211606
HSFAT1
HIGH SEAS FORECAST FOR METAREA IV
NWS OCEAN PREDICTION CENTER WASHINGTON DC
1630 UTC TUE OCT 21 2025
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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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.
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).
FOR ANY TROPICAL CYCLONE INFORMATION BEYOND 48 HOURS REFERENCE
THE ASSOCIATED NWS TROPICAL CYCLONE FORECAST/ADVISORY (TCM).
SECURITE
NORTH ATLANTIC NORTH OF 31N TO 67N AND WEST OF 35W
ALL FORECASTS VALID OVER ICE FREE FORECAST WATERS
SYNOPSIS VALID 1200 UTC OCT 21.
24 HOUR FORECAST VALID 1200 UTC OCT 22.
48 HOUR FORECAST VALID 1200 UTC OCT 23.
.WARNINGS.
...STORM WARNING...
.COMPLEX LOW WITH MAIN CENTER NEAR 64N65W 993 MB MOVING NE 10
KT. BETWEEN A LINE FROM 67N61W TO 62N55W TO 60N53W TO THE W
COAST OF GREENLAND WINDS 25 TO 40 KT. SEAS 3 TO 4 M.
.06 HOUR FORECAST COMBINED LOW 65N63W 993 MB. BETWEEN A LINE
FROM 65N56W TO 60N51W AND THE W COAST OF GREENLAND WINDS 35 TO
50 KT. SEAS 3 TO 5.5 M.
.24 HOUR FORECAST LOW NEAR 67N57W 1001 MB. N OF 65N BETWEEN
THE W COAST OF GREENLAND AND 56W...AND BETWEEN 150 NM AND 240
NM SW QUADRANT...WINDS 25 TO 35 KT. SEAS 3 TO 4.5 M.
.48 HOUR FORECAST LOW MOVED N OF AREA WITH ASSOCIATED
CONDITIONS DIMINISHED.
...GALE WARNING...
.LOW 44N35W 996 MB MOVING NE 30 KT. WITHIN 360 NM W AND NW
QUADRANTS WINDS 25 TO 40 KT. SEAS 4 TO 6 M. ELSEWHERE FROM 34N
TO 49N E OF 46W WINDS 20 TO 30 KT. SEAS 3 TO 5 M.
.24 HOUR FORECAST ORIGINAL LOW MOVED WELL E OF AREA WITH A NEW
LOW TO FORM NEAR 40N38W 1004 MB. WITHIN 180 NM NW QUADRANT
WINDS 35 TO 45 KT. SEAS 4 TO 6 M. ELSEWHERE WITHIN 420 NM
NE...300 NM W AND SW...AND 360 NM NW QUADRANTS WINDS 25 TO
35 KT. SEAS 3 TO 5 M.
.48 HOUR FORECAST COMPLEX LOW WITH MEAN CENTER NEAR 38N37W
1008 MB. WITHIN 360 NM NE QUADRANT...AND 240 NM W SEMICIRCLE
WINDS 25 TO 40 KT. SEAS 3 TO 5.5 M. ELSEWHERE FROM 32N TO 46N
E OF 46W WINDS 20 TO 30 KT. SEAS 2.5 TO 4 M.
.SYNOPSIS AND FORECAST.
.COMPLEX INLAND LOW WITH MAIN CENTER 45N70W 1004 MB MOVING NE
15 KT. FROM 38N TO 49N BETWEEN 59W AND 73W WINDS 20 TO 30 KT.
SEAS TO 3 M.
.24 HOUR FORECAST COMPLEX LOW MERGED WITH LOW WELL INLAND
NEAR 53N80W 1000 MB. FROM 32N TO 44N BETWEEN 65W AND 78W
WINDS 20 TO 30 KT. SEAS TO 3 M.
.48 HOUR FORECAST INLAND LOW NEAR 51N74W 997 MB. FROM 35N TO
51N BETWEEN 53W AND 74W WINDS 20 TO 30 KT. SEAS 2.5 TO 3.5 M.
.24 HOUR FORECAST NEW LOW TO FORM NEAR 59N44W 1010 MB. WITHIN
240 NM NE AND 300 NM SE QUADRANTS WINDS 20 TO 30 KT. SEAS TO
3 M.
.48 HOUR FORECAST LOW MOVED E OF AREA NEAR 55N31W 1012 MB.
