HSFAT1
HIGH SEAS FORECAST FOR METAREA IV
NWS OCEAN PREDICTION CENTER WASHINGTON DC
0430 UTC THU JUL 30 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0000 UTC JUL 30.
24 HOUR FORECAST VALID 0000 UTC JUL 31.
48 HOUR FORECAST VALID 0000 UTC AUG 01.
.WARNINGS.
...GALE WARNING...
.COMPLEX LOW WITH MAIN CENTER NEAR 47N43W 1009 MB MOVING E 10 KT.
WITHIN 90 NM NE OF A LINE FROM 46N41W TO 48N43W TO 51N49W WINDS
25 TO 35 KT. SEAS TO 3 M. ELSEWHERE FROM 40N TO 53N BETWEEN 39W
AND 54W WINDS TO 25 KT. SEAS TO 2.5 M.
.24 HOUR FORECASTS COMPLEX LOW WITH MAIN CENTER NEAR 48N37W 1009
MB. FROM 44N TO 52N E OF 44W WINDS TO 25 KT. SEAS TO 3
M...HIGHEST NEAR 51N35W.
.48 HOUR FORECAST LOW AND ASSOCIATED CONDITIONS MOVED E OF AREA.
.SYNOPSIS AND FORECAST.
.COMPLEX LOW WITH MEAN CENTER NEAR 41N71W 1002 MB MOVING NE 10
KT. S OF 40N BETWEEN A LINE FROM 40N55W TO 31N63W AND A LINE FROM
40N67W TO 31N77W WINDS 20 TO 30 KT. SEAS TO 3.5 M...HIGHEST NEAR
37N60W.
.24 HOUR FORECAST COMPLEX LOW WITH MAIN CENTER NEAR 42N68W 1006
MB. WITHIN 360 NM E OF A LINE FROM 41N61W TO 31N77W WINDS 20 TO
30 KT. SEAS 2.5 TO 4 M.
.48 HOUR FORECAST COMPLEX LOW WITH MAIN CENTER NEAR 46N60W 1009
MB. FROM 34N TO 43N BETWEEN 48W AND 67W WINDS 20 TO 30 KT. SEAS
TO 3.5 M.
.48 HOUR FORECAST NEW LOW 34N72W 1015 MB. S OF 34N BETWEEN 68W
AND 74W WINDS TO 25 KT. SEAS TO 2.5 M.
.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 44N TO 53N
BETWEEN 42W AND 53W...AND N OF 61N BETWEEN 53W AND 62W.
.24 HOUR FORECAST DENSE FOG FROM 42N TO 45N BETWEEN 57W AND
68W...WITHIN 150 NM E OF A LINE FROM 47N49W TO 51N57W...FROM 54N
TO 64N W OF 55W...AND N OF 65N W OF 57W.
.48 HOUR FORECAST DENSE FOG N OF 49N W OF A LINE FROM 49N49W TO
61N62W TO 67N56W...AND FROM 43N TO 47N BETWEEN 47W AND 59W.
.FORECASTER POCHE. OCEAN PREDICTION CENTER.
NWS 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 JUL 30.
24 HOUR FORECAST VALID 0000 UTC FRI JUL 31.
48 HOUR FORECAST VALID 0000 UTC SAT AUG 1.
.WARNINGS.
.NONE.
.SYNOPSIS AND FORECAST.
.ATLC WITHIN 31N64.5W TO 31N70W TO 30.5N69W TO 30.5N67.5W TO
30.5N66W TO 31N64.5W S TO SW WINDS 20 TO 25 KT. SEAS 2.5 TO
3.0 M.
.24 HOUR FORECAST WITHIN 31N67W TO 31N76W TO 30N76W TO 29N74W TO
30N70W TO 31N67W SW WINDS 20 TO 25 KT. SEAS 2.5 TO 3.0 M.
.48 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS
LESS THAN 2.5 M.
.ATLC 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.
.06 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS
LESS THAN 2.5 M.
.18 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.
.24 HOUR FORECAST WITHIN 21N70W TO 21N71W TO 21N72W TO 20N72W TO
20N70W TO 21N70W E TO SE WINDS 20 TO 25 KT. SEAS 2.5 TO 3.0 M.
.36 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS
LESS THAN 2.5 M.
.42 HOUR FORECAST WITHIN 20.5N70.5W TO 20.5N71W 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.
.48 HOUR FORECAST WITHIN 20N71W TO 21N72W TO 21N73W TO 20N73W TO
20N72W TO 20N71W E WINDS 20 TO 30 KT. SEAS 2.5 M.
.ATLC WITHIN 16N47W TO 17N51W TO 15N55W TO 10N56W TO 11N49W TO
12N46W TO 16N47W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN NE TO
E SWELL.
.24 HOUR FORECAST WITHIN 15N54W TO 16N60W TO 13N61W TO 12N59W TO
13N55W TO 15N54W...INCLUDING IN ATLANTIC EXPOSURES AND
PASSAGES...WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M
IN NE TO E SWELL.
.36 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS
LESS THAN 2.5 M.
.CARIBBEAN WITHIN 13N70W TO 15N73W TO 15N75W TO 12N77W TO 11N72W
TO 11N70W TO 13N70W...INCLUDING THE GULF OF VENEZUELA...NE TO E
WINDS 20 TO 30 KT. SEAS 2.5 TO 3.0 M.
.24 HOUR FORECAST WITHIN 18N72W TO 17N78W TO 11N80W TO 10N65W TO
18N72W...INCLUDING IN MONA PASSAGE AND THE GULF OF VENEZUELA...
NE TO E WINDS 20 TO 30 KT. SEAS 2.5 TO 3.5 M.
.48 HOUR FORECAST WITHIN 17N73W TO 17N76W TO 16N82W TO 11N82W TO
09N79W TO 13N69W TO 17N73W...INCLUDING THE GULF OF VENEZUELA...
NE TO E WINDS 20 TO 30 KT. SEAS 2.5 TO 3.5 M.
.REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.
.FORECASTER ERA. NATIONAL HURRICANE CENTER.
$$