FZPN02 KWBC 211725
HSFEPI 1745
HIGH SEAS FORECAST FOR METAREA XII
NWS OCEAN PREDICTION CENTER WASHINGTON DC
1745 UTC WED AUG 21 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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).
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 1200 UTC AUG 21.
24 HOUR FORECAST VALID 1200 UTC AUG 22.
48 HOUR FORECAST VALID 1200 UTC AUG 23.
.WARNINGS.
…GALE WARNING…
.LOW NW OF AREA NEAR 62N178W 980 MB MOVING NE 25 KT. WITHIN 360
NM SE SEMICIRCLE WINDS 30 TO 40 KT. SEAS 15 TO 28 FT…HIGHEST
SE
OF CENTER. ELSEWHERE W AND N OF A LINE FROM 64N160E TO 56N167W TO
52N180W WINDS 20 TO 30 KT. SEAS 9 TO 18 FT.
.24 HOUR FORECAST LOW N OF AREA NEAR 69N161W 989 MB. N OF 56N W
OF ALASKA WINDS
20 to 30 KT. SEAS 8 TO 12 FT.
.48 HOUR FORECAST LOW WELL N OF AREA WITH NEW LOW TO FORM NEAR
64N163W 1007 MB. N OF 60N E OF 169W WINDS TO 25 KT. SEAS TO 8
FT.
…GALE WARNING…
.COMPLEX LOW WITH MAIN LOW 37N163E 1005 MB MOVING NE 20 KT.
WITHIN 240 NM NW QUADRANT WINDS 25 TO 35 KT. SEAS 8 TO 12 FT.
ELSEWHERE S OF 41N W OF 171E WINDS 20 TO 30 KT. SEAS TO 10 FT.
.24 HOUR FORECAST COMPLEX LOW WITH MAIN LOW 44N170E 1014 MB.
WITHIN 120 NM OF LOW CENTER WINDS 25 TO 35 KT. SEAS 8 TO 12 FT.
ELSEWHERE FROM 35N TO 49N BETWEEN 171W AND 162E WINDS TO 25 KT.
SEAS TO 10 FT.
.48 HOUR FORECAST LOW 52N174W 1019 MB. FROM 44N TO 52N BETWEEN
154W AND 178E WINDS TO 25 KT. SEAS TO 8 FT.
…GALE WARNING…
.30 HOUR FORECAST NEW LOW 60N144W 1008 MB. WITHIN 360 NM SW
SEMICIRCLE WINDS 25 TO 40 KT. SEAS TO 10 FT.
.48 HOUR FORECAST COMPLEX LOW WITH FIRST LOW CENTERED 59N147W
1007 MB SECOND LOW CENTERED 57N139W 1005 MB. WITHIN 300 NM SW
SEMICIRCLE OF FIRST LOW WINDS 25 TO 35 KT. SEAS TO 10 FT.
ELSEWHERE FROM 41N TO 41N BETWEEN 137W AND 144W AREA OF NW WINDS
TO 25 KT. SEAS TO 8 FT.
.SYNOPSIS AND FORECAST.
.INLAND LOW 54N129W 1014 MB MOVING SE 30 KT. WITHIN 420 NM SW
SEMICIRCLE WINDS TO 25 KT. SEAS TO 10 FT.
.24 HOUR FORECAST LOW 47N125W 1012 MB. WITHIN 480 NM W
SEMICIRCLE
WINDS TO 25 KT. SEAS TO 9 FT.
.48 HOUR FORECAST LOW DISSIPATED. FROM 39N TO 45N BETWEEN 127W
AND 133W AREA OF NW WINDS LESS THAN 25 KT. SEAS TO 9 FT.
.FROM 37N TO 52N BETWEEN 161W AND 180W AREA OF SW WINDS LESS
THAN
25 KT. SEAS TO 9 FT.
.24 HOUR FORECAST CONDITIONS DIMINISHED.
