FZNT01 KWBC 120342
HSFAT1 0430
HIGH SEAS FORECAST FOR METAREA IV
NWS OCEAN PREDICTION CENTER WASHINGTON DC
0430 UTC SAT OCT 12 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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).
THE NATIONAL WEATHER SERVICE IS ACCEPTING PUBLIC COMMENTS UNTIL
OCTOBER 16 2024 ON A PROPOSAL TO REPLACE FEET WITH METERS WHEN
DESCRIBING SEAS IN A VARIETY OF NATIONAL MARINE CENTER TEXT AND
GRAPHICAL PRODUCTS FOR THE HIGH SEAS AREAS ONLY.
TO LEARN MORE PLEASE VISIT (WEB ADDRESS LOWERCASE)
HTTPS://OCEAN.WEATHER.GOV/PROPOSED-METERS.PHP
FROM OCTOBER 15 TO APRIL 1, DUE TO THE CLIMATOLOGY OF THE NORTH
ATLANTIC AND THE FREQUENCY AND VOLUME OF WEATHER HAZARDS, ALONG
WITH CUSTOMER FEEDBACK, HIGH SEAS FORECASTS WILL BE LIMITED TO
WINDS OF 25 TO 35 KNOTS AND HIGHER, AND SEAS OF 12 FEET OR
GREATER, ALONG WITH FREEZING SPRAY, DENSE FOG, VOLCANIC ASH,
AND ANYTHING TROPICAL (INCLUDING A DEPRESSION). LESSER
CONDITIONS WILL BE INCLUDED FOR WARNING CONDITIONS AND TO
PRESERVE CONTINUITY WHERE APPROPRIATE.
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 12.
24 HOUR FORECAST VALID 0000 UTC OCT 13.
48 HOUR FORECAST VALID 0000 UTC OCT 14.
.WARNINGS.
…HURRICANE FORCE WIND WARNING…
.LOW 54N46W 973 MB MOVING NW 30 KT THEN TURNING MORE SW AFTER 12
HOURS. WITHIN 360 NM N AND 300 NM NE QUADRANTS AND 120 NM NE AND
E OF FRONT FROM LOW CENTER TO 50N40W TO 46N39W WINDS 40 TO 55 KT.
SEAS 13 TO 26 FT. ELSEWHERE FROM 40N TO 61N E OF 50W AND WITHIN
300 NM E AND SE OF FRONT FROM 40N40W TO 33N50W WINDS 25 TO 40 KT.
SEAS 8 TO 18 FT.
.06 HOUR FORECAST LOW 56N49W 965 MB. WITHIN 240 NM NE QUADRANT
WINDS 50 TO 65 KT. SEAS 16 TO 28 FT.
.24 HOUR FORECAST LOW MOVED INLAND NEAR 54N61W 977 MB. FROM 54N
TO 60N W OF 50W AND FROM 36N TO 60N BETWEEN 60W AND 71W WINDS 25
TO 40 KT. SEAS 8 TO 16 FT…EXCEPT FROM 55N TO 60N W OF 50W SEAS
16 TO 27 FT.
.48 HOUR FORECAST LOW DISSIPATED AND CONDITIONS MERGED WITH LOW
55N42W DESCRIBED BELOW.
…TROPICAL STORM WARNING…
.TROPICAL STORM LESLIE NEAR 29.3N 47.9W 1001 MB AT 0300 UTC OCT
12 MOVING NE OR 035 DEG AT 19 KT. MAXIMUM SUSTAINED WINDS 45 KT
GUSTS 55 KT. TROPICAL STORM FORCE WINDS WITHIN 70 NM NE
QUADRANT…90 NM SE QUADRANT…60 NM SW QUADRANT…AND 0 NM NW
QUADRANT. SEAS 12 FT OR GREATER WITHIN 120 NM OF CENTER WITH
SEAS TO 20 FT.
.24 HOUR FORECAST TROPICAL STORM LESLIE NEAR 34.8N 39.5W 1003
MB. MAXIMUM SUSTAINED WINDS 45 KT GUSTS 55 KT. TROPICAL STORM
FORCE
WINDS WITHIN 80 NM S SEMICIRCLE…50 NM NE QUADRANT AND 0 NM NW
QUADRANT. SEAS 12 FT OR GREATER WITHIN 150 NM SE QUADRANT AND 240
NM SW QUADRANT WITH SEAS TO 18 FT. ELSEWHERE S OF 37N E OF 44W
WINDS 20 TO 33 KT. SEAS 8 TO 16 FT. ALSO WITHIN 420 NM SW
QUADRANT WINDS LESS THAN 25 KT. SEAS TO 11 FT.
