123
FZNT01 KWBC 181011
HSFAT1

HIGH SEAS FORECAST FOR METAREA IV
NWS OCEAN PREDICTION CENTER WASHINGTON DC
1030 UTC MON AUG 18 2025

CCODE/2:31:04:11:00/AOE+AOW/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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 18.
24 HOUR FORECAST VALID 0600 UTC AUG 19.
48 HOUR FORECAST VALID 0600 UTC AUG 20.

.WARNINGS.

...GALE WARNING...
.LOW 42N46W 994 MB MOVING NE 15 KT. FROM 36N TO 46N E OF 51W
WINDS 25 TO 40 KT. SEAS 2.5 TO 5 M.
.24 HOUR FORECAST LOW 47N39W 995 MB. NE OF A LINE FROM 36N35W TO
45N46W WINDS 25 TO 40 KT. SEAS 2.5 TO 5.5 M...HIGHEST S OF LOW.
.48 HOUR FORECAST LOW E OF AREA 53N32W 997 MB. FROM 54N TO 58N E
OF 40W WINDS 20 TO 30 KT. SEAS TO 3 M.

...GALE WARNING...
.LOW 64N62W 1002 MB MOVING N 10 KT. WITHIN 240 NM E OF A LINE
FROM 59N50W TO 60N55W TO 67N66W WINDS 25 TO 35 KT. SEAS 2.5 TO 4
M. ALSO WITHIN 120 NM N QUADRANT WINDS 20 TO 30 KT. SEAS TO 2.5
M.
.24 HOUR FORECAST LOW N OF AREA. FROM 57N TO 61N BETWEEN 40W AND
54W WINDS 25 TO 40 KT. SEAS 3 TO 4.5 M. ELSEWHERE FROM 54N TO
59N E OF 40W...AND N OF 61N BETWEEN 57W AND GREENLAND WINDS TO
25 KT. SEAS TO 3.5 M.
.48 HOUR FORECAST NEW LOW 52N42W 1002 MB. FROM 55N TO 60N
BETWEEN 40W AND 51W WINDS 25 TO 35 KT. SEAS 2.5 TO 4 M.

...GALE WARNING...
.LOW 53N57W 1004 MB MOVING SE 15 KT. WITHIN 420 NM SW
QUADRANT...AND FROM 41N TO 45N BETWEEN 66W AND 73W WINDS TO 25
KT. SEAS LESS THAN 2.5 M.
.24 HOUR FORECAST LOW 47N54W 1005 MB. WITHIN 480 NM W SEMICIRCLE
WINDS 25 TO 35 KT. SEAS 2.5 TO 3.5 M.
.48 HOUR FORECAST LOW 48N45W 1002 MB. WITHIN 420 NM S AND 480 NM
W QUADRANTS...AND FROM 53N TO 60N BETWEEN 52W AND 58W WINDS 20
TO 30 KT. SEAS TO 3.5 M.

.SYNOPSIS AND FORECAST.

.LOW 34N69W 1009 MB MOVING E 05 KT. WINDS LESS THAN 25 KT. SEAS
LESS THAN 2.5 M.
.24 HOUR FORECAST LOW 35N66W 1013 MB. FROM 34N TO 40N W OF 66W
WINDS TO 25 KT. SEAS TO 2.5 M.
.48 HOUR FORECAST LOW 35N65W 1015 MB. WITHIN 240 NM N QUADRANT
WINDS LESS THAN 25 KT. SEAS TO 2.5 M.

.24 HOUR FORECAST NEW LOW 34N50W 1014 MB. FROM 31N TO 34N E OF
55W WINDS TO 25 KT. SEAS TO 2.5 M.
.48 HOUR FORECAST LOW 36N38W 1014 MB. E OF A LINE FROM 41N36W TO
31N45W WINDS TO 25 KT. SEAS TO 2.5 M.

.48 HOUR FORECAST EXCEPT WHERE DESCRIBED WITH HURRICANE ERIN IN
PART 2 BELOW...FROM 31N TO 35N BETWEEN 68W AND 79W E TO SE WINDS
20 TO 33 KT. SEAS 2.5 TO 4 M WITH SE TO S SWELL.

.DENSE FOG WITH VSBY OCCASIONALLY LESS THAN 1 NM WITHIN 300 NM E
OF A LINE FROM 51N43W TO 62N48W...N OF 63N W OF 60W...AND FROM
41N TO 47N E OF 50W.
.24 HOUR FORECAST DENSE FOG FROM 46N TO 60N E OF 55W...AND N OF
63N BETWEEN GREENLAND AND 58W.
.48 HOUR FORECAST DENSE FOG FROM 50N TO 58N E OF 55W...AND N OF
61N BETWEEN 52W AND 55W.

