FZNT01 KWBC 260950
HSFAT1 1030
HIGH SEAS FORECAST FOR METAREA IV
NWS OCEAN PREDICTION CENTER WASHINGTON DC
1030 UTC THU SEP 26 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0600 UTC SEP 26.
24 HOUR FORECAST VALID 0600 UTC SEP 27.
48 HOUR FORECAST VALID 0600 UTC SEP 28.
.WARNINGS.
…HURRICANE WARNING…
.TROPICAL STORM ISAAC NEAR 37.1N 52.8W 997 MB AT 0900 UTC SEP 26
MOVING E OR 090 DEG AT 10 KT. MAXIMUM SUSTAINED WINDS 45 KT
GUSTS 55 KT. TROPICAL STORM FORCE WINDS WITHIN 60 NM OF CENTER.
SEAS 12 FT OR GREATER WITHIN 120 NM S SEMICIRCLE AND 120 NM NW
QUADRANT WITH SEAS TO 15 FT.
.24 HOUR FORECAST TROPICAL STORM ISAAC 37.6N 48.1W. MAXIMUM
SUSTAINED WINDS 55 KT GUSTS 65 KT. TROPICAL STORM FORCE WINDS
WITHIN 60 NM NE QUADRANT…70 NM SE QUADRANT…60 NM SW QUADRANT
AND 50 NM NW QUADRANT. SEAS 12 FT OR GREATER WITHIN 120 NM OF
CENTER WITH SEAS TO 18 FT. ELSEWHERE WITHIN 360 NM SE…180 NM
SW…360 NM NW AND 420 NM NE QUADRANTS WINDS 20 TO 33 KT. SEAS 9
TO 13 FT.
.48 HOUR FORECAST HURRICANE ISAAC 39.4N 41.2W. MAXIMUM SUSTAINED
WINDS 65 KT GUSTS 80 KT. TROPICAL STORM FORCE WINDS WITHIN 90 NM
NE QUADRANT…120 NM SE QUADRANT…90 NM SW QUADRANT AND 80 NM
NW QUADRANT. SEAS 12 FT OR GREATER WITHIN 240 NM S AND 180 NM N
SEMICIRCLES WITH SEAS TO 24 FT. ELSEWHERE WITHIN 360 NM SE…240
NM SW…300 NM NW AND 300 NM NE QUADRANTS WINDS 20 TO 33 KT.
SEAS TO 12 FT.
…HURRICANE WARNING…
.24 HOUR FORECAST HURRICANE HELENE INLAND NEAR 31.6N 84.0W.
MAXIMUM SUSTAINED WINDS 75 KT GUSTS 95 KT. TROPICAL STORM FORCE
WINDS WITHIN 270 NM E SEMICIRCLE…120 NM SW QUADRANT AND 120 NM
NW QUADRANT. ELSEWHERE S OF 34N W OF 76W WINDS 20 TO 33 KT. SEAS
TO 16 FT.
.48 HOUR FORECAST POST-TROPICAL CYCLONE HELENE NEAR 37.0N 87.8W.
MAXIMUM SUSTAINED WINDS 25 KT GUSTS 35 KT. ELSEWHERE S OF 38N W
OF 73W WINDS TO 25 KT. SEAS TO 10 FT.
…GALE WARNING…
.WITHIN 180 NM NW OF A LINE FROM 40N49W TO 38N57W WINDS 25 TO 35
KT. SEAS 9 TO 15 FT. ELSEWHERE WITHIN AN AREA BOUNDED BY
41N42W…40N51W…36N60W…41N60W…44N50W…43N41W…41N42W
WINDS 20 TO 30 KT. SEAS TO 12 FT.
.24 HOUR FORECAST CONDITIONS DESCRIBED ABOVE WITH TROPICAL STORM
ISAAC.
…GALE WARNING…
.LOW 61N41W 1010 MB MOVING E 10 KT. WITHIN 120 NM SW OF A LINE
FROM 62N49W TO 60N47W TO 59N46W WINDS 25 TO 35 KT. SEAS TO 10
FT. ELSEWHERE WITHIN 300 NM W AND SW QUADRANTS WINDS TO 25 KT.
SEAS TO 8 FT.
.24 HOUR FORECAST LOW 60N34W 1010 MB. FROM 54N TO 58N E OF 40W
WINDS TO 25 KT. SEAS TO 8 FT.
.48 HOUR FORECAST LOW AND CONDITIONS E OF AREA.
.SYNOPSIS AND FORECAST.
.48 HOUR FORECAST LOW 45N61W 1005 MB. WITHIN 240 NM NE
SEMICIRCLE WINDS 20 TO 30 KT. SEAS TO 10 FT.
.FORECASTER SHAW. OCEAN PREDICTION CENTER.
NATIONAL HURRICANE CENTER MIAMI FL
ATLANTIC FROM 07N TO 31N W OF 35W INCLUDING CARIBBEAN SEA AND
GULF OF MEXICO
SYNOPSIS VALID 0600 UTC THU SEP 26.
