FZNT01 KWBC 200426
HSFAT1 0430
HIGH SEAS FORECAST FOR METAREA IV
NWS OCEAN PREDICTION CENTER WASHINGTON DC
0430 UTC SUN OCT 20 2024
SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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
[email protected](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 0000 UTC OCT 20.
24 HOUR FORECAST VALID 0000 UTC OCT 21.
48 HOUR FORECAST VALID 0000 UTC OCT 22.
.WARNINGS.
…GALE WARNING…
.LOW 60N41W 986 MB MOVING E 15 KT. N OF 50N BETWEEN 38W AND 51W
WINDS 25 TO 40 KT…HIGHEST W OF CENTER. SEAS 9 TO 20 FT. ALSO N
OF 54N E OF 41W WINDS LESS THAN 25 KT. SEAS 8 TO 12 FT.
.24 HOUR FORECAST LOW E OF AREA 59N28W 990 MB. FROM 54N TO 60N E
OF 46W WINDS 25 TO 40 KT. SEAS 9 TO 19 FT.
.48 HOUR FORECAST LOW E OF AREA. CONDITIONS DIMINISHED.
…GALE WARNING…
.FROM 38N TO 50N E OF 47W AREA OF NE WINDS 25 TO 35 KT. SEAS 9 TO
19 FT.
.18 HOUR FORECAST NEW LOW 52N39W 1002 MB. WITHIN 540 NM S AND SW
QUADRANTS WINDS 25 TO 35 KT. SEAS 9 TO 16 FT.
.24 HOUR FORECAST LOW 52N33W 1004 MB. WITHIN 720 NM SW QUADRANT
WINDS 25 TO 35…HIGHEST S OF CENTER. SEAS 9 TO 17 FT.
.48 HOUR FORECAST LOW E OF AREA AND CONDITIONS DESCRIBED BY LOW
56N45W BELOW.
…GALE WARNING…
.COMPLEX LOW WITH FIRST LOW 31N66W 1014 MB MOVING S 05 KT AND
SECOND LOW 33N56W 1014 MB NEARLY STATIONARY. WITHIN 780 NM NE AND
360 NM NW QUADRANTS OF FIRST LOW WINDS 25 TO 35 KT. SEAS 8 TO 14
FT.
.24 HOUR FORECAST FIRST LOW DISSIPATED AND SECOND LOW 32N57W 1015
MB. S OF 38N BETWEEN 40W AND 70W AREA OF NE TO E WINDS 20 TO 30
KT. SEAS 8 TO 13 FT.
.48 HOUR FORECAST LOW 33N56W 1014 MB. S OF 40N E OF 60W WINDS TO
25 KT. SEAS TO 11 FT.
…GALE WARNING…
.06 HOUR FORECAST NEW LOW 67N59W 980 MB. N OF 57N W OF 51W WINDS
25 TO 35 KT. SEAS 8 TO 13 FT.
.24 HOUR FORECAST LOW N OF AREA AND NEW LOW INLAND 63N66W 985 MB.
N OF 60N W OF 51W WINDS TO 25 KT. SEAS TO 10 FT.
.48 HOUR FORECAST COMPLEX LOW WITH MEAN CENTER 65N59W 980 MB. NE
OF A LINE FROM 60N50W TO 64N65W WINDS 25 TO 35 KT. SEAS 8 TO 13
FT.
…GALE WARNING…
.48 HOUR FORECAST NEW LOW 56N45W 990 MB. BETWEEN 240 NM AND 840
NM SE QUADRANT WINDS 25 TO 35 KT. SEAS 9 TO 15 FT.
…GALE WARNING…
.48 HOUR FORECAST NEW LOW 51N53W 992 MB. WITHIN 540 NM S AND 660
NM SW QUADRANTS…INCLUDING THE GULF OF SAINT LAWRENCE…WINDS 25
TO 35 KT. SEAS 8 TO 13 FT…EXCEPT WITHIN THE GULF OF SAINT
LAWRENCE SEAS TO 10 FT.
.SYNOPSIS AND FORECAST.
.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM NW OF A LINE FROM
60N53W TO 67N62W.
.24 HOUR FORECAST DENSE FOG N OF 61N E OF 38W AND FROM 60N TO 66N
W OF GREENLAND.
