FZNT01 KWBC 251546
HSFAT1 1630
HIGH SEAS FORECAST FOR METAREA IV
NWS OCEAN PREDICTION CENTER WASHINGTON DC
1630 UTC WED SEP 25 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1200 UTC SEP 25.
24 HOUR FORECAST VALID 1200 UTC SEP 26.
48 HOUR FORECAST VALID 1200 UTC SEP 27.
.WARNINGS.
…STORM WARNING…
.LOW 37N57W 998 MB MOVING SE 10 KT. WITHIN 240 NM N QUADRANT
WINDS 35 TO 50 KT. SEAS 15 TO 22 FT. ELSEWHERE FROM 34N TO 40N
BETWEEN 55W AND 63W…AND FROM 40N TO 46N BETWEEN 42W AND 65W
WINDS 25 TO 35 KT. SEAS 9 TO 17 FT.
.24 HOUR FORECAST LOW 36N53W 1004 MB. WITHIN 360 N AND NW
QUADRANT WINDS 25 TO 35 KT. SEAS 8 TO 15 FT. ELSEWHERE FROM 33N
TO 46N BETWEEN 49W AND 61W…AND FROM 41N TO 46N BETWEEN 41W AND
50W WINDS 20 TO 30 KT. SEAS TO 12 FT.
.48 HOUR FORECAST LOW 37N48W 1001 MB. S OF 47N BETWEEN 40W AND
55W WINDS 20 TO 30 KT. SEAS 8 TO 13 FT IN A MIXED SWELL.
…GALE WARNING…
.LOW 61N42W 1020 MB MOVING SE 10 KT. WITHIN 180 NM S QUADRANT
WINDS TO 25 KT. SEAS LESS THAN 8 FT.
.12 HOUR FORECAST LOW 61N41W 1014 MB. WITHIN 180 NM SW OF A LINE
FROM 59N40W TO 60N45W TO 63N51W WINDS 25 TO 35 KT. SEAS 8 TO 13
FT.
.24 HOUR FORECAST LOW 60N39W 1011 MB. WITHIN 300 NM SE QUADRANT
AND WITHIN 180 NM SW OF A LINE FROM 59N40W TO 60N45W TO 63N51W
WINDS 20 TO 30 KT. SEAS TO 12 FT.
.48 HOUR FORECAST LOW E OF AREA 58N31W 1011 MB. FROM 55N TO 64N E
OF 41W WINDS TO 25 KT. SEAS TO 8 FT.
…GALE WARNING…
.36 HOUR FORECAST NEW LOW 42N43W 1009 MB. FROM 41N TO 45N E OF
45W WINDS 25 TO 35 KT. SEAS 8 TO 13 FT.
.48 HOUR FORECAST LOW 44N36W 1008 MB. FROM 41N TO 47N E OF 40W
WINDS 25 TO 35 KT. SEAS 8 TO 13 FT.
.SYNOPSIS AND FORECAST.
.FROM 41N TO 53N E OF 44W AREA OF N WINDS 20 TO 30 KT. SEAS 8 TO
14 FT.
.24 HOUR FORECAST CONDITIONS E OF AREA.
.24 HOUR FORECAST EXCEPT WHERE NOTED IN HURRICANE WARNING
BELOW…S OF 34N W OF 76W WINDS 20 TO 33 KT. SEAS TO 12 FT.
.48 HOUR FORECAST EXCEPT WHERE NOTED IN HURRICANE WARNING
BELOW…S OF 36N W OF 74W WINDS 20 TO 33 KT. SEAS TO 12 FT.
.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 61N TO 65N W OF
60W.
.24 HOUR FORECAST DENSE FOG N OF 61N W OF GREENLAND COAST.
.48 HOUR FORECAST CONDITIONS IMPROVED.
.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 1200 UTC WED SEP 25.
24 HOUR FORECAST VALID 1200 UTC THU SEP 26.
48 HOUR FORECAST VALID 1200 UTC FRI SEP 27.
.WARNINGS.
