HSFAT1
HIGH SEAS FORECAST FOR METAREA IV
NWS OCEAN PREDICTION CENTER WASHINGTON DC
1630 UTC TUE SEP 16 2025
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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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://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 16.
24 HOUR FORECAST VALID 1200 UTC SEP 17.
48 HOUR FORECAST VALID 1200 UTC SEP 18.
.WARNINGS.
...STORM WARNING...
.LOW 56N39W 1000 MB MOVING S 10 KT. WITHIN 60 NM E OF A LINE
FROM 59N44W TO 63N41W TO 63N39W WINDS 40 TO 50 KT. SEAS 4 TO 5.5
M. ELSEWHERE FROM 56N TO 61N BETWEEN 42W AND 50W...AND WITHIN
120 E OF GREENLAND WINDS 25 TO 40 KT. SEAS 2.5 TO 4 M. ELSEWHERE
FROM 40N TO 50N E OF 51W WINDS 20 TO 30 KT. SEAS TO 2.5 M.
.24 HOUR FORECAST LOW 53N38W 1006 MB. WITHIN 60 NM E OF A LINE
FROM 59N46W TO 60N43W TO 63N41W WINDS 35 TO 50 KT. SEAS 4 TO 6.5
M. ELSEWHERE WITHIN 480 NM W SEMICIRCLE...AND WITHIN 120 NM E OF
GREENLAND WINDS 25 TO 35 KT. SEAS 2.5 TO 4.5 M.
.48 HOUR FORECAST LOW E OF AREA. FROM 41N TO 63N E OF 42W WINDS
TO 25 KT. SEAS TO 4 M.
...STORM WARNING...
.36 HOUR FORECAST LOW 58N66W 993 MB. WITHIN 300 NM E SEMICIRCLE
WINDS 25 TO 35 KT. SEAS TO 2.5 M.
.48 HOUR FORECAST LOW 59N59W 987 MB. WITHIN 300 NM E QUADRANT
WINDS 40 TO 50 KT. SEAS 3 TO 5.5 M. ELSEWHERE W OF A LINE FROM
47N60W TO 50N49W TO 60N42W TO 64N54W WINDS 25 TO 40 KT. SEAS TO
3 M.
...GALE WARNING...
.LOW 35N74W 1008 MB MOVING NW 10 KT. WITHIN 300 NM N AND 180 NM
S SEMICIRCLES WINDS 25 TO 40 KT. SEAS 2.5 TO 5 M.
.24 HOUR FORECAST LOW 37N76W 1012 MB. WITHIN 300 NM NE QUADRANT
WINDS TO 25 KT. SEAS TO 2.5 M.
.48 HOUR FORECAST LOW 39N73W 1014 MB. WINDS LESS THAN 25 KT.
SEAS LESS THAN 2.5 M.
...GALE WARNING...
.COMPLEX LOW WITH MAIN CENTER E OF AREA NEAR 51N26W 988 MB
MOVING NE 25 KT. FROM 36N TO 48N E OF 48W WINDS 25 TO 35 KT.
SEAS TO 3.5 M.
.24 HOUR FORECAST LOW AND CONDITIONS E OF AREA.
.SYNOPSIS AND FORECAST.
.LOW 36N63W 1017 MB DRIFTING E. FROM 36N TO 39N BETWEEN 58W AND
71W WINDS TO 25 KT. SEAS TO 2.5 M...EXCEPT WHERE NOTED ABOVE IN
WARNINGS SECTION.
.24 HOUR FORECAST LOW 36N60W 1016 MB. WITHIN 240 NM N SEMICIRCLE
WINDS TO 25 KT. SEAS TO 2.5 M.
.48 HOUR FORECAST LOW 36N56W 1015 MB. FROM 33N TO 39N BETWEEN
50W AND 59W WINDS 20 TO 30 KT. SEAS TO 2.5 M.
.LOW 51N53W 1013 MB MOVING SE 15 KT. WITHIN 120 NM SW QUADRANT
WINDS TO 25 KT. SEAS TO 2.5 M.
.24 HOUR FORECAST LOW DISSIPATED AND ASSOCIATED CONDITIONS
DESCRIBED IN WARNINGS SECTION ABOVE WITH LOW 53N38W.
.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 40N TO 42N
BETWEEN 67W AND 70W...N OF 62N W OF 62W...AND FROM 62N TO 64N
BETWEEN GREENLAND AND 40W.
.24 HOUR FORECAST DENSE FOG N OF 63N W OF 62W...AND FROM 60N TO
64N BETWEEN GREENLAND AND 38W.
.48 HOUR FORECAST DENSE FOG W OF A LINE FROM 52N52W TO
61N58W...AND N OF 65N W OF 61W.
.FORECASTER KELLS. 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 TUE SEP 16.
24 HOUR FORECAST VALID 1200 UTC WED SEP 17.
48 HOUR FORECAST VALID 1200 UTC THU SEP 18.
.WARNINGS.
...ATLC GALE WARNING...
.LOW PRES...AL92...NEAR 13N42W 1007 MB. WITHIN 19N39W TO 20N42W
TO 16N46W TO 12N44W TO 11N41W TO 15N37W TO 19N39W E WINDS 20 TO
30 KT. SEAS 2.5 TO 3.5 M.
.24 HOUR FORECAST LOW PRES...AL92...POSSIBLE TROPICAL
CYCLONE...NEAR 17N44W 1006 MB. WITHIN 19N40W TO 22N44W TO
21N49W TO 15N48W TO 12N41W TO 15N39W TO 19N40W WINDS 20 TO 30
KT. SEAS 2.5 TO 4.5 M.
.36 HOUR FORECAST LOW PRES...AL92...POSSIBLE TROPICAL
CYCLONE...NEAR 18N46W 1004 MB. WITHIN 20N46W TO 20N47W TO
19N47W TO 19N46W TO 20N46W WINDS 25 TO 35 KT. SEAS 4.5 TO 6.5 M.
ELSEWHERE...WITHIN 22N43W TO 24N49W TO 21N52W TO 16N50W TO
14N44W TO 17N40W TO 22N43W WINDS 20 TO 30 KT. SEAS 2.5 TO 4.5 M.
.48 HOUR FORECAST LOW PRES...AL92...POSSIBLE TROPICAL
CYCLONE...NEAR 20N48W. WITHIN 20N47W TO 21N48W TO 20N49W TO
20N48W TO 19N47W TO 20N47W WINDS 30 TO 45 KT. SEAS 4.5 TO 6.5 M.
ELSEWHERE...WITHIN 22N44W TO 24N47W TO 24N51W TO 19N52W TO
17N49W TO 19N43W TO 22N44W WINDS 20 TO 30 KT. SEAS 3.5 TO 4.5 M.
REMAINDER OF AREA...WITHIN 22N43W TO 25N50W TO 22N54W TO 18N53W
TO 15N45W TO 18N41W TO 22N43W WINDS 20 KT OR LESS. SEAS 2.5 TO
3.5 M IN MIXED SWELL.
.SYNOPSIS AND FORECAST.
.REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.
$$
.FORECASTER KONARIK. NATIONAL HURRICANE CENTER.