.36 HOUR FORECAST POST-TROPICAL CYCLONE LESLIE NEAR 36.7N
33.6W 1003 MB. MAXIMUM SUSTAINED WINDS 40 KT GUSTS 50 KT.
.48 HOUR FORECAST POST-TROPICAL CYCLONE LESLIE NEAR 37.1N
28.3W 1002 MB. MAXIMUM SUSTAINED WINDS 35 KT GUSTS 45 KT.
TROPICAL STORM FORCE WINDS WITHIN 80 NM S SEMICIRCLE…30 NM NE
QUADRANT AND 20 NM NW QUADRANT. SEAS 12 FT OR GREATER WITHIN 60
NM NE
QUADRANT…120 NM SE QUADRANT…180 NM SW QUADRANT…AND 150 NM
NW QUADRANT WITH SEAS TO 19 FT. ELSEWHERE WITHIN 480 NM W
SEMICIRCLE WINDS LESS THAN 25 KT. SEAS TO 10 FT.
…STORM WARNING…
.LOW INLAND 55N59W 970 MB MOVING E 10 KT. BETWEEN 120 NM AND 360
NM N QUADRANT WINDS 40 TO 50 KT. SEAS 16 TO 26 FT. ELSEWHERE
BETWEEN 120 NM AND 540 NM N QUADRANT AND FROM 38N TO 54N W OF 50W
WINDS 25 TO 40 KT. SEAS 10 TO 18 FT. ALSO WITHIN 240 NM E AND 120
NM N QUADRANTS WINDS 20 TO 30 KT. SEAS 8 TO 16 FT.
.24 HOUR FORECAST FROM 50N TO 55N E OF 52W WINDS 25 TO 35 KT.
SEAS 12 TO 17 FT. ELSEWHERE WITHIN 120 NM N…540 NM E…AND 240
NM W QUADRANTS WINDS LESS THAN 25 KT. SEAS 8 TO 15 FT.
.48 HOUR FORECAST LOW AND ASSOCIATED CONDITIONS ABSORBED BY LOW
55N42W DESCRIBED BELOW.
…STORM WARNING…
.12 HOUR FORECAST NEW LOW 47N64W 988 MB. FROM 38N TO 49N W OF
60W WINDS 25 TO 35 KT. SEAS TO 11 FT.
.24 HOUR FORECAST LOW 49N51W 980 MB. FROM 40N TO 49N BETWEEN 47W
AND 65W WINDS 35 TO 50 KT. SEAS 10 TO 21 FT. ELSEWHERE FROM 37N
TO 51N BETWEEN 35W AND 69W WINDS 25 TO 35 KT. SEAS 8 TO 15 FT.
.48 HOUR FORECAST COMPLEX LOW WITH MEAN CENTER NEAR 55N42W 978
MB. WITHIN 240 NM NW OF A LINE FROM 55N47W TO 58N38W WINDS 40 TO
55 KT. SEAS 18 TO 30 FT. ELSEWHERE FROM 40N TO 60N E OF 62W AND N
OF 60N E OF GREENLAND WINDS 25 TO 40 KT. SEAS 8 TO 21
FT…HIGHEST NEAR 49N40W AND WITHIN 300 NM NW OF THE LINE
MENTIONED ABOVE.
…STORM WARNING…
.24 HOUR FORECAST NEW LOW 58N45W 978 MB. WITHIN 120 NM NW OF A
FRONT FROM 57N48W TO LOW CENTER TO 60N39W WINDS 45 TO 60 KT. SEAS
18 TO 33 FT. ELSEWHERE WITHIN 300 NM NW SEMICIRCLE E OF 50W WINDS
30 TO 45 KT. SEAS 12 TO 25 FT. ALSO FROM 56N TO 64N E OF 50W
WINDS 20 TO 30 KT. SEAS 8 TO 16 FT.
.48 HOUR FORECAST LOW DISSIPATED AND ASSOCIATED CONDITIONS
ABSORBED BY LOW 55N42W DESCRIBED ABOVE.
…GALE WARNING…
.COMPLEX LOW WITH FIRST CENTER 32N56W 1006 MB MOVING E 25 KT AND
SECOND CENTER S OF AREA. S OF 35N BETWEEN 54W AND 71W WINDS 25 TO
35 KT. SEAS 8 TO 15 FT. ELSEWHERE S OF 35N W OF 71W WINDS LESS
THAN 25 KT. SEAS TO 10 FT.
