387
FZNT01 KWBC 121537
HSFAT1

HIGH SEAS FORECAST FOR METAREA IV
NWS OCEAN PREDICTION CENTER WASHINGTON DC
1630 UTC WED MAR 12 2025

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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1200 UTC MAR 12.
24 HOUR FORECAST VALID 1200 UTC MAR 13.
48 HOUR FORECAST VALID 1200 UTC MAR 14.

.WARNINGS.

...STORM WARNING...
.LOW 36N62W 994 MB MOVING NE 25 KT. FROM 31N TO 41N BETWEEN 49W
AND 72W WINDS 25 TO 40 KT. SEAS 8 TO 14 FT.
.12 HOUR FORECAST LOW 37N57W 995 MB. WITHIN 120 NM NW SEMICIRCLE
WINDS 40 TO 50 KT. SEAS 9 TO 16 FT.
.24 HOUR FORECAST LOW 40N51W 994 MB. WITHIN 180 NM SW
QUADRANT...AND FROM 39N TO 42N BETWEEN 44W AND 53W WINDS 40 TO
50 KT. SEAS 14 TO 21 FT. ELSEWHERE FROM 31N TO 45N BETWEEN 40W
AND 61W WINDS 25 TO 40 KT. SEAS 9 TO 17 FT.
.48 HOUR FORECAST LOW 41N43W 996 MB. FROM 31N TO 45N BETWEEN 35W
AND 54W WINDS 25 TO 40 KT. SEAS 10 TO 25 FT...HIGHEST IN SW
QUADRANT.

...STORM WARNING...
.COMPLEX LOW WITH MAIN CENTER 59N54W 998 MB MOVING NW 25 KT.
FROM 59N TO 61N BETWEEN 45W AND 61W WINDS 40 TO 50 KT. SEAS 14
TO 23 FT. ELSEWHERE N OF 55N BETWEEN 43W AND 58W...AND WITHIN
420 NM N OF A LINE FROM 50N35W TO 57N43W WINDS 25 TO 40 KT. SEAS
10 TO 20 FT.
.24 HOUR FORECAST LOW N OF AREA. CONDITIONS DESCRIBED BELOW WITH
LOW 61N56W.

...GALE WARNING...
.LOW E OF AREA NEAR 38N21W 998 MB MOVING E 20 KT. FROM 33N TO
50N E OF 46W WINDS 25 TO 35 KT. SEAS 9 TO 18 FT.
.24 HOUR FORECAST LOW WELL E OF AREA. FROM 41N TO 50N E OF 38W
WINDS TO 25 KT. SEAS TO 9 FT.
.48 HOUR FORECAST NEW LOW 50N41W 1007 MB. FROM 45N TO 52N E OF
43W WINDS 20 TO 30 KT. SEAS TO 11 FT.

...GALE WARNING...
.LOW INLAND NEAR 52N60W 995 MB MOVING NE 25 KT. NW OF A LINE
FROM 41N69W TO 47N54W WINDS 25 TO 40 KT. SEAS TO 9 FT.
.24 HOUR FORECAST LOW 61N56W 994 MB. W OF A LINE FROM 51N45W TO
61N35W WINDS 25 TO 35 KT. SEAS 8 TO 12 FT.
.36 HOUR FORECAST LOW 63N56W 992 MB. FROM 60N TO 65N BETWEEN
GREENLAND AND 55W WINDS 25 TO 35 KT. SEAS TO 12 FT.
.48 HOUR FORECAST LOW N OF AREA. N OF 62N W OF 52W WINDS TO 25
KT. SEAS TO 11 FT.

...GALE WARNING...
.48 HOUR FORECAST NEW LOW 65N39W 1008 MB. N OF 60N E OF
GREENLAND WINDS 25 TO 35 KT. SEAS 8 TO 14 FT.

...GALE WARNING...
.48 HOUR FORECAST INLAND LOW 58N67W 992 MB. FROM 55N TO 60N W OF
53W WINDS 25 TO 35 KT. SEAS TO 10 FT.

...HEAVY FREEZING SPRAY WARNING...
.HEAVY TO MODERATE FREEZING SPRAY N OF 47N W OF 63W. ELSEWHERE
LIGHT TO MODERATE FREEZING SPRAY W OF A LINE FROM 46N46W TO
55N51W TO 62N59W.
.24 HOUR FORECAST MODERATE TO HEAVY FREEZING SPRAY FROM 47N TO
50N BETWEEN 59W AND 62W...AND W OF A LINE FROM 51N52W TO 56N52W
TO 62N59W. ELSEWHERE LIGHT TO MODERATE FREEZING SPRAY W AND NW
OF A LINE FROM 43N63W TO 50N49W TO 56N50W TO 64N57W.
.48 HOUR FORECAST LIGHT TO MODERATE FREEZING SPRAY N OF 43N
BETWEEN 47W AND 65W.