.FROM 33N TO 37N BETWEEN 155W AND 168W AREA OF E WINDS TO 25 KT.
SEAS TO 9 FT.
.24 HOUR FORECAST FROM 30N TO 37N BETWEEN 158W AND 175E AREA OF
E
WINDS TO 25 KT. SEAS TO 9 FT.
.48 HOUR FORECAST FROM 34N TO 37N BETWEEN 165W AND 176W AREA OF
E
WINDS LESS THAN 25 KT. SEAS TO 8 FT.
.FROM 32N TO 35N BETWEEN 119W AND 12W AREA OF NW WINDS TO 25 KT.
SEAS TO 8 FT.
.24 HOUR FORECAST CONDITIONS DIMINISHED.
.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 44N TO 59N
BETWEEN 146W AND 174W.
.24 HOUR FORECAST DENSE FOG FROM 44N TO 57N BETWEEN 144W AND
152W…AND FROM 44N TO 52N BETWEEN 152W AND 170E.
.48 HOUR FORECAST DENSE FOG FROM 46N TO 53N BETWEEN 152W AND
179E.
.FORECASTER HYDE. 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 1200 UTC WED AUG 21.
24 HOUR FORECAST VALID 1200 UTC THU AUG 22.
48 HOUR FORECAST VALID 1200 UTC FRI AUG 23.
.WARNINGS.
…HURRICANE WARNING…
.HURRICANE GILMA NEAR 16.0N 122.8W 983 MB AT 1500 UTC AUG 21
MOVING W OR 280 DEG AT 6 KT. MAXIMUM SUSTAINED WINDS 75 KT GUSTS
90 KT. TROPICAL STORM FORCE WINDS WITHIN 90 NM NE QUADRANT…100
NM SE QUADRANT…120 NM SW QUADRANT…AND 70 NM NW QUADRANT.SEAS
12 FT OR GREATER WITHIN 180 NM NE QUADRANT…210 NM SE
QUADRANT…150 NM SW QUADRANT…AND 105 NM NW QUADRANT WITH SEAS
TO 26 FT. ELSEWHERE WITHIN 17N120W TO 19N121W TO 19N125W TO
17N125W TO 13N124W TO 13N120W TO 17N120W WINDS 20 TO 33 KT. SEAS
8 TO 12 FT. REMAINDER OF AREA WITHIN 19N116W TO 20N122W TO
17N126W TO 13N126W TO 12N117W TO 15N115W TO 19N116W WINDS 20 KT
OR LESS. SEAS 8 TO 11 FT IN MIXED SWELL.
.24 HOUR FORECAST HURRICANE GILMA NEAR 16.5N 124.8W. MAXIMUM
SUSTAINED WINDS 95 KT GUSTS 115 KT. TROPICAL STORM FORCE WINDS
WITHIN 80 NM N SEMICIRCLE AND 70 NM S SEMICIRCLE. SEAS 12 FT OR
GREATER WITHIN 150 NM OF CENTER…EXCEPT 180 NM SE QUADRANT WITH
SEAS TO 32 FT. ELSEWHERE WITHIN 17N122W TO 19N123W TO 20N126W TO
18N128W TO 14N126W TO 13N123W TO 17N122W WINDS 20 TO 33 KT. SEAS
8 TO 12 FT. REMAINDER OF AREA WITHIN 21N120W TO 22N125W TO
20N128W TO 15N129W TO 11N125W TO 13N120W TO 21N120W WINDS 20 KT
OR LESS. SEAS 8 TO 11 FT IN MIXED SWELL.
