FZPN02 KWBC 212325
HSFEPI 2345
HIGH SEAS FORECAST FOR METAREA XII
NWS OCEAN PREDICTION CENTER WASHINGTON DC
2345 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1800 UTC AUG 21.
24 HOUR FORECAST VALID 1800 UTC AUG 22.
48 HOUR FORECAST VALID 1800 UTC AUG 23.
.WARNINGS.
…GALE WARNING…
.LOW NW OF AREA NEAR 64N173W 982 MB MOVING NE 25 KT. WITHIN 360
NM SE SEMICIRCLE WINDS 30 TO 45 KT. SEAS 14 TO 24 FT…HIGHEST SE
OF CENTER. ELSEWHERE W AND N OF A LINE FROM 64N160E TO 57N165W TO
53N177W TO 54N170E WINDS 20 TO 30 KT. SEAS 9 TO 15 FT.
.24 HOUR FORECAST LOW WELL N OF AREA WITH NEW LOW TO FORM NEAR
63N179W 1002 MB. N OF 55N W OF ALASKA WINDS 20 TO 30 KT. SEAS 8
TO 11 FT.
.48 HOUR FORECAST LOW 64N162W5N TO 53N BETWEEN
158W AND 178W WINDS TO 25 KT. SEAS TO 8 FT.
…GALE WARNING…
.24 HOUR FORECAST NEW LOW 60N145W 1008 MB. WITHIN 360 NM SW
SEMICIRCLE WINDS 25 TO 40 KT. SEAS TO 9 FT.
.48 HOUR FORECAST COMPLEX LOW WITH FIRST LOW CENTERED 59N146W
1007 MB SECOND LOW CENTERED 57N138W 1005 MB. WITHIN 300 NM SW
SEMICIRCLE OF FIRST LOW…WITHIN 240 NM SW QUADRANT OF SECOND
LOW…AND FROM 40N TO 49N BETWEEN 136W AND 143W WINDS 20 TO 30
KT. SEAS TO 9 FT.
.SYNOPSIS AND FORECAST.
.LOW 49N127W 1013 MB MOVING SE 25 KT. WITHIN 420 NM SW SEMICIRCLE
WINDS TO 25 KT. SEAS TO 9 FT.
.24 HOUR FORECAST LOW 46N126W 1014 MB. WITHIN 420 NM W SEMICIRCLE
WINDS TO 25 KT. SEAS TO 10 FT.
.48 HOUR FORECAST LOW DISSIPATED. FROM 38N TO 45N BETWEEN 126W
AND 134W AREA OF NW WINDS LESS THAN 25 KT. SEAS TO 9 FT.
.FROM 39N TO 52N BETWEEN 166W AND 179W AREA OF SW WINDS LESS THAN
25 KT. SEAS TO 9 FT.
.24 HOUR FORECAST CONDITIONS DIMINISHED.
.FROM 33N TO 38N BETWEEN 154W AND 170W AREA OF E WINDS TO 25 KT.
SEAS TO 9 FT.
.24 HOUR FORECAST S OF 38N BETWEEN 158W AND 172E AREA OF E WINDS
TO 25 KT. SEAS TO 9 FT.
.48 HOUR FORECAST FROM 33N TO 37N BETWEEN 170W AND 179E AREA OF E
WINDS LESS THAN 25 KT. SEAS TO 8 FT.
.FROM 32N TO 35N BETWEEN 120W AND 122W 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 43N TO 56N
BETWEEN 146W AND 177E.
.24 HOUR FORECAST DENSE FOG FROM 48N TO 54N BETWEEN 142W AND
148W…AND FROM 44N TO 52N BETWEEN 150W AND 170E.
.48 HOUR FORECAST DENSE FOG FROM 47N TO 53N BETWEEN 149W AND
175W…AND WITHIN 60 NM SE OF A LINE FROM 47N176W TO 42N169E.
.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 1800 UTC WED AUG 21.
24 HOUR FORECAST VALID 1800 UTC THU AUG 22.
48 HOUR FORECAST VALID 1800 UTC FRI AUG 23.
.WARNINGS.
