National Weather Service Weather Forecast Office

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

000
FZNT01 KWBC 120952
HSFAT1

HIGH SEAS FORECAST FOR METAREA IV
NWS OCEAN PREDICTION CENTER WASHINGTON DC
1030 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0600 UTC APR 12.
24 HOUR FORECAST VALID 0600 UTC APR 13.
48 HOUR FORECAST VALID 0600 UTC APR 14.

.WARNINGS.

...STORM WARNING...
.FROM 33N TO 38N BETWEEN 72W AND 74W WINDS 40 TO 50 KT. SEAS 12
TO 19 FT. ELSEWHERE FROM 31N TO 41N W OF 65W WINDS 25 TO 40 KT.
SEAS 9 TO 15 FT.
.24 HOUR FORECAST WITHIN 420 NM E OF A LINE FROM 50N64W TO 39N65W
TO 32N69W WINDS 30 TO 45 KT. SEAS 10 TO 22 FT. ELSEWHERE W OF A
LINE FROM 31N74W TO 37N66W WINDS 25 TO 35 KT. SEAS 9 TO 15 FT.
.48 HOUR FORECAST WITHIN 360 NM E OF A LINE FROM 47N59W TO 32N61W
WINDS 30 TO 45 KT. SEAS 12 TO 22 FT. ELSEWHERE FROM 31N TO 54N W
OF 48W 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.
.06 HOUR FORECAST 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 35N39W 1020 MB MOVING E 15 KT. FROM 31N TO 38N BETWEEN 40W
AND 50W WINDS 20 TO 30 KT. SEAS 8 TO 12 FT.
.24 HOUR FORECAST LOW E OF AREA 34N32W 1016 MB. E OF A LINE FROM
31N50W TO 41N37W WINDS 25 TO 35 KT. SEAS 8 TO 14 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.

...GALE WARNING...
.36 HOUR FORECAST LOW 61N36W 1004 MB. WITHIN 360 NM S AND SW
QUADRANTS WINDS 25 TO 35 KT. SEAS TO 12 FT.
.48 HOUR FORECAST LOW E OF AREA 62N25W 995 MB. WITHIN 600 NM W
AND SW QUADRANTS WINDS 20 TO 30 KT. SEAS TO 12 FT.

.SYNOPSIS AND FORECAST.

.FROM 40N TO 56N E OF 46W WINDS 20 TO 30 KT. SEAS 9 TO 15 FT.
.24 HOUR FORECAST CONDITIONS E OF AREA.

.24 HOUR FORECAST FROM 46N TO 54N E OF 53W WINDS 20 TO 30 KT.
SEAS 8 TO 12 FT.
.48 HOUR FORECAST FROM 47N TO 55N E OF 55W WINDS 20 TO 30 KT.
SEAS 8 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 64W.
.24 HOUR FORECAST DENSE FOG N OF 61N BETWEEN 50W AND 62W...N OF
40N BETWEEN 56W AND 68W...AND FROM 50N TO 58N BETWEEN 36W AND
49W.
.48 HOUR FORECAST DENSE FOG FROM 42N TO 60N BETWEEN 42W 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 0600 UTC FRI APR 12.
24 HOUR FORECAST VALID 0600 UTC SAT APR 13.
48 HOUR FORECAST VALID 0600 UTC SUN APR 14.

.WARNINGS.

...ATLC GALE WARNING...
.COLD FRONT FROM 31N78W TO 23N83W. WITHIN 31N75W TO 31N79W TO
30N77W TO 30N76W TO 31N75W SW WINDS 30 TO 35 KT. SEAS 11 TO 14 FT
IN MIXED SWELL. ELSEWHERE WITHIN 31N69W TO 31N75W TO 30N76W TO
31N81W TO 27N78W TO 27N72W TO 31N69W S TO SW WINDS 20 TO 30 KT.
SEAS 8 TO 12 FT IN MIXED SWELL.
.06 HOUR FORECAST COLD FRONT FROM 31N74W TO 23N80W. LITTLE
CHANGE EXCEPT WINDS BELOW GALE FORCE.
.24 HOUR FORECAST COLD FRONT FROM 31N71W TO 22N79W. WITHIN
31N62W TO 31N80W TO 30N80W TO 29N70W TO 30N69W TO 30N63W TO
31N62W W WINDS 20 TO 25 KT. SEAS 8 TO 11 FT IN MIXED SWELL.
.48 HOUR FORECAST COLD FRONT FROM 31N62W TO 27N65W. WITHIN
31N58W TO 31N73W TO 29N71W TO 29N69W TO 30N66W TO 30N58W TO
31N58W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN W SWELL.

