161
FZNT01 KWBC 271625
HSFAT1

HIGH SEAS FORECAST FOR METAREA IV
NWS OCEAN PREDICTION CENTER WASHINGTON DC
1630 UTC SAT SEP 27 2025

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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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://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).

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 27.
24 HOUR FORECAST VALID 1200 UTC SEP 28.
48 HOUR FORECAST VALID 1200 UTC SEP 29.

.WARNINGS.

...STORM WARNING...
.COMPLEX LOW WITH FIRST CENTER 56N48W 982 MB DRIFTING N THEN S
AND SECOND CENTER 57N60W 984 MB MOVING E 20 KT. FROM 57N TO 60N
W OF 60W...AND WITHIN 240 NM E OF A LINE FROM 41N56W TO 53N44W
TO 57N46W...AND WITHIN THE GULF OF SAINT LAWRENCE WINDS 25 TO 35
KT. SEAS 2.5 TO 5 M...HIGHEST NEAR 50N42W. ELSEWHERE BETWEEN A
LINE FROM 46N35W TO 39N56W TO 49N66W AND A LINE FROM 61N35W TO
59N44W TO 61N53W TO 67N57W W OF 35W WINDS TO 25 KT. SEAS 3 M.
.12 HOUR FORECAST COMPLEX LOW WITH MAIN CENTER 58N50W 979 MB.
FROM 58N TO 60N BETWEEN 42W AND 48W WINDS 40 TO 50 KT. SEAS 3.5
TO 4 M.
.24 HOUR FORECAST COMPLEX LOW WITH MAIN CENTER 56N46W 985 MB AND
NEW SECOND CENTER 60N41W 988 MB. WITHIN 60 NM NW AND W OF A LINE
FROM 59N44W TO 59N43W TO 62N40W TO 63N40W WINDS 40 TO 50 KT.
SEAS 4 TO 5.5 M. ELSEWHERE WITHIN 90 NM NW AND W OF A LINE FROM
58N49W TO 58N44W TO 59N42W TO 62N39W TO 64N39W TO 65N35W...AND
WITHIN 300 NM SW AND W OF A LINE FROM 52N38W TO 56N50W TO
67N53W...AND WITHIN 120 NM E OF A LINE FROM 48N35W TO 42N43W
WINDS 30 TO 40 KT. SEAS 2.5 TO 5.5 M...HIGHEST NEAR 56N51W.
ELSEWHERE N OF 40N E OF 62W WINDS 20 TO 30 KT. SEAS TO 2.5 M.
.48 HOUR FORECAST COMPLEX LOW WITH MAIN CENTER 62N39W 977 MB.
WITHIN 90 NM SW QUADRANT...AND 180 NM NW OF A LINE FROM 62N39W
TO 63N35W WINDS 35 TO 50 KT. SEAS 4 TO 5.5 M. ELSEWHERE FROM 56N
TO 60N E OF 42W...AND N OF 62N E OF 43W...AND WITHIN 120 NM SW
QUADRANT WINDS 25 TO 35 KT. SEAS 3 TO 4.5 M. ELSEWHERE N OF 47N
E OF 48W WINDS TO 25 KT. SEAS TO 4 M.

...GALE WARNING...
.48 HOUR FORECAST N OF 59N BETWEEN 52W AND 61W WINDS 25 TO 40
KT. SEAS 3 TO 4.5 M. ELSEWHERE N OF 57N BETWEEN 49W AND 62W
WINDS TO 25 KT. SEAS 2.5 TO 3.5 M.

.SYNOPSIS AND FORECAST.

.48 HOUR FORECAST LOW 51N51W 994 MB. FROM 39N TO 53N BETWEEN 43W
AND 67W WINDS 20 TO 30 KT. SEAS TO 3 M.

.48 HOUR FORECAST S OF 33N BETWEEN 61W AND 72W WINDS LESS THAN
25 KT. SEAS TO 4 M. EXCEPT WHERE NOTED BELOW IN PART II WITH
HURRICANE HUMBERTO.

.48 HOUR FORECAST S OF 33N W OF 76W WINDS TO 25 KT. SEAS TO 2.5
M. EXCEPT WHERE NOTED BELOW IN PART II WITH TROPICAL DEPRESSION
NINE.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 53N TO 57N
BETWEEN 44W AND 51W...AND WITHIN 120 NM NW OF A LINE FROM 44N51W
TO 49N45W...AND FROM 61N TO 65N W OF 61W.
.24 HOUR FORECAST DENSE FOG FROM 61N TO 65N BETWEEN 39W AND 44W.
.48 HOUR FORECAST DENSE FOG FROM 59N TO 65N BETWEEN 39W AND 43W.

.FORECASTER POCHE. 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 SAT SEP 27.
24 HOUR FORECAST VALID 1200 UTC SUN SEP 28.
48 HOUR FORECAST VALID 1200 UTC MON SEP 29.

.WARNINGS.