.48 HOUR FORECAST HURRICANE GILMA NEAR 16.9N 127.2W. MAXIMUM
SUSTAINED WINDS 100 KT GUSTS 120 KT. TROPICAL STORM FORCE WINDS
WITHIN 90 NM N SEMICIRCLE AND 80 NM S SEMICIRCLE. SEAS 12 FT OR
GREATER WITHIN 150 NM E SEMICIRCLE…AND 210 NM W SEMICIRCLE
WITH SEAS TO 38 FT. ELSEWHERE WITHIN 19N125W TO 20N129W TO
17N130W TO 15N129W TO 15N125W TO 16N125W TO 19N125W WINDS 20 TO
33 KT. SEAS 8 TO 12 FT. REMAINDER OF AREA WITHIN 23N126W TO
23N131W TO 19N133W TO 14N132W TO 11N128W TO 13N121W TO 23N126W
WINDS 20 KT OR LESS. SEAS 8 TO 11 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.
…GALE WARNING…
.LOW PRES…EP90…NEAR 11N137.5W 1007 MB. LOW PRES…EP91…
NEAR 15.5N134.5W 1006 MB. WITHIN 17N132W TO 20N134W TO 20N137W
TO 15N138W TO 10N136W TO 11N133W TO 17N132W WINDS 20 TO 30 KT.
SEAS 9 TO 12 FT. ELSEWHERE WITHIN 18N131W TO 21N134W TO 20N137W
TO 15N139W TO 10N136W TO 12N131W TO 18N131W WINDS 20 KT OR LESS.
SEAS 8 TO 10 FT IN MIXED SWELL.
.24 HOUR FORECAST LOW PRES…EP90…MERGED WITH LOW PRES…
EP91…POSSIBLE TROPICAL CYCLONE…NEAR 16N140W 1002 MB. WITHIN
16.5N139.5W TO 17N139.5W TO 16.5N140W TO 15.5N140W TO 16N139.5W
TO 16.5N139.5W WINDS 25 TO 35 KT. SEAS 10 TO 14 FT. ELSEWHERE
WITHIN 20N138W TO 21N140W TO 14N140W TO 15N139W TO 17N138W TO
20N138W WINDS 20 TO 25 KT. SEAS 9 TO 11 FT IN MIXED SWELL.
REMAINDER OF AREA WITHIN 19N135W TO 22N140W TO 18N138W TO
13N138W TO 13N137W TO 16N137W TO 19N135W WINDS 20 KT OR LESS.
SEAS 8 TO 10 FT IN MIXED SWELL.
.30 HOUR FORECAST LOW PRES…EP91…POSSIBLE TROPICAL CYCLONE…
AND GALE FORCE WINDS SHIFTED W OF 140W. OVER FORECAST WATERS
LITTLE CHANGE.
.48 HOUR FORECAST LOW PRES…EP91…POSSIBLE TROPICAL CYCLONE…
WELL W OF 140W. OVER FORECAST WATERS WITHIN 19N139W TO
19.5N139.5W TO 20.5N139.5W TO 20.5N140W TO 17.5N140W TO 18.5N139W
TO 19N139W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN MIXED SWELL.
.SYNOPSIS AND FORECAST.
.WITHIN 16N94W TO 16N95W TO 16N96W TO 14N96W TO 14N95W TO 15N95W
TO 16N94W…INCLUDING THE GULF OF TEHUANTEPEC…N TO NE WINDS 20
TO 25 KT. SEAS 8 TO 9 FT.
.24 HOUR FORECAST LITTLE CHANGE.
.48 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS
LESS THAN 8 FT.
.36 HOUR FORECAST BROAD LOW PRES NEAR 14N111.5W 1008 MB. WITHIN
13N114W TO 14N114W TO 13N115W TO 12N115W TO 12N114W TO 13N114W
WINDS 20 KT OR LESS. SEAS 8 FT IN W TO NW SWELL.
.48 HOUR FORECAST BROAD LOW PRES NEAR 14N112.5W 1007 MB. WITHIN
14N113W TO 14N116W TO 10N116W TO 10N114W TO 11N113W TO 14N113W
WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN W TO NW SWELL.
.REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.
CONVECTION VALID AT 1440 UTC WED AUG 21…
.HURRICANE GILMA…NUMEROUS MODERATE TO STRONG WITHIN 90 NM OF
CENTER. SCATTERED MODERATE ELSEWHERE WITHIN 240 NM SE SEMICIRCLE
AND 120 NM NW SEMICIRCLE.