…CARIBBEAN AND GULF OF MEXICO HURRICANE WARNING…
.HURRICANE HELENE NEAR 21.6N 86.3W 979 MB AT 1500 UTC SEP 25
MOVING NNW OR 330 DEG AT 9 KT. MAXIMUM SUSTAINED WINDS 70 KT
GUSTS 85 KT. TROPICAL STORM FORCE WINDS WITHIN 210 NM NE
QUADRANT…240 NM SE QUADRANT…60 NM SW QUADRANT…AND 90 NM NW
QUADRANT. SEAS 12 FT OR GREATER WITHIN 180 NM E SEMICIRCLE AND
90 NM W SEMICIRCLE WITH SEAS TO 26 FT. ELSEWHERE N OF 17N
BETWEEN 80W AND 87W…AND S OF 25N BETWEEN 80W AND 89W…
INCLUDING THE YUCATAN CHANNEL AND IN THE STRAITS OF FLORIDA
WINDS 20 TO 33 KT. SEAS 8 TO 12 FT.
.24 HOUR FORECAST HURRICANE HELENE NEAR 25.7N 85.7W. MAXIMUM
SUSTAINED WINDS 100 KT GUSTS 120 KT. TROPICAL STORM FORCE WINDS
WITHIN 240 NM NE QUADRANT…250 NM SE QUADRANT…120 NM SW
QUADRANT…AND 140 NM NW QUADRANT. SEAS 12 FT OR GREATER FROM
21.5N TO 29N BETWEEN 81W AND 90W WITH SEAS TO 32 FT. ELSEWHERE
FROM 20N TO 22N BETWEEN 80W AND 86.5W…INCLUDING THE YUCATAN
CHANNEL…AND FROM 22N TO 30N BETWEEN 80W AND 81W…INCLUDING
THE STRAITS OF FLORIDA WINDS 20 TO 33 KT. SEAS 8 TO 12 FT.
.48 HOUR FORECAST TROPICAL STORM HELENE INLAND N OF AREA NEAR
34.3N 85.0W. MAXIMUM SUSTAINED WINDS 50 KT GUSTS 60 KT. TROPICAL
STORM FORCE WINDS WITHIN 40 NM W SEMICIRCLE…70 NM NE QUADRANT
AND 330 NM SE QUADRANT. OVER FORECAST WATERS SEAS 12 FT OR
GREATER N OF 30N W OF 77W WITH SEAS TO 14 FT. N OF 24N AND E OF
A LINE FROM 24N83W TO 30N 87W SW WINDS 20 TO 30 KT. SEAS 8 TO 12
FT. ELSEWHERE N OF 22N BETWEEN 82W AND 95W WINDS 20 KT OR LESS.
SEAS 8 TO 11 FT IN NE TO E 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 18 HOUR FORECAST LOW PRES…POSSIBLE TROPICAL CYCLONE…
NEAR 15N36W 1008 MB. FROM 15N TO 19N E OF 37W NE TO E WINDS 20
TO 25 KT. SEAS 8 TO 10 FT.
.24 HOUR FORECAST LOW PRES…POSSIBLE TROPICAL CYCLONE…NEAR
15N37W 1007 MB. FROM 15N TO 20N W OF 39N NE TO E WINDS 20 TO 30
KT. SEAS 8 TO 11 FT.
.48 HOUR FORECAST LOW PRES…POSSIBLE TROPICAL CYCLONE…NEAR
17N42W 1004 MB. FROM 17N TO 21N BETWEEN 39W AND 44W NE TO E
WINDS 20 TO 30 KT. SEAS 8 TO 12 FT. FROM 15N TO 17N BETWEEN 40W
AND 44W WINDS 20 KT OR LESS. SEAS 8 TO 11 FT IN MIXED SWELL.
.ATLC 12 HOUR FORECAST N OF 27N W OF 78W SE WINDS 20 TO 25 KT.
SEAS LESS THAN 8 FT. FROM 23N TO 27N W OF 79W S WINDS 20 TO 30
KT. SEAS LESS THAN 8 FT.
.24 HOUR FORECAST FROM 23N TO 30N W OF 78W SE TO S WINDS 20 TO
30 KT. SEAS BUILDING TO 8 FT N OF 27N.
.48 HOUR FORECAST ELSEWHERE NW OF A LINE FROM 31N75W TO 25N80W S
TO SW WINDS 20 TO 30 KT. SEAS 8 TO 12 FT N OF 27N.
.REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.
.FORECASTER GR. NATIONAL HURRICANE CENTER.
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UUID 62542DE6-7B55-11EF-B8B0-0AFB0B270000 TX 1