...ATLC HURRICANE WARNING...
.HURRICANE HUMBERTO NEAR 22.7N 60.2W 938 MB AT 1500 UTC SEP 27
MOVING WNW OR 295 DEG AT 7 KT. MAXIMUM SUSTAINED WINDS 125 KT
GUSTS 150 KT. TROPICAL STORM FORCE WINDS WITHIN 90 NM NE
QUADRANT...60 NM SE QUADRANT...50 NM SW QUADRANT...AND 80 NM NW
QUADRANT. SEAS 4 M OR GREATER WITHIN 120 NM NW AND SE
QUADRANTS...150 NM NE QUADRANT AND 105 NM SW QUADRANT WITH SEAS
TO 10.5 M. ELSEWHERE...WITHIN 25N57W TO 26N59W TO 25N63W TO
20N61W TO 20N58W TO 22N56W TO 25N57W WINDS 20 TO 33 KT. SEAS 3.5
TO 4.0 M. REMAINDER OF AREA...WITHIN 26N57W TO 27N61W TO 25N64W
TO 22N64W TO 19N62W TO 21N56W TO 26N57W WINDS 20 KT OR LESS. SEAS
2.5 TO 3.5 M IN MIXED SWELL.
.24 HOUR FORECAST HURRICANE HUMBERTO NEAR 24.1N 63.4W. MAXIMUM
SUSTAINED WINDS 135 KT GUSTS 165 KT. TROPICAL STORM FORCE WINDS
WITHIN 90 NM NW AND SE QUADRANTS...120 NM NE QUADRANT AND 70 NM
SW QUADRANT. SEAS 4 M OR GREATER WITHIN 180 NM ALL QUADRANTS WITH
SEAS TO 12.0 M. ELSEWHERE...WITHIN 25N59W TO 29N63W TO 29N66W TO
26N67W TO 22N65W TO 21N61W TO 25N59W WINDS 20 TO 33 KT. SEAS 3.5
TO 4.0 M. REMAINDER OF AREA...WITHIN 25N57W TO 29N61W TO 29N67W
TO 22N69W TO 20N65W TO 22N58W TO 25N57W WINDS 20 KT OR LESS. SEAS
2.5 TO 4.0 M IN MIXED SWELL.
.48 HOUR FORECAST HURRICANE HUMBERTO NEAR 27.1N 66.8W. MAXIMUM
SUSTAINED WINDS 125 KT GUSTS 150 KT. TROPICAL STORM FORCE WINDS
WITHIN 130 NM E SEMICIRCLE...90 NM SW QUADRANT AND 110 NM NW
QUADRANT. SEAS 4 M OR GREATER WITHIN 240 NM ALL QUADRANTS WITH
SEAS TO 13.5 M. ELSEWHERE...WITHIN 28N62W TO 31N66W TO 31N68W TO
30N69W TO 25N68W TO 23N65W TO 28N62W WINDS 20 TO 33 KT. SEAS 3.5
TO 4.0 M. REMAINDER OF AREA...WITHIN 31N62W TO 31N73W TO 25N74W
TO 22N70W TO 22N64W TO 25N60W TO 31N62W WINDS 20 KT OR LESS. SEAS
2.5 TO 4.0 M IN MIXED SWELL.

FORECAST WINDS IN AND NEAR ACTIVE TROPICAL CYCLONES SHOULD BE
USED WITH CAUTION DUE TO UNCERTAINTY IN FORECAST TRACK...SIZE
AND INTENSITY.

...ATLC TROPICAL STORM WARNING...
.TROPICAL DEPRESSION NINE NEAR 22.0N 76.2W 1005 MB AT 1500 UTC
SEP 27 MOVING NW OR 320 DEG AT 5 KT. MAXIMUM SUSTAINED WINDS 30
KT GUSTS 40 KT. WITHIN 24N73W TO 25N74W TO 24N77W TO 22N77W TO
21N75W TO 22N73W TO 24N73W...INCLUDING ATLANTIC EXPOSURES...WINDS
20 TO 30 KT. SEAS TO 2.5 M.
.12 HOUR FORECAST TROPICAL STORM NINE NEAR 23.0N 76.7W. MAXIMUM
SUSTAINED WINDS 35 KT GUSTS 45 KT. TROPICAL STORM FORCE WINDS
WITHIN 30 NM ALL QUADRANTS EXCEPT 0 NM NW QUADRANT.
ELSEWHERE...WITHIN 25N75W TO 25N77W TO 23N78W TO 22N78W TO 21N76W
TO 23N74W TO 25N75W...INCLUDING ATLANTIC EXPOSURES...WINDS 20 TO
33 KT. SEAS 2.5 TO 3.0 M.
.24 HOUR FORECAST TROPICAL STORM NINE NEAR 24.4N 77.3W. MAXIMUM
SUSTAINED WINDS 40 KT GUSTS 50 KT. TROPICAL STORM FORCE WINDS
WITHIN 70 NM NE QUADRANT...60 NM SE QUADRANT...0 NM SW
QUADRANT...AND 50 NM NW QUADRANT. ELSEWHERE...WITHIN 26N75W TO
27N76W TO 26N79W TO 24N79W TO 22N77W TO 24N75W TO
26N75W...INCLUDING ATLANTIC EXPOSURES...WINDS 20 TO 33 KT. SEAS
2.5 TO 3.5 M.
.48 HOUR FORECAST TROPICAL STORM NINE NEAR 27.9N 78.2W. MAXIMUM
SUSTAINED WINDS 55 KT GUSTS 65 KT. TROPICAL STORM FORCE WINDS
SEAS 4 M OR GREATER WITHIN 110 NM NE QUADRANT...90 NM SE
QUADRANT...70 NM SW QUADRANT...AND 100 NM NW QUADRANT WITH SEAS
TO 4.5 M. ELSEWHERE...WITHIN 31N76W TO 30N77W TO 31N79W TO 29N80W
TO 26N78W TO 27N75W TO 31N76W...INCLUDING ATLANTIC
EXPOSURES...WINDS 20 TO 33 KT. SEAS 2.5 TO 4.0 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.

.REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.

$$
.FORECASTER KONARIK. NATIONAL HURRICANE CENTER.