National Weather Service Weather Forecast Office

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

000
FZNT01 KWBC 232220
HSFAT1

HIGH SEAS FORECAST FOR METAREA IV
NWS OCEAN PREDICTION CENTER WASHINGTON DC
2230 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1800 UTC APR 23.
24 HOUR FORECAST VALID 1800 UTC APR 24.
48 HOUR FORECAST VALID 1800 UTC APR 25.

.WARNINGS.

...STORM WARNING...
.LOW 36N67W 995 MB MOVING NE 15 KT. WITHIN 240 NM W AND S
SEMICIRCLES  WINDS 35 TO 50 KT. SEAS 14 TO 22 FT. ELSEWHERE FROM
31N TO 43N BETWEEN 72W AND 54W WINDS 25 TO 40 KT. SEAS 9 TO 15
FT.
.24 HOUR FORECAST LOW 42N59W 999 MB. WITHIN 180 NM SE SEMICIRCLE
WINDS 35 TO 50 KT. SEAS 17 TO 27 FT. ELSEWHERE FROM 33N TO 48N
BETWEEN 64W AND 47W WINDS 25 TO 35 KT. SEAS 12 TO 18 FT.
.48 HOUR FORECAST COMPLEX LOW WITH MAIN CENTER 56N56W 995 MB AND
SECOND CENTER 51N60W 995 MB. WITHIN 360 NM NE AND 180 NM W
SEMICIRCLES OF FIRST CENTER AND WITHIN 300 NM S QUADRANT OF
SECOND LOW WINDS 25 TO 40 KT. SEAS 12 TO 21 FT. ELSEWHERE FROM
43N TO 62N W OF 41W WINDS 20 TO 30 KT. SEAS 9 TO 14 FT.

...GALE WARNING...
.LOW 59N53W 997 MB MOVING NW 20 KT. BETWEEN 240 NM AND 600 NM SE
QUADRANT WINDS 35 TO 45 KT. SEAS 10 TO 16 FT. ELSEWHERE W OF
FRONT FROM 58N46W TO 54N37W TO 43N42W WINDS 25 TO 35 KT. SEAS 8
TO 14 FT.
.24 HOUR FORECAST LOW INLAND AND ASSOCIATED CONDITIONS
DIMINISHED.

...GALE WARNING...
.LOW 54N37W 1007 MB MOVING N 20 KT. WITHIN 240 NM NE OF A FRONT
FROM 60N50W TO THE LOW CENTER TO 43N42W WINDS 25 TO 35 KT. SEAS
10 TO 15 FT.
.24 HOUR FORECAST LOW 62N36W 1005 MB. N OF A LINE FROM 52N35W TO
54N45W WINDS 25 TO 40 KT. SEAS 10 TO 14 FT.
.48 HOUR FORECAST LOW E OF AREA. CONDITIONS DIMINISHED.

...GALE WARNING...
.FROM 31N TO 36N E OF 42W AREA OF N TO NE WINDS 25 TO 35 KT.
SEAS 9 TO 16 FT.
.24 HOUR FORECAST FROM 31N TO 34N E OF 44W AREA OF NE WINDS 20
TO 30 KT. SEAS 8 TO 12 FT.
.48 HOUR FORECAST FROM 31N TO 33N E OF 39W AREA OF NE WINDS TO
25 KT. SEAS TO 10 FT.

...GALE WARNING...
.24 HOUR FORECAST LOW INLAND NEAR 46N69W 1004 MB. WITHIN 360 NM
S AND SE QUADRANTS WINDS 25 TO 35 KT. SEAS 8 TO 12 FT.
.48 HOUR FORECAST LOW AND CONDITIONS DESCRIBED WITH COMPLEX LOW
ABOVE.

.SYNOPSIS AND FORECAST.

.LIGHT TO MODERATE FREEZING SPRAY FROM 47N TO 55N BETWEEN 51W
AND 65W INCLUDING THE GULF OF SAINT LAWRENCE.
.24 HOUR FORECAST LIGHT TO MODERATE FREEZING SPRAY W OF A LINE
FROM 55N55W TO 63N59W TO 67N57W.
.48 HOUR FORECAST LIGHT TO MODERATE FREEZING SPRAY N OF 55N W OF
56W.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM N OF A LINE FROM
57N47W TO 60N57W AND N OF A LINE FROM 59N35W TO 63N39W.
.24 HOUR FORECAST DENSE FOG FROM 42N TO 48N BETWEEN 47W AND
61W...AND N OF 61N W OF 50W.
.48 HOUR FORECAST DENSE FOG FROM 42N TO 62N BETWEEN 41W AND
61W...AND N OF 61N W OF 50W.

.FORECASTER MUSONDA. 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 1800 UTC TUE APR 23.
24 HOUR FORECAST VALID 1800 UTC WED APR 24.
48 HOUR FORECAST VALID 1800 UTC THU APR 25.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.ATLC LOW PRES JUST E OF AREA AT 28N34W 1007 MB. WITHIN 31N35W
TO 31N43W TO 27N42W TO 25N40W TO 24N35W TO 31N35W N WINDS 20 TO
30 KT. SEAS 8 TO 13 FT.
.24 HOUR FORECAST LOW PRES AT 24N36W 1010 MB. WITHIN 31N35W TO
31N42W TO 28N42W TO 25N39W TO 24N35W TO 31N35W NE TO E WINDS 20
TO 25 KT. SEAS 8 TO 11 FT. WITHIN 27N42W TO 31N43W TO 29N47W TO
21N42W TO 21N37W TO 23N35W TO 27N42W WINDS 20 KT OR LESS. SEAS 8
TO 10 FT IN NE SWELL.
.48 HOUR FORECAST WITHIN 29N35W TO 31N35W TO 30N43W TO 26N46W TO
20N41W TO 27N39W TO 29N35W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT
IN NE SWELL.

.ATLC WITHIN 31N67W TO 31N77W TO 27N77W TO 25N74W TO
31N67W...INCLUDING ATLANTIC EXPOSURES... WINDS 20 KT OR LESS.
SEAS 8 TO 10 FT IN N SWELL.
.24 HOUR FORECAST WITHIN 31N64W TO 31N71W TO 29N71W TO 29N69W TO
29N65W TO 31N64W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN N
SWELL.
.36 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS
LESS THAN 8 FT.

.CARIBBEAN 12 HOUR FORECAST WITHIN 13N72W TO 13N77W TO 11N77W TO
10N75W TO 11N74W TO 12N72W TO 13N72W NE TO E WINDS 20 TO 25 KT.
SEAS LESS THAN 8 FT.
.24 HOUR FORECAST LITTLE CHANGE.
.48 HOUR FORECAST LITTLE CHANGE.

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

$$
.FORECASTER LANDSEA. NATIONAL HURRICANE CENTER.