METAREA 12 bulletinset


HURRICANE ADVISORY
WTPA22 PHFO 122043

TCMCP2

POTENTIAL TROPICAL CYCLONE ONE-C FORECAST/ADVISORY NUMBER 2

NWS CENTRAL PACIFIC HURRICANE CENTER HONOLULU HI CP012026

ISSUED BY NWS NATIONAL HURRICANE CENTER MIAMI FL

2100 UTC WED AUG 12 2026

POTENTIAL TROP CYCLONE CENTER LOCATED NEAR 14.7N 142.6W AT 12/2100Z

POSITION ACCURATE WITHIN 40 NM

PRESENT MOVEMENT TOWARD THE WEST OR 260 DEGREES AT 8 KT

ESTIMATED MINIMUM CENTRAL PRESSURE 1003 MB

MAX SUSTAINED WINDS 35 KT WITH GUSTS TO 45 KT.

34 KT.......240NE 0SE 0SW 0NW.

4 M SEAS....180NE 180SE 0SW 120NW.

WINDS AND SEAS VARY GREATLY IN EACH QUADRANT. RADII IN NAUTICAL

MILES ARE THE LARGEST RADII EXPECTED ANYWHERE IN THAT QUADRANT.

REPEAT...CENTER LOCATED NEAR 14.7N 142.6W AT 12/2100Z

AT 12/1800Z CENTER WAS LOCATED NEAR 14.7N 142.2W

FORECAST VALID 13/0600Z 15.2N 143.7W...POTENTIAL TROP CYCLONE

MAX WIND 35 KT...GUSTS 45 KT.

34 KT...200NE 0SE 0SW 90NW.

FORECAST VALID 13/1800Z 15.9N 145.1W...TROPICAL CYCLONE

MAX WIND 40 KT...GUSTS 50 KT.

34 KT...150NE 60SE 0SW 90NW.

FORECAST VALID 14/0600Z 17.0N 147.1W

MAX WIND 45 KT...GUSTS 55 KT.

34 KT...120NE 60SE 0SW 90NW.

FORECAST VALID 14/1800Z 17.9N 149.5W

MAX WIND 50 KT...GUSTS 60 KT.

50 KT... 40NE 10SE 0SW 0NW.

34 KT...100NE 70SE 50SW 100NW.

FORECAST VALID 15/0600Z 18.6N 152.0W

MAX WIND 55 KT...GUSTS 65 KT.

50 KT... 40NE 10SE 0SW 40NW.

34 KT...110NE 70SE 50SW 100NW.

FORECAST VALID 15/1800Z 19.3N 154.6W

MAX WIND 60 KT...GUSTS 75 KT.

50 KT... 40NE 10SE 0SW 40NW.

34 KT...110NE 70SE 50SW 110NW.

EXTENDED OUTLOOK. NOTE...ERRORS FOR TRACK HAVE AVERAGED NEAR 150 NM

ON DAY 4 AND 200 NM ON DAY 5...AND FOR INTENSITY NEAR 20 KT EACH DAY

OUTLOOK VALID 16/1800Z 21.0N 160.0W

MAX WIND 55 KT...GUSTS 65 KT.

50 KT... 40NE 10SE 0SW 40NW.

34 KT...120NE 70SE 50SW 110NW.

OUTLOOK VALID 17/1800Z 22.9N 165.8W

MAX WIND 60 KT...GUSTS 75 KT.

50 KT... 40NE 10SE 0SW 40NW.

34 KT...120NE 70SE 50SW 110NW.

REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 14.7N 142.6W

NEXT ADVISORY AT 13/0300Z

$$

FORECASTER PASCH


HIGH SEAS FORECAST
FZPN02 KWBC 122325

HSFEPI

HIGH SEAS FORECAST FOR METAREA XII

NWS OCEAN PREDICTION CENTER WASHINGTON DC

2345 UTC WED AUG 12 2026

CCODE/1:31:12:01:00/AOW+POR/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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 ANY TROPICAL CYCLONE INFORMATION BEYOND 48 HOURS REFERENCE

THE ASSOCIATED NWS TROPICAL CYCLONE FORECAST/ADVISORY (TCM).

