HSFAT1
HIGH SEAS FORECAST FOR METAREA IV
NWS OCEAN PREDICTION CENTER WASHINGTON DC
1630 UTC WED JUL 29 2026
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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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).
SECURITE
NORTH ATLANTIC NORTH OF 31N TO 67N AND WEST OF 35W
ALL FORECASTS VALID OVER ICE FREE FORECAST WATERS
SYNOPSIS VALID 1200 UTC JUL 29.
24 HOUR FORECAST VALID 1200 UTC JUL 30.
48 HOUR FORECAST VALID 1200 UTC JUL 31.
.WARNINGS.
.NONE.
.SYNOPSIS AND FORECAST.
.LOW 42N53W 1010 MB MOVING NE 25 KT. WITHIN 300 NM S AND 240 NM
SE QUADRANTS WINDS 20 TO 30 KT. SEAS TO 3 M.
.24 HOUR FORECAST LOW 47N40W 1010 MB. FROM 39N TO 46N BETWEEN
38W AND 47W WINDS TO 25 KT. SEAS TO 2.5 M.
.48 HOUR FORECAST COMPLEX LOW WITH MEAN CENTER E OF AREA NEAR
46N31W 1008 MB. FROM 40N TO 54N E OF 42W WINDS TO 25 KT. SEAS TO
2.5 M.
.LOW 39N63W 1007 MB MOVING NE 15 KT. S OF 39N BETWEEN A LINE
FROM 39N55W TO 31N60W AND A LINE FROM 39N64W TO 31N70W WINDS 20
TO 30 KT. SEAS TO 3.5 M.
.24 HOUR FORECAST LOW AND ASSOCIATED CONDITIONS MERGED WITH LOW
42N69W DESCRIBED BELOW.
.LOW 48N52W 1003 MB MOVING NE 10 KT. WITHIN 240 NM N AND NW AND
300 NM S QUADRANTS WINDS TO 25 KT. SEAS TO 2.5 M.
.24 HOUR FORECAST LOW 49N48W 1010 MB. FROM 49N TO 53N E OF 53W
AND WITHIN 300 NM S QUADRANT WINDS TO 25 KT. SEAS TO 2.5 M.
.48 HOUR FORECAST LOW AND ASSOCIATED CONDITIONS MERGED WITH
COMPLEX LOW 46N31W DESCRIBED ABOVE.
.LOW 41N73W 998 MB MOVING NE 05 KT. N OF 32N BETWEEN 70W AND 75W
WINDS TO 25 KT. SEAS TO 2.5 M.
.24 HOUR FORECAST LOW 42N69W 1004 MB. WITHIN 180 NM N
QUADRANT...AND S OF 40N BETWEEN A LINE FROM 40N52W TO 31N64W AND
A LINE FROM 40N65W TO 31N76W WINDS TO 25 KT. SEAS TO 3.5
M...HIGHEST NEAR 36N65W.
.48 HOUR FORECAST LOW 42N66W 1009 MB. WITHIN 240 NM NW AND W OF
A LINE FROM 39N53W TO 33N66W WINDS TO 25 KT. SEAS TO 3.5 M.
.LOW E OF AREA NEAR 39N31W 1009 MB MOVING SE 10 KT. FROM 33N TO
47N BETWEEN 39W AND 35W WINDS LESS THAN 25 KT. SEAS TO 2.5
M...HIGHEST NEAR 37N35W.
.24 HOUR FORECAST LOW AND ASSOCIATED CONDITIONS MOVED E OF AREA.
.12 HOUR FORECAST N OF 64N BETWEEN 53W AND 56W WINDS TO 25 KT.
SEAS TO 2.5 M.
.24 HOUR FORECAST CONDITIONS DIMINISHED.
.48 HOUR FORECAST FROM 58N TO 60N BETWEEN 38W AND 45W AREA OF W
TO SW WINDS TO 25 KT. SEAS LESS THAN 2.5 M.