...CARIBBEAN GALE WARNING...
.WITHIN 11.5N74.5W TO 11.5N75.5W TO 11N75.5W TO 11N75W TO
11N74.5W TO 11.5N74.5W NE TO E WINDS 30 TO 35 KT. SEAS 9 TO 11
FT. ELSEWHERE WITHIN 14N71W TO 14N75W TO 13N77W TO 10N76W TO
11N73W TO 11N70W TO 14N71W...INCLUDING THE GULF OF VENEZUELA...NE
TO E WINDS 20 TO 30 KT. SEAS 8 TO 11 FT. REMAINDER OF AREA
WITHIN 14N73W TO 16N74W TO 16N77W TO 13N80W TO 11N79W TO 14N77W
TO 14N73W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN NE TO E SWELL.
.06 HOUR FORECAST LITTLE CHANGE EXCEPT WINDS BELOW GALE FORCE.
.18 HOUR FORECAST WITHIN 11.5N74.5W TO 12N75W TO 11N75.5W TO
11N74.5W TO 11N74W TO 11.5N74.5W NE WINDS 30 TO 35 KT. SEAS 8 TO
10 FT. ELSEWHERE WITHIN 14N72W TO 14N77W TO 13N79W TO 10N78W TO
11N75W TO 11N70W TO 14N72W...INCLUDING THE GULF OF VENEZUELA...NE
WINDS 20 TO 30 KT. SEAS 8 TO 10 FT. REMAINDER OF AREA WITHIN
12N79W TO 14N75W TO 15N79W TO 13N81W TO 10N81W TO 09N77W TO
12N79W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN NE TO E SWELL.
.24 HOUR FORECAST LITTLE CHANGE.
.30 HOUR FORECAST LITTLE CHANGE EXCEPT WINDS BELOW GALE FORCE.
.42 HOUR FORECAST WITHIN 11.5N74.5W TO 11.5N75W TO 11N75.5W TO
11N74.5W TO 11N74W TO 11.5N74.5W NE WINDS 30 TO 35 KT. SEAS 8 TO
10 FT. ELSEWHERE WITHIN 13N72W TO 13N75W TO 11N77W TO 10N76W TO
11N74W TO 11N70W TO 13N72W...INCLUDING THE GULF OF VENEZUELA...NE
WINDS 20 TO 30 KT. SEAS 8 TO 10 FT. REMAINDER OF AREA WITHIN
12N77W TO 13N76W TO 14N80W TO 12N83W TO 10N81W TO 10N76W TO
12N77W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN NE TO E SWELL.
.48 HOUR FORECAST LITTLE CHANGE.

.SYNOPSIS AND FORECAST.

.ATLC WITHIN 31N35W TO 31N52W TO 28N47W TO 29N35W TO 31N35W
WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN N SWELL.
.24 HOUR FORECAST CONDITIONS MERGED WITH AREA DESCRIBED BELOW.

.ATLC WITHIN 20N35W TO 24N43W TO 25N70W TO 06N56W TO 07N41W TO
20N35W...INCLUDING IN ATLANTIC EXPOSURES AND PASSAGES...NE TO E
WINDS 20 TO 25 KT. SEAS 8 TO 10 FT IN N SWELL.
.24 HOUR FORECAST WITHIN 31N35W TO 31N47W TO 22N58W TO 17N55W TO
21N42W TO 24N35W TO 31N35W NE WINDS 20 TO 25 KT. SEAS 8 TO 11 FT
IN N SWELL. ELSEWHERE WITHIN 25N35W TO 31N47W TO 27N65W TO
20N68W TO 06N56W TO 07N47W TO 25N35W...INCLUDING IN ATLANTIC
EXPOSURES AND PASSAGES...WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN
NE SWELL.
.48 HOUR FORECAST WITHIN 31N35W TO 31N43W TO 26N41W TO 26N39W TO
27N35W TO 31N35W N WINDS 20 TO 30 KT. SEAS 11 TO 16 FT IN N
SWELL. ELSEWHERE WITHIN 27N35W TO 31N57W TO 20N64W TO 10N57W TO
12N48W TO 21N35W TO 27N35W...INCLUDING IN ATLANTIC EXPOSURES AND
PASSAGES...WINDS 20 KT OR LESS. SEAS 8 TO 11 FT IN N TO NE SWELL.

.CARIBBEAN 42 HOUR FORECAST WITHIN 20N73W TO 20N76W TO 22N79W TO
21N80W TO 20N80W TO 19N75W TO 20N73W...INCLUDING BETWEEN CUBA
AND JAMAICA...NE WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT.
.48 HOUR FORECAST LITTLE CHANGE.

.GULF OF MEXICO WITHIN 27N82W TO 29N83W TO 30N86W TO 27N90W TO
25N91W TO 23N88W TO 27N82W NW TO N WINDS 20 TO 25 KT. 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.

.GULF OF MEXICO 18 HOUR FORECAST WITHIN 22N89W TO 22N91W TO
22N92W TO 20N92W TO 20N91W TO 21N90W TO 22N89W...INCLUDING
WITHIN 60 NM OF COAST OF CAMPECHE...NE 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.
.42 HOUR FORECAST WITHIN 21N90W TO 22N88W TO 22N90W TO 21N92W TO
20N92W TO 20N91W TO 21N90W...INCLUDING WITHIN 60 NM OF COAST OF
CAMPECHE...NE WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT.
.48 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.

$$