457
FZNT01 KWBC 272200
HSFAT1
HIGH SEAS FORECAST FOR METAREA IV
NWS OCEAN PREDICTION CENTER WASHINGTON DC
2230 UTC THU AUG 27 2026
CCODE/1:31:04:01:00/AOE/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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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!9bwCAeux2CCl_dCz2IIi3YjJOd4rqIM49gGQDoM71ksE729RvAR8hRzOUZlYIHAXylnt4YlKmsVIRsqxa8SiJfgpfBQ$
(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 1800 UTC AUG 27.
24 HOUR FORECAST VALID 1800 UTC AUG 28.
48 HOUR FORECAST VALID 1800 UTC AUG 29.
.WARNINGS.
...GALE WARNING...
.LOW 57N40W 1002 MB NEARLY STATIONARY THEN MOVING SE 20 KT AFTER
12 HOURS. FROM 57N TO 59N BETWEEN 37W AND 45W WINDS 25 TO 35 KT.
SEAS 3 TO 4.5 M. ELSEWHERE FROM 57N TO 61N E OF 47W AND WITHIN
300 NM S QUADRANT WINDS 20 TO 30 KT. SEAS 2.5 TO 4 M...HIGHEST N
AND NE OF LOW.
.24 HOUR FORECAST LOW 55N35W 1007 MB. WITHIN 360 NM SW
SEMICIRCLE WINDS 20 TO 30 KT. SEAS 2.5 TO 4 M...HIGHEST SW OF
LOW.
.48 HOUR FORECAST LOW E OF AREA. FROM 46N TO 53N E OF 38W AREA
OF NW WINDS LESS THAN 25 KT. SEAS TO 2.5 M.
.SYNOPSIS AND FORECAST.
.LOW 59N55W 1010 MB MOVING SE 10 KT. WITHIN 300 NM NE AND 360 NM
NW QUADRANTS WINDS TO 25 KT. SEAS 2.5 TO 3.5 M...HIGHEST NEAR
63N60W.
.24 HOUR FORECAST LOW DISSIPATED WITH CONDITIONS DIMINISHED.
.LOW JUST E OF AREA 53N31W 1004 MB MOVING SE 25 KT. FROM 49N TO
52N E OF 57W AND E OF A LINE FROM 49N37W TO 41N47W WINDS TO 25
KT. SEAS TO 2.5 M.
.24 HOUR FORECAST LOW AND CONDITIONS E OF AREA.
.24 HOUR FORECAST NEW LOW 42N68W 1013 MB. WITHIN 240 NM SE OF A
LINE FROM 42N65W TO 38N71W AREA OF S TO SW WINDS TO 25 KT. SEAS
TO 2.5 M.
.48 HOUR FORECAST LOW 47N58W 1012 MB. WITHIN 300 NM SE AND 480
NM S QUADRANTS WINDS TO 25 KT. SEAS TO 2.5 M.
.24 HOUR FORECAST FROM 59N TO 62N W OF 62W AREA OF E TO SE WINDS
20 TO 30 KT. SEAS TO 3 M...HIGHEST NEAR 62N69W.
.48 HOUR FORECAST FROM 60N TO 63N W OF 59W AREA OF E WINDS 20 TO
30 KT. SEAS TO 3 M...HIGHEST NEAR 62N69W.
.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 42N TO 45N
BETWEEN 65W AND 69W...WITHIN AN AREA BOUNDED BY A LINE FROM
42N48W TO 47N45W TO 54N53W TO 46N58W TO 43N51W TO 42N48W...AND
FROM 60N TO 63N BETWEEN 62W AND 66W.
.24 HOUR FORECAST DENSE FOG FROM 41N TO 45N BETWEEN 64W AND
70W...WITHIN AN AREA BOUNDED BY A LINE FROM 43N50W TO 49N44W TO
55N55W TO 50N61W TO 45N56W TO 43N50W...AND W OF A LINE FROM
56N58W TO 61N61W TO 65N62W.
.48 HOUR FORECAST DENSE FOG FROM 44N TO 46N BETWEEN 53W AND
58W...FROM 44N TO 52N BETWEEN 47W AND 53W...W OF A LINE FROM
52N50W TO 55N51W TO 61N61W...AND N OF 65N BETWEEN 57W AND 61W.
.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 1800 UTC THU AUG 27.
24 HOUR FORECAST VALID 1800 UTC FRI AUG 28.
48 HOUR FORECAST VALID 1800 UTC SAT AUG 29.
.WARNINGS.
...ATLANTIC TROPICAL STORM WARNING...