.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 45N TO 50N
BETWEEN 45W AND 55W.
.24 HOUR FORECAST DENSE FOG FROM 47N TO 52N BETWEEN 48W AND 53W.
.48 HOUR FORECAST DENSE FOG FROM 50N TO 53N BETWEEN 50W AND
56W...AND N OF 63N W OF 60W.
.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 1200 UTC WED JUL 29.
24 HOUR FORECAST VALID 1200 UTC THU JUL 30.
48 HOUR FORECAST VALID 1200 UTC FRI JUL 31.
.WARNINGS.
.NONE.
.SYNOPSIS AND FORECAST.
.ATLC TROUGH FROM 31N68W TO 27N80W. WITHIN 31N64W TO 31N70W TO
30N70W TO 29N69W TO 28N68W TO 31N64W SW WINDS 20 TO 25 KT. SEAS
2.5 TO 3 M.
.24 HOUR FORECAST TROUGH FROM 31N68W TO 27N80W. WITHIN 31N66W TO
31N78W TO 29N77W TO 29N72W TO 29N68W TO 31N66W SW WINDS 20 TO 25
KT. SEAS 2.5 TO 3 M..
.48 HOUR FORECAST WITHIN 31N69W TO 31N77W TO 29N77W TO 29N75W TO
30N72W TO 31N69W SW WINDS 20 TO 25 KT. SEAS LESS THAN 2.5 M.
.ATLC 12 HOUR FORECAST WITHIN 20.5N70.5W TO 20.5N71.5W TO
20.5N72W TO 20N72W TO 20N70.5W TO 20.5N70.5W E WINDS 20 TO 25
KT. SEAS LESS THAN 2.5 M.
.36 HOUR FORECAST WITHIN 21N70W TO 22N71W TO 22N72W TO 21N72W TO
20N72W TO 20N70W TO 21N70W E TO SE WINDS 20 TO 25 KT. SEAS LESS
THAN 2.5 M.
.48 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.
.ATLC 24 HOUR FORECAST WITHIN 14N57W TO 15N60W TO 14N61W TO
12N60W TO 12N57W TO 13N56W TO 14N57W...INCLUDING ATLC
EXPOSURES...
WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN NE TO E SWELL.
.30 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.
.CARIBBEAN WITHIN 13N73W TO 14N76W TO 13N78W TO 11N78W TO 11N76W
TO 12N73W TO 13N73W NE TO E WINDS 20 TO 25 KT. SEAS 2.5 TO 3 M.
.12 HOUR FORECAST WITHIN 13N69W TO 16N73W TO 14N79W TO 11N79W TO
11N76W TO 11N70W TO 13N69W NE TO E WINDS 20 TO 25 KT...EXCEPT 25
TO 30 KT S OF 13N BETWEEN 70W AND 74W...INCLUDING THE GULF OF
VENEZUELA. SEAS 2.5 TO 3 M OUTSIDE THE GULF OF VENEZUELA.
.24 HOUR FORECAST WITHIN 15N68W TO 18N73W TO 16N79W TO 10N79W TO
12N67W TO 15N68W...INCLUDING IN MONA PASSAGE AND THE GULF OF
VENEZUELA...E WINDS 20 TO 25 KT. SEAS 2.5 TO 3 M...HIGHEST FROM
11N TO 13N BETWEEN 75W AND 78W.
.48 HOUR FORECAST WITHIN 17N72W TO 18N79W TO 16N81W TO 11N81W TO
10N77W TO 13N68W TO 17N72W...INCLUDING IN MONA PASSAGE AND THE
GULF OF VENEZUELA...E WINDS 20 TO 25 KT EXCEPT 25 TO 30 KT S OF
14N BETWEEN 74W AND 76W.
.REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.
$$
.FORECASTER AGUIRRE. NATIONAL HURRICANE CENTER.