High Seas Forecast
Issued by NWS

Home |  Current Version |  Previous Version |  Text Only |  Print | Product List |  Glossary On
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28
127
FZNT01 KWBC 311625
HSFAT1

HIGH SEAS FORECAST FOR METAREA IV
NWS OCEAN PREDICTION CENTER WASHINGTON DC
1630 UTC SUN AUG 31 2025

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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 31.
24 HOUR FORECAST VALID 1200 UTC SEP 01.
48 HOUR FORECAST VALID 1200 UTC SEP 02.

.WARNINGS.

...GALE WARNING...
.LOW 52N44W 1004 MB MOVING E 25 KT. FROM 42N TO 53N E OF 51W
WINDS 25 TO 35 KT. SEAS 2.5 TO 6 MHIGHEST NEAR 48N44W.
.24 HOUR FORECAST LOW E OF AREA 52N28W 1001 MB. WITHIN 420 NM W
QUADRANT WINDS 20 TO 30 KT. SEAS TO 4 M. ELSEWHERE WITHIN 600 NM
SW QUADRANT WINDS LESS THAN 25 KT. SEAS TO 3.5 M.
.48 HOUR FORECAST LOW AND ASSOCIATED CONDITIONS E OF AREA.

...GALE WARNING...
.LOW S OF AREA NEAR 30N80W 1011 MB MOVING NE 15 KT. S OF 34N
BETWEEN 71W AND 76W WINDS 30 TO 45 KT. SEAS LESS THAN 2.5 M.
ELSEWHERE S OF 36N W OF 68W WINDS 20 TO 30 KT. SEAS LESS THAN
2.5 M.
.24 HOUR FORECAST COMPLEX LOW WITH FIRST CENTER 31N75W 1011 MB
AND SECOND NEW CENTER 36N64W 1014 MB. WITHIN 180 NM NW OF A
FRONT FROM 34N69W TO 38N60W WINDS 25 TO 35 KT. SEAS TO 3 M.
ELSEWHERE WITHIN 360 NM NW OF FRONT FROM 31N75W TO 34N69W TO
38N60W WINDS 20 TO 30 KT. SEAS TO 3 M.
.48 HOUR FORECAST COMPLEX LOW WITH FIRST CENTER 36N69W 1012 MB
AND SECOND CENTER 40N62W 1015 MB. WITHIN 240 NM OF FIRST CENTER
AND FROM 38N TO 43N BETWEEN 54W AND 64W WINDS 20 TO 30 KT. SEAS
2.5 TO 4.5 M.

...GALE WARNING...
.LOW 41N58W 1018 MB MOVING NE 30 KT. WITHIN 300 NM SE SEMICIRCLE
WINDS TO 25 KT. SEAS LESS THAN 2.5 M.
.24 HOUR FORECAST LOW NEAR 47N42W 1014 MB. FROM 40N TO 46N E OF
51W WINDS 20 TO 30 KT. SEAS TO 3 M.
.30 HOUR FORECAST LOW 49N38W 1010 MB. FROM 40N TO 46N E OF 49W
WINDS 25 TO 35 KT. SEAS TO 3.5 M.
.48 HOUR FORECAST COMPLEX LOW WELL E OF AREA. FROM 42N TO 50N E
OF 41W WINDS 20 TO 30 KT. SEAS TO 3.5 M.

GALE WARNING
.LOW 59N54W 1005 MB MOVING E 10 KT. FROM 55N TO 60N W OF 56W AND
FROM 60N TO 64N BETWEEN 47W AND 54W WINDS 20 TO 30 KT. SEAS TO
2.5 M.
.12 HOUR FORECAST LOW 59N49W 1005 MB. FROM 51N TO 62N BETWEEN
50W AND 57W AND WITHIN 150 NM NE QUADRANT WINDS 25 TO 35 KT.
SEAS TO 3 M.
.24 HOUR FORECAST LOW 59N46W 1006 MB. FROM 46N TO 60N BETWEEN
45W AND 55W WINDS 20 TO 30 KT. SEAS TO 3 M.
.48 HOUR FORECAST LOW 59N37W 998 MB. EXCEPT WHERE DESCRIBED
ABOVEFROM 48N TO 58N BETWEEN 35W AND 56W WINDS 20 TO 30 KT.
SEAS TO 3.5 M.

...GALE WARNING...
.24 HOUR FORECAST NEW LOW 63N64W 997 MB. N OF 55N W OF 57W WINDS
20 TO 30 KT. SEAS TO 2.5 M.
.48 HOUR FORECAST LOW 68N58W 992 MB. N OF 53N W OF 49W WINDS 25
TO 40 KT. SEAS TO 4 M.


.SYNOPSIS AND FORECAST.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 50N TO 57N
BETWEEN 47W AND 54W AND N OF 61N BETWEEN 51W AND 54W.
.24 HOUR FORECAST DENSE FOG FROM 43N TO 46N BETWEEN 44W AND 50W
AND WITHIN 90 NM NE OF A LINE FROM 67N64W TO 61N57W.
.48 HOUR FORECAST DENSE FOG FROM 63N TO 65N W OF 59W.

.FORECASTER JOSEPH. 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 SUN AUG 31.
24 HOUR FORECAST VALID 1200 UTC MON SEP  1.
48 HOUR FORECAST VALID 1200 UTC TUE SEP  2.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.ATLC WITHIN 31N72W TO 31N79W TO 30N80W TO 29N76W TO 29N73W TO
31N72W SW TO W WINDS 20 TO 25 KT. SEAS LESS THAN 2.5 M.
.24 HOUR FORECAST WITHIN 31N77W TO 31N81W TO 30N80W TO 30N79W TO
30N77W TO 31N77W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN NE TO
E SWELL.
.36 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS
LESS THAN 2.5 M.

.CARIBBEAN WITHIN 13N73W TO 13N75W TO 11N78W TO 10N77W TO 11N75W
TO 11N73W TO 13N73W NE TO E WINDS 20 TO 25 KT. SEAS LESS THAN
2.5 M.
.24 HOUR FORECAST WITHIN 13N70W TO 14N75W TO 12N82W TO 10N81W TO
10N78W TO 12N70W TO 13N70W...INCLUDING THE GULF OF VENEZUELA...
NE TO E WINDS 20 TO 25 KT. SEAS LESS THAN 2.5 M.
.48 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 CHRISTENSEN. NATIONAL HURRICANE CENTER.