213
FZPN01 KWBC 110958
HSFEP1

HIGH SEAS FORECAST
NWS OCEAN PREDICTION CENTER WASHINGTON DC
1030 UTC MON AUG 11 2025

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 ANY TROPICAL CYCLONE INFORMATION BEYOND 48 HOURS REFERENCE
THE ASSOCIATED NWS TROPICAL CYCLONE FORECAST/ADVISORY (TCM).

SECURITE

PACIFIC N OF 30N AND S OF 67N E OF A LINE FROM BERING STRAIT
TO 50N 160E

ALL FORECASTS VALID OVER ICE FREE FORECAST WATERS

SYNOPSIS VALID 0600 UTC AUG 11.
24 HOUR FORECAST VALID 0600 UTC AUG 12.
48 HOUR FORECAST VALID 0600 UTC AUG 13.

.WARNINGS.

...HURRICANE WARNING...
.HURRICANE HENRIETTE NEAR 27.7N 155.1W 990 MB AT 0900 UTC AUG 11
MOVING NW OR 315 DEG AT 15 KT. MAXIMUM SUSTAINED WINDS 70 KT
GUSTS 85 KT. TROPICAL STORM FORCE WINDS WITHIN 50 NM NW AND SE
QUADRANTS...60 NM NE QUADRANT AND 30 NM SW QUADRANT.  SEAS 4 M OR
GREATER WITHIN 60 NM W SEMICIRCLE...120 NM NE QUADRANT AND 80 NM
SE QUADRANT WITH SEAS TO 7 M S OF AREA. ELSEWHERE WITHIN 300 NM N
QUADRANT WINDS TO 25 KT. SEAS TO 2.5 M.
.24 HOUR FORECAST HURRICANE HENRIETTE NEAR 31.4N 159.7W. MAXIMUM
SUSTAINED WINDS 80 KT GUSTS 100 KT. TROPICAL STORM FORCE WINDS
WITHIN 60 NM NW AND SE QUADRANTS...70 NM NE QUADRANT AND 40 NM SW
QUADRANT. SEAS 4 M OR GREATER WITHIN 240 NM NE...180 NM SE...90
NM SW...AND 60 NM NW QUADRANTS WITH SEAS TO 8 M. ELSEWHERE S OF
34N BETWEEN 154W AND 161W WINDS 20 TO 33 KT. SEAS TO 4 M.
.48 HOUR FORECAST TROPICAL STORM HENRIETTE NEAR 35.5N 165.1W.
MAXIMUM SUSTAINED WINDS 55 KT GUSTS 65 KT. TROPICAL STORM FORCE
WINDS WITHIN 50 NM NW AND SE QUADRANTS...60 NM NE QUADRANT AND 30
NM SW QUADRANT. SEAS 4 M OR GREATER WITHIN 240 NM NE...180 NM
SE...120 NM SW...AND 90 NM NW QUADRANTS WITH SEAS TO 7.5 M..
ELSEWHERE S OF 40N BETWEEN 154W AND 161W WINDS 20 TO 33 KT. SEAS
TO 4 M.

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

...GALE WARNING...
.FROM 44N TO 51N BETWEEN 125W AND 130W AREA OF N TO NW WINDS 25
TO 40 KT. SEAS 2.5 TO 4.5 M. ELSEWHERE WITHIN 180 NM EITHER SIDE
OF A LINE FROM 34N140W TO 43N130W TO 50N125W AREA OF N TO NE
WINDS 20 TO 30 KT. SEAS 2.5 TO 4 M.
.24 HOUR FORECAST FROM 43N TO 51N BETWEEN 125W AND 131W AREA OF N
TO NW WINDS 25 TO 40 KT. SEAS 2.5 TO 4.5 M. ELSEWHERE WITHIN 240
NM EITHER SIDE OF A LINE FROM 35N145W TO 44N130W TO 53N128W WINDS
20 TO 30 KT. SEAS 2.5 TO 4 M.
.48 HOUR FORECAST WITHIN 240 NM EITHER SIDE OF A LINE FROM
33N150W TO 43N130W TO 51N126W AREA OF N TO NE WINDS 20 TO 30 KT.
SEAS 2.5 TO 3.5 M.

