HSFAT1
HIGH SEAS FORECAST FOR METAREA IV
NWS OCEAN PREDICTION CENTER WASHINGTON DC
0430 UTC THU APR 17 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0000 UTC APR 17.
24 HOUR FORECAST VALID 0000 UTC APR 18.
48 HOUR FORECAST VALID 0000 UTC APR 19.
.WARNINGS.
...GALE WARNING...
.LOW E OF AREA NEAR 49N29W 998 MB MOVING SE 25 KT. FROM 40N TO
48N E OF 38W AREA OF NW WINDS 25 TO 35 KT. SEAS 14 TO 20
FT...HIGHEST NEAR 44N35W. ELSEWHERE FROM 36N TO 51N E OF 45W
WINDS 20 TO 30 KT. SEAS 8 TO 15 FT.
.24 HOUR FORECAST LOW AND ASSOCIATED CONDITIONS WELL E OF AREA.
...GALE WARNING...
.LOW INLAND NEAR 52N63W 984 MB MOVING NE 05 KT. FROM 54N TO 60N
W OF 43W WINDS 25 TO 40 KT. SEAS 10 TO 21 FT. ALSO FROM 37N TO
42N BETWEEN 60W AND 67W WINDS 25 TO 35 KT. SEAS 10 TO 14 FT.
ELSEWHERE WITHIN 1080 NM S...AND 660 NM SE AND N QUADRANTS AND
FROM 51N TO 61N W OF 35W WINDS 20 TO 30 KT. SEAS 8 TO 13 FT...
HIGHEST NEAR 40N55W.
.24 HOUR FORECAST LOW INLAND NEAR 54N61W 995 MB AND A NEW LOW
FORMING NEAR 59N59W 996 MB. FRONT TO EXTEND FROM 60N62W TO
60N56W TO 54N40W TO 50N38W TO 38N52W. WITHIN 120 NM N AND NE OF
FRONT BETWEEN 43W AND 58W WINDS 35 TO 45 KT. SEAS 14 TO 25 FT.
ALSO WITHIN 300 NM N QUADRANT OF NEW LOW AND WITHIN 240 NM N AND
NE OF FRONT WINDS 25 TO 40 KT. SEAS 9 TO 18 FT. ELSEWHERE FROM
37N TO 51N BETWEEN 57W AND 67W...N OF 63N W OF
GREENLAND...WITHIN 780 NM SE QUADRANT OF NEW LOW AND WITHIN 300
NM NE AND E OF FRONT WINDS TO 25 KT. SEAS 8 TO 13 FT...HIGHEST
SE OF LOW.
.48 HOUR FORECAST COMBINED LOW 58N60W 1002 MB. FRONT TO EXTEND
FROM 62N63W TO 61N53W TO 55N35W. WITHIN 120 NM NE OF FRONT
BETWEEN 43W AND 54W WINDS 25 TO 40 KT. SEAS 10 TO 16 FT.
ELSEWHERE WITHIN 240 NM N OF FRONT WINDS 20 TO 30 KT. SEAS 8 TO
14 FT...HIGHEST NEAR 63N56W.
.SYNOPSIS AND FORECAST.
.36 HOUR FORECAST NEW LOW 42N52W 1016 MB. WITHIN 540 NM SW AND
420 NM SE QUADRANTS WINDS TO 25 KT. SEAS TO 10 FT.
.48 HOUR FORECAST LOW 44N42W 1015 MB. WITHIN 420 NM SE
SEMICIRCLE WINDS 20 TO 30 KT. SEAS TO 10 FT.
.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 43N TO 50N
BETWEEN 46W AND 53W...AND FROM 53N TO 62N W OF 54W.
.24 HOUR FORECAST DENSE FOG FROM 43N TO 49N BETWEEN 42W AND
51W...WITHIN 60 NM E OF A LINE FROM 56N44W TO 51N40W...AND W OF
A LINE FROM 64N59W TO 58N43W TO 56N59W AND FROM 55N TO 57N
BETWEEN 51W AND 54W.
.48 HOUR FORECAST DENSE FOG FROM W OF A LINE FROM 65N57W TO
60N48W TO 59N59W TO 55N58W...FROM 55N TO 58N BETWEEN 48W AND 53W
AND FROM 59N TO 63N BETWEEN 38W AND 44W.
.LIGHT FREEZING SPRAY N OF 63N W OF GREENLAND AND N OF A LINE
FRON 62N42W TO 64N35W.
.24 HOUR FORECAST LIGHT FREEZING SPRAY N OF 64N W OF GREENLAND
AND N OF A LINE FROM 61N42W TO 64N35W.
.48 HOUR FORECAST CONDITIONS IMPROVED.
.FORECASTER BANCROFT. 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 0000 UTC THU APR 17.
24 HOUR FORECAST VALID 0000 UTC FRI APR 18.
48 HOUR FORECAST VALID 0000 UTC SAT APR 19.
.WARNINGS.
.NONE.
.SYNOPSIS AND FORECAST.
.ATLC WITHIN 31N42W TO 31N49W TO 27N50W TO 26N48W TO 31N42W
WINDS 20 KT OR LESS. SEAS 8 FT IN NW SWELL.