.TROPICAL STORM DOLLY NEAR 13.7N 40.7W 1007 MB AT 2100 UTC AUG
27 MOVING W OR 275 DEG AT 21 KT. MAXIMUM SUSTAINED WINDS 35 KT
GUSTS 45 KT. TROPICAL STORM FORCE WINDS WITHIN 0 NM OF CENTER
EXCEPT 50 NM NE QUADRANT. SEAS 4 M OR GREATER WITHIN 0 NM OF
CENTER EXCEPT 90 NM NE QUADRANT WITH SEAS TO 4.0 M. ELSEWHERE
WITHIN 18N37W TO 20N40W TO 18N42W TO 15N43W TO 13N39W TO 15N37W
TO 18N37W WINDS 20 TO 33 KT. SEAS 2.5 TO 4.0 M. REMAINDER AREA
WITHIN 17N35W TO 19N39W TO 17N38W TO 14N40W TO 13N37W TO 15N35W
TO 17N35W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN MIXED SWELL.
.24 HOUR FORECAST TROPICAL STORM DOLLY NEAR 14.7N 48.5W. MAXIMUM
SUSTAINED WINDS 40 KT GUSTS 50 KT. TROPICAL STORM FORCE WINDS
WITHIN 70 NM NE QUADRANT...30 NM SE QUADRANT...0 NM SW
QUADRANT...AND 40 NM NW QUADRANT. SEAS 4 M OR GREATER WITHIN 120
MN NE QUADRANT...30 NM SE QUADRANT...0 NM SW QUADRANT...AND 30
NM NW QUADRANT WITH SEAS TO 4.5 M. ELSEWHERE WITHIN 19N46W TO
19N50W TO 17N51W TO 15N50W TO 15N48W TO 16N46W TO 19N46W WINDS 20
TO 33 KT. SEAS 2.5 TO 4.0 M. REMAINDER AREA WITHIN 19N43W TO
19N48W TO 17N46W TO 15N48W TO 13N45W TO 16N41W TO 19N43W WINDS 20
KT OR LESS. SEAS 2.5 TO 3.0 M.
.48 HOUR FORECAST POST-TROPICAL DOLLY NEAR 16.5N 57.3W. MAXIMUM
SUSTAINED WINDS 35 KT GUSTS 45 KT. TROPICAL STORM FORCE WINDS
WITHIN 0 NM S SEMICIRCLE...60 NM NE QUADRANT AND 40 NM NW
QUADRANT. SEAS 4 M OR GREATER WITHIN 90 MN NE QUADRANT...30 NM NW QUADRANT...AND 0 NM S SEMICIRCLE WITH SEAS TO 4.5 M. ELSEWHERE
WITHIN 19N54W TO 20N56W TO 20N59W TO 17N59W TO 16N57W TO 17N54W
TO 19N54W WINDS 20 TO 33 KT. SEAS 2.5 TO 4.0 M. REMAINDER AREA
WITHIN 21N52W TO 20N57W TO 17N55W TO 16N57W TO 14N53W TO 16N50W
TO 21N52W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0.
FORECAST WINDS IN AND NEAR ACTIVE TROPICAL CYCLONES SHOULD BE
USED WITH CAUTION DUE TO UNCERTAINTY IN FORECAST TRACK...SIZE
AND INTENSITY.
...CARIBBEAN GALE WARNING...
.CARIBBEAN WITHIN 16N73W TO 15N80W TO 13N81W TO 10N80W TO 10N77W
TO 12N71W TO 16N73W...INCLUDING THE GULF OF VENEZUELA... NE TO E
WINDS 20 TO 30 KT. SEAS 2.5 TO 3.0.
.06 HOUR FORECAST WITHIN 12N74W TO 12N75W TO 11N75W TO 11N74W TO
12N74W NE TO E WINDS 30 TO 35 KT. SEAS 2.5 TO 3.5 M. ELSEWHERE
WITHIN 13N70W TO 14N73W TO 15N79W TO 14N81W TO 10N80W TO 10N72W
TO 13N70W...INCLUDING THE GULF OF VENEZUELA... NE TO E WINDS 20
TO 30 KT. SEAS 2.5 TO 3.0 M.
.12 HOUR FORECAST LITTLE CHANGE...EXCEPT WINDS BELOW GALE FORCE.
.24 HOUR FORECAST WITHIN 13N71W TO 14N79W TO 13N81W TO 10N79W TO
11N75W TO 11N71W TO 13N71W...INCLUDING THE GULF OF VENEZUELA...
NE WINDS 20 TO 30 KT. SEAS TO 2.5 TO 3.0 M.
.48 HOUR FORECAST WITHIN 14N71W TO 14N74W TO 13N75W TO 12N74W TO
12N72W TO 12N70W TO 14N71W...INCLUDING THE GULF OF VENEZUELA...
NE TO E WINDS 20 TO 30 KT. SEAS TO 2.5 M.
.SYNOPSIS AND FORECAST.
.REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.
$$
.FORECASTER AL. NATIONAL HURRICANE CENTER.
= = = = = = =
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