.24 HOUR FORECAST FIRST CENTER DISSIPATED AND SECOND CENTER S OF
AREA. S OF 33N BETWEEN 53W AND 63W WINDS LESS THAN 25 KT. SEAS TO
10 FT.
.48 HOUR FORECAST LOW 31N51W 1013 MB. S OF 33N BETWEEN 48W AND
57W WINDS TO 25 KT. SEAS TO 8 FT.
…GALE WARNING…
.24 HOUR FORECAST NEW LOW 65N53W 994 MB. N OF 63N W OF GREENLAND
N WINDS 25 TO 40 KT. SEAS 8 TO 16 FT. ELSEWHERE N OF 61N W OF
GREENLAND WINDS LESS THAN 25 KT. SEAS 8 TO 17 FT IN MIXED SWELL.
.48 HOUR FORECAST LOW 63N51W 999 MB. N OF 63N W OF GREENLAND N
WINDS 25 TO 35 KT. SEAS TO 12 FT. ELSEWHERE N OF 59N W OF 47W
WINDS LESS THAN 25 KT. SEAS 8 TO 14 FT IN MIXED SWELL.
.SYNOPSIS AND FORECAST.
.48 HOUR FORECAST LOW INLAND 41N77W 1005 MB. WITHIN 480 NM E AND
SE QUADRANTS WINDS TO 25 KT. SEA STO 8 FT.
.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 57N TO 61N W OF
61W.
.24 HOUR FORECAST DENSE FOG FROM 57N TO 61N BETWEEN 41W AND 56W.
.48 HOUR FORECAST CONDITIONS IMPROVED.
.FORECASTER JOSEPH. 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 SAT OCT 12.
24 HOUR FORECAST VALID 0000 UTC SUN OCT 13.
48 HOUR FORECAST VALID 0000 UTC MON OCT 14.
.WARNINGS.
…ATLC TROPICAL STORM WARNING…
.TROPICAL STORM LESLIE NEAR 29.3N 47.9W 1001 MB AT 0300 UTC OCT
12 MOVING NE OR 035 DEG AT 19 KT. MAXIMUM SUSTAINED WINDS 45 KT
GUSTS 55 KT. TROPICAL STORM FORCE WINDS WITHIN 70 NM NE
QUADRANT…90 NM SE QUADRANT…60 NM SW QUADRANT…AND 0 NM NW
QUADRANT. SEAS 12 FT OR GREATER WITHIN 120 NM OF CENTER WITH
SEAS TO 20 FT. ELSEWHERE WITHIN 29N46W TO 30N48W TO 27N50W TO
25N48W TO 26N46W TO 29N46W WINDS 20 TO 33 KT. SEAS 10 TO 12 FT.
REMAINDER OF AREA WITHIN 31N43W TO 30N48W TO 31N59W TO 26N59W TO
24N49W TO 27N44W TO 31N43W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT
IN MIXED SWELL.
.24 HOUR FORECAST TROPICAL STORM LESLIE NEAR 34.8N 39.5W.
MAXIMUM SUSTAINED WINDS 45 KT GUSTS 55 KT. TROPICAL STORM FORCE
WINDS WITHIN 80 NM S SEMICIRCLE…50 NM NE QUADRANT AND 0 NM NW
QUADRANT. SEAS 12 FT OR GREATER WITHIN 150 NM SE QUADRANT AND 240
NM SW QUADRANT WITH SEAS TO 18 FT. OVER FORECAST WATERS WITHIN
31N38W TO 31N47W TO 28N45W TO 28N41W TO 30N39W TO 31N38W WINDS 20
KT OR LESS. SEAS 8 TO 12 FT IN SW TO W SWELL.
.36 HOUR FORECAST POST-TROPICAL EXTRATROPICAL LESLIE NEAR 36.7N
33.6W. MAXIMUM SUSTAINED WINDS 40 KT GUSTS 50 KT.
.48 HOUR FORECAST POST-TROPICAL EXTRATROPICAL LESLIE NEAR 37.1N
28.3W. MAXIMUM SUSTAINED WINDS 35 KT GUSTS 45 KT. TROPICAL STORM
FORCE WINDS WITHIN 80 NM S SEMICIRCLE…30 NM NE QUADRANT AND 20
NM NW QUADRANT. SEAS 12 FT OR GREATER WITHIN 60 NM NE
QUADRANT…120 NM SE QUADRANT…180 NM SW QUADRANT…AND 150 NW
QUADRANT WITH SEAS TO 19 FT. OVER FORECAST WATERS WITHIN 31N35W
TO 31N38W TO 30N38W TO 30N36W TO 30N35W TO 31N35W WINDS 20 KT OR
LESS. SEAS 8 FT IN W SWELL.
