National Weather Service National Headquarters

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

000
FZNT01 KWBC 230339
HSFAT1

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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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

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 23.
24 HOUR FORECAST VALID 0000 UTC APR 24.
48 HOUR FORECAST VALID 0000 UTC APR 25.

.WARNINGS.

...STORM WARNING...
.LOW 33N71W 1007 MB MOVING NE 15 KT. WITHIN 240 NM W SEMICIRCLE
WINDS 35 TO 45 KT. SEAS 10 TO 16 FT. ELSEWHERE WITHIN 240 NM SE
AND 360 NM NW SEMICIRCLES WINDS 25 TO 35 KT. SEAS 8 TO 14 FT.
.06 HOUR FORECAST LOW 34N70W 1002 MB. FROM 32N TO 37N BETWEEN
66W AND 72W WINDS 35 TO 50 KT. SEAS 12 TO 18 FT.
.24 HOUR FORECAST LOW 37N66W 992 MB. FROM 33N TO 38N BETWEEN 64W
AND 69W WINDS 35 TO 50 KT. SEAS 18 TO 24 FT. ELSEWHERE WITHIN
600 NM NE...480 NM SE...360 NM SW...AND 300 NM NW QUADRANTS
WINDS 25 TO 35 KT. SEAS 12 TO 18 FT.
.48 HOUR FORECAST LOW 44N56W 1001 MB. WITHIN 180 NM NE AND 240
NM SE QUADRANTS WINDS 35 TO 45 KT. SEAS 18 TO 24 FT. ELSEWHERE
WITHIN 480 NM NE...420 NM SE...AND 360 NM SW QUADRANTS WINDS 25
TO 35 KT. SEAS 12 TO 18 FT.

...GALE WARNING...
.LOW 54N61W 988 MB MOVING NW 20 KT. WITHIN 360 NM S QUADRANT
WINDS 35 TO 45 KT. SEAS 9 TO 15 FT. ELSEWHERE FROM 46N TO 55N W
OF 51W WINDS 25 TO 35 KT. SEAS 8 TO 12 FT.
.24 HOUR FORECAST LOW INLAND AND ASSOCIATED CONDITIONS
DIMINISHED.

...GALE WARNING...
.LOW 54N44W 1004 MB MOVING NW 15 KT. FROM 58N TO 61N BETWEEN 42W
AND 51W WINDS 35 TO 45 KT. SEAS 12 TO 18 FT. ELSEWHERE FROM 57N
TO 62N BETWEEN 41W AND 53W...AND WITHIN 300 NM SE QUADRANT WINDS
25 TO 35 KT. SEAS 9 TO 15 FT.
.24 HOUR FORECAST LOW DISSIPATED AND ASSOCIATED CONDITIONS
DIMINISHED.

...GALE WARNING...
.LOW 41N54W 1012 MB MOVING NE 45 KT. WITHIN 240 NM E AND SE OF A
FRONT FROM 49N41W TO 45N47W TO LOW CENTER TO 38N59W WINDS 25 TO
35 KT. SEAS 8 TO 12 FT.
.24 HOUR FORECAST LOW 60N44W 996 MB. WITHIN 480 NM NE...660 NM
SE...AND 600 NM SW QUADRANTS WINDS 25 TO 40 KT. SEAS 12 TO 21 FT.
.48 HOUR FORECAST LOW E OF AREA NEAR 59N30W 1006 MB. WITHIN 420
NM SW QUADRANT...AND FROM 60N TO 64N BETWEEN 39W AND 42W WINDS
25 TO 35 KT. SEAS 12 TO 21 FT.

...GALE WARNING...
.LOW 60N41W 1013 MB MOVING NE 10 KT. FROM 59N TO 64N E OF 43W
WINDS 25 TO 35 KT. SEAS 8 TO 12 FT.
.24 HOUR FORECAST LOW AND CONDITIONS ABSORBED BY LOW 60N44W
DESCRIBED ABOVE.

