High Seas Forecast
Issued by NWS

Home | Current Version | Previous Version | Text Only | Print | Product List | Glossary On
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32
000
FZNT01 KWBC 231000
HSFAT1

HIGH SEAS FORECAST FOR METAREA IV
NWS OCEAN PREDICTION CENTER WASHINGTON DC
1030 UTC SAT MAR 23 2024

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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 THE CLIMATOLOGY OF THE NORTH
ATLANTIC, HIGH SEAS FORECASTS WILL ONCE AGAIN INCLUDE ALL
FORECASTS OF WINDS 20 TO 30 KNOTS AND SEAS 8 FEET OR GREATER.
ALSO, PLEASE SEE HTTPS://OCEAN.WEATHER.GOV/PROPOSED_HIGH_SEAS
_TROPICAL.PHP FOR A PROPOSAL, AND A REQUEST FOR COMMENTS, TO
INCREASE READABILITY OF THE HIGH SEAS FORECAST (WEB ADDRESS
LOWERCASE).

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 23.
24 HOUR FORECAST VALID 0600 UTC MAR 24.
48 HOUR FORECAST VALID 0600 UTC MAR 25.

.WARNINGS.

...STORM WARNING...
.COMPLEX LOW WITH MAIN LOW 53N57W 989 MB MOVING NE 20 KT AND
SECOND LOW 56N46W 1000 MB MOVING NE 10 KT. BETWEEN 420 NM AND 600
NM NE QUADRANT OF MAIN LOW WINDS 40 TO 55 KT. SEAS 12 TO 21 FT.
ELSEWHERE WITHIN 840 NM N...720 NM NE...900 NM E...1080 NM
SE...8400 NM S...AND 540 NM SW QUADRANTS OF MAIN LOW WINDS 25 TO
40 KT. SEAS 9 TO 18 FT.
.24 HOUR FORECAST COMPLEX LOW WITH MAIN LOW 59N50W 995 MB AND
SECOND LOW 60N38W 990 MB. FROM 60N TO 64N E OF 44W WINDS 35 TO 50
KT. SEAS 12 TO 21 FT. ELSEWHERE N AND E OF A LINE FROM 45N40W TO
50N50W TO 60N64W WINDS 25 TO 40 KT. SEAS 10 TO 22 FT...HIGHEST
NEAR 53N40W.
.48 HOUR FORECAST LOW DISSIPATED. CONDITIONS DESCRIBED BELOW WITH
LOW 57N52W.

...STORM WARNING...
.LOW INLAND NEAR 34N82W 1006 MB MOVING NE 35 KT. FROM 31N TO 36N
W OF 73W WINDS 30 TO 45 KT. SEAS 9 TO 17 FT. ELSEWHERE FROM 31N
TO 39N W OF 68W WINDS 20 TO 30 KT. SEAS TO 11 FT.
.24 HOUR FORECAST LOW 35N71W 1003 MB. WITHIN 540 NM W OF A LINE
FROM 40N61W TO 32N67W WINDS 35 TO 50 KT. SEAS 10 TO 25
FT...HIGHEST NEAR 38N70W. ELSEWHERE FROM 31N TO 40N W OF 50W
WINDS 25 TO 35 KT. SEAS 8 TO 16 FT.
.48 HOUR FORECAST LOW 35N69W 988 MB. WITHIN 120 NM S...180 NM
W...AND 300 NM N QUADRANTS WINDS 40 TO 55 KT. SEAS 12 TO 29
FT...HIGHEST NW OF CENTER. ELSEWHERE FROM 31N TO 45N W OF 50W
WINDS 25 TO 40 KT. SEAS 8 TO 22 FT...HIGHEST SEAS FROM 31N TO 40N
BETWEEN 64W AND 74W.

...STORM WARNING...
.24 HOUR FORECAST LOW 45N66W 999 MB. FROM 40N TO 49N W OF 55W
WINDS 25 TO 40 KT. SEAS 9 TO 18 FT.
.42 HOUR FORECAST LOW 55N55W 986 MB. WITHIN 300 NM E AND 480 NM
SE QUADRANTS WINDS 35 TO 50 KT. SEAS 9 TO 17 FT.
.48 HOUR FORECAST LOW 57N52W 978 MB. WITHIN 240 NM E AND SW
SEMICIRCLE...AND WITHIN 180 NM NW QUADRANT WINDS 45 TO 60 KT.
SEAS 12 TO 25 FT...HIGHEST SE OF CENTER. ELSEWHERE WITHIN 600 NM
SE...300 NM NE...240 NM NW...AND 300 NM SW QUADRANTS WINDS 30 TO
45 KT. SEAS 9 TO 18 FT. ALSO FROM 45N TO 60N W OF 40W...AND N OF
46N E OF 40W WINDS 25 TO 35 KT. SEAS 8 TO 16 FT.

