High Seas Forecast - Western Atlantic, Caribbean and Gulf of Mexico

Expires:No;;334611
FZNT01 KWBC 180950
HSFAT1

HIGH SEAS FORECAST FOR METAREA IV 
NWS OCEAN PREDICTION CENTER WASHINGTON DC 
1030 UTC SAT OCT 18 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS 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). 

FOR ANY TROPICAL CYCLONE INFORMATION BEYOND 48 HOURS REFERENCE 
THE ASSOCIATED NWS TROPICAL CYCLONE FORECAST/ADVISORY (TCM). 

FROM OCTOBER 15 TO APRIL 1, DUE TO THE CLIMATOLOGY OF THE NORTH 
ATLANTIC AND THE FREQUENCY AND VOLUME OF WEATHER HAZARDS, ALONG 
WITH CUSTOMER FEEDBACK, HIGH SEAS FORECASTS WILL BE LIMITED TO 
WINDS OF 25 TO 35 KNOTS AND HIGHER, AND SEAS OF 4 METERS OR 
GREATER, ALONG WITH FREEZING SPRAY, DENSE FOG, VOLCANIC ASH, 
AND ANYTHING TROPICAL (INCLUDING A DEPRESSION). LESSER 
CONDITIONS WILL BE INCLUDED FOR WARNING CONDITIONS AND TO 
PRESERVE CONTINUITY WHERE APPROPRIATE. 

SECURITE 

NORTH ATLANTIC NORTH OF 31N TO 67N AND WEST OF 35W 

ALL FORECASTS VALID OVER ICE FREE FORECAST WATERS 

SYNOPSIS VALID 0600 UTC OCT 18. 
24 HOUR FORECAST VALID 0600 UTC OCT 19. 
48 HOUR FORECAST VALID 0600 UTC OCT 20. 

.WARNINGS. 

...STORM WARNING... 
.COMPLEX LOW WITH MAIN LOW 36N59W 983 MB MOVING NE 20 KT.  
WITHIN 240 NM S AND 300 NM SW QUADRANTS OF MAIN LOW WINDS 35 TO 
50 KT. SEAS 5.5 TO 8 M. ELSEWHERE FROM 31N TO 46N BETWEEN 50W 
AND 69W WINDS 25 TO 40 KT. SEAS 2.5 TO 7 M. 
.24 HOUR FORECAST LOW 40N52W 985 MB. FROM 31N TO 48N BETWEEN 41W 
AND 63W WINDS 25 TO 40 KT. SEAS 3 TO 6.5 M. 
.48 HOUR FORECAST LOW 42N46W 986 MB. FROM 35N TO 49N BETWEEN 57W 
AND 40W WINDS 25 TO 35 KT. SEAS 3 TO 7 M...HIGHEST S QUADRANT. 

...GALE WARNING... 
.06 HOUR FORECAST LOW 64N36W 1013 MB. N OF 63N E OF GREENLAND 
WINDS 20 TO 30 KT. SEAS TO 2.5 M. 
.12 HOUR FORECAST LOW 62N37W 1013 MB. WITHIN 180 NM W AND NW 
QUADRANTS WINDS 25 TO 35 KT. SEAS TO 3.5 M. 
.24 HOUR FORECAST LOW DISSIPATED WITH CONDITIONS DIMINISHED.  

.SYNOPSIS AND FORECAST. 

.FROM 31N TO 38N E OF 50W AREA OF SW WINDS 20 TO 30 KT. SEAS 2.5 
TO 4 M. 
.24 HOUR FORECAST CONDITIONS DESCRIBED WITH LOW 40N52W DESCRIBED 
ABOVE. 

.LOW E OF THE AREA 54N31W 989 MB MOVING SE 15 KT. WITHIN 360 NM 
NW QUADRANT WINDS 20 TO 30 KT. SEAS TO 3.5 M. 
.24 HOUR FORECAST LOW AND CONDITIONS MOVED E OF AREA. 

.48 HOUR FORECAST W OF A LINE FROM 32N76W TO 37N71W TO 42N71W 
AREA OF S TO SW WINDS 20 TO 30 KT. SEAS TO 3 M.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM W OF A LINE FROM 
50N50W TO 54N55W TO 58N60W. 
.24 HOUR FORECAST DENSE FOG FROM 43N TO 47N BETWEEN 45W AND 
53W...AND W OF A LINE FROM 58N61W TO 62N64W. 
.48 HOUR FORECAST DENSE FOG FROM 41N TO 45N BETWEEN 44W AND 51W 
AND FROM 64N TO 67N W OF 59W. 

.FORECASTER ROWLAND. 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 0600 UTC SAT OCT 18.
24 HOUR FORECAST VALID 0600 UTC SUN OCT 19.
48 HOUR FORECAST VALID 0600 UTC MON OCT 20.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.ATLC WITHIN 14N42W TO 16N43W TO 16N47W TO 11N48W TO 10N44W TO
11N42W TO 14N42W E WINDS 20 TO 25 KT. SEAS 2.5 TO 3.0 M.
.24 HOUR FORECAST WITHIN 14N53W TO 16N54W TO 16N56W TO 15N58W TO
12N57W TO 13N53W TO 14N53W E WINDS 20 TO 25 KT. SEAS 2.5 TO 3.0 
M.
.48 HOUR FORECAST WITHIN 19N50W TO 20N59W TO 17N61W TO 13N60W TO
14N55W TO 19N50W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN NW TO
N SWELL.

.ATLC WITHIN 31N42W TO 31N54W TO 28N57W TO 24N56W TO 24N51W TO
26N46W TO 31N42W SW WINDS 20 TO 30 KT. SEAS 2.5 TO 4.5 M. WITHIN
31N54W TO 31N67W TO 27N61W TO 28N56W TO 31N54W W WINDS 20 TO 30
KT. SEAS 4.0 TO 5.5 M. ELSEWHERE WITHIN 31N39W TO 28N61W TO 
31N68W TO 31N76W TO 25N70W TO 23N53W TO 31N39W WINDS 20 KT OR 
LESS. SEAS 2.5 TO 4.0 M IN NW TO N SWELL.
.24 HOUR FORECAST WITHIN 31N42W TO 31N47W TO 29N48W TO 29N46W TO
30N44W TO 31N42W SW WINDS 20 TO 25 KT. SEAS 2.5 TO 4.5 M. WITHIN
31N46W TO 31N58W TO 29N54W TO 29N51W TO 30N47W TO 31N46W SW TO W
WINDS 20 TO 25 KT. SEAS 4.0 TO 5.5 M. ELSEWHERE WITHIN 31N39W TO
31N76W TO 23N73W TO 22N62W TO 27N45W TO 31N39W WINDS 20 KT OR 
LESS. SEAS 2.5 TO 4.0 M IN NW TO N SWELL.
.48 HOUR FORECAST WITHIN 31N36W TO 31N68W TO 24N65W TO 20N56W TO
21N44W TO 31N36W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN NW TO
N SWELL.

.ATLC 30 HOUR FORECAST WITHIN 13N42W TO 13N43W TO 13N44W TO
12N45W TO 11N44W TO 11N42W TO 13N42W WINDS 20 KT OR LESS. SEAS
2.5 TO 3.0 M IN E SWELL.
.48 HOUR FORECAST WITHIN 12N48W TO 13N49W TO 13N51W TO 11N51W TO
10N50W TO 11N47W TO 12N48W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0
M IN E SWELL.

.REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.

$$
.FORECASTER AL. NATIONAL HURRICANE CENTER.