.FORECASTER KELLS. 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 18.
24 HOUR FORECAST VALID 0600 UTC TUE AUG 19.
48 HOUR FORECAST VALID 0600 UTC WED AUG 20.

.WARNINGS.

...HURRICANE WARNING...
.HURRICANE ERIN NEAR 22.8N 70.2W 945 MB AT 0900 UTC AUG 18
MOVING NW OR 305 DEG AT 11 KT. MAXIMUM SUSTAINED WINDS 115 KT
GUSTS 140 KT. TROPICAL STORM FORCE WINDS WITHIN 200 NM E
SEMICIRCLE...120 NM SW QUADRANT AND 170 NM NW QUADRANT.  SEAS 4
M OR GREATER WITHIN 240 NM NW AND SE QUADRANTS...300 NM NE
QUADRANT AND 150 NM SW QUADRANT WITH SEAS TO 14 M. ELSEWHERE
WITHIN 28N64W TO 30N70W TO 26N76W TO 20N73W TO 19N65W TO 23N63W
TO 28N64W...INCLUDING ATLANTIC EXPOSURES...WINDS 20 TO 33 KT.
SEAS 4.0 TO 5.5 M.
.24 HOUR FORECAST HURRICANE ERIN NEAR 25.0N 72.2W. MAXIMUM
SUSTAINED WINDS 115 KT GUSTS 140 KT. TROPICAL STORM FORCE WINDS
WITHIN 200 NM E SEMICIRCLE...140 NM SW QUADRANT AND 180 NM NW
QUADRANT. SEAS 4 M OR GREATER WITHIN 300 NM NE QUADRANT...270 NM
SE QUADRANT...225 NM SW QUADRANT AND 360 NM NW QUADRANT WITH
SEAS TO 15 M. ELSEWHERE WITHIN 29N67W TO 30N72W TO 24N76W TO
20N73W TO 20N69W TO 24N65W TO 29N67W...INCLUDING ATLANTIC
EXPOSURES...WINDS 20 TO 33 KT. SEAS 4.0 TO 5.5 M. REMAINDER OF
AREA WITHIN 31N63W TO 30N73W TO 31N81W TO 26N77W TO 21N66W TO
24N64W TO 31N63W...INCLUDING ATLANTIC EXPOSURES...WINDS 20 KT OR
LESS. SEAS 3.0 TO 4.5 M IN MIXED SWELL.
.48 HOUR FORECAST HURRICANE ERIN NEAR 28.6N 73.4W. MAXIMUM
SUSTAINED WINDS 105 KT GUSTS 130 KT. TROPICAL STORM FORCE WINDS
WITHIN 210 NM NE QUADRANT...220 NM SE QUADRANT...170 NM SW
QUADRANT...AND 180 NM NW QUADRANT. SEAS 4 M OR GREATER WITHIN 345
NM NE QUADRANT...300 NM SE QUADRANT...300 NM SW QUADRANT AND 360
NM NW QUADRANT WITH SEAS TO 15 M. ELSEWHERE WITHIN 29N66W TO
31N68W TO 31N78W TO 27N78W TO 24N73W TO 26N67W TO
29N66W...INCLUDING ATLANTIC EXPOSURES...WINDS 20 TO 33 KT. SEAS
5.5 TO 7.0 M. REMAINDER OF AREA WITHIN 31N63W TO 31N81W TO 28N81W
TO 23N75W TO 22N69W TO 25N65W TO 31N63W...INCLUDING ATLANTIC
EXPOSURES...WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN MIXED
SWELL.

FORECAST WINDS IN AND NEAR ACTIVE TROPICAL CYCLONES SHOULD BE
USED WITH CAUTION DUE TO UNCERTAINTY IN FORECAST TRACK...SIZE
AND INTENSITY.

.SYNOPSIS AND FORECAST.

.ATLC 06 HOUR FORECAST WITHIN 31N46W TO 31N50W TO 30.5N50W TO
30N49.5W TO 30.5N47.5W TO 31N46W WINDS 20 KT OR LESS. SEAS 2.5
TO 3.0 M IN NW TO N SWELL.
.24 HOUR FORECAST WITHIN 31N43W TO 31N47W TO 30.5N46.5W TO
30N45W TO 30.5N43.5W TO 31N43W WINDS 20 KT OR LESS. SEAS 2.5 TO
3.0 M IN NW TO N SWELL.
.36 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.