FZPN02 KWBC 271125
HSFEPI 1145
HIGH SEAS FORECAST FOR METAREA XII
NWS OCEAN PREDICTION CENTER WASHINGTON DC
1145 UTC FRI SEP 27 2024
SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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
[email protected](LOWERCASE).
FOR ANY TROPICAL CYCLONE INFORMATION BEYOND 48 HOURS REFERENCE
THE ASSOCIATED NWS TROPICAL CYCLONE FORECAST/ADVISORY (TCM).
THE NATIONAL WEATHER SERVICE IS ACCEPTING PUBLIC COMMENTS UNTIL
OCTOBER 16 2024 ON A PROPOSAL TO REPLACE FEET WITH METERS WHEN
DESCRIBING SEAS IN A VARIETY OF NATIONAL MARINE CENTER TEXT AND
GRAPHICAL PRODUCTS FOR THE HIGH SEAS AREAS ONLY.
TO LEARN MORE PLEASE VISIT (WEB ADDRESS LOWERCASE)
HTTPS://OCEAN.WEATHER.GOV/PROPOSED-METERS.PHP
FROM OCTOBER 15 TO APRIL 1, DUE TO THE CLIMATOLOGY OF THE NORTH
PACIFIC AND THE FREQUENCY AND VOLUME OF WEATHER HAZARDS, ALONG
WITH CUSTOMER FEEDBACK, HIGH SEAS FORECASTS WILL BE LIMITED TO
WINDS OF 25 TO 35 KNOTS AND HIGHER, AND SEAS OF 12 FEET OR
GREATER, ALONG WITH FREEZING SPRAY, DENSE FOG, VOLCANIC ASH,
AND ANYTHING TROPICAL (INCLUDING A DEPRESSION). LESSER
CONDITIONS WILL BE INCLUDED FOR WARNING CONDITIONS AND TO
PRESERVE CONTINUITY WHERE APPROPRIATE.
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 SEP 27.
24 HOUR FORECAST VALID 0600 UTC SEP 28.
48 HOUR FORECAST VALID 0600 UTC SEP 29.
.WARNINGS.
…STORM WARNING…
.LOW 53N131W 985 MB MOVING NE 25 KT. WITHIN 180 NM SW SEMICIRCLE
WINDS 40 TO 50 KT. SEAS 13 TO 27 FT. ELSEWHERE FROM 45N TO 55N
BETWEEN 126W AND 139W WINDS 25 TO 40 KT. SEAS 10 TO 24
FT…HIGHEST NEAR 49N133W. ALSO…EXCEPT WHERE OTHERWISE
DESCRIBED BELOW…FROM 36N TO 55N BETWEEN 124W AND 160W WINDS
LESS THAN 25 KT. SEAS 8 TO 17 FT IN MIXED SWELL.
.24 HOUR FORECAST LOW DISSIPATED INLAND. EXCEPT WHERE DESCRIBED
IN SYNOPSIS BELOW…FROM 32N TO 53N E OF 145W WINDS LESS THAN 25
KT. SEAS TO 11 FT.
.48 HOUR FORECAST CONDITIONS DIMINISHED.
…STORM WARNING…
.LOW 41N161E 1002 MB MOVING E 25 KT. FROM 41N TO 44N W OF 170E
WINDS 35 TO 50 KT. SEAS 10 TO 19 FT. ELSEWHERE FROM 33N TO 45N W
OF 178E WINDS 25 TO 35 KT. SEAS 8 TO 13 FT.
.24 HOUR FORECAST COMPLEX LOW WITH FIRST CENTER 40N174E 1000 MB
AND NEW SECOND CENTER 39N174W 1005 MB. WITHIN 180 NM N OF FRONT
FROM FIRST CENTER TO SECOND CENTER TO 39N171W WINDS 35 TO 45 KT.
SEAS 11 TO 22 FT. ELSEWHERE S OF 45N W OF 167W WINDS 25 TO 35 KT.
SEAS 8 TO 18 FT.
.48 HOUR FORECAST COMPLEX LOW WITH FIRST CENTER 40N170W 992 MB
AND SECOND CENTER 42N162W 993 MB. WITHIN 120 NM EITHER SIDE OF
FRONT FROM FIRST CENTER TO SECOND CENTER TO 41N159W WINDS 30 TO
45 KT. SEAS 10 TO 21 FT. ELSEWHERE S OF 46N BETWEEN 152W AND 172E
WINDS 25 TO 35 KT. SEAS 8 TO 19 FT. ALSO S OF 46N W OF 172E WINDS
LESS THAN 25 KT. SEAS 8 TO 13 FT.