…HURRICANE WARNING…
.HURRICANE GILMA NEAR 16.3N 123.2W 972 MB AT 2100 UTC AUG 21
MOVING WNW OR 285 DEG AT 6 KT. MAXIMUM SUSTAINED WINDS 90 KT
GUSTS 110 KT. TROPICAL STORM FORCE WINDS WITHIN 100 NM E
SEMICIRCLE…110 NM SW QUADRANT AND 80 NM NW QUADRANT. SEAS 12
FT OR GREATER WITHIN 180 NM OF CENTER EXCEPT 120 NM NW QUADRANT
WITH SEAS TO 28 FT. ELSEWHERE WITHIN 18N121W TO 19N123W TO
18N126W TO 15N126W TO 13N125W TO 14N120W TO 18N121W WINDS 20 TO
33 KT. SEAS 8 TO 12 FT. REMAINDER OF AREA WITHIN 17N115W TO
21N122W TO 20N126W TO 14N127W TO 12N124W TO 13N116W TO 17N115W
WINDS 20 KT OR LESS. SEAS 8 TO 11 FT IN MIXED SWELL.
.24 HOUR FORECAST HURRICANE GILMA NEAR 16.9N 125.2W. MAXIMUM
SUSTAINED WINDS 115 KT GUSTS 140 KT. TROPICAL STORM FORCE WINDS
WITHIN 80 NM N SEMICIRCLE AND 70 NM S SEMICIRCLE. SEAS 12 FT OR
GREATER WITHIN 150 NM N SEMICIRCLE…AND 180 NM S SEMICIRCLE
WITH SEAS TO 35 FT. ELSEWHERE WITHIN 19N123W TO 20N124W TO
20N128W TO 17N128W TO 14N125W TO 14N123W TO 19N123W WINDS 20 TO
33 KT. SEAS 8 TO 12 FT. REMAINDER OF AREA WITHIN 20N121W TO
23N126W TO 19N131W TO 13N129W TO 12N127W TO 13N120W TO 20N121W
WINDS 20 KT OR LESS. SEAS 8 TO 11 FT IN MIXED SWELL.
.48 HOUR FORECAST HURRICANE GILMA NEAR 17.4N 127.8W. MAXIMUM
SUSTAINED WINDS 105 KT GUSTS 130 KT. LITTLE CHANGE IN RADIUS OF
TROPICAL STORM FORCE WINDS. SEAS 12 FT OR GREATER WITHIN 150 NM
E SEMICIRCLE…AND 240 NM W SEMICIRCLE WITH SEAS TO 43 FT.
ELSEWHERE WITHIN 19N125W TO 21N127W TO 21N129W TO 18N131W TO
15N129W TO 15N127W TO 19N125W WINDS 20 TO 33 KT. SEAS 8 TO 12 FT.
REMAINDER OF AREA WITHIN 18N123W TO 24N132W TO 19N136W TO
13N133W TO 10N129W TO 12N124W TO 18N123W 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…EP91…NEAR 15.5N134.5W 1006 MB. WITHIN 17N133W TO
21N136W TO 20N140W TO 16N140W TO 11N135W TO 13N133W TO 17N133W
WINDS 20 TO 30 KT. SEAS 9 TO 12 FT. ELSEWHERE WITHIN 18N131W TO
22N136W TO 21N140W TO 14N140W TO 10N136W TO 11N132W TO 18N131W
WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN MIXED SWELL.
.18 HOUR FORECAST LOW PRES…EP91…POSSIBLE TROPICAL CYCLONE…
NEAR 15.5N140W 1004 MB. WITHIN 17N139W TO 17N140W TO 15N140W TO
15N139W TO 16N138W TO 17N139W WINDS 25 TO 35 KT. SEAS 9 TO 13
FT. ELSEWHERE WITHIN 18N138W TO 20N138W TO 21N140W TO 14N140W TO
15N138W TO 18N138W WINDS 20 TO 25 KT. SEAS 8 TO 11 FT IN MIXED
SWELL. REMAINDER OF AREA WITHIN 21N136W TO 23N140W TO 17N137W TO
14N140W TO 12N138W TO 15N135W TO 21N136W WINDS 20 KT OR LESS.
SEAS 8 TO 10 FT IN MIXED SWELL.
.24 HOUR FORECAST LOW PRES…EP91…POSSIBLE TROPICAL CYCLONE…
AND GALE FORCE WINDS MOVED W OF 140W. LITTLE CHANGE OVER FORECAST
WATERS.
.48 HOUR FORECAST LOW PRES…EP91…POSSIBLE TROPICAL CYCLONE…
WELL W OF 140W. OVER FORECAST WATERS WITHIN 19N139W TO 20N140W
TO 17N140W TO 18N139W TO 19N139W WINDS 20 KT OR LESS. SEAS 8 FT
IN MIXED SWELL.