...GALE WARNING...
.LOW NW OF AREA 53N175E 990 MB MOVING NE 10 KT. N OF 47N BETWEEN
168W AND 178E AND WITHIN 180 NM SE SEMICIRCLE WINDS 25 TO 35 KT.
SEAS 2.5 TO 3.5 M.
.24 HOUR FORECAST LOW 61N177W 996 MB. WITHIN THE BERING SEA W OF
162W WINDS 20 TO 30 KT. SEAS 2.5 TO 3.5 M...HIGHEST NEAR
59N160W.
.48 HOUR FORECAST LOW 63N168W 1001 MB. WITHIN 240 NM E AND SW
SEMICIRCLES WINDS 20 TO 30 KT. SEAS TO 2.5 M.

...GALE WARNING...
.LOW 47N164E 1002 MB MOVING NE 35 KT. WITHIN 300 NM SE SEMICIRCLE
WINDS 20 TO 30 KT. SEAS 2.5 TO 3.5 M.
.18 HOUR FORECAST LOW 50N180W 1004 MB. WITHIN 300 NM NE QUADRANT
AND 360 NM SE SEMICIRCLE WINDS 25 TO 35 KT. SEAS 2.5 TO 3.5 M.
ELSEWHERE FROM 39N TO 47N W OF 180W WINDS TO 25 KT. SEAS TO 3 M.
.24 HOUR FORECAST LOW 51N176W 1005 MB. WITHIN 300 NM NE QUADRANT
AND 360 NM SE SEMICIRCLE WINDS 25 TO 35 KT. SEAS 2.5 TO 3.5 M.
ELSEWHERE FROM 39N TO 47N W OF 180W WINDS TO 25 KT. SEAS TO 3 M.
.48 HOUR FORECAST LOW 55N161W 1010 MB. WITHIN 480 NM SE
SEMICIRCLE WINDS 20 TO 30 KT. SEAS TO 2.5 M.

...GALE WARNING...
.42 HOUR FORECAST NEW COMPLEX LOW WITH MEAN CENTER 47N164E 1004
MB. WITHIN 420 NM SE AND 480 NM SW QUADRANTS WINDS 25 TO 35 KT.
SEAS 2.5 TO 4.5 M.
.48 HOUR FORECAST COMPLEX LOW WITH MAIN CENTER 48N173E 1003 MB.
WITHIN 240 NM SE AND 720 NM SW QUADRANTS WINDS 25 TO 35 KT. SEAS
2.5 TO 4 M.

.SYNOPSIS AND FORECAST.

.LOW 53N154W 1015 MB MOVING NE 30 KT. WITHIN 540 NM E AND 300 NM
SE QUADRANTS WINDS 20 TO 30 KT. SEAS 2.5 TO 3.5 M. ELSEWHERE FROM
50N TO 58N E OF 146W WINDS TO 25 KT. SEAS TO 3.5 M.
.24 HOUR FORECAST LOW 59N134W 1016 MB. WITHIN 540 NM SW QUADRANT
WINDS LESS THAN 25 KT. SEAS TO 2.5 M.
.48 HOUR FORECAST LOW DISSIPATED INLAND AND ASSOCIATED CONDITIONS
DIMINISHED.

.LOW 40N163W 1011 MB MOVING N 15 KT. WITHIN 360 NM E SEMICIRCLE
WINDS 20 TO 30 KT. SEAS 2.5 TO 3.5 M. ELSEWHERE S OF 44N BETWEEN
152W AND 168W WINDS TO 25 KT. SEAS TO 3 M.
.24 HOUR FORECAST LOW 47N163W 1020 MB. WITHIN 300 NM E AND SE
QUADRANTS...AND S OF 45N BETWEEN 160W AND 170W WINDS TO 25 KT.
SEAS TO 3 M.
.48 HOUR FORECAST LOW DISSIPATED AND ASSOCIATED CONDITIONS
DIMINISHED.

