485
FZNT01 KWBC 091612
HSFAT1
HIGH SEAS FORECAST FOR METAREA IV
NWS OCEAN PREDICTION CENTER WASHINGTON DC
1630 UTC FRI OCT 09 2026
CCODE/2:31:04:11:00/AOE+AOW/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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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://urldefense.com/v3/__HTTPS://OCEAN.WEATHER.GOV/ATL_TAB.PHP__;!!DZ3fjg!7KvKWQqDIew4dBZ5Z8rg69jl568mPKmC2dCDggZAWtxgXUmI73UXcB8b45AK10V08lYvPHOKLe7-aiQsg7JJUBWsSwc$
(ALL LOWERCASE).
FOR ANY TROPICAL CYCLONE INFORMATION BEYOND 48 HOURS REFERENCE
THE ASSOCIATED NWS TROPICAL CYCLONE FORECAST/ADVISORY (TCM).
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 4 METERS 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 OCT 09.
24 HOUR FORECAST VALID 1200 UTC OCT 10.
48 HOUR FORECAST VALID 1200 UTC OCT 11.
.WARNINGS.
...STORM WARNING...
.24 HOUR FORECAST RAPIDLY INTENSIFYING NEW LOW 58N42W 993 MB.
WITHIN 90 NM NW OF A LINE FROM 59N47W TO 59N43W TO 62N40W WINDS
25 TO 40 KT. SEAS 3 TO 5 M. ELSEWHERE WITHNIN 150 NM NW AND N OF
THE SAME LINE...WITHIN 180 NM E OF GREENLAND N OF 63N AND WITHIN
240 NM E OF A LINE FROM 55N35W TO 45N47W WINDS 20 TO 30 KT. SEAS
TO 4 M.
.48 HOUR FORECAST LOW 59N37W 965 MB. WITHIN 90 NM W OF A LINE
FROM 58N42W TO 63N40W WINDS 35 TO 50 KT. SEAS 4.5 TO 6.5 M. ALSO
WITHIN 240 NM W AND NW QUADRANTS...WITHIN 120 NM E OF
GREENLAND...AND BETWEEN 300 NM AND 660 NM W AND SW QUADRANTS
WINDS 25 TO 40 KT. SEAS 3 TO 6 M. ELSEWHERE WITHIN 840 NM W
QUADRANT AND N OF 49N E OF 61W WINDS 20 TO 30 KT. SEAS 2.5 TO 4
M.
...GALE WARNING...
.COMPLEX LOW WITH MAIN CENTER NEAR 40N49W 1008 MB MOVING NE 40
KT. WITHIN 180 NM S AND SE QUADRANTS WINDS 25 TO 35 KT. SEAS TO
3.5 M. ELSEWHERE WITHIN 480 NM S OF A LINE FROM 47N35W TO 41N52W
WINDS 20 TO 30 KT. SEAS TO 2.5 M.
.24 HOUR FORECAST LOW E OF AREA NEAR 49N28W 1002 MB. WITHIN 360
NM S OF A LINE FROM 43N35W TO 38N45W WINDS 20 TO 30 KT. SEAS 2.5
TO 4 M...HIGHEST NEAR 43N35W.
.48 HOUR FORECAST LOW AND ASSOCIATED CONDITIONS MOVED WELL E OF
AREA.
...GALE WARNING...
.LOW 56N56W 994 MB MOVING NE 15 KT. FROM 50N TO 55N BETWEEN 47W
AND 53W WINDS 25 TO 35 KT. SEAS 2.5 TO 3.5 M. ELSEWHERE WITHIN
420 NM E AND 720 NM S QUADRANTS AND WITHIN 180 NM N AND NW
QUADRANTS WINDS TO 25 KT. SEAS TO 3 M...HIGHEST S OF 56N E OF
56W.
.24 HOUR FORECAST LOW 59N49W 986 MB. BETWEEN 59W AND A LINE FROM
66N54W TO 55N50W WINDS 25 TO 40 KT. SEAS 2.5 TO 4.5 M...HIGHEST
NEAR 59N53W. ELSEWHERE W OF A LINE FROM 67N54W TO 52N47W WINDS
20 TO 30 KT. SEAS TO 4 M...HIGHEST S OF 61N.
.48 HOUR FORECAST LOW AND ASSOCIATED CONDITIONS ABSORBED BY LOW
59N37W IN STORM WARNING ABOVE.