.LOW PRES…EP90…SCATTERED MODERATE WITHIN 210 NM SW QUADRANT.
.LOW PRES…EP91…NUMEROUS MODERATE ISOLATED STRONG WITHIN 240
NM SW SEMICIRCLE.
.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH…
MONSOON TROUGH FROM 09N84W TO 09N90W TO 16N115W THEN RESUMES
WELL W OF GILMA FROM 16N130W TO LOW PRES…EP91…NEAR
15.5N134.5W TO LOW PRES…EP90…NEAR 11N137.5W TO BEYOND
10N140W. SCATTERED MODERATE ISOLATED STRONG FROM 05N TO 11N
BETWEEN 77W AND 95W…FROM 06N TO 17N BETWEEN 98W AND 105W…
AND FROM 10N TO 19N BETWEEN 106W AND 114W.
.FORECASTER LEWITSKY. NATIONAL HURRICANE CENTER.
NATIONAL WEATHER SERVICE HONOLULU HI
NORTH PACIFIC EQUATOR TO 30N BETWEEN 140W AND 160E
SYNOPSIS VALID 1200 UTC AUG 21 2024.
24 HOUR FORECAST VALID 1200 UTC AUG 22 2024.
48 HOUR FORECAST VALID 1200 UTC AUG 23 2024.
.WARNINGS.
…GALE WARNING…
.24 HOUR FORECAST…PSBL TRPCL CYCLONE…LOW NEAR 15N140W 1004
MB. WINDS 20 TO 30 KT AND SEAS 8 TO 13 FT FROM 13N TO 25N BETWEEN
140W AND 146W.
.48 HOUR FORECAST…PSBL TRPCL CYCLONE…LOW 16N143W 1001 MB.
WINDS 30 TO 40 KT AND SEAS 12 FT TO 14 FT WITHIN 90 NM N
SEMICIRCLE OF LOW. WINDS 20 TO 30 KT AND SEAS 8 TO 12 FT
ELSEWHERE FROM 13N TO 26N E OF 151W.
.SYNOPSIS AND FORECAST.
.TROUGH 29N179W 25N179W 23N177W MOVING NW 15 KT. ISOLATED
MODERATE TSTMS BETWEEN 170W AND TROUGH.
.24 HOUR FORECAST TROUGH 30N173E 27N174E.
.48 HOUR FORECAST TROUGH 30N167E 27N167E.
.WINDS 20 TO 25 KT FROM 13N TO 20N E OF 160W.
.24 HOUR FORECAST WINDS 20 TO 25 KT FROM 12N TO 24N BETWEEN 143W
AND 165W.
.48 HOUR FORECAST WINDS 20 TO 25 KT FROM 16N TO 25N BETWEEN 151W
AND 161W.
.24 HOUR FORECAST SEAS 8 TO 9 FT FROM 13N TO 20N BETWEEN 151W AND
166W.
.48 HOUR FORECAST SEAS 8 TO 9 FT FROM 17N TO 25N BETWEEN 152W AND
156W.
.REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS 8 FT OR LESS.
.MONSOON TROUGH 10N140W 08N144W 09N154W. ISOLATED MODERATE TSTMS
WITHIN 120 NM S OF TROUGH.
.ITCZ 09N154W 08N167W 10N171W 09N170E 12S163E. SCATTERED MODERATE
TO LOCALLY STRONG TSTMS WITHIN 300 NM OF ITCZ BETWEEN 171W AND
172E. ELSEWHERE ISOLATED MODERATE TSTMS WITHIN 210 NM OF ITCZ.
.NUMEROUS MODERATE TSTMS FROM 20N TO 27N BETWEEN 175E AND 160E.
¤¤
.FORECASTER ALMANZA. HONOLULU HI.
UUID 5064B328-5FE2-11EF-B092-0AFB0B270000 TX 1