...GALE WARNING...
.FROM 31N TO 36N E OF 38W AREA OF N TO NE WINDS 25 TO 35 KT.
SEAS 9 TO 15 FT.
.24 HOUR FORECAST FROM 31N TO 36N E OF 43W AREA OF NE WINDS 20
TO 30 KT. SEAS 9 TO 15 FT.
.48 HOUR FORECAST FROM 31N TO 35N E OF 41W AREA OF NE WINDS TO
25 KT. SEAS TO 10 FT.

...GALE WARNING...
.24 HOUR FORECAST LOW INLAND NEAR 53N66W 999 MB. WITHIN 480 NM
SE QUADRANT WINDS 25 TO 35 KT. SEAS TO 10 FT.
.48 HOUR FORECAST LOW 60N58W 1008 MB. FROM 48N TO 63N BETWEEN
43W AND 57W WINDS 20 TO 30 KT. SEAS 8 TO 12 FT.

...GALE WARNING...
.48 HOUR FORECAST LOW 48N65W 1005 MB. WITHIN 600 NM S...240 NM
W...AND 300 NM N QUADRANTS WINDS 25 TO 35 KT. SEAS TO 10 FT.

...HEAVY FREEZING SPRAY WARNING...
.LIGHT TO MODERATE FREEZING SPRAY FROM 47N TO 51N W OF 58W IN
THE GULF OF SAINT LAWRENCE.
.12 HOUR FORECAST MODERATE TO HEAVY FREEZING SPRAY FROM 50N TO
55N BETWEEN 52W AND 57W.
.24 HOUR FORECAST LIGHT TO MODERATE FREEZING SPRAY W OF A LINE
FROM 54N55W TO 58N57W TO 63N62W.
.48 HOUR FORECAST LIGHT TO MODERATE FREEZING SPRAY N OF 55N W OF
56W.

.SYNOPSIS AND FORECAST.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM N OF 57N W OF
46W...N OF 58N BETWEEN 36W AND 44W...AND FROM 43N TO 48N BETWEEN
43W AND 49W.
.24 HOUR FORECAST DENSE FOG N OF 58N E OF 66W.
.48 HOUR FORECAST DENSE FOG FROM 42N TO 55N BETWEEN 43W AND 61W
AND FROM 59N TO 65N W OF 54W.

.FORECASTER NOLT. OCEAN PREDICTION CENTER.

NATIONAL HURRICANE CENTER MIAMI FL

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

SYNOPSIS VALID 0000 UTC TUE APR 23.
24 HOUR FORECAST VALID 0000 UTC WED APR 24.
48 HOUR FORECAST VALID 0000 UTC THU APR 25.

.WARNINGS.

...ATLC GALE WARNING...
.ATLC COLD FRONT FROM 31N72W TO 25N80W. WITHIN 31N73W TO 31N75W
TO 30N76W TO 30N75W TO 30N74W TO 31N73W NW TO N WINDS 30 TO 40
KT. SEAS 10 TO 14 FT. ELSEWHERE WITHIN 31N69W TO 31N81W TO 29N81W
TO 27N79W TO 31N69W NW TO N WINDS 20 TO 30 KT...EXCEPT SW WINDS
20 TO 25 KT AHEAD OF FRONT. SEAS 8 TO 12 FT IN MIXED SWELL.
.24 HOUR FORECAST WEAKENING COLD FRONT FROM 31N64W TO 22.5N78W.
WITHIN 29N67W TO 31N63W TO 31N76W TO 27N77W TO 24N73W TO 29N67W
WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN N SWELL...EXCEPT TO 12 FT
NEAR 31N BETWEEN 67W AND 74W.
.48 HOUR FORECAST DISSIPATING STATIONARY FRONT FROM 31N59W TO
21N76W. WITHIN 29N63W TO 31N60W TO 30N66W TO 29N68W TO 26N66W TO
26N64W TO 29N63W WINDS 20 KT OR LESS. SEAS 8 FT IN NW TO N SWELL.