…GALE WARNING…
.COMPLEX LOW WITH FIRST CENTER 55N174W 998 MB MOVING SE 20 KT AND
SECOND CENTER 59N171W 996 MB MOVING SE 05 KT. FROM 45N TO 63N
BETWEEN 159W AND 172E WINDS 25 TO 35 KT. SEAS 8 TO 14 FT.
ELSEWHERE N OF 63N W OF ALASKA COAST WINDS TO 25 KT. SEAS TO 8
FT.
.24 HOUR FORECAST LOW 53N161W 1002 MB WITH SECOND CENTER
ABSORBED. WITHIN 480 NM S AND W QUADRANTS WINDS 25 TO 35 KT. SEAS
8 TO 14 FT. ELSEWHERE WITHIN 580 NM E AND 600 NM S QUADRANTS
WINDS 20 TO 30 KT. SEAS TO 11 FT.
.48 HOUR FORECAST LOW 58N153W 1008 MB. N OF 46N BETWEEN 139W AND
158W WINDS 20 TO 30 KT. SEAS TO 11 FT.
…GALE WARNING…
.LOW 59N166W 997 MB DRIFTING NW. CONDITIONS DESCRIBED ABOVE WITH
FIRST GALE WARNING.
.24 HOUR FORECAST LOW 60N165W 997 MB. N OF 56N BETWEEN 165W AND
172W AREA OF N TO NW WINDS 25 TO 35 KT. SEAS TO 11 FT.
.48 HOUR FORECAST LOW 61N168W 1001 MB. N OF 59N W OF 169W AREA OF
N TO NW WINDS 20 TO 30 KT. SEAS TO 10 FT.
…GALE WARNING…
.COMPLEX LOW WITH MAIN CENTER 54N142W 1003 MB MOVING NE 15 KT.
WITHIN 480 NM S AND 540 NM W QUADRANTS WINDS 25 TO 35 KT. SEAS 8
TO 14 FT.
.24 HOUR FORECAST COMPLEX LOW DISSIPATED. FROM 53N TO 58N BETWEEN
130W AND 143W WINDS LESS THAN 25 KT. SEAS TO 11 FT.
.48 HOUR FORECAST CONDITIONS DIMINISHED.
…GALE WARNING…
.24 HOUR FORECAST LOW 59N178W 1006 MB. N OF 54N W OF 176W WINDS
20 TO 30 KT. SEAS TO 8 FT.
.48 HOUR FORECAST LOW 56N168W 996 MB. FROM 50N TO 59N BETWEEN
161W AND 177W WINDS 25 TO 40 KT. SEAS 8 TO 16 FT.
.SYNOPSIS AND FORECAST.
.FROM 33N TO 41N E OF 127W WINDS 20 TO 30 KT. SEAS TO 12 FT.
.24 HOUR FORECAST FROM 34N TO 48N E OF 130W WINDS 20 TO 30 KT.
SEAS 8 TO 15 FT.
.48 HOUR FORECAST FROM 32N TO 50N E OF 130W WINDS 20 TO 30 KT.
SEAS 8 TO 14 FT.
.DENSE FOG. 24 HOUR FORECAST VSBY OCCASIONALLY LESS THAN 1 NM N
OF
64N W OF 169W.
.48 HOUR FORECAST DENSE FOG FROM 60N TO 64N BETWEEN 168W AND
173W.
.FORECASTER JOSEPH. 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 FRI SEP 27.
24 HOUR FORECAST VALID 0600 UTC SAT SEP 28.
48 HOUR FORECAST VALID 0600 UTC SUN SEP 29.
.WARNINGS.
…TROPICAL STORM WARNING…
.TROPICAL STORM JOHN NEAR 17.8N 102.9W 988 MB AT 0900 UTC SEP 27
MOVING NW OR 320 DEG AT 4 KT. MAXIMUM SUSTAINED WINDS 55 KT
GUSTS 65 KT. TROPICAL STORM FORCE WINDS WITHIN 40 NM N
SEMICIRCLE…140 NM SE QUADRANT AND 60 NM SW QUADRANT. SEAS 12
FT OR GREATER WITHIN 45 NM NE QUADRANT…330 NM SE
QUADRANT…300 NM SW QUADRANT…AND 75 NM NW QUADRANT WITH SEAS
TO 18 FT. ELSEWHERE WITHIN 17N99W TO 19N104W TO 18N107W TO
12N111W TO 10N110W TO 12N100W TO 17N99W WINDS 20 TO 33 KT. SEAS
10 TO 12
FT. REMAINDER AREA WITHIN 15N94W TO 19N105W TO 18N108W TO
11N114W TO 10N108W TO 10N101W TO 15N94W WINDS 20 KT OR LESS.
