HSFAT1
HIGH SEAS FORECAST FOR METAREA IV
NWS OCEAN PREDICTION CENTER WASHINGTON DC
1030 UTC THU MAR 19 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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).
FROM APRIL 1 TO OCTOBER 15, DUE TO CLIMATOLOGY, OF THE NORTH
ATLANTIC, HIGH SEAS FORECASTS WILL ONCE AGAIN INCLUDE ALL
FORECASTS OF WINDS 20 TO 30 KNOTS AND SEAS 2.5 METERS OR
GREATER.
SECURITE
NORTH ATLANTIC NORTH OF 31N TO 67N AND WEST OF 35W
ALL FORECASTS VALID OVER ICE FREE FORECAST WATERS
SYNOPSIS VALID 0600 UTC MAR 19.
24 HOUR FORECAST VALID 0600 UTC MAR 20.
48 HOUR FORECAST VALID 0600 UTC MAR 21.
.WARNINGS.
...STORM WARNING...
.LOW 65N39W 973 MB MOVING NE 10 KT. WITHIN 420 NM S
QUADRANT...AND WITHIN 120 NM S OF A LINE FROM 61N59W TO 60N53W
WINDS 40 TO 50 KT. SEAS 5 TO 7 M. ELSEWHERE N OF 47N E OF 60W
WINDS 25 TO 40 KT. SEAS 2.5 TO 6 M...HIGHEST NEAR LOW CENTER.
.24 HOUR FORECAST LOW E OF AREA NEAR 66N34W 969 MB. N OF 59N E OF
42W WINDS 40 TO 55 KT. SEAS 5 TO 10 M. ELSEWHERE N OF A LINE FROM
61N57W TO 52N48W TO 50N35W WINDS 25 TO 40 KT. SEAS 3 TO 6.5 M.
.48 HOUR FORECAST LOW E OF AREA NEAR 68N31W 980 MB. N OF 61N E OF
40W WINDS 40 TO 50 KT. SEAS 4 TO 6 M. ELSEWHERE N OF 58N E OF 45W
WINDS 25 TO 40 KT. SEAS 3 TO 5 M.
...GALE WARNING...
.LOW 37N63W 1018 MB MOVING NE 20 KT. WITHIN 300 NM EITHER SIDE OF
A LINE FROM 31N60W TO LOW CENTER TO 41N56W WINDS 25 TO 35 KT.
SEAS 2.5 TO 4 M.
.24 HOUR FORECAST LOW 43N54W 1008 MB. WITHIN 300 NM EITHER SIDE
OF A LINE FROM 31N66W TO LOW CENTER TO 48N46W WINDS 25 TO 35 KT.
SEAS 2.5 TO 4.5 M.
.48 HOUR FORECAST LOW 54N37W 992 MB. WITHIN 300 NM EITHER SIDE OF
A LINE FROM 31N62W TO 41N51W TO LOW CENTER...WITHIN 240 NM N
SEMICIRCLE...AND WITHIN 420 NM SE QUADRANT WINDS 25 TO 40 KT.
SEAS 2.5 TO 5.5 M.
...GALE WARNING...
.S OF 43N E OF 43W WINDS 25 TO 35 KT. SEAS 2.5 TO 5 M.
.24 HOUR FORECAST S OF 42N E OF 41W WINDS 20 TO 30 KT. SEAS 2.5
TO 4.5 M.
.48 HOUR FORECAST S OF 40N E OF 40W WINDS LESS THAN 25 KT. SEAS
2.5 TO 4 M.
...HEAVY FREEZING SPRAY...
.MODERATE TO HEAVY FREEZING SPRAY WITHIN THE GULF OF SAINT
LAWRENCE...AND N OF 58N W OF 53W. ELSEWHERE LIGHT TO MODERATE
FREEZING SPRAY N OF A LINE FROM 42N69W TO 50N47W.
.24 HOUR FORECAST MODERATE TO HEAVY FREEZING SPRAY N OF 63N W OF
51W. ELSEWHERE LIGHT TO MODERATE FREEZING SPRAY N OF A LINE FROM
42N68W TO 47N52W TO 58N45W TO 60N35W.
.48 HOUR FORECAST MODERATE TO HEAVY FREEZING SPRAY N OF 61N W OF
50W. ELSEWHERE LIGHT TO MODERATE FREEZING SPRAY N OF A LINE FROM
45N66W TO 50N46W TO 60N35W.
.SYNOPSIS AND FORECAST.
.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM N OF 59N W OF 50W.
.24 HOUR FORECAST DENSE FOG FROM 42N TO 50N BETWEEN 56W AND 43W.
