National Weather Service National Headquarters

• Home
• Site Map
• News
• Organization
• Search for: NWS All NOAA 

000
FZNT01 KWBC 120356
HSFAT1

HIGH SEAS FORECAST FOR METAREA IV
NWS OCEAN PREDICTION CENTER WASHINGTON DC
0430 UTC FRI APR 12 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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).

PLEASE SEE A PROPOSAL AND REQUEST FOR COMMENTS TO INCREASE THE
READABILITY OF THE HIGH SEAS FORECAST (WEB ADDRESS LOWERCASE).
HTTPS://OCEAN.WEATHER.GOV/PROPOSED_HIGH_SEAS_TROPICAL.PHP

SECURITE

NORTH ATLANTIC NORTH OF 31N TO 67N AND WEST OF 35W

ALL FORECASTS VALID OVER ICE FREE FORECAST WATERS

SYNOPSIS VALID 0000 UTC APR 12.
24 HOUR FORECAST VALID 0000 UTC APR 13.
48 HOUR FORECAST VALID 0000 UTC APR 14.

.WARNINGS.

...STORM WARNING...
.FROM 32N TO 35N BETWEEN 75W AND 77W WINDS 40 TO 50 KT. SEAS 12
TO 17 FT. ELSEWHERE FROM 31N TO 41N W OF 66W WINDS 25 TO 40 KT.
SEAS 9 TO 15 FT.
.24 HOUR FORECAST WITHIN 420 NM E OF A LINE FROM 45N66W TO 38N68W
TO 32N71W WINDS 30 TO 45 KT. SEAS 10 TO 22 FT. ELSEWHERE FROM 31N
TO 37N W OF 71W WINDS 25 TO 35 KT. SEAS 9 TO 15 FT.
.48 HOUR FORECAST WITHIN 360 NM E OF A LINE FROM 50N61W TO 41N60W
TO 32N63W WINDS 30 TO 45 KT. SEAS 10 TO 22 FT. ELSEWHERE FROM 31N
TO 52N W OF 50W WINDS 20 TO 30 KT. SEAS 8 TO 14 FT.

...GALE WARNING...
.FROM 56N TO 62N E OF 38W WINDS 20 TO 30 KT. SEAS 9 TO 14 FT.
.12 HOUR FORECAST NEW LOW E OF AREA 58N32W 998 MB WITHIN 240 NM W
SEMICIRCLE WINDS 25 TO 35 KT. SEAS 9 TO 14 FT.
.24 HOUR FORECAST CONDITIONS E OF AREA.

...GALE WARNING...
.LOW E OF AREA 46N33W 1006 MB MOVING NE 25 KT. FROM 40N TO 54N E
OF 48W WINDS 25 TO 35 KT. SEAS 9 TO 16 FT.
.24 HOUR FORECAST CONDITIONS E OF AREA.

...GALE WARNING...
.LOW 36N44W 1020 MB MOVING E 15 KT. FROM 32N TO 40N BETWEEN 42W
AND 52W WINDS 20 TO 30 KT. SEAS 8 TO 12 FT.
.24 HOUR FORECAST NEW LOW E OF AREA 35N33W 1020 MB. E OF A LINE
FROM 31N48W TO 41N38W WINDS 25 TO 35 KT. SEAS 8 TO 12 FT.
.48 HOUR FORECAST LOW E OF AREA 31N32W 1012 MB. WITHIN 600 NM NW
QUADRANT WINDS 25 TO 40 KT. SEAS 9 TO 18 FT.

.SYNOPSIS AND FORECAST.

.24 HOUR FORECAST FROM 46N TO 55N E OF 55W WINDS 20 TO 30 KT.
SEAS TO 11 FT.
.48 HOUR FORECAST FROM 47N TO 55N BETWEEN 36W AND 55W WINDS 20 TO
30 KT. SEAS 8 TO 12 FT.

.48 HOUR FORECAST LOW E OF AREA 61N30W 998 MB. WITHIN 540 NM SW
QUADRANT WINDS 20 TO 30 KT. SEAS TO 12 FT.

.LIGHT FREEZING SPRAY N OF 61N W OF GREENLAND AND WITHIN 120 NM E
OF GREENLAND.
.24 HOUR FORECAST LITTLE CHANGE.
.48 HOUR FORECAST LIGHT TO MODERATE FREEZING SPRAY N OF 60N W OF
GREENLAND.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM N OF 40N W OF 65W.
.24 HOUR FORECAST DENSE FOG N OF 61N BETWEEN 52W AND 62W AND N OF
40N BETWEEN 58W AND 68W.
.48 HOUR FORECAST DENSE FOG FROM 42N TO 60N BETWEEN 48W AND 62W.

.FORECASTER ACHORN. 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 0000 UTC FRI APR 12.
24 HOUR FORECAST VALID 0000 UTC SAT APR 13.
48 HOUR FORECAST VALID 0000 UTC SUN APR 14.

.WARNINGS.