...GALE WARNING...
.12 HOUR FORECAST FROM 39N TO 50N BETWEEN 54W AND 68W AREA OF W
TO NW WINDS 20 TO 30 KT. SEAS TO 2.5 M.
.24 HOUR FORECAST LOW 50N56W 1004 MB. BETWEEN 180 NM AND 480 NM
S AND SW QUADRANTS WINDS 25 TO 35 KT. SEAS TO 3.5 M...HIGHEST
NEAR 42N58W. ELSEWHERE WITHIN 660 NM S AND SW QUADRANTS WINDS 20
TO 30 KT. SEAS TO 3 M.
.48 HOUR FORECAST LOW 47N38W 1000 MB. WITHIN 180 NM SE AND S
QUADRANTS AND BETWEEN 61W AND A LINE FROM 49N37W TO 31N48W WINDS
20 TO 30 KT. SEAS 2.5 TO 5 M...EXCEPT W OF 58W SEAS TO 3
M...HIGHEST NEAR 39N49W.
...GALE WARNING...
.12 HOUR FORECAST FROM 31N TO 33N W OF 74W AREA OF E WINDS 20 TO
30 KT. SEAS TO 2.5 M.
.24 HOUR FORECAST FROM 31N TO 35N W OF 73W AREA OF E TO NE WINDS
TO 25 KT. SEAS TO 2.5 M.
.48 HOUR FORECAST FROM 34N TO 37N BETWEEN 72W AND 74W AREA OF E
WINDS 25 TO 35 KT. SEAS 2.5 TO 3.5 M. ELSEWHERE FROM 31N TO 39N
W OF 70W WINDS 20 TO 30 KT. SEAS TO 3 M.
.SYNOPSIS AND FORECAST.
.LOW 65N37W 1001 MB MOVING SE 05 KT. E OF A LINE FROM 61N45W TO
56N40W AREA OF W TO SW WINDS 20 TO 30 KT. SEAS 2.5 TO 4.5
M...HIGHEST NEAR 58N35W. ELSEWHERE FROM 48N TO 56N E OF 42W
WINDS LESS THAN 25 KT. SEAS TO 4 M IN MIXED SWELL.
.24 HOUR FORECAST LOW AND CONDITIONS MOVED E OF AREA.
.FROM 59N TO 63N W OF 52W AREA OF N TO NE WINDS TO 25 KT. SEAS
TO 2.5 M.
.24 HOUR FORECAST CONDITIONS MERGED WITH LOW 59N49W DESCRIBED
ABOVE.
.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 45N TO 47N
BETWEEN 53W AND 57W...AND FROM 50N TO 54N BETWEEN 50W AND 58W.
.24 HOUR FORECAST DENSE FOG FROM 48N TO 52N BETWEEN 37W AND 49W.
.48 HOUR FORECAST CONDITIONS IMPROVED.
.FORECASTER BANCROFT. 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 FRI OCT 09.
24 HOUR FORECAST VALID 1200 UTC SAT OCT 10.
48 HOUR FORECAST VALID 1200 UTC SUN OCT 11.
.WARNINGS.
...GULF OF AMERICA HURRICANE WARNING...
.HURRICANE ISAIAS NEAR 27.7N 87.3W 959 MB AT 1500 UTC OCT 09
MOVING NNE OR 025 DEG AT 14 KT. MAXIMUM SUSTAINED WINDS 105 KT
GUSTS 130 KT. TROPICAL STORM FORCE WINDS WITHIN 180 NM NE
QUADRANT...110 NM SE QUADRANT...80 NM SW QUADRANT...AND 160 NM
NW QUADRANT. SEAS 4 M OR GREATER WITHIN 180 NM E SEMICIRCLE...120
NM SW QUADRANT AND 150 NM NW QUADRANT WITH SEAS TO 11 M.
