523
FZNT01 KWBC 170958
HSFAT1

HIGH SEAS FORECAST FOR METAREA IV
NWS OCEAN PREDICTION CENTER WASHINGTON DC
1030 UTC MON AUG 17 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 17.
24 HOUR FORECAST VALID 0600 UTC AUG 18.
48 HOUR FORECAST VALID 0600 UTC AUG 19.

.WARNINGS.

...GALE WARNING...
.COMPLEX LOW WITH MAIN CENTER 38N47W 1007 MB MOVING NE 15 KT AND
SECOND CENTER 34N52W 1009 MB MOVING NE 30 KT. WITHIN 180 OF MAIN
CENTER WINDS 25 TO 35 KT. SEAS TO 3 M. ELSEWHERE WITHIN 300 NM N
SEMICIRCLE...AND 420 NM SE AND 540 NM SW QUADRANTS WINDS TO 25
KT. SEAS TO 2.5 M.
.24 HOUR FORECAST LOW 41N45W 1012 MB. WITHIN 300 NM E AND 180 NM
W SEMICIRCLES WINDS 20 TO 30 KT. SEAS 2.5 TO 4 M.
.48 HOUR FORECAST LOW 43N44W 1015 MB. WITHIN 240 NM OF LOW
CENTER WINDS TO 25 KT. SEAS TO 2.5 M.

...GALE WARNING...
.24 HOUR FORECAST N OF 59N BETWEEN 51W AND 60W WINDS 20 TO 30
KT. SEAS TO 2.5 M.
.30 HOUR FORECAST N OF 61N BETWEEN THE W COAST OF GREENLAND AND
56W WINDS 25 TO 40 KT. SEAS TO 3 M.
.48 HOUR FORECAST WITHIN 120 NM SW OF THE W COAST OF GREENLAND
FROM 60N TO 66N WINDS TO 25 KT. SEAS TO 2.5 M.

.SYNOPSIS AND FORECAST.

.LOW E OF AREA NEAR 57N31W 994 MB MOVING NE 15 KT. WITHIN 300 NM
SW QUADRANT...AND BETWEEN 300 NM AND 480 NM NW QUADRANT WINDS 20
TO 30 KT. SEAS TO 2.5 M.
.24 HOUR FORECAST LOW E OF AREA. FROM 53N TO 60N E OF 40W WINDS
20 TO 30 KT. SEAS TO 3 M.
.48 HOUR FORECAST CONDITIONS MOVED E OF AREA.

.24 HOUR FORECAST LOW 40N69W 1006 MB. WITHIN 360 NM S SEMICIRCLE
WINDS 20 TO 30 KT. SEAS TO 2.5 M.
.48 HOUR FORECAST LOW 42N65W 1009 MB. WITHIN 420 NM E SEMICIRCLE
WINDS 20 TO 30 KT. SEAS TO 3.5 M.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 61N TO 65N
BETWEEN THE E COAST OF GREENLAND AND 38W.
.24 HOUR FORECAST DENSE FOG FROM 58N TO 66N BETWEEN 55W AND 62W.
.48 HOUR FORECAST DENSE FOG FROM 40N TO 46N BETWEEN 62W AND
68W...AND FROM 54N TO 65N BETWEEN 44W AND 58W.

.FORECASTER HOLLEY. 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 0600 UTC MON AUG 17.
24 HOUR FORECAST VALID 0600 UTC TUE AUG 18.
48 HOUR FORECAST VALID 0600 UTC WED AUG 19.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.ATLC WITHIN 31N50W TO 31N56W TO 29N57W TO 27N56W TO 28N54W TO
30N53W TO 31N50W SW WINDS 20 TO 25 KT. SEAS 2.5 TO 3.0 M.
.24 HOUR FORECAST WITHIN 31N48W TO 31N52W TO 30N52W TO 30N50W TO
30N49W TO 31N48W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN W
SWELL.
.30 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS
LESS THAN 2.5 M.

.ATLC AND CARIBBEAN WITHIN 20N73W TO 21N73W TO 20N76W TO 19N76W
TO 18N75W TO 19N73W TO 20N73W NE TO E WINDS 20 TO 25 KT. SEAS
LESS THAN 2.5 M.
.24 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS
LESS THAN 2.5 M.

.CARIBBEAN WITHIN 18N71W TO 17N80W TO 14N80W TO 11N75W TO 12N70W
TO 18N71W...INCLUDING THE GULF OF VENEZUELA...E WINDS 20 TO 25
KT. SEAS 2.5 TO 3.0 M.
.24 HOUR FORECAST WITHIN 14N78W TO 14N80W TO 13N81W TO 12N81W TO
11N80W TO 12N79W TO 14N78W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0
M IN NE TO E SWELL.
.30 HOUR FORECAST CONDITIONS IMPROVE. 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 RAMOS. NATIONAL HURRICANE CENTER.