773
FZNT01 KWBC 200938
HSFAT1

HIGH SEAS FORECAST FOR METAREA IV
NWS OCEAN PREDICTION CENTER WASHINGTON DC
1030 UTC THU AUG 20 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0600 UTC AUG 20.
24 HOUR FORECAST VALID 0600 UTC AUG 21.
48 HOUR FORECAST VALID 0600 UTC AUG 22.

.WARNINGS.

...GALE WARNING...
.24 HOUR FORECAST NEW LOW 62N61W 993 MB. N OF 57N W OF 48W WINDS
25 TO 35 KT. SEAS TO 3.5 M. ELSEWHERE N OF 53N W OF 47W WINDS
LESS THAN 25 KT. SEAS TO 3.5 M.
.48 HOUR FORECAST COMPLEX LOW WITH MEAN CENTER 61N55W 1000 MB.
WITHIN 420 NM S QUADRANT AND W SEMICIRCLE WINDS 25 TO 35 KT. SEAS
TO 3.5 M.

...GALE WARNING...
.24 HOUR FORECAST NEW LOW 62N42W 1006 MB. WITHIN 300 NM NW AND N
OF A LINE FROM 53N43W TO 60N35W WINDS 25 TO 35 KT. SEAS TO 3.5
M.
.48 HOUR FORECAST LOW MOVED WELL NE OF AREA WITH NEW LOW TO FORM
NEAR 61N40W 1000 MB. FROM 49N TO 64N E OF 44W WINDS 20 TO 30 KT.
SEAS TO 3.5 M.

.SYNOPSIS AND FORECAST.

.INLAND LOW 51N61W 1005 MB MOVING NE 10 KT. FROM 41N TO 56N
BETWEEN 49W AND 60W S TO SE WINDS TO 25 KT. SEAS TO 2.5 M.
.24 HOUR FORECAST LOW DISSIPATED. ASSOCIATED CONDITIONS MERGED
WITH LOW 62N61W DESCRIBED IN WARNINGS SECTION ABOVE.

.LOW 45N44W 1015 MB MOVING NE 25 KT THEN TURNING MORE E AFTER 06
HOURS. FROM 41N TO 48N BETWEEN 38W AND 45W WINDS LESS THAN 25 KT.
SEAS TO 2.5 M.
.24 HOUR FORECAST LOW ABSORBED E OF AREA. FROM 45N TO 50N E OF
40W WINDS LESS THAN 25 KT. SEAS TO 2.5 M.
.48 HOUR FORECAST CONDITIONS MOVED E OF AREA.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 44N TO 48N E OF
50W...WITHIN THE GULF OF SAINT LAWRENCE E OF 61W...FROM 54N TO
58N W OF 46W...FROM 57N TO 62N BETWEEN 39W AND 49W...AND FROM 50N
TO 66N W OF 49W.
.24 HOUR FORECAST DENSE FOG WITHIN 60 NM OF 47N44W...FROM 45N TO
60N BETWEEN 44W AND 55W...AND FROM 50N TO 65N W OF 50W.
.48 HOUR FORECAST DENSE FOG FROM 59N TO 66N BETWEEN 46W AND
64W...FROM 50N TO 62N E OF 42W...AND WITHIN 240 NM NW OF A LINE
FROM 44N53W TO 50N40W.

.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 0600 UTC THU AUG 20.
24 HOUR FORECAST VALID 0600 UTC FRI AUG 21.
48 HOUR FORECAST VALID 0600 UTC SAT AUG 22.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.CARIBBEAN WITHIN 15N73W TO 14N77W TO 10N77W TO 11N73W TO 10N71W
TO 12N70W TO 15N73W...INCLUDING THE GULF OF VENEZUELA...NE TO E
WINDS 20 TO 30 KT. SEAS 2.5 TO 3.0 M.
.24 HOUR FORECAST WITHIN 18N71W TO 18N74W TO 14N78W TO 10N77W TO
10N72W TO 14N68W TO 18N71W...INCLUDING THE GULF OF
VENEZUELA...NE TO E WINDS 20 TO 30 KT. SEAS 2.5 TO 3.0 M.
.48 HOUR FORECAST WITHIN 15N70W TO 16N72W TO 15N77W TO 10N76W TO
10N72W TO 12N70W TO 15N70W...INCLUDING THE GULF OF
VENEZUELA...NE TO E WINDS 20 TO 25 KT. SEAS 2.5 TO 3.0 M.

.GULF OF AMERICA 18 HOUR FORECAST WITHIN 21N90W TO 22N91W TO
20N93W TO 19N92W TO 19N91W TO 21N90W NE WINDS 20 TO 25 KT. SEAS
LESS THAN 2.5 M.
.24 HOUR FORECAST LITTLE CHANGE.
.48 HOUR FORECAST LITTLE CHANGE.

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


.FORECASTER DELGADO. NATIONAL HURRICANE CENTER.

$$