SECURITE

PACIFIC S OF 67N AND N OF 30N E OF A LINE FROM THE BERING STRAIT

TO 53N172E TO 50N180W TO 30N180W

ALL FORECASTS VALID OVER ICE FREE FORECAST WATERS

SYNOPSIS VALID 1800 UTC AUG 12.

24 HOUR FORECAST VALID 1800 UTC AUG 13.

48 HOUR FORECAST VALID 1800 UTC AUG 14.

.WARNINGS.

...GALE WARNING...

.24 HOUR FORECAST FROM 30N TO 40N BETWEEN 180W AND 176W WINDS 20

TO 30 KT. SEAS TO 3.5 M.

.30 HOUR FORECAST FROM 32N TO 38N BETWEEN 180W AND 177W AREA OF S

WINDS 25 TO 35 KT. SEAS 3 TO 4 M.

.48 HOUR FORECAST NEW COMPLEX LOW WITH MEAN CENTER JUST W OF AREA

NEAR 39N178E 991 MB. WITHIN 180 NM EITHER SIDE OF A LINE FROM

34N179W TO 43N170W WINDS 25 TO 40 KT. SEAS 2.5 TO 5 M. ELSEWHERE

WITHIN AN AREA BOUNDED BY A LINE FROM 30N180W TO 30N176W TO

37N169W TO 44N169W TO 46N180W TO 30N180W WINDS 20 TO 30 KT. SEAS

2.5 TO 4 M.

.SYNOPSIS AND FORECAST.

.FROM 32N TO 42N BETWEEN 123W AND A LINE FROM 32N131W TO 42N127W

AREA OF N TO NW WINDS 20 TO 30 KT. SEAS 2.5 TO 4 M.

.24 HOUR FORECAST FROM 34N TO 42N BETWEEN 123W AND A LINE FROM

34N129W TO 42N127W AREA OF N TO NW WINDS TO 25 KT. SEAS TO 3.5

M.

.48 HOUR FORECAST CONDITIONS DIMINISHED.

.LOW 54N176W 999 MB MOVING N 10 KT THEN BECOMING NEARLY

STATIONARY AFTER 12 HOURS. FRONT FROM 60N178W TO 56N177W TO

50N173W. WITHIN 180 NM W AND SW QUADRANTS...AND

WITHIN 240 NM E OF FRONT...WINDS 20 TO 30 KT. SEAS TO 3.5 M.

.24 HOUR FORECAST LOW 56N176W 1000 MB. WITHIN 180 NM SW AND 300

NM NW QUADRANTS WINDS 20 TO 30 KT. SEAS TO 3 M.

.48 HOUR FORECAST LOW 54N177W 1003 MB. CONDITIONS DIMINISHED.

.LOW 45N160W 1000 MB MOVING NE 15 KT. WITHIN 300 NM SW AND S

QUADRANTS...AND FROM 36N TO 50N BETWEEN 158W AND 149W...WINDS 20

TO 30 KT. SEAS TO 3.5 M. ALSO FROM 55N TO 58N BETWEEN 161W AND

148W WINDS 20 TO 30 KT. SEAS LESS THAN 2.5 M.

.24 HOUR FORECAST LOW 50N156W 1005 MB. WITHIN 180 NM EITHER SIDE

OF A LINE FROM 43N155W TO 53N151W...AND WITHIN 180 NM NE OF A

LINE FROM 58N165W TO 50N148W...WINDS TO 25 KT. SEAS TO 3 M.

.48 HOUR FORECAST LOW 53N158W 1011 MB. CONDITIONS DIMINISHED.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM WITHIN AN AREA

BOUNDED BY A LINE FROM 45N163W TO 45N134W TO 55N148W TO 55N163W

TO 45N163W...AND FROM 51N TO 57N W OF 176E.

.24 HOUR FORECAST DENSE FOG WITHIN AN AREA BOUNDED BY A LINE FROM

48N155W TO 48N138W TO 59N149W TO 60N169W TO 58N175W TO

48N155W...AND FROM 51N TO 55N W OF 177E.