FORECAST WINDS IN AND NEAR ACTIVE TROPICAL CYCLONES SHOULD BE
USED WITH CAUTION DUE TO UNCERTAINTY IN FORECAST TRACK…SIZE
AND INTENSITY.
…ATLC GALE WARNING…
.LOW PRES NEAR 27N64.5W 1000 MB. WITHIN 31N60W TO 31N64W TO
29N67W TO 28N67W TO 28N66W TO 30N63W TO 31N60W N TO NE WINDS 25
TO 35 KT. SEAS 12 TO 21 FT. ELSEWHERE WITHIN 30N60W TO 29N67W TO
31N71W TO 28N73W TO 24N65W TO 27N60W TO 30N60W NW TO N WINDS 20
TO 30 KT. SEAS 12 TO 16 FT IN NW TO N SWELL. REMAINDER OF AREA
WITHIN 26N59W TO 26N72W TO 31N81W TO 26N80W TO 22N70W TO 23N63W
TO 26N59W…INCLUDING ATLANTIC EXPOSURES…WINDS 20 KT OR LESS.
SEAS 8 TO 12 FT IN NE SWELL.
.12 HOUR FORECAST LOW PRES NEAR 30N58W 1004 MB. WITHIN 31N55W TO
31N64W TO 27N65W TO 25N59W TO 28N56W TO 31N55W NW WINDS 20 TO 30
KT. SEAS 12 TO 16 FT. ELSEWHERE WITHIN 27N66W TO 31N64W TO
31N78W TO 28N80W TO 21N70W TO 24N59W TO 27N66W…INCLUDING
ATLANTIC EXPOSURES…WINDS 20 KT OR LESS. SEAS 8 TO 12 FT IN N TO
NE SWELL.
.24 HOUR FORECAST LOW PRES NEAR 30N56W 1006 MB. WITHIN 31N55W TO
31N60W TO 29N60W TO 27N57W TO 28N55W TO 31N55W NW WINDS 20 TO 25
KT. SEAS 10 TO 12 FT. ELSEWHERE WITHIN 31N51W TO 28N60W TO
31N64W TO 26N77W TO 21N71W TO 23N57W TO 31N51W…INCLUDING
ATLANTIC EXPOSURES…WINDS 20 KT OR LESS. SEAS 8 TO 11 FT IN N
SWELL.
.48 HOUR FORECAST LOW PRES N OF AREA. WITHIN 31N49W TO 31N55W TO
29N56W TO 27N55W TO 28N51W TO 29N49W TO 31N49W WINDS 20 KT OR
LESS. SEAS 8 FT IN W SWELL.
.SYNOPSIS AND FORECAST.
.ATLC 36 HOUR FORECAST LOW PRES…POSSIBLE TROPICAL
CYCLONE…E OF AREA NEAR 17N33W 1012 MB. OVER FORECAST WATERS
WITHIN 21N35W TO 20N36W TO 19N37W TO 18N36W TO 17N35W TO 21N35W
WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN E SWELL.
.48 HOUR FORECAST LOW PRES…POSSIBLE TROPICAL
CYCLONE…E OF AREA NEAR 16N34W 1010 MB. OVER FORECAST WATERS
WITHIN 21N35W TO 20N38W TO 18N38W TO 17N37W TO 18N35W TO 21N35W
WINDS
20 KT OR LESS. SEAS 8 TO 9 FT IN E SWELL.
.CARIBBEAN 36 HOUR FORECAST WITHIN 14N71W TO 15N73W TO 13N76W TO
12N76W TO 11N74W TO 13N71W TO 14N71W E WINDS 20 TO 25 KT. SEAS
LESS THAN 8 FT.
.48 HOUR FORECAST WITHIN 14N70W TO 14N71W TO 13N73W TO 12N71W TO
11N71W TO 12N69W TO 14N70W…INCLUDING THE GULF OF VENEZUELA…
E WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT.
.REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.
.FORECASTER ERA. NATIONAL HURRICANE CENTER.
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UUID 034810FC-884C-11EF-A1DC-0AFB0A260000 TX 1