...ATLC GALE WARNING...
.ATLC LOW PRES E OF AREA NEAR 31N33.5W 1007 MB. WITHIN 31N35W
TO 31N36W TO 30N35W TO 31N35W N WINDS 30 TO 35 KT. SEAS 11 TO 14
FT IN MIXED SWELL. ELSEWHERE WITHIN 30N35W TO 31N36W TO 31N38W TO
30N38W TO 29N37W TO 29N35W TO 30N35W N WINDS 20 TO 30 KT. SEAS 9
TO 11 FT IN MIXED SWELL. REMAINDER OF AREA WITHIN 30N38W TO
31N38W TO 31N41W TO 29N40W TO 28N37W TO 28N35W TO 30N38W WINDS 20
KT OR LESS. SEAS 8 TO 10 FT IN NW TO N SWELL.
.18 HOUR FORECAST LOW PRES JUST E OF AREA NEAR 28N34W 1006 MB.
WITHIN 31N35W TO 31N41W TO 27N41W TO 26N38W TO 26N35W TO 31N35W N
TO NE WINDS 20 TO 30 KT. SEAS 10 TO 16 FT IN NE SWELL. ELSEWHERE
WITHIN 31N35W TO 31N43W TO 27N43W TO 26N41W TO 25N35W TO 31N35W
WINDS 20 KT OR LESS. SEAS 8 TO 11 FT IN N TO NE SWELL.
.24 HOUR FORECAST LITTLE CHANGE...EXCEPT WINDS BELOW GALE FORCE.
.48 HOUR FORECAST LOW PRES NEAR 23.5N37W 1012 MB. WITHIN 31N35W
TO 31N42W TO 28N41W TO 26N42W TO 23N40W TO 24N38W TO 31N35W NE TO
E WINDS 20 TO 25 KT. SEAS 8 TO 12 FT IN N TO NE SWELL. ELSEWHERE
WITHIN 28N36W TO 26N42W TO 31N47W TO 25N47W TO 20N42W TO 21N37W
TO 28N36W WINDS 20 KT OR LESS. SEAS 8 TO 11 FT IN N TO NE SWELL.

.SYNOPSIS AND FORECAST.

.ATLC AND CARIBBEAN 48 HOUR FORECAST WITHIN 20N73W TO 20N74W TO
20N75W TO 19N75W TO 19N74W TO 20N73W NE WINDS 20 TO 25 KT. SEAS
LESS THAN 8 FT.

.CARIBBEAN 48 HOUR FORECAST WITHIN 13N71W TO 12N75W TO 11N75W TO
12N73W TO 11N71W TO 12N70W TO 13N71W...INCLUDING THE GULF OF
VENEZUELA...NE TO E WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT.

.GULF OF MEXICO WITHIN 20N96W TO 20N97W TO 19N96W TO 19N95W TO
20N96W...INCLUDING WITHIN 60 NM OF COAST OF VERACRUZ...NW TO N
WINDS 20 TO 25 KT. SEAS 8 FT.
.06 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS
LESS THAN 8 FT.

.GULF OF MEXICO WITHIN 21N90W TO 21N91W TO 20N91W TO 19N91W TO
20N91W TO 21N90W...INCLUDING WITHIN 60 NM OF COAST OF
CAMPECHE...N TO NE WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT.
.06 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS
LESS THAN 8 FT.
.24 HOUR FORECAST WITHIN 21N91W TO 22N90W TO 21N92W TO 20N92W TO
19N92W TO 20N91W TO 21N91W...INCLUDING WITHIN 60 NM OF COAST OF
CAMPECHE...N TO NE WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT.
.30 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS
LESS THAN 8 FT.
.48 HOUR FORECAST WITHIN 22N89W TO 21N90W TO 21N91W TO 20N92W TO
19N91W TO 22N89W...INCLUDING WITHIN 60 NM OF COAST OF
CAMPECHE...N TO NE WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT.

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

$$
.FORECASTER LEWITSKY. NATIONAL HURRICANE CENTER.