.48 HOUR FORECAST DENSE FOG WITHIN 90 NM EITHER SIDE OF A LINE

FROM 62N178W TO 56N165W...AND WITHIN 120 NM EITHER SIDE OF A LINE

FROM 58N153W TO 48N140W.

.FORECASTER CONNELLY. 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 1800 UTC WED AUG 12.

24 HOUR FORECAST VALID 1800 UTC THU AUG 13

48 HOUR FORECAST VALID 1800 UTC FRI AUG 14.

.WARNINGS.

...GALE WARNING...

.PTC ONE-C WEST OF AREA. OVER FORECAST WATERS WITHIN 17N139W TO

18N140W TO 15N140W TO 15N139W TO 16N138W TO 17N139W WINDS 30 TO

35 KT. SEAS 3.5 TO 4.0 M. REMAINDER FORECAST WATERS WITHIN

21N136W TO 24N140W TO 04N140W TO 09N135W TO 12N134W TO 21N136W

WINDS 20 TO 30 KT. SEAS 2.5 TO 3.5 M.

.12 HOUR FORECAST PTC ONE-C MOVE FURTHER W OF AREA. OVER

FORECAST WATERS WITHIN 26N137W TO 29N140W TO 08N140W TO 16N136W

TO 26N137W WINDS 20 TO 30 KT. SEAS 2.5 TO 4.0 M.

.24 HOUR FORECAST WITHIN 22N137W TO 25N137W TO 27N140W TO

09N140W TO 15N137W TO 22N137W E WINDS 20 TO 25 KT. SEAS 2.5 TO

3.0 M.

.48 HOUR FORECAST WITHIN 22N137W TO 25N137W TO 27N140W TO

09N140W TO 15N137W TO 22N137W WINDS 20 KT OR LESS. SEAS 2.5 TO

3.0 M IN SE TO S SWELL.

.SYNOPSIS AND FORECAST.

.LOW PRES NEAR 17.5N131W 1009 MB. WITHIN 20N130W TO 22N131W TO

21N132W TO 19N134W TO 17N133W TO 17N130W TO 20N130W WINDS 20 TO

25

KT. SEAS 2.5 TO 3.0 M.

.24 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR

18.5N132W 1008 MB. WITHIN 20N130W TO 23N132W TO 24N135W TO

16N134W

TO 17N131W TO 20N130W WINDS 20 TO 30 KT. SEAS 2.5 TO 3.0 M.

.48 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR

17.5N133W 1009 MB. WITHIN 22N128W TO 23N135W TO 17N135W TO

17N132W

TO 20N127W TO 22N128W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN

MIXED SWELL.

.WITHIN 15N93W TO 16N95W TO 16N96W TO 15N96W TO 14N94W TO 14N93W

TO

15N93W...INCLUDING THE GULF OF TEHUANTEPEC... N TO NE WINDS 20 TO

25

KT. SEAS LESS THAN 2.5 M.

.24 HOUR FORECAST LITTLE CHANGE.

.48 HOUR FORECAST LITTLE CHANGE.

.WITHIN 12N86W TO 11N87W TO 10N88W TO 10N87W TO 10N86W TO 11N86W

TO

12N86W...INCLUDING THE GULF OF PAPAGAYO... NE TO E WINDS 20 TO 25

KT. SEAS LESS THAN 2.5 M.

.24 HOUR FORECAST LITTLE CHANGE.

.48 HOUR FORECAST LITTLE CHANGE

.WITHIN 02N107W TO 03N125W TO 00N133W TO 01S120W TO 03.4S120W TO

03.4S103W TO 02N107W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN S

TO

SW SWELL.

.24 HOUR FORECAST WITHIN 01N98W TO 06N108W TO 06N119W TO 00N130W

TO

03.4S120W TO 03.4S95W TO 01N98W WINDS 20 KT OR LESS. SEAS 2.5 TO

3.0

M IN S TO SW SWELL.

.48 HOUR FORECAST WITHIN 04N99W TO 05N104W TO 00N129W TO

03.4S120W

TO 03.4S86W TO 04N99W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN S

TO

SW SWELL.

.REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.

CONVECTION VALID AT 2100 UTC WED AUG 12...

LOW PRES NEAR 17.5N131W...SCATTERED MODERATE ISOLATED STRONG FROM

10N TO 20N BETWEEN 128W AND 140W.

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...

MONSOON TROUGH FROM 09N84W TO 09N104W. ITCZ FROM 09N104W TO

08N117W.

SCATTERED MODERATE FROM 02N TO 08N E OF 125W

.FORECASTER AL. NATIONAL HURRICANE CENTER.

NATIONAL WEATHER SERVICE HONOLULU HI

NORTH PACIFIC EQUATOR TO 30N BETWEEN 140W AND 180W

SYNOPSIS VALID 1800 UTC AUG 12 2026.

24 HOUR FORECAST VALID 1800 UTC AUG 13 2026.

48 HOUR FORECAST VALID 1800 UTC AUG 14 2026.

.WARNINGS.

...TROPICAL STORM WARNING...

.TROPICAL CYCLONE ONE-C NEAR 14.7N 142.6W 1003 MB AT 2100 UTC AUG

12 MOVING W OR 260 DEG AT 8 KT. MAXIMUM SUSTAINED WINDS 35 KT

GUSTS

45 KT. TROPICAL STORM FORCE WINDS WITHIN 240 NM NE QUADRANT. SEAS

4 M WITHIN 180 NM E SEMICIRCLE...AND 120 NM NW QUADRANT. WINDS

20 TO 30 KT AND SEAS 2.5 TO 3.5 M ELSEWHERE FROM 06N TO 21N E OF

150W. SCATTERED MODERATE TO STRONG TSTMS WITHIN 210 NM OF CYCLONE

CENTER.

.24 HOUR FORECAST TROPICAL STORM ONE-C NEAR 15.9N 144.1W. MAXIMUM

SUSTAINED WINDS 40 KT GUSTS 50 KT. TROPICAL STORM FORCE WINDS

WITHIN 90 NM N SEMICIRCLE...AND 60 NM SE QUADRANT. WINDS 20 TO 30

KT ELSEWHERE AND SEAS 3 TO 5 M FROM 12N TO 23N E OF 151W.

.48 HOUR FORECAST TROPICAL STORM ONE-C NEAR 17.9N 148.3W. MAXIMUM

SUSTAINED WINDS 50 KT GUSTS 60 KT. TROPICAL STORM FORCE WINDS

WITHIN

100 NM N SEMICIRCLE...AND 70 NM SE QUADRANT...AND 50 NM SW

QUADRANT.

WINDS 20 TO 30 KT ELSEWHERE AND SEAS 3 TO 6 M FROM 14N TO 23N

BETWEEN

143W AND 158W. SEAS 2.5 TO 3 M ELSEWHERE FROM 12N TO 26N E OF

158W.

FORECAST WINDS IN AND NEAR ACTIVE TROPICAL CYCLONES SHOULD BE USED

WITH CAUTION DUE TO UNCERTAINTY IN FORECAST TRACK...SIZE AND

INTENSITY.

SEE THE LATEST BULLETIN ISSUED BY NHC UNDER WMO HEADER WTPA22 PHFO

.SYNOPSIS AND FORECAST

.WINDS 20 KT OR LESS OVER THE REMAINDER OF FORECAST AREA.

.SEAS 2.5 M OR LOWER OVER THE REMAINDER OF FORECAST AREA.

.MONSOON TROUGH 11N142W 10N144W 09N149W 07N153W 09N167W 08N173W

08N180W. NUMEROUS MODERATE TSTMS WITHIN 240 NM S OF TROUGH...AND

210

NM N OF TROUGH E OF 154W. SCATTERED MODERATE TSTMS WITHIN 210 NM

OF

TROUGH BETWEEN 154W AND 170W.

.SCATTERED MODERATE TSTMS FROM 12N TO 17N BETWEEN 175W AND 180W.

$$

.FORECASTER TSAMOUS. HONOLULU HI.=