24 HOUR FORECAST VALID 0600 UTC FRI SEP 27.
48 HOUR FORECAST VALID 0600 UTC SAT SEP 28.
.WARNINGS.
…CARIBBEAN AND GULF OF MEXICO HURRICANE WARNING…
.HURRICANE HELENE NEAR 24.2N 86.2W 966 MB AT 0900 UTC SEP 26
MOVING NNE OR 015 DEG AT 10 KT. MAXIMUM SUSTAINED WINDS 80 KT
GUSTS 100 KT. TROPICAL STORM FORCE WINDS WITHIN 250 NM NE
QUADRANT…300 NM SE QUADRANT…100 NM SW QUADRANT…AND 120 NM
NW QUADRANT. SEAS 12 FT OR GREATER WITHIN 240 NM NE
QUADRANT…270 NM SE QUADRANT…150 NM SW QUADRANT…AND 180 NM
NW QUADRANT WITH SEAS TO 33 FT. ELSEWHERE…WITHIN 29N79W TO
29N86W TO 27N91W TO 23N92W TO 19N85W TO 20N80W TO
29N79W…INCLUDING STRAITS OF FLORIDA…WINDS 20 TO 33 KT. SEAS 8
TO 12 FT.
.24 HOUR FORECAST HURRICANE HELENE INLAND NEAR 31.6N 84.0W.
MAXIMUM SUSTAINED WINDS 75 KT GUSTS 95 KT. TROPICAL STORM FORCE
WINDS WITHIN 270 NM E SEMICIRCLE…140 NM SW QUADRANT AND 70 NM
NW QUADRANT. SEAS 12 FT OR GREATER WITHIN 240 NE QUADRANT…270
NM SE QUADRANT…AND 150 NM SW QUADRANT WITH SEAS TO 23 FT.
ELSEWHERE OVER FORECAST WATERS…WITHIN 29N76W TO 31N78W TO
30N90W TO 26N87W TO 24N83W TO 24N79W TO 29N76W…INCLUDING
STRAITS OF FLORIDA AND ATLANTIC EXPOSURES…WINDS 20 TO 33 KT.
SEAS 10 TO 12 FT. REMAINDER OF AREA…WITHIN 31N74W TO 28N85W TO
31N88W TO 27N96W TO 22N92W TO 23N79W TO 31N74W…INCLUDING IN
YUCATAN CHANNEL…WINDS 20 KT OR LESS. SEAS 8 TO 11 FT IN MIXED
SWELL.
.36 HOUR FORECAST POST-TROPICAL EXTRATROPICAL HELENE NEAR 36.1N
84.9W. MAXIMUM SUSTAINED WINDS 30 KT GUSTS 50 KT. SEAS 12 FT OR
GREATER WITHIN 270 NM SE QUADRANT WITH SEAS TO 13 FT. ELSEWHERE
OVER FORECAST WATERS…WITHIN 31N74W TO 31N81W TO 29N81W TO
26N79W TO 29N75W TO 31N74W WINDS 20 TO 30 KT. SEAS 9 TO 12 FT.
REMAINDER OF AREA…WITHIN 29N84W TO 30N87W TO 28N94W TO 24N95W
TO 24N88W TO 26N82W TO 29N84W WINDS 20 KT OR LESS. SEAS 8 TO 10
FT IN MIXED SWELL.
.48 HOUR FORECAST POST-TROPICAL EXTRATROPICAL HELENE NEAR 37.0N
87.8W. MAXIMUM SUSTAINED WINDS 25 KT GUSTS 35 KT. OVER FORECAST
WATERS…WITHIN 31N75W TO 31N80W TO 29N80W TO 28N79W TO 31N75W
WINDS 20 TO 25 KT. SEAS 8 TO 10 FT.
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 LOW PRES NEAR 15N36W 1009 MB. WITHIN 19N35W TO 18N37W TO
16N38W TO 15N37W TO 15N35W TO 19N35W E WINDS 20 TO 30 KT. SEAS 8
TO 11 FT. ELSEWHERE…WITHIN 20N35W TO 20N37W TO 16N38W TO
15N36W TO 15N35W TO 20N35W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT
IN NE TO E SWELL.
.24 HOUR FORECAST LOW PRES…POSSIBLE TROPICAL CYCLONE…NEAR
17N42W 1004 MB. WITHIN 118N35W TO 21N35W WINDS 20 KT OR LESS. SEAS 8 TO 11 FT
IN MIXED SWELL.
.ATLC 06 HOUR FORECAST WITHIN 31N60W TO 31N65W TO 30N64W TO
30N63W TO 30N61W TO 31N60W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT
IN N TO NE SWELL.
.24 HOUR FORECAST LITTLE CHANGE.
.48 HOUR FORECAST CONDITIONS IMPROVE.
.REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.
¤¤
.FORECASTER KONARIK. NATIONAL HURRICANE CENTER.
UUID CFF2DBBC-7BEC-11EF-B429-0AFB0B260000 TX 1