ELSEWHERE
WITHIN 30N84W TO 30N89W TO 29N94W TO 27N94W TO 23N85W TO 25N84W
TO 30N84W WINDS 20 TO 33 KT. SEAS 3 TO 5 M. REMAINDER OF AREA
WITHIN 27N84W TO 26N91W TO 30N89W TO 28N95W TO 22N94W TO 23N84W
TO 27N84W...INCLUDING IN THE WESTERN PORTION OF THE STRAITS OF
FLORIDA...WINDS 20 KT OR LESS. SEAS 2.5 TO 3 M IN MIXED SWELL.
.24 HOUR FORECAST TROPICAL STORM ISAIAS INLAND NEAR 32.1N 87.1W.
MAXIMUM SUSTAINED WINDS 55 KT GUSTS 65 KT. TROPICAL STORM FORCE
WINDS WITHIN 70 NM NE QUADRANT...50 NM SE QUADRANT...30 NM SW
QUADRANT...AND 60 NM NW QUADRANT. OVER FORECAST WATERS...WITHIN
WITHIN 30N84W TO 31N87W TO 30N89W TO 29N87W TO 26N86W TO 29N83W
TO 30N84W S TO SW WINDS 20 TO 25 KT. SEAS 2.5 TO 3 M. WITHIN
26N89W TO 28N90W TO 27N97W TO 22N95W TO 23N90W TO 26N89W WINDS
20 KT OR LESS. SEAS 2.5 TO 3 M IN NE SWELL.
.36 HOUR FORECAST POST-TROPICAL ISAIAS WELL INLAND NEAR 34.2N
87.2W. MAXIMUM SUSTAINED WINDS 35 KT GUSTS 45 KT. OVER FORECAST
WATERS...WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.
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 COLD FRONT FROM 31N62W TO 30N66W THEN STATIONARY FRONT TO
31N76W AND TO 30N81W. WITHIN 31N78W TO 31N81W TO 30N81W TO
29N80W TO 30N78W TO 31N78W E WINDS 20 TO 25 KT. SEAS LESS THAN
2.5 M.
.18 HOUR FORECAST WARM FRONT NEAR 31N W OF 69W. WITHIN 31N78W TO
31N81W TO 30N81W TO 29N80W TO 30N78W TO 31N78W WINDS 20 KT OR
LESS. SEAS TO 2.5 M IN NE TO E SWELL.
.24 HOUR FORECAST WARM FRONT TO LIFT WELL N OF AREA. WINDS 20 KT
OR LESS. SEAS LESS THAN 2.5 M.
.ATLC WITHIN 17N35W TO 17N39W TO 15N38W TO 13N37W TO 13N35W TO
17N35W WINDS 20 KT OR LESS. SEAS 2.5 TO 3 M IN NE SWELL.
.24 HOUR FORECAST WITHIN 21N35W TO 18N42W TO 14N43W TO 12N42W TO
12N37W TO 14N35W TO 21N35W WINDS 20 KT OR LESS. SEAS 2.5 TO 3 M
IN NE SWELL.
.48 HOUR FORECAST LITTLE CHANGE.
.ATLC AND CARIBBEAN 36 HOUR FORECAST WITHIN 21N72W TO 21N73W TO
20N74W TO 20N73W TO 20N71W TO 21N72W NE TO E WINDS 20 TO 25 KT.
SEAS LESS THAN 2.5 M.
.48 HOUR FORECAST LITTLE CHANGE.
.CARIBBEAN 12 HOUR FORECAST WITHIN 13N69W TO 14N71W TO 12N73W TO
12N71W TO 11N71W TO 12N69W TO 13N69W...INCLUDING IN THE GULF OF
VENEZUELA...E WINDS 20 TO 25 KT. SEAS LESS THAN 2.5 M.
.30 HOUR FORECAST WITHIN 14N71W TO 13N75W TO 11N75W TO 12N72W TO
11N72W TO 11N70W TO 14N71W...INCLUDING IN THE GULF OF
VENEZUELA...NE TO E WINDS 20 TO 30 KT. SEAS LESS THAN 2.5 M.
.REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.
$$
.FORECASTER AGUIRRE. NATIONAL HURRICANE CENTER.
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