HSFAT1
HIGH SEAS FORECAST FOR METAREA IV
NWS OCEAN PREDICTION CENTER WASHINGTON DC
1630 UTC SAT AUG 15 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 AUG 15.
24 HOUR FORECAST VALID 1200 UTC AUG 16.
48 HOUR FORECAST VALID 1200 UTC AUG 17.
.WARNINGS.
.NONE.
.SYNOPSIS AND FORECAST.
.LOW 49N53W 1004 MB MOVING NE 25 KT. FRONT EXTENDS FROM 50N49W
TO 47N46W TO 38N56W. WITHIN 300 NM SW QUADRANT AND WITHIN 300 NM
E AND SE OF FRONT WINDS TO 25 KT. SEAS TO 2.5 M.
.24 HOUR FORECAST LOW 52N39W 1002 MB. WITHIN 480 NM E AND SE
QUADRANTS AND WITHIN 180 NM SE OF A FRONT FROM 43N40W TO 35N48W
WINDS 20 TO 30 KT. SEAS TO 3 M.
.48 HOUR FORECAST LOW E OF AREA NEAR 59N29W 994 MB. W OF 35W
WITHIN 600 NM SW QUADRANT AND FROM 59N TO 64N BETWEEN 39W AND
43W WINDS 20 TO 30 KT. SEAS TO 2.5 M.
.LOW 59N37W 1006 MB MOVING NE 05 KT. WITHIN 120 NM S AND
SE...180 NM NW AND 240 NM NE QUADRANTS WINDS TO 25 KT. SEAS TO
2.5 M.
.24 HOUR FORECAST LOW 61N36W 1007 MB. CONDITIONS DIMINISHED.
.48 HOUR FORECAST LOW AND CONDITIONS MERGED WITH LOW E OF AREA
59N29W BELOW.
.LOW 63N61W 1002 MB MOVING NE 10 KT THEN TURNING NW AFTER 12
HOURS. FROM 60N TO 64N W OF 56W WINDS TO 25 KT. SEAS TO 2.5 M.
.24 HOUR FORECAST LOW 65N62W 1006 MB. CONDITIONS DIMINISHED.
.48 HOUR FORECAST LOW DISSIPATED INLAND.
.24 HOUR FORECAST NEW LOW 34N60W 1011 MB. FROM 31N TO 36N
BETWEEN 60W AND 67W WINDS 20 TO 30 KT. SEAS TO 2.5 M.
.48 HOUR FORECAST COMPLEX LOW WITH MEAN CENTER 37N49W 1010 MB.
FROM 31N TO 42N BETWEEN 42W AND 55W WINDS 20 TO 30 KT. SEAS TO 3
M.
.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 44N TO 52N
BETWEEN 38W AND 52W...FROM 43N TO 47N E OF 38W...FROM 57N TO 60N
E OF 45W...AND WITHIN 180 NM SW OF A LINE FROM 62N51W TO 67N57W.
.24 HOUR FORECAST DENSE FOG FROM 44N TO 53N E OF 40W...AND N OF
63N W OF 59W.
.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 1200 UTC SAT AUG 15.
24 HOUR FORECAST VALID 1200 UTC SUN AUG 16.
48 HOUR FORECAST VALID 1200 UTC MON AUG 17.
.WARNINGS.
...CARIBBEAN GALE WARNING...
.CARIBBEAN FROM 11N TO 13N BETWEEN 73W AND 76W NE TO E WINDS 25
TO
35 KT. SEAS 3.0 TO 4.5 M. ELSEWHERE FROM 11N TO 17.5N BETWEEN
68W
AND 83W...INCLUDING THE GULF OF VENEZUELA...NE TO E WINDS 20 TO
30
KT. SEAS 3.0 TO 4.5 M FROM 11N TO 14N BETWEEN 74W AND 79W...AND
2.5
TO 3.0 M ELSEWHERE. S OF 11N E OF 81W WINDS 20 KT OR LESS. SEAS
2.5
TO 4.0 M IN NE SWELL.