.SYNOPSIS AND FORECAST.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 40N TO 44N
BETWEEN 64W AND 68W...FROM 45N TO 55N E OF 43W...AND N OF 48N
BETWEEN 55W AND 61W.
.24 HOUR FORECAST DENSE FOG FROM 37N TO 38N W OF 73W...FROM 42N
TO 52N BETWEEN 48W AND 45W...AND N OF 56N W OF 41W.
.48 HOUR FORECAST DENSE FOG FROM 37N TO 38N W OF 73W...FROM 43N
TO 60N BETWEEN 36W AND 50W...AND N OF 59N W OF 49W.

.FORECASTER KELLS. OCEAN PREDICTION CENTER.

NATIONAL HURRICANE CENTER MIAMI FL

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

SYNOPSIS VALID 1200 UTC WED MAR 12.
24 HOUR FORECAST VALID 1200 UTC THU MAR 13.
48 HOUR FORECAST VALID 1200 UTC FRI MAR 14.

.WARNINGS.

...ATLC GALE WARNING...
.COLD FRONT FROM 31N58W TO 20N70W. WITHIN 31N55W TO 31N58W TO
27N61W TO 26N60W TO 28N57W TO 31N55W SW WINDS 25 TO 35 KT. SEAS
10 TO 13 FT IN SW TO W SWELL. ELSEWHERE WITHIN 31N50W TO 31N71W
TO 24N65W TO 26N55W TO 31N50W S TO SW WINDS 20 TO 30 KT...EXCEPT
W TO NW WINDS W OF FRONT. SEAS 8 TO 16 FT IN MIXED SW AND NW
SWELL...HIGHEST NEAR 28N67.5W. REMAINDER OF AREA WITHIN 30N71W
TO 31N75W TO 27N78W TO 24N75W TO 22N70W TO 24N64W TO 30N71W...
INCLUDING ATLANTIC EXPOSURES...WINDS 20 KT OR LESS. SEAS 8 TO 15
FT IN NW SWELL...HIGHEST NE PART. SCATTERED TSTMS N OF 21N WITHIN
180 NM E OF FRONT.
.18 HOUR FORECAST COLD FRONT FROM 31N56W TO 19N66.5W. WITHIN
31N43W TO 31N63W TO 25N57W TO 26N51W TO 31N43W SW TO W WINDS 20
TO 30 KT...EXCEPT NW WINDS W OF FRONT. SEAS 8 TO 15 FT IN W TO NW
SWELL...HIGHEST NEAR 30.5N60.5W. ELSEWHERE WITHIN 31N63W TO
31N67W TO 27N70W TO 23N70W TO 20N66W TO 24N57W TO 31N63W WINDS 20
KT OR LESS. SEAS 8 TO 14 FT IN W TO NW SWELL...HIGHEST NE PART.
.24 HOUR FORECAST LITTLE CHANGE.
.48 HOUR FORECAST COLD FRONT WEAKENING FROM 31N39W TO 19N64W.
WITHIN 31N35W TO 31N51W TO 30N49W TO 30N42W TO 29N39W TO 30N35W
TO 31N35W SW WINDS 20 TO 25 KT...EXCEPT W TO NW WINDS W OF FRONT.
SEAS 8 TO 19 FT IN W TO NW SWELL...HIGHEST NEAR 31N48W.
ELSEWHERE WITHIN 31N39W TO 30N47W TO 31N60W TO 25N61W TO 24N52W
TO 26N43W TO 31N39W WINDS 20 KT OR LESS. SEAS 8 TO 17 FT IN NW TO
N SWELL...HIGHEST NEAR 30.5N39W.

.SYNOPSIS AND FORECAST.

.ATLC STATIONARY FRONT FROM 24.5N35W TO 23N42.5W TO 24.5N49W.
WITHIN 31N35W TO 31N48W TO 26N43W TO 24N35W TO 31N35W WINDS 20
KT OR LESS. SEAS 8 TO 13 FT IN NW SWELL...HIGHEST NEAR 31N35W.
.24 HOUR FORECAST DISSIPATING STATIONARY FRONT FROM 23N35W TO
24N40W. WITHIN 31N35W TO 31N39W TO 26N37W TO 25N35W TO 31N35W
WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN NW SWELL.
.42 HOUR FORECAST FRONT DISSIPATED. CONDITIONS MOVED E OF AREA.
OVER FORECAST WATERS WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.ATLC WITHIN 16N35W TO 08N52W TO 07N49W TO 10N40W TO 07N35W TO
16N35W WINDS 20 KT OR LESS. SEAS 8 FT IN NE TO E SWELL.
.24 HOUR FORECAST WITHIN 12N35W TO 13N38W TO 10N40W TO 07N39W TO
07N35W TO 12N35W WINDS 20 KT OR LESS. SEAS 8 FT IN NE SWELL.
.36 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS
LESS THAN 8 FT.

.CARIBBEAN WITHIN 11N74W TO 12N74W TO 12N75W TO 11N76W TO 10N75W
TO 11N75W TO 11N74W 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 LEWITSKY. NATIONAL HURRICANE CENTER.