...GALE WARNING...
.48 HOUR FORECAST NEW LOW 63N59W 995 MB.N OF 60N W OF 50W WINDS
25 TO 40 KT. SEAS 8 TO 16 FT.

.SYNOPSIS AND FORECAST.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 50N TO 56N
BETWEEN 35W AND 40W...AND FROM 56N TO 63N BETWEEN 40W AND 62W.
.24 HOUR FORECAST DENSE FOG FROM 59N TO 64N E OF47W...FROM 58N TO
62N W OF 55W...AND NW OF A LINE FROM 45N68W TO 48N55W.
.48 HOUR FORECAST DENSE FOG WITHIN 300 NM E OF A LINE FROM 42N55W
TO 48N50W...FROM 54N TO 63N BETWEEN 42W AND 56W...FROM N OF 60N W
OF 57W...AND NW AND N OF A LINE FROM 60N42W TO 64N36W.

.LIGHT TO MODERATE FREEZING SPRAY IN THE GULF OF SAINT
LAWRENCE...AND N OF 61N W OF 50W.
.24 HOUR FORECAST LIGHT TO MODERATE FREEZING SPRAY N OF 48N IN
THE GULF OF SAINT LAWRENCE...W OF A LINE FROM 61N60W TO 55N50W TO
52N53W...AND NW OF A LINE FROM 62N58W TO 64N52W.
.48 HOUR FORECAST LIGHT TO MODERATE FREEZING SPRAY N OF 47N IN
THE GULF OF SAINT LAWRENCE...N OF 64N W OF GREENLAND...AND W OF A
LINE FROM 49N53W TO 51N50W TO 54N50W TO 57N55W TO 62N52W TO
65N55W.

.FORECASTER EHRBAR. OCEAN PREDICTION CENTER.

NWS NATIONAL HURRICANE CENTER MIAMI FL

ATLANTIC FROM 07N TO 31N W OF 35W INCLUDING CARIBBEAN SEA AND
GULF OF MEXICO

SYNOPSIS VALID 0600 UTC SAT MAR 23.
24 HOUR FORECAST VALID 0600 UTC SUN MAR 24.
48 HOUR FORECAST VALID 0600 UTC MON MAR 25.

.WARNINGS.

...ATLC GALE WARNING...
.WITHIN 31N74W TO 31N79W TO 30N78W TO 27N79W TO 30N77W TO 30N75W
TO 31N74W S WINDS 30 TO 35 KT. SEAS 8 TO 13 FT IN SE SWELL.
ELSEWHERE WITHIN 31N69W TO 31N81W TO 24N80W TO 21N72W TO 24N70W
TO 26N66W TO 31N69W...INCLUDING ATLANTIC EXPOSURES...SE TO S
WINDS
20 TO 30 KT. SEAS 8 TO 12 FT. WITHIN 23N60W TO 23N63W TO 24N63W
TO 23N65W TO 21N66W TO 22N59W TO 23N60W NE TO E WINDS 20 TO 25
KT. SEAS 9 TO 10 FT IN NE TO E SWELL. REMAINDER OF AREA WITHIN
31N50W TO 26N60W TO 29N68W TO 21N71W TO 20N66W TO 22N57W TO
31N50W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN NE TO E SWELL.
.24 HOUR FORECAST WITHIN 31N68W TO 31N70W TO 28N70W TO 27N69W TO
28N68W TO 31N68W SE TO S WINDS 30 TO 35 KT. SEAS 12 TO 14 FT IN
SE SWELL. ELSEWHERE WITHIN 29N64W TO 31N60W TO 31N71W TO 26N72W
TO 23N77W TO 24N66W TO 29N64W...INCLUDING ATLANTIC EXPOSURES...
SE TO S WINDS 20 TO 30 KT. SEAS 8 TO 14 FT IN E TO SE SWELL.
WITHIN 31N78W TO 31N81W TO 30N81W TO 30N80W TO 31N78W N TO NE
WINDS 20 TO 30 KT. SEAS 8 TO 10 FT IN NE SWELL. REMAINDER OF AREA
WITHIN 31N49W TO 31N72W TO 30N80W TO 21N70W TO 21N59W TO 25N59W
TO 31N49W WINDS 20 KT OR LESS. SEAS 8 TO 12 FT IN E TO SE SWELL.
.42 HOUR FORECAST WITHIN 31N60W TO 29N64W TO 31N66W TO 26N68W TO
26N63W TO 29N59W TO 31N60W S TO SW WINDS 20 TO 30 KT. SEAS 8 TO
13 FT IN E TO SE SWELL. ELSEWHERE WITHIN 31N35W TO 27N50W TO
31N63W TO 27N77W TO 22N70W TO 22N35W TO 31N35W WINDS 20 KT OR
LESS. SEAS 8 TO 12 FT IN E TO SE SWELL. WITHIN 31N70W TO 31N79W
TO 29N80W TO 27N79W TO 29N75W TO 29N71W TO 31N70W...INCLUDING
ATLANTIC EXPOSURES...N TO NE WINDS 20 TO 30 KT. SEAS 9 TO 16 FT
IN N TO NE SWELL. REMAINDER OF AREA WITHIN 31N79W TO 31N81W TO
30N81W TO 29N80W TO 27N80W TO 27N79W TO 31N79W WINDS 20 KT OR
LESS. SEAS 8 TO 12 FT IN NE SWELL.
.48 HOUR FORECAST WITHIN 31N58W TO 31N61W TO 30N65W TO 26N65W TO
26N61W TO 28N58W TO 31N58W S TO SW WINDS 20 TO 25 KT. SEAS 8 TO
11 FT IN SE SWELL. ELSEWHERE WITHIN 31N35W TO 30N56W TO 20N47W TO
19N37W TO 31N35W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN NE TO E
SWELL. WITHIN 31N69W TO 31N76W TO 29N76W TO 27N73W TO 28N72W TO
31N69W N WINDS 20 TO 30 KT. SEAS 12 TO 18 FT IN NW TO N SWELL.
REMAINDER OF AREA WITHIN 31N63W TO 31N81W TO 26N80W TO 26N71W TO
24N66W TO 26N60W TO 31N63W WINDS 20 KT OR LESS. SEAS 8 TO 14 FT
IN MIXED N AND SE SWELL.

