869
FZNT01 KWBC 210400
HSFAT1

HIGH SEAS FORECAST FOR METAREA IV
NWS OCEAN PREDICTION CENTER WASHINGTON DC
0430 UTC FRI AUG 21 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 AUG 21.
24 HOUR FORECAST VALID 0000 UTC AUG 22.
48 HOUR FORECAST VALID 0000 UTC AUG 23.

.WARNINGS.

...GALE WARNING...
.LOW 61N60W 995 MB MOVING W 05 KT. FROM 49N TO 64N BETWEEN 44W
AND 57W AND FROM 61N TO 67N W OF 59W WINDS 20 TO 30 KT. SEAS TO
3.5 M.
.06 HOUR FORECAST LOW 62N61W 993 MB. BETWEEN 240 NM AND 420 NM E
QUADRANT AND FROM 61N TO 67N W OF 55W WINDS 25 TO 35 KT. SEAS TO
4 M.
.24 HOUR FORECAST LOW 61N63W 993 MB. WITHIN 480 NM N AND 240 NM W
AND SW QUADRANTS WINDS 20 TO 30 KT. SEAS TO 4 M. ELSEWHERE N OF
60N W OF 54W WINDS LESS THAN 25 KT. SEAS TO 3 M.
.48 HOUR FORECAST LOW 57N52W 1010 MB. N OF 54N W OF 46W WINDS TO
25 KT. SEAS TO 3 M.

...GALE WARNING...
.FROM 59N TO 62N E OF 44W WINDS 20 TO 30 KT. SEAS TO 3 M.
.06 HOUR FORECAST LOW 64N40W 1006 MB. FROM 59N TO 63N E OF 43W
WINDS 25 TO 35 KT. SEAS TO 3.5 M.
.24 HOUR FORECAST LOW 64N36W 1003 MB. FROM 48N TO 65N E OF 48W
WINDS TO 25 KT. SEAS TO 3.5 M.
.48 HOUR FORECAST LOW 65N29W 990 MB. FROM 60N TO 65N E OF 38W
WINDS 20 TO 30 KT. SEAS TO 3.5 M. ELSEWHERE N OF 56N E OF 42W
WINDS LESS THAN 25 KT. SEAS TO 3 M.

.SYNOPSIS AND FORECAST.

.FROM 43N TO 51N E OF 42W WINDS LESS THAN 25 KT. SEAS TO 2.5 M.
.24 HOUR FORECAST LOW AND CONDITIONS E OF AREA.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 48N TO 66N W OF
46W...NOT INCLUDING THE GULF OF SAINT LAWRENCE...WITHIN 60 NM OF
62N37W...AND FROM 44N TO 45N BETWEEN 65W AND 67W.
.24 HOUR FORECAST DENSE FOG FROM 45N TO 51N BETWEEN 43W AND
54W...FROM 51N TO 63N BETWEEN 35W AND 47W...AND WITHIN 180 NM NE
OF A LINE FROM 59N46W TO 62N56W TO 66N59W.
.48 HOUR FORECAST DENSE FOG WITHIN 120 NM NW OF A LINE FROM
43N51W TO 47N41W.

.FORECASTER JOSEPH. 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 FRI AUG 21.
24 HOUR FORECAST VALID 0000 UTC SAT AUG 22.
48 HOUR FORECAST VALID 0000 UTC SUN AUG 23.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.CARIBBEAN WITHIN 13N69W TO 15N71W TO 15N74W TO 13N76W TO 11N75W
TO 11N70W TO 13N69W NE TO E WINDS 20 TO 25 KT...EXCEPT S OF 13N
25 TO 30 KT INCLUDING IN THE GULF OF VENEZUELA. SEAS 2.5 TO 3 M
OUTSIDE THE GULF OF VENEZUELA.
.24 HOUR FORECAST WITHIN 14N69W TO 18N72W TO 17N75W TO 14N77W TO
11N75W TO 12N69W TO 14N69W...INCLUDING IN THE GULF OF
VENEZUELA...NE TO E WINDS 20 TO 25 KT. SEAS 2.5 TO 3 M OUTSIDE
THE GULF OF VENEZUELA.
.48 HOUR FORECAST WITHIN 13N69W TO 14N71W TO 13N74W TO 12N75W TO
12N72W TO 11N70W TO 13N69W...INCLUDING IN THE GULF OF
VENEZUELA...NE TO E WINDS 20 TO 25 KT. SEAS TO 2.5 M OUTSIDE THE
GULF OF VENEZUELA.

.GULF OF AMERICA WITHIN 21N90W TO 22N90W TO 21N91W TO 20N92W TO
19N92W TO 19N91W TO 21N90W...INCLUDING WITHIN 60 NM OF COAST OF
CAMPECHE...N TO NE WINDS 20 TO 25 KT. SEAS LESS THAN 2.5 M.
.12 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.
.24 HOUR FORECAST WITHIN 21N91W TO 20N92W TO 20N91W TO
21N91W...INCLUDING WITHIN 60 NM OF COAST OF CAMPECHE...N TO NE
WINDS 20 TO 25 KT. SEAS LESS THAN 2.5 M.
.36 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 AGUIRRE. NATIONAL HURRICANE CENTER.

$$