WITHIN 300 NM SW QUADRANT WINDS TO 25 KT. SEAS TO 2.5 M.
.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 58N TO 62N
BETWEEN 42W AND 51W...AND N OF 62N W OF 58W.
.24 HOUR FORECAST DENSE FOG FROM 56N TO 64N BETWEEN 37W AND
43W...AND WITHIN 60 NM OF THE W COAST OF GREENLAND N OF 62N.
.48 HOUR FORECAST DENSE FOG FROM 48N TO 60N BETWEEN 51W AND
65W...INCLUDING THE GULF OF SAINT LAWRENCE.
.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 1200 UTC TUE OCT 21.
24 HOUR FORECAST VALID 1200 UTC WED OCT 22.
48 HOUR FORECAST VALID 1200 UTC THU OCT 23.
.WARNINGS.
...CARIBBEAN TROPICAL STORM WARNING...
.TROPICAL STORM MELISSA NEAR 14.3N 71.7W 1003 MB AT 1500 UTC OCT
21 MOVING W OR 280 DEG AT 12 KT. MAXIMUM SUSTAINED WINDS 45 KT
GUSTS 55 KT. TROPICAL STORM FORCE WINDS WITHIN 100 NM NE
QUADRANT...70 NM SE QUADRANT...0 NM SW QUADRANT...AND 40 NM NW
QUADRANT. SEAS TO 4 M WITHIN 90 NM NE AND 45 NM NW QUADRANTS OF
THE CENTER. ELSEWHERE WITHIN 18N67W TO 17N73W TO 14N73W TO 13N70W
TO 13N68W TO 15N67W TO 18N67W WINDS 20 TO 33 KT. SEAS 2.5 TO 4.0
M.
.24 HOUR FORECAST TROPICAL STORM MELISSA NEAR 14.8N 73.5W.
MAXIMUM SUSTAINED WINDS 55 KT GUSTS 65 KT. TROPICAL STORM FORCE
WINDS WITHIN 110 NM NE QUADRANT...90 NM SE QUADRANT...30 NM SW
QUADRANT...AND 60 NM NW QUADRANT. SEAS 4 M OR GREATER
WITHIN 90 NM NE...75 NM NW...AND 45 NM S SEMICIRCLE WITH SEAS TO
6.5 M. ELSEWHERE WITHIN 17N71W TO 18N73W TO 17N77W TO 15N77W TO
13N74W TO 13N69W TO 17N71W WINDS 20 TO 33 KT. SEAS 2.5 TO 4.0 M.
.48 HOUR FORECAST TROPICAL STORM MELISSA NEAR 15.7N 74.5W.
MAXIMUM SUSTAINED WINDS 60 KT GUSTS 75 KT. TROPICAL STORM FORCE
WINDS WITHIN 110 NM NE QUADRANT...90 NM SE QUADRANT...30 NM SW
QUADRANT...AND 70 NM NW QUADRANT. SEAS 4 M OR GREATER
WITHIN 90 NM NE AND 105 NM NW QUADRANTS...AND 60 NM S SEMICIRCLE
WITH SEAS TO 7 M. ELSEWHERE WITHIN 18N72W TO 18N75W TO 16N77W TO
14N75W TO
14N73W TO 16N72W TO 18N72W WINDS 20 TO 33 KT. SEAS 3 TO 4 M.
REMAINDER OF AREA WITHIN 18N71W TO 19N76W TO 16N79W TO 15N78W TO
14N74W TO
16N71W TO 18N71W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN MIXED
SWELL.
FORECAST WINDS IN AND NEAR ACTIVE TROPICAL CYCLONES SHOULD BE
USED WITH CAUTION DUE TO UNCERTAINTY IN FORECAST TRACK...SIZE
AND INTENSITY.
.SYNOPSIS AND FORECAST.
.ATLC WITHIN 18N53W TO 18N62W TO 13N59W TO 12N56W TO 16N52W TO
18N53W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN N SWELL.
.12 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS
LESS THAN 2.5 M.
.ATLC WITHIN 31N37W TO 31N48W TO 30N41W TO 31N38W TO 31N37W
WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN W TO NW SWELL.
.24 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS
LESS THAN 2.5 M.
.REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.
$$
.FORECASTER CHRISTENSEN. NATIONAL HURRICANE CENTER.