.12 HOUR FORECAST FROM 11N TO 13N BETWEEN 72W AND 76W NE TO E
WINDS
25 TO 35 KT. SEAS 3.0 TO 4.0 M. ELSEWHERE FROM 11N TO 18N
BETWEEN
64W AND 82W...INCLUDING THE GULF OF VENEZUELA...NE TO E WINDS 20
TO
25 KT. SEAS 2.5 TO 3.5 M IN E SWELL. S OF 11N WINDS 20 KT OR
LESS.
SEAS 2.5 TO 3.0 M IN NE SWELL.
.24 HOUR FORECAST CONDITIONS MERGED WITH TRPCL WAVE.
.SYNOPSIS AND FORECAST.
.ATLC 36 HOUR FORECAST COLD FRONT FROM 31N58W TO 31N70W. S OF
FRONT
TO 29.5N BETWEEN 57W AND 62W SW TO W WINDS 20 TO 25 KT. SEAS
LESS
THAN 2.5 M.
.48 HOUR FORECAST COLD FRONT FROM 31N55W TO 30N68W. N OF 29N E
OF
FRONT TO A LINE FROM 31N50W TO 29N55W SW WINDS 20 TO 25 KT. SEAS
LESS THAN 2.5 M.
.ATLC AND CARIBBEAN 12 HOUR FORECAST FROM 18.5N TO 22N BETWEEN
70W
AND 77W...INCLUDING THE WINDWARD PASSAGE...NE TO E WINDS 20 TO
30
KT. SEAS 2.5 TO 3.0 M.
.24 HOUR FORECAST FROM 19N TO 21N BETWEEN 72W AND
77W...INCLUDING
THE WINDWARD PASSAGE...NE TO E WINDS 20 TO 25 KT. SEAS 2.5 TO
3.0 M.
.36 HOUR FORECAST FROM 19N TO 21N BETWEEN 70W AND
76W...INCLUDING
THE WINDWARD PASSAGE...NE TO E WINDS 20 TO 25 KT. SEAS TO 2.5 M.
.48 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.
.ATLC AND CARIBBEAN TRPCL WAVE ALONG 64W. FROM 11N TO 20N E OF
WAVE
AXIS TO 55W...INCLUDING IN ATLANTIC EXPOSURES AND PASSAGES...E
TO SE
WINDS 20 TO 30 KT. SEAS 2.5 TO 3.5 M. N OF 13N W OF WAVE AXIS TO
68W
NE TO E WINDS 20 TO 30 KT. SEAS 2.5 TO 3.0 M.
.24 HOUR FORECAST TRPCL WAVE ALONG 72W. FROM 11N TO 17.5N E OF
WAVE
AXIS TO 64W E TO SE WINDS 20 TO 30 KT. SEAS 2.5 TO 3.5 M. FROM
11N
TO 17.5N W OF WAVE AXIS TO 82W NE TO E WINDS 20 TO 30 KT. SEAS
2.5
TO 3.5 M. S OF 11N WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN NE
SWELL.
.48 HOUR FORECAST TRPCL WAVE ALONG 78W. FROM 11N TO 17.5N
BETWEEN
68W AND 78W...INCLUDING THE GULF OF VENEZUELA...E WINDS 20 TO 30
KT.
SEAS 2.5 TO 3.0 M.
.CARIBBEAN 12 HOUR FORECAST S OF 17N W OF 86W...INCLUDING THE
GULF
OF HONDURAS...NE TO E WINDS 20 TO 25 KT. SEAS LESS THAN 2.5 M.
.24 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.
.GULF OF AMERICA 12 HOUR FORECAST FROM 19N TO 22N BETWEEN 89W
AND
92W N TO NE WINDS 20 TO 25 KT. SEAS LESS THAN 2.5 M.
.24 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.
.36 HOUR FORECAST FROM 19N TO 21N BETWEEN 90W AND 92W N WINDS 20
TO
25 KT. SEAS LESS THAN 2.5 M.
.24 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.
.REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.
$$
.FORECASTER GR. NATIONAL HURRICANE CENTER.