.48 HOUR FORECAST DENSE FOG FROM 51N TO 58N BETWEEN 42W AND 35W.
.FORECASTER BYRD. OCEAN PREDICTION CENTER.
NWS NATIONAL HURRICANE CENTER MIAMI FL
ATLANTIC FROM 07N TO 31N W OF 35W INCLUDING CARIBBEAN SEA AND
GULF OF AMERICA
SYNOPSIS VALID 0600 UTC THU MAR 19.
24 HOUR FORECAST VALID 0600 UTC FRI MAR 20.
48 HOUR FORECAST VALID 0600 UTC SAT MAR 21.
.WARNINGS.
.NONE.
.SYNOPSIS AND FORECAST.
.ATLC WITHIN 31N69W TO 31N73W TO 27N79W TO 25N79W TO 25N77W TO
28N72W TO 31N69W...INCLUDING ATLANTIC EXPOSURES...N TO NE WINDS
20 TO 25 KT. SEAS TO 2.5 M. WITHIN 31N65W TO 31N67W TO 30N67W TO
29N67W TO 29N66W TO 31N65W S WINDS 20 TO 25 KT. SEAS 2.5 TO 3.0
M IN E TO SE SWELL.
.24 HOUR FORECAST WITHIN 29N69W TO 31N66W TO 31N77W TO 29N80W
TO 26N79W TO 24N74W TO 29N69W...INCLUDING ATLANTIC EXPOSURES...N
TO NE WINDS 20 TO 30 KT. SEAS 2.5 TO 3.0 M IN NE SWELL. WITHIN
31N59W TO 31N66W TO 30N67W TO 29N64W TO 26N63W TO 27N61W TO
31N59W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN E SWELL.
.48 HOUR FORECAST WITHIN 31N57W TO 31N65W TO 25N70W TO 24N68W TO
28N58W TO 31N57W S TO SW WINDS 20 TO 30 KT. SEAS 2.5 TO 3.0 M IN
SW TO W SWELL. WITHIN 31N65W TO 31N77W TO 27N79W TO 24N76W TO
25N71W TO 31N65W...INCLUDING ATLANTIC EXPOSURES...N TO NE WINDS
20 TO 25 KT. SEAS 2.5 TO 3.0 M IN NE SWELL.
.ATLC WITHIN 31N35W TO 31N42W TO 29N40W TO 26N35W TO 31N35W N
WINDS 20 TO 30 KT. SEAS 4.0 TO 5.5 M IN N SWELL. WITHIN 25N35W
TO 31N42W TO 28N63W TO 13N56W TO 17N35W TO 25N35W NE TO E WINDS
20 TO 25 KT. SEAS 2.5 TO 4.5 M IN NE SWELL.
.24 HOUR FORECAST WITHIN 31N35W TO 31N42W TO 29N41W TO 26N38W
TO 25N35W TO 31N35W N TO NE WINDS 20 TO 25 KT. SEAS 4.0 TO 5.5 M
IN N TO NE SWELL. WITHIN 24N35W TO 31N45W TO 22N59W TO 13N53W TO
13N35W TO 24N35W WINDS 20 KT OR LESS. SEAS 2.5 TO 4.5 M IN N TO
NE SWELL.
.48 HOUR FORECAST WITHIN 31N35W TO 31N44W TO 20N49W TO 15N58W
TO 07N50W TO 07N35W TO 31N35W WINDS 20 KT OR LESS. SEAS 2.5 TO
4.5 M IN N TO NE SWELL.
.CARIBBEAN 18 HOUR FORECAST WITHIN 22N81W TO 23N82W TO 22N84W TO
21N84W TO 21N83W TO 22N81W N TO NE WINDS 20 TO 25 KT. SEAS LESS
THAN 2.5 M.
.24 HOUR FORECAST WITHIN 22N80W TO 22N82W TO 20N83W TO 20N82W TO
21N80W TO 22N80W N TO NE WINDS 20 TO 25 KT. SEAS LESS THAN 2.5
M. WITHIN 14N81W TO 15N82W TO 15N83W TO 14N84W TO 11N84W TO
12N82W TO 14N81W...INCLUDING WITHIN 60 NM OF COAST OF
NICARAGUA...N WINDS 20 TO 25 KT. SEAS LESS THAN 2.5 M.
.48 HOUR FORECAST WITHIN 14N82W TO 15N82W TO 14N84W TO 12N84W
TO 12N83W TO 13N82W TO 14N82W...INCLUDING WITHIN 60 NM OF COAST
OF NICARAGUA...N 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 RAMOS. NATIONAL HURRICANE CENTER.
$$