.KLYUCHEVSKOY VOLCANO 56.03N 160.38E CONTINUES TO ERUPT. VOLCANIC
ASH MAY BE REACHING THE SURFACE FROM 54N TO 58N BETWEEN 173E TO
160E. MARINERS SHOULD EXERCISE CAUTION. IF MARINERS ENCOUNTER
VOLCANIC ASH OR FLOATING VOLCANIC DEBRIS YOU ARE ENCOURAGED TO
REPORT THE OBSERVATION TO THE OCEAN PREDICTION CENTER BY CALLING
301-683-1520.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM WITHIN 180 NM EITHER
SIDE OF A LINE FROM 45N160W TO 57N137W...N AND W OF A LINE FROM
42N160E TO 40N170E TO 48N175W TO 55N175W TO 60N180W...AND S OF
37N BETWEEN 120W AND 125W.
.24 HOUR FORECAST DENSE FOG WITHIN 180 NM EITHER SIDE OF A LINE
FROM 45N162W TO 55N134W...FROM 41N TO 52N W OF 173W...AND N OF
52N BETWEEN 173W AND 178W.
.48 HOUR FORECAST DENSE FOG WITHIN AN AREA BOUNDED BY A LINE FROM
41N160E TO 43N150W TO 49N133W TO 55N150W TO 48N180W TO 54N168E TO
50N160E TO 41N160E.

.FORECASTER ANDERSON. OCEAN PREDICTION CENTER.

NWS NATIONAL HURRICANE CENTER MIAMI FL

E PACIFIC FROM THE EQUATOR TO 30N E OF 140W AND 03.4S TO THE
EQUATOR E OF 120W

SYNOPSIS VALID 0600 UTC MON AUG 11.
24 HOUR FORECAST VALID 0600 UTC TUE AUG 12.
48 HOUR FORECAST VALID 0600 UTC WED AUG 13.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.TROPICAL DEPRESSION IVO NEAR 22.7N 118.7W 1007 MB AT 0900 UTC
AUG
11 MOVING WNW OR 295 DEG AT 09 KT. WITHIN 60 NM N SEMICIRCLE
WINDS
20 TO 30 KT. SEAS 2.5 TO 3 M.
.12 HOUR FORECAST POST-TROPICAL REMNANT LOW IVO NEAR 23.0N
120.3W.
WITHIN 60 NM NW QUADRANT OF CENTER WINDS 20 TO 30 KT. SEAS 2.5
TO 3 M.
.24 HOUR FORECAST POST-TROPICAL REMNANT LOW IVO NEAR 23.0N
122.6W.
WITHIN 30 NM NW QUADRANT OF CENTER WINDS 20 TO 30 KT. SEAS TO 2.5
M.
.36 HOUR FORECAST POST-TROPICAL REMNANT LOW IVO NEAR 23.0N
125.0W.
WITHIN 30 NM NW QUADRANT OF CENTER WINDS 20 TO 30 KT. SEAS TO 2.5
M.
.48 HOUR FORECAST REMNANT LOW IVO...DISSIPATED.

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

.N OF 29N W OF 135W WINDS 20 KT OR LESS. SEAS TO 2.5 M IN NE
SWELL.
.24 HOUR FORECAST N OF 29N W OF 137W WINDS 20 KT OR LESS. SEAS TO

2.5 M IN NE SWELL.
.30 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.

.S OF 05N BETWEEN 127W AND 133W WINDS 20 KT OR LESS. SEAS TO 2.5
M
IN MIXED SW AND NW SWELL.
.18 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.

CONVECTION VALID AT 0845 UTC MON AUG 11...

.TROPICAL DEPRESSION IVO...NO SIGNIFICANT CONVECTION IS NOTED.

.SCATTERED MODERATE WITHIN 60 NM OF 13N105W.

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH AXIS EXTENDS FROM 09N82W TO 10N88W TO 10N100W TO
07N113W TO 09N120W TO 11N130W TO 10N140W. SCATTERED MODERATE TO
STRONG WITHIN 180 NM N OF THE TROUGH BETWEEN 90W AND 92W.
SCATTERED
MODERATE WITHIN 120 NM N OF THE TROUGH BETWEEN 95W AND 98W AND
WITHIN 30 NM OF THE TROUGH BETWEEN 100W AND 105W.

.FORECASTER AGUIRRE. NATIONAL HURRICANE CENTER.

$$