.SYNOPSIS AND FORECAST.
.WITHIN 15N94W TO 16N95W TO 16N96W TO 14N96W TO 14N95W TO
15N94W…INCLUDING THE GULF OF TEHUANTEPEC…N TO NE WINDS 20 TO
25 KT. SEAS 8 TO 10 FT.
.24 HOUR FORECAST LITTLE CHANGE.
.42 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS
LESS THAN 8 FT.
.24 HOUR FORECAST BROAD LOW PRES NEAR 13.5N111.5W 1008 MB.
WITHIN 13N111W TO 13N112W TO 12N112W TO 11N110W TO 11N108W TO
12N108W TO 13N111W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN W TO
NW SWELL.
.48 HOUR FORECAST BROAD LOW PRES NEAR 13.5N113.5W 1007 MB.
WITHIN 12N111W TO 13N112W TO 12N115W TO 13N118W TO 11N118W TO
10N114W TO 12N111W WINDS 20 KT OR LESS. SEAS 8 TO 11 FT IN W TO
NW SWELL.
.REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.
CONVECTION VALID AT 1820 UTC WED AUG 21…
.HURRICANE GILMA…NUMEROUS MODERATE TO STRONG WITHIN 150 NM OF
CENTER…EXCEPT 270 NM SW QUADRANT.
.LOW PRES…EP91…NUMEROUS MODERATE SCATTERED STRONG WITHIN 300
NM SW SEMICIRCLE.
.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH…
MONSOON TROUGH FROM 09N84W TO 16N114W THEN RESUMES WELL W OF
GILMA FROM 16.5N131W TO LOW PRES…EP91…NEAR 15.5N134.5W…TO
BEYOND 10N140W. SCATTERED MODERATE ISOLATED STRONG FROM 04N TO
10N BETWEEN 77W AND 87W…AND FROM 06N TO 14N BETWEEN 89W AND
95W. WIDELY SCATTERED MODERATE FROM 06N TO 17N BETWEEN 98W AND
105W.
.FORECASTER LEWITSKY. NATIONAL HURRICANE CENTER.
NATIONAL WEATHER SERVICE HONOLULU HI
NORTH PACIFIC EQUATOR TO 30N BETWEEN 140W AND 160E
SYNOPSIS VALID 1800 UTC AUG 21 2024.
24 HOUR FORECAST VALID 1800 UTC AUG 22 2024.
48 HOUR FORECAST VALID 1800 UTC AUG 23 2024.
.WARNINGS.
…GALE WARNING…
.24 HOUR FORECAST…PSBL TRPCL CYCLONE…LOW NEAR 16N141W 1004
MB. WINDS 30 TO 40 KT AND SEAS 12 TO 14 FT FROM 16N TO 20N BETWEEN
148W AND 154W.
.48 HOUR FORECAST…PSBL TRPCL CYCLONE…LOW 16N146W 1001 MB.
WINDS 40 TO 50 KT AND SEAS 12 FT TO 17 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 28N180W 21N179W MOVING W 15 KT. ISOLATED MODERATE TSTMS
BETWEEN 170W AND TROUGH.
.24 HOUR FORECAST TROUGH 30N175E 27N176E.
.48 HOUR FORECAST TROUGH 30N166E 25N165E.
.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.
.SEAS 8 TO 9 FT FROM 11N TO 20N E OF 163W.
.24 HOUR FORECAST SEAS 8 TO 9 FT FROM 10N TO 20N BETWEEN 151W AND
170W.
.48 HOUR FORECAST SEAS 8 TO 9 FT FROM 10N TO 17N BETWEEN 160W AND
174W.
.REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS 8 FT OR LESS.
.MONSOON TROUGH 10N140W 08N153W. ISOLATED MODERATE TSTMS
WITHIN 120 NM S OF TROUGH.
.ITCZ 09N154W 08N167W 10N171W 09N170E 12N163E. SCATTERED MODERATE
TO LOCALLY STRONG TSTMS WITHIN 300 NM OF ITCZ BETWEEN 175W AND
172E. ELSEWHERE ISOLATED MODERATE TSTMS WITHIN 210 NM OF ITCZ.
.NUMEROUS MODERATE TO LOCALLY STRONG TSTMS FROM 20N TO 27N BETWEEN
170E AND 162E.
¤¤
.FORECASTER M BALLARD. HONOLULU HI.
UUID 9B4574CC-6014-11EF-AD27-0AFB0B260000 TX 1