.48 HOUR FORECAST DENSE FOG WITHIN 180 NM NE OF A LINE FROM
56N50W TO 60N52W TO 65N63W AND WITHIN 120 NM OF 51N50W.
.LIGHT FREEZING SPRAY N OF 64N WITHIN 60 NM SE OF GREENLAND.
.24 HOUR FORECAST LITTLE CHANGE.
.48 HOUR FORECAST LITTLE CHANGE.
.FORECASTER ANDERSON. OCEAN PREDICTION CENTER.
NWS 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 OCT 20.
24 HOUR FORECAST VALID 0000 UTC MON OCT 21.
48 HOUR FORECAST VALID 0000 UTC TUE OCT 22.
.WARNINGS.
…ATLC HURRICANE WARNING…
.HURRICANE OSCAR NEAR 21.3N 72.2W 987 MB AT 0300 UTC OCT 20
MOVING W OR 270 DEG AT 10 KT. MAXIMUM SUSTAINED WINDS 75 KT
GUSTS 90 KT. TROPICAL STORM FORCE WINDS WITHIN 40 NM N
SEMICIRCLE AND 30 NM S SEMICIRCLE. SEAS 12 FT OR GREATER WITHIN
75 NM N SEMICIRCLE AND 30 NM S SEMICIRCLE WITH SEAS TO 15 FT.
ELSEWHERE WITHIN 22N71W TO 22N72W TO 21N73W TO 21N72W TO 21N71W
TO
22N71W WINDS 20 TO 33 KT. SEAS 10 TO 12 FT. REMAINDER OF AREA
WITHIN
29N62W TO 31N61W TO 31N80W TO 24N80W TO 21N71W TO 29N62W WINDS 20
KT OR LESS. SEAS 8 TO 10 FT IN MIXED SWELL.
.24 HOUR FORECAST HURRICANE OSCAR NEAR THE COAST NEAR 20.6N
74.8W. MAXIMUM SUSTAINED WINDS 70 KT GUSTS 85 KT. TROPICAL STORM
FORCE WINDS WITHIN 30 NM OF CENTER EXCEPT 20 NM SW QUADRANT. SEAS
12 FT OR GREATER WITHIN 60 NM N SEMICIRCLE WITH SEAS TO 13 FT.
ELSEWHERE WITHIN 22N74W TO 22N75W TO 22N76W TO 21N76W TO
20N74W TO 22N74W WINDS 20 TO 33 KT. SEAS 10 TO 12 FT. REMAINDER
OF AREA WITHIN 31N60W TO 31N81W TO 24N81W TO 25N76W TO 23N70W TO
26N68W
TO 31N60W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN MIXED SWELL.
.36 HOUR FORECAST TROPICAL STORM OSCAR INLAND NEAR 20.6N 75.8W.
MAXIMUM SUSTAINED WINDS 60 KT GUSTS 75 KT.
.48 HOUR FORECAST TROPICAL STORM OSCAR OVER WATER NEAR 21.4N
76.0W. MAXIMUM SUSTAINED WINDS 50 KT GUSTS 60 KT. TROPICAL STORM
FORCE WINDS WITHIN 30 NM W SEMICIRCLE…50 NM NE QUADRANT AND 40
NM SE QUADRANT. SEAS 12 FT OR GREATER WITHIN 60 NM N AND 30 NM S
SEMICIRCLE WITH SEAS TO 14 FT. ELSEWHERE WITHIN 22N74W TO 23N76W
TO 22N77W TO 21N77W TO
21N75W TO 22N74W WINDS 20 TO 33 KT. SEAS 10 TO 12 FT. REMAINDER
OF AREA WITHIN 30N69W TO 31N79W TO 29N81W TO 24N80W TO 26N77W TO
27N71W
TO 30N69W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT 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 18N35W TO 16N41W TO 14N49W TO 11N47W TO 10N42W TO
12N35W TO 18N35W WINDS 20 KT OR LESS. SEAS 8 FT IN NE SWELL.
.24 HOUR FORECAST WITHIN 20N35W TO 19N41W TO 16N50W TO 12N49W TO
14N42W TO 15N35W TO 20N35W WINDS 20 KT OR LESS. SEAS 8 FT IN E
SWELL.
.48 HOUR FORECAST WITHIN 24N35W TO 24N44W TO 16N57W TO 14N52W TO