.09 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS
LESS THAN 8 FT.
.ATLC WITHIN 08N49W TO 10N53W TO 10N55W TO 09N56W TO 06N52W TO
07N48W TO 08N49W WINDS 20 KT OR LESS. SEAS 8 FT IN NE SWELL.
.24 HOUR FORECAST WITHIN 12N42W TO 10N48W TO 14N55W TO 08N55W TO
06N51W TO 07N43W TO 12N42W WINDS 20 KT OR LESS. SEAS 8 FT IN NE
SWELL.
.48 HOUR FORECAST WITHIN 12N48W TO 12N54W TO 08N56W TO 07N50W TO
09N43W TO 12N48W WINDS 20 KT OR LESS. SEAS 8 FT IN NE SWELL.
.ATLC 06 HOUR FORECAST WITHIN 25N45W TO 26N47W TO 25N49W TO
23N50W TO 22N49W TO 23N46W TO 25N45W WINDS 20 KT OR LESS. SEAS 8
FT IN MIXED NW AND NE SWELL.
.24 HOUR FORECAST WITHIN 21N35W TO 25N37W TO 23N50W TO 15N51W TO
11N46W TO 16N42W TO 21N35W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT
IN MIXED NW AND NE TO E SWELL.
.48 HOUR FORECAST WITHIN 24N35W TO 22N46W TO 29N53W TO 14N50W TO
10N41W TO 13N35W TO 24N35W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT
IN MIXED NW AND NE TO E SWELL.
.ATLC 36 HOUR FORECAST WITHIN 29N64W TO 30N64W TO 30N67W TO
28N69W TO 28N67W TO 29N64W NE WINDS 20 TO 25 KT. SEAS 8 FT IN NW
TO N SWELL.
.48 HOUR FORECAST WITHIN 31N56W TO 31N61W TO 27N70W TO 24N70W TO
26N63W TO 31N56W NE WINDS 20 TO 25 KT. SEAS 8 TO 10 FT.
ELSEWHERE WITHIN 31N62W TO 30N65W TO 28N69W TO 26N74W TO 24N74W
TO 31N62W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN N TO NE SWELL.
.CARIBBEAN WITHIN 13N69W TO 13N76W TO 11N77W TO 10N76W TO 12N73W
TO 10N64W TO 13N69W...INCLUDING THE GULF OF VENEZUELA...NE WINDS
20 TO 30 KT. SEAS LESS THAN 8 FT. ELSEWHERE WITHIN 12N75W TO
12N77W TO 12N79W TO 11N79W TO 10N78W TO 10N77W TO 12N75W WINDS 20
KT OR LESS. SEAS 8 FT IN NE TO E SWELL.
.24 HOUR FORECAST WITHIN 13N70W TO 13N77W TO 12N78W TO 10N77W TO
11N74W TO 11N70W TO 13N70W...INCLUDING THE GULF OF
VENEZUELA...NE WINDS 20 TO 30 KT. SEAS LESS THAN 8 FT. ELSEWHERE
WITHIN 11N77W TO 11N78W TO 11N79W TO 10N78W TO 10N77W TO 11N77W
WINDS 20 KT OR LESS. SEAS 8 FT IN NE TO E SWELL.
.48 HOUR FORECAST WITHIN 12N74W TO 13N76W TO 12N77W TO 11N78W TO
10N76W TO 11N75W TO 12N74W NE WINDS 20 TO 30 KT. SEAS 8 TO 10
FT. ELSEWHERE WITHIN 14N70W TO 14N76W TO 13N74W TO 10N76W TO
12N72W TO 12N67W TO 14N70W...INCLUDING THE GULF OF VENEZUELA...NE
TO E WINDS 20 TO 30 KT. SEAS LESS THAN 8 FT. REMAINDER OF AREA
WITHIN 12N77W TO 14N79W TO 10N79W TO 10N76W TO 11N77W TO 12N77W
WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN NE TO E SWELL.
.CARIBBEAN 24 HOUR FORECAST WITHIN 20N74W TO 20N75W TO 21N79W TO
17N77W TO 19N74W TO 20N74W NE WINDS 20 TO 25 KT. SEAS LESS THAN
8 FT.
.48 HOUR FORECAST WITHIN 19N74W TO 22N80W TO 20N80W TO 18N75W TO
16N72W TO 18N70W TO 19N74W...INCLUDING BETWEEN CUBA AND
JAMAICA...NE TO E WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT.
.GULF OF AMERICA 24 HOUR FORECAST WITHIN 22N88W TO 22N89W TO
21N90W TO 22N90W TO 20N92W TO 19N91W TO 22N88W...INCLUDING
WITHIN 60 NM OF COAST OF CAMPECHE...NE TO E WINDS 20 TO 25 KT.
SEAS LESS THAN 8 FT.
.48 HOUR FORECAST WITHIN 25N79W TO 25N85W TO 25N91W TO 24N92W TO
21N91W TO 23N81W TO 25N79W...INCLUDING STRAITS OF FLORIDA...E
WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT.
.REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.
$$
.FORECASTER ADAMS. NATIONAL HURRICANE CENTER.