HSFAT1
HIGH SEAS FORECAST FOR METAREA IV
NWS OCEAN PREDICTION CENTER WASHINGTON DC
2230 UTC THU NOV 20 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1800 UTC NOV 20.
24 HOUR FORECAST VALID 1800 UTC NOV 21.
48 HOUR FORECAST VALID 1800 UTC NOV 22.
.WARNINGS.
...GALE WARNING...
.LOW 64N39W 990 MB DRIFTING SW. N OF 48N BETWEEN 35W AND 45W
WINDS 25 TO 35 KT. SEAS 2.5 TO 5 M.
.24 HOUR FORECAST LOW 62N38W 996 MB. WITHIN 180 NM N AND NW
QUADRANTS WINDS 25 TO 40 KT. SEAS 3 TO 5 M. ELSEWHERE N OF 51N
BETWEEN 35W AND 52W WINDS 20 TO 30 KT. SEAS TO 4 M.
.48 HOUR FORECAST LOW E OF THE AREA. WITHIN 360 NM S OF A LINE
FROM 59N35W TO 60N46W WINDS 25 TO 35 KT. SEAS TO 4 M.
...GALE WARNING...
.LOW 33N54W 1014 MB MOVING NE 20 KT. FROM 31N TO 36N BETWEEN 46W
AND 56W WINDS TO 25 KT. SEAS TO 2.5 M.
.24 HOUR FORECAST LOW 40N47W 1012 MB. WITHIN 180 NM E AND SE
QUADRANTS WINDS 25 TO 35 KT. SEAS TO 4 M. ELSEWHERE FROM 31N TO
43N BETWEEN 38W AND 51W WINDS 20 TO 30 KT. SEAS TO 3 M.
.48 HOUR FORECAST LOW 47N39W 1006 MB. WITHIN 240 NM SE QUADRANT
WINDS 25 TO 35 KT. SEAS 3 TO 5 M. ELSEWHERE WITHIN 300 NM OF LOW
CENTER AND WITHIN 240 NM E OF A FRONT FROM THE LOW TO 33N46W
WINDS 20 TO 30 KT. SEAS TO 4 M.
...GALE WARNING...
.LOW 39N65W 1013 MB MOVING NE 15 KT. WITHIN 240 NM OF LOW CENTER
WINDS TO 25 KT. SEAS TO 2.5 M.
.24 HOUR FORECAST LOW 44N61W 1009 MB. FROM 39N TO 46N BETWEEN
55W AND 63W WINDS 20 TO 30 KT. SEAS TO 3 M.
.36 HOUR FORECAST LOW 46N59W 1006 MB. WITHIN 180 NM NE
SEMICIRCLE WINDS 25 TO 35 KT. SEAS TO 3.5 M.
.48 HOUR FORECAST LOW ABSORBED INTO INLAND LOW NEAR 54N63W 995
MB. FROM 48N TO 50N W OF 62W WINDS 25 TO 35 KT. SEAS TO 3 M.
ELSEWHERE FROM 46N TO 57N W OF 49W WINDS 20 TO 30 KT. SEAS TO
2.5 M.
...GALE WARNING...
.48 HOUR FORECAST LOW 42N66W 1000 MB. WITHIN 240 NM S QUADRANT
WINDS 25 TO 35 KT. SEAS TO 3 M. ELSEWHERE FROM 31N TO 42N W OF
63W WINDS 20 TO 30 KT. SEAS TO 2.5 M.
.SYNOPSIS AND FORECAST.
.LOW 50N60W 993 MB MOVING E 15 KT. FROM 49N TO 58N W OF 45W
WINDS 20 TO 30 KT. SEAS TO 4 M.
.24 HOUR FORECAST LOW DISSIPATED AND ASSOCIATED CONDITIONS
DIMINISHED.
.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM WITHIN 120 NM
EITHER SIDE OF A LINE FROM 62N65W TO 55N49W.
.24 HOUR FORECAST DENSE FOG N OF A LINE FROM 60N42W TO
65N35W...WITHIN 120 NM OF THE W GREENLAND COAST FROM 61N TO
67N...AND N OF 60N W OF 63W.
.48 HOUR FORECAST DENSE FOG W OF A LINE FROM 50N50W TO 55N52W TO
64N64W.
.AREAS OF LIGHT FREEZING SPRAY N OF 65N W OF 60W.
.24 HOUR FORECAST LITTLE CHANGE.
.48 HOUR FORECAST AREAS OF LIGHT FREEZING SPRAY N OF 64N W OF
60W AND N OF A LINE FROM 61N42W TO 65N35W.
.FORECASTER COLLINS. 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 NOV 20.
24 HOUR FORECAST VALID 1800 UTC FRI NOV 21.
48 HOUR FORECAST VALID 1800 UTC SAT NOV 22.
.WARNINGS.
.NONE.
.SYNOPSIS AND FORECAST.
.ATLC WITHIN 31N35W TO 31N49W TO 28N46W TO 27N35W TO 31N35W
WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN W TO NW SWELL.
.24 HOUR FORECAST WITHIN 31N35W TO 31N48W TO 28N43W TO 24N38W TO
25N35W TO 31N35W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.5 M IN NE TO
SE SWELL.
.48 HOUR FORECAST WITHIN 31N35W TO 31N48W TO 24N43W TO 27N41W TO
24N35W TO 31N35W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN NE TO
E SWELL.
.CARIBBEAN WITHIN 11N77W TO 12N77W TO 12N79W TO 11N79W TO 10N78W
TO 10N77W TO 11N77W WINDS 20 KT OR LESS. SEAS 2.5 M IN NE TO E
SWELL.
.06 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS
LESS THAN 2.5 M.
.CARIBBEAN 36 HOUR FORECAST WITHIN 13N74W TO 13N76W TO 11N76W TO
11N75W TO 12N74W TO 13N74W NE TO E WINDS 20 TO 25 KT. SEAS LESS
THAN 2.5 M.
.48 HOUR FORECAST WITHIN 13N74W TO 13N75W TO 12N76W TO 12N78W TO
11N78W TO 11N76W TO 13N74W NE TO E WINDS 20 TO 25 KT. SEAS LESS
THAN 2.5 M.
.REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.
$$
.FORECASTER ADAMS. NATIONAL HURRICANE CENTER.