HSFAT1
HIGH SEAS FORECAST FOR METAREA IV
NWS OCEAN PREDICTION CENTER WASHINGTON DC
1630 UTC MON APR 27 2026
CCODE/2:31:04:01:00/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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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).
SECURITE
NORTH ATLANTIC NORTH OF 31N TO 67N AND WEST OF 35W
ALL FORECASTS VALID OVER ICE FREE FORECAST WATERS
SYNOPSIS VALID 1200 UTC APR 27.
24 HOUR FORECAST VALID 1200 UTC APR 28.
48 HOUR FORECAST VALID 1200 UTC APR 29.
.WARNINGS.
...HURRICANE FORCE WIND WARNING...
.LOW 61N41W 979 MB MOVING NE 10 KT. FROM 57N TO 62N BETWEEN 39W
AND 51W WINDS 40 TO 55 KT. SEAS 5.5 TO 10 M. ELSEWHERE N OF 55N
E OF 56W WINDS 25 TO 40 KT. SEAS 3.5 TO 7 M.
.12 HOUR FORECAST LOW 64N38W 974 MB. WITHIN 90 NM NW AND N OF A
LINE FROM 58N44W TO 58N36W WINDS 50 TO 65 KT. SEAS 6.5 TO 10.5
M.
.24 HOUR FORECAST LOW 65N35W 984 MB. FROM 58N TO 60N E OF 46W
WINDS 40 TO 55 KT. SEAS 5.5 TO 9 M. ELSEWHERE N OF A LINE FROM
59N49W TO 56N40W TO 56N35W WINDS 25 TO 40 KT. SEAS 3.5 TO 6 M.
.48 HOUR FORECAST LOW NE OF AREA. FROM 57N TO 60N E OF 45W WINDS
25 TO 40 KT. SEAS 2.5 TO 5 M.
...GALE WARNING...
.COMPLEX LOW WITH MAIN LOW 45N39W 1002 MB MOVING NE 10 KT AND
SECOND LOW 48N44W 1005 MB MOVING SE 15 KT. WITHIN 420 NM SW AND
360 NM NW QUADRANTS WINDS 25 TO 40 KT. SEAS 2.5 TO 5.5 M.
.24 HOUR FORECAST LOW 46N36W 1009 MB. WITHIN 300 NM NW AND 480
NM SW QUADRANTS WINDS 25 TO 35 KT. SEAS 3 TO 5.5 M.
.48 HOUR FORECAST LOW MOVED E OF AREA. FROM 40N TO 49N E OF 41W
WINDS 20 TO 30 KT. SEAS 2.5 TO 4 M.
...GALE WARNING...
.LOW 39N67W 1010 MB MOVING S 10 KT THEN MOVING E AFTER 24 HOURS.
WITHIN 180 NM N AND NW SEMICIRCLE WINDS 25 TO 35 KT. SEAS 2.5 TO
4 M.
.24 HOUR FORECAST LOW 37N66W 1008 MB. WITHIN 180 NM W
SEMICIRCLE...AND FROM 39N TO 43N BETWEEN 58W AND 66W WINDS 25 TO
35 KT. SEAS 2.5 TO 5 M.
.48 HOUR FORECAST COMPLEX LOW WITH MAIN LOW 36N61W 1002 MB. FROM
36N TO 40N BETWEEN 52W AND 64W WINDS 25 TO 35 KT. SEAS 2.5 TO
5.5 M.
...HEAVY FREEZING SPRAY WARNING...
.MODERATE TO HEAVY FREEZING SPRAY N OF 60N W OF GREENLAND.
ELSEWHERE LIGHT TO MODERATE FREEZING SPRAY NW AND N OF A LINE
FROM 55N55W TO 59N42W.
.24 HOUR FORECAST MODERATE TO HEAVY FREEZING SPRAY N OF 64N W OF
54W. ELSEWHERE LIGHT TO MODERATE FREEZING SPRAY N OF 58N W OF
45W.
.48 HOUR FORECAST LIGHT TO MODERATE FREEZING SPRAY N OF A LINE
FROM 62N59W TO 60N46W.
.SYNOPSIS AND FORECAST.
.DENSE FOG. 48 HOUR FORECAST VSBY OCCASIONALLY LESS THAN 1 NM
FROM 54N TO 59N W OF 53W...AND FROM 58N TO 63N W OF 51W.
.FORECASTER ROWLAND. 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 MON APR 27.
24 HOUR FORECAST VALID 1200 UTC TUE APR 28.
48 HOUR FORECAST VALID 1200 UTC WED APR 29.
.WARNINGS.
.NONE.
.SYNOPSIS AND FORECAST.
.ATLC WITHIN 31N77.5W TO 31N81W TO 30N80W TO 30N78.5W TO
31N77.5W N TO NE WINDS 20 TO 25 KT. SEAS 2.5 TO 3.0 M IN N TO NE
SWELL.
.24 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS
LESS THAN 2.5 M.
.ATLC WITHIN 31N37W TO 31N48W TO 30N45W TO 29N40W TO 31N37W
WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN W TO NW SWELL.
.12 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS
LESS THAN 2.5 M.
.ATLC 18 HOUR FORECAST WITHIN 31N57W TO 31N62W TO 28N60W TO
28N58W TO 31N57W SE TO S WINDS 20 TO 25 KT. SEAS LESS THAN 2.5
M.
.24 HOUR FORECAST WITHIN 31N55W TO 31N60W TO 30N59W TO 29N56W TO
31N55W SE TO S WINDS 20 TO 25 KT. SEAS 2.5 TO 3.0 M.
.48 HOUR FORECAST WITHIN 31N48W TO 31N52W TO 30N52W TO 29N51W TO
30N49W TO 31N48W SE TO S WINDS 20 TO 25 KT. SEAS 2.5 TO 3.0 M.
WITHIN 31N58W TO 31N69W TO 30N68W TO 29N65W TO 29N61W TO 31N58W W
TO NW WINDS 20 TO 25 KT. SEAS 2.5 TO 3.0 M.
.CARIBBEAN 30 HOUR FORECAST WITHIN 12N69W TO 13N71W TO 13N73W TO
12N73W TO 12N71W TO 11N70W TO 12N69W...INCLUDING THE GULF OF
VENEZUELA... NE TO E WINDS 20 TO 25 KT. SEAS LESS THAN 2.5 M.
.48 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS
LESS THAN 2.5 M.
.GULF OF AMERICA 09 HOUR FORECAST WITHIN 23N88W TO 23N90W TO
22N91W TO 21N91W TO 22N88W TO 23N88W NE TO E WINDS 20 TO 25 KT.
SEAS LESS THAN 2.5 M.
.18 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS
LESS THAN 2.5 M.
.24 HOUR FORECAST LITTLE CHANGE.
.33 HOUR FORECAST WITHIN 23N88W TO 23N90W TO 22N91W TO 21N91W TO
22N88W TO 23N88W NE TO E WINDS 20 TO 30 KT. SEAS LESS THAN 2.5
M.
.42 HOUR FORECAST CONDITIONS IMPROVE. 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 AL. NATIONAL HURRICANE CENTER.