HSFAT1
HIGH SEAS FORECAST FOR METAREA IV
NWS OCEAN PREDICTION CENTER WASHINGTON DC
1630 UTC FRI SEP 18 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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://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 18.
24 HOUR FORECAST VALID 1200 UTC SEP 19.
48 HOUR FORECAST VALID 1200 UTC SEP 20.
.WARNINGS.
...STORM WARNING...
.06 HOUR FORECAST INTENSIFYING LOW 50N63W 1003 MB. WITHIN 300 NM
SE SEMICIRCLE WINDS 20 TO 30 KT. SEAS LESS THAN 2.5 M.
.12 HOUR FORECAST LOW 50N60W 992 MB. FROM 46N TO 52N BETWEEN 50W
AND 66W WINDS 25 TO 40 KT. SEAS 2.5 TO 3.5 M.
.24 HOUR FORECAST LOW 50N53W 987 MB. WITHIN 180 NM W QUADRANT
WINDS 40 TO 50 KT. SEAS 2.5 TO 4 M. ELSEWHERE WITHIN 780 NM NW
OF A LINE FROM 48N37W TO 37N61W WINDS 25 TO 40 KT. SEAS 2.5 TO 4
M. ALSO E OF A LINE FROM 38N55W TO 46N43W WINDS 20 TO 30 KT.
SEAS TO 3.5 M.
.36 HOUR FORECAST LOW 52N49W 981 MB. WITHIN 300 NM W SEMICIRCLE
WINDS 45 TO 60 KT. SEAS 5 TO 8 M.
.48 HOUR FORECAST LOW 53N44W 981 MB. WITHIN 480 NM S AND 300 NM
W QUADRANTS WINDS 40 TO 50 KT. SEAS 5 TO 8.5 M. ELSEWHERE E OF A
LINE FROM 38N47W TO 57N58W TO 62N42W WINDS 25 TO 40 KT. SEAS 3
TO 6 M.
...GALE WARNING...
.COMPLEX LOW WITH FIRST CENTER E OF AREA NEAR 61N27W 978 MB
MOVING E 25 KT AND SECOND CENTER 61N46W 990 MB MOVING NE 10 KT.
WITHIN 720 NM N OF A LINE FROM 50N35W TO 51N47W TO 59N54W WINDS
25 TO 40 KT. SEAS 3 TO 6.5 M...HIGHEST NEAR 59N46W. ELSEWHERE N
OF 59N E OF 42W WINDS TO 25 KT. SEAS TO 3 M.
.24 HOUR FORECAST COMPLEX LOW WITH FIRST CENTER WELL E OF AREA
AND SECOND CENTER 62N40W 996 MB. FROM 57N TO 60N E OF 44W WINDS
25 TO 35 KT. SEAS 3 TO 5.5 M.
.48 HOUR FORECAST LOW JUST E OF AREA NEAR 65N32W 1002 MB. N OF
65N E OF 38W WINDS 20 TO 30 KT. SEAS 2.5 TO 4 M.
.SYNOPSIS AND FORECAST.
.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 42N TO 44N W
OF 67W.
.24 HOUR FORECAST CONDITIONS IMPROVED.
.48 HOUR FORECAST DENSE FOG N OF 64N E OF 40W.
.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 FRI SEP 18.
24 HOUR FORECAST VALID 1200 UTC SAT SEP 19.
48 HOUR FORECAST VALID 1200 UTC SUN SEP 20.
.WARNINGS.
.NONE.
.SYNOPSIS AND FORECAST.
.ATLC FROM 20N TO 21N BETWEEN 70W AND 72W SE WINDS 20 TO 25 KT.
SEAS
LESS THAN 2.5 M.
.06 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.
.CARIBBEAN FROM 11N TO 16N BETWEEN 69W AND 76W...INCLUDING THE
GULF OF VENEZUELA...NE TO E WINDS 20 TO 25 KT. SEAS TO 2.5 M.
.12 HOUR FORECAST LITTLE CHANGE...EXCEPT SEAS TO 3.0 M OFFSHORE
COLOMBIA.
.24 HOUR FORECAST FROM 11N TO 15N BETWEEN 70W AND
76W...INCLUDING
THE GULF OF VENEZUELA...NE TO E WINDS 20 TO 25 KT. SEAS TO 2.5 M.
.30 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.
.REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.
$$
.FORECASTER GR. NATIONAL HURRICANE CENTER.