SEAS 8 TO 11 FT IN MIXED SWELL.
.24 HOUR FORECAST TROPICAL DEPRESSION JOHN NEAR 19.3N 104.8W.
MAXIMUM SUSTAINED WINDS 30 KT GUSTS 40 KT. OVER FORECAST WATERS
WITHIN 20N106W TO 18N106W TO 19N104W TO 20N106W WINDS 20 TO 30
KT. SEAS 8 TO 10 FT. ELSEWHERE WITHIN 15N94W TO 17N106W TO
26N114W TO 24N116W TO 14N111W TO 09N104W TO 15N94W WINDS 20 KT OR
LESS. SEAS 8 TO 10 FT IN MIXED SWELL.
.36 HOUR FORECAST POST-TROPICAL JOHN NEAR 19.6N 106.2W. MAXIMUM
SUSTAINED WINDS 25 KT GUSTS 35 KT.
.48 HOUR FORECAST POST-TROPICAL REMNANT LOW JOHN NEAR 20.3N
107.6W. MAXIMUM SUSTAINED WINDS 25 KT GUSTS 35 KT. WITHIN 21N108W
TO 21N106W TO 20N106W TO 20N108W TO 21N108W WINDS 20 TO 25 KT.
SEAS TO 8 FT. WITHIN 13N99W TO 13N105W TO 11N111W TO 09N113W TO
08N111W TO 09N104W TO 13N99W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT
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.
.42 HOUR FORECAST WITHIN 30N125.5W TO 30N129.5W TO 29.5N129.5W
TO 29.5N128W TO 29.5N126W TO 30N125.5W WINDS 20 KT OR LESS. SEAS
8 FT IN NW SWELL.
.48 HOUR FORECAST WITHIN 30N124W TO 30N130W TO 29N129W TO
29N128W TO 29N126W TO 30N124W WINDS 20 KT OR LESS. SEAS 8 TO 9
FT IN NW SWELL.
.REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.
CONVECTION VALID AT 0900 UTC FRI SEP 27…
.TROPICAL STORM JOHN…SCATTERED TO NUMEROUS MODERATE TO
STRONG FROM 14N TO 19N BETWEEN 98W AND 106W. SCATTERED MODERATE
ELSEWHERE FROM 10N TO 20N BETWEEN 97W AND 110W.
.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH…
MONSOON TROUGH FROM 17N109W TO 11N140W. SCATTERED MODERATE
FROM 08N TO 14N BETWEEN 110W AND 140W.
.FORECASTER AL. NATIONAL HURRICANE CENTER.
NATIONAL WEATHER SERVICE HONOLULU HI
NORTH PACIFIC EQUATOR TO 30N BETWEEN 140W AND 160E
SYNOPSIS VALID 0600 UTC SEP 27 2024.
24 HOUR FORECAST VALID 0600 UTC SEP 28 2024.
48 HOUR FORECAST VALID 0600 UTC SEP 29 2024.
.WARNINGS.
.NONE.
.SYNOPSIS AND FORECAST.
.LOW NEAR 06N168W 1010 MB. TROUGH 17N174W 11N175W 10N175E TO LOW
TO 10N160E. LOW AND TROUGH MOVING NW SLOWLY. ISOLATED MODERATE
TSTMS WITHIN 120 NM OF LOW AND TROUGH.
.24 HOUR FORECAST LOW NEAR 08N163E. TROUGH 11N171E TO LOW TO
07N160E.
.48 HOUR FORECAST LOW MOVED W OUT OF AREA. TROUGH 13N168E
09N160E.
.TROUGH 10N160W 07N161W 02N167W MOVING NW 15 KT. ISOLATED MODERATE
TSTMS WITHIN 90 NM OF TROUGH.
.24 HOUR FORECAST TROUGH 13N165W 05N170W.
.48 HOUR FORECAST TROUGH 14N169W 08N174W.
.WINDS 20 KT OR LESS AND SEAS 8 FT OR LESS OVER ENTIRE FORECAST
AREA.
.MONSOON TROUGH 11N140W 10N145W 11N150W 12N157W. SCATTERED
MODERATE TSTMS WITHIN 120 NM OF TROUGH W OF 145W. ISOLATED
MODERATE TSTMS WITHIN 90 NM OF TROUGH E OF 145W.
.ISOLATED MODERATE TSTMS N OF 23N BETWEEN 170W AND 165W.
¤¤
.FORECASTER PIERCE. HONOLULU HI.
UUID 2BFC3F76-7CC3-11EF-B8E6-0AFB0B260000 TX 1