...ATLC GALE WARNING...
.COLD FRONT FROM 31N80W TO 28N870W. WITHIN 31N77W TO 31N81W TO
29N81W TO 29N80W TO 31N77W SW WINDS 30 TO 35 KT. SEAS 10 TO 14 FT
IN MIXED SWELL. ELSEWHERE WITHIN 31N72W TO 31N77W TO 30N80W TO
26N80W TO 28N75W TO 27N71W TO 31N72W S WINDS 20 TO 30 KT. SEAS 8
TO 12 FT.
.12 HOUR FORECAST COLD FRONT FROM 31N74W TO 23N80W. LITTLE
CHANGE EXCEPT WINDS BELOW GALE FORCE.
.24 HOUR FORECAST 31N72W TO 22N79W. WITHIN 31N76.5W TO 31N80W TO
30.5N80W TO 30.5N79W TO 30.5N77W TO 31N76.5W W TO NW WINDS 20 TO
25 KT. SEAS 8 TO 9 FT. ELSEWHERE WITHIN 31N68W TO 31N78W TO
29N76W TO 30N69W TO 31N68W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT
IN MIXED SWELL.
.48 HOUR FORECAST 31N65W TO 21N74W. WITHIN 31N62W TO 31N74W TO
31N73W TO 30N68W TO 30N66W TO 30N64W TO 31N62W WINDS 20 KT OR
LESS. SEAS 8 TO 9 FT IN SW TO W SWELL.

...CARIBBEAN GALE WARNING...
.WITHIN 15N72W TO 15N73W TO 14N76W TO 11N76W TO 12N73W TO 11N70W
TO 15N72W...INCLUDING THE GULF OF VENEZUELA...NE TO E WINDS 20
TO 30 KT. SEAS 8 TO 9 FT. ELSEWHERE WITHIN 15N73W TO 17N77W TO
12N80W TO 11N80W TO 11N76W TO 13N76W TO 15N73W WINDS 20 KT OR
LESS. SEAS 8 TO 9 FT IN NE TO E SWELL.
.24 HOUR FORECAST WITHIN 11.5N74W TO 11.5N74.5W TO 11.5N75W TO
11N75W TO 11N74.5W TO 11.5N74W NE WINDS 30 TO 35 KT. SEAS 8 TO 10
FT. ELSEWHERE WITHIN 13N72W TO 14N76W TO 11N79W TO 10N77W TO
12N75W TO 11N70W TO 13N72W...INCLUDING THE GULF OF VENEZUELA...NE
WINDS 20 TO 30 KT. SEAS 8 TO 10 FT. REMAINDER OF AREA WITHIN
15N75W TO 15N79W TO 13N81W TO 10N81W TO 09N77W TO 15N75W WINDS 20
KT OR LESS. SEAS 8 TO 10 FT IN NE TO E SWELL.
.36 HOUR FORECAST LITTLE CHANGE EXCEPT WINDS BELOW GALE FORCE.
.48 HOUR FORECAST WITHIN 11.5N74.5W TO 11.5N75W TO 11N75W TO
11N74.5W TO 11.5N74.5W NE WINDS 30 TO 35 KT. SEAS 8 TO 10 FT.
ELSEWHERE WITHIN 13N72W TO 13N76W TO 10N78W TO 10N76W TO 11N74W
TO 11N70W TO 13N72W...INCLUDING THE GULF OF VENEZUELA...NE WINDS
20 TO 30 KT. SEAS 8 TO 9 FT. REMAINDER OF AREA WITHIN 13N77W TO
14N81W TO 11N82W TO 09N81W TO 09N77W TO 11N78W TO 13N77W WINDS 20
KT OR LESS. SEAS 8 TO 10 FT IN NE TO E SWEL.

.SYNOPSIS AND FORECAST.

.ATLC WITHIN 31N37W TO 31N52W TO 29N48W TO 29N44W TO 31N37W
WINDS 20 KT OR LESS. SEAS 8 FT IN N SWELL.
.24 HOUR FORECAST CONDITIONS MERGED WITH CONDITIONS DESCRIBED
BELOW.

.ATLC WITHIN 23N35W TO 23N51W TO 26N71W TO 06N54W TO 07N41W TO
14N35W TO 23N35W...INCLUDING IN ATLANTIC EXPOSURES AND PASSAGES
AND ATLANTIC EXPOSURES...NE TO E WINDS 20 TO 25 KT. SEAS 8 TO 10
FT IN N SWELL.
.24 HOUR FORECAST WITHIN 31N35W TO 31N55W TO 20N70W TO 06N56W TO
07N47W TO 16N46W TO 31N35W...INCLUDING IN ATLANTIC EXPOSURES AND
PASSAGES AND ATLANTIC EXPOSURES...NE TO E WINDS 20 TO 25 KT.
SEAS 8 TO 11 FT IN NE SWELL.
.48 HOUR FORECAST WITHIN 31N36W TO 31N45W TO 27N49W TO 22N48W TO
23N43W TO 31N36W NE WINDS 20 TO 30 KT. SEAS 10 TO 14 FT IN N
SWELL. ELSEWHERE WITHIN 24N35W TO 31N35W TO 31N56W TO 21N66W TO
10N54W TO 24N35W...INCLUDING IN ATLANTIC EXPOSURES AND PASSAGES
AND ATLANTIC EXPOSURES...WINDS 20 KT OR LESS. SEAS 8 TO 11 FT IN
N TO NE SWELL.

.CARIBBEAN 48 HOUR FORECAST WITHIN 20N73W TO 20N76W TO 22N79W TO
21N81W TO 19N76W TO 19N73W TO 20N73W...INCLUDING BETWEEN CUBA
AND JAMAICA...NE WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT.

.GULF OF MEXICO WITHIN 29N83W TO 30N84W TO 30N86W TO 27N91W TO
26N89W TO 27N86W TO 29N83W NW WINDS 20 TO 25 KT. SEAS 9 TO 11 FT.
ELSEWHERE WITHIN 27N83W TO 29N83W TO 26N88W TO 30N86W TO 27N93W
TO 22N91W TO 27N83W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN W TO
NW SWELL.
.12 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS
LESS THAN 8 FT.

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


.FORECASTER AREINHART. NATIONAL HURRICANE CENTER.

$$