.SYNOPSIS AND FORECAST.

.ATLC WITHIN 27N35W TO 25N42W TO 22N43W TO 19N42W TO 15N35W TO
27N35W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN NE TO E SWELL.
.24 HOUR FORECAST WITHIN 31N35W TO 28N38W TO 31N42W TO 21N43W TO
17N35W TO 31N35W WINDS 20 KT OR LESS. SEAS 8 FT IN NE TO E
SWELL.
.36 HOUR FORECAST CONDITIONS TO MERGE WITH AREA OF SWELL
DESCRIBED IN ATLC GALE WARNING.

.CARIBBEAN WITHIN 12N74W TO 13N75W TO 11N76W TO 11N75W TO 11N74W
TO 12N74W NE TO E WINDS 20 TO 25 KT. SEAS TO 9 FT IN NE TO E
SWELL.
.15 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS
LESS THAN 8 FT.

.CARIBBEAN WITHIN 18N84W TO 18N85W TO 17N86W TO 16N85W TO 16N84W
TO 17N84W TO 18N84W SE TO S WINDS 20 TO 25 KT. SEAS LESS THAN 8
FT.
.12 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS
LESS THAN 8 FT.

.CARIBBEAN 18 HOUR FORECAST WITHIN 21N85W TO 21N86W TO 21N87W TO
20N86W TO 21N85W NW TO N WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT.
.24 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS
LESS THAN 8 FT.

.GULF OF MEXICO WITHIN 29N92W TO 29N93W TO 29N94W TO 28N96W TO
27N95W TO 28N93W TO 29N92W NW TO NE WINDS 20 TO 25 KT. SEAS LESS
THAN 8 FT.
.24 HOUR FORECAST WITHIN 28N84W TO 29N86W TO 29N87W TO 28N87W TO
27N86W TO 27N85W TO 28N84W N WINDS 20 TO 25 KT. SEAS TO 9 FT IN
NW SWELL. ELSEWHERE WITHIN 26N84W TO 28N85W TO 28N87W TO 27N88W
TO 26N90W TO 23N87W TO 26N84W WINDS 20 KT OR LESS. SEAS 8 FT IN
NW SWELL.
.48 HOUR FORECAST WITHIN 30N84W TO 28N97W TO 24N98W TO 22N95W TO
22N88W TO 26N88W TO 30N84W SE WINDS 20 TO 25 KT. SEAS TO 8 FT.

.REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.


.FORECASTER STRIPLING. NATIONAL HURRICANE CENTER.

$$


USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.