FZPN02 KWBC 091700
HSFEPI
HIGH SEAS FORECAST FOR METAREA XII
NWS OCEAN PREDICTION CENTER WASHINGTON DC
1745 UTC SAT MAY 09 2009
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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 
SECURITE 
PACIFIC N OF 30N AND S OF 67N E OF A LINE FROM BERING STRAIT TO 
50N160E 
SYNOPSIS VALID 1200 UTC MAY 09. 
24 HOUR FORECAST VALID 1200 UTC MAY 10. 
48 HOUR FORECAST VALID 1200 UTC MAY 11. 
.WARNINGS. 
...GALE WARNING... 
.FROM 30N TO 43N BETWEEN 121W AND 129W NW TO N WINDS 25 TO 35 
KT. SEAS 9 TO 17 FT. 
.24 HOUR FORECAST FROM 30N TO 41N BETWEEN 121W AND 128W NW TO N 
WINDS TO 25 KT. SEAS 8 TO 12 FT. 
.48 HOUR FORECAST FROM 30N TO 38N BETWEEN 120W AND 126W NW TO N 
WINDS 20 TO 30 KT. SEAS 8 TO 12 FT. 
...GALE WARNING... 
.COMPLEX LOW WITH MEAN CENTER NEAR 38N145W 1017 MB MOVING NE 20 
KT. WITHIN 420 NM SE SEMICIRCLE WINDS 20 TO 30 KT. SEAS TO 10 
FT. .24 HOUR FORECAST MERGED LOW 44N136W 1009 MB. WITHIN 240 NM 
E QUADRANT AND 300 NM SW SEMICIRCLE WINDS 25 TO 35 KT. SEAS 8 TO 
12 FT. 
.48 HOUR FORECAST LOW 48N126W 1003 MB. FROM 42N TO 49N E OF 135W 
WINDS 20 TO 30 KT. SEAS 8 TO 14 FT. 
...GALE WARNING... 
.LOW 56N143W 1020 MB MOVING SE 10 KT. WINDS LESS THAN 25 KT. 
SEAS LESS THAN 8 FT. 
.24 HOUR FORECAST LOW 54N139W 1016 MB. FROM 50N TO 56N BETWEEN 
134W AND 145W WINDS TO 25 KT. SEAS TO 8 FT. 
.48 HOUR FORECAST LOW 51N135W 1006 MB. WITHIN 300 NM SW QUADRANT 
WINDS 25 TO 35 KT. SEAS 8 TO 13 FT. ALSO N OF 51N BETWEEN 136W 
AND 143W WINDS 20 TO 30 KT. SEAS TO 11 FT.
...GALE WARNING... 
.LOW 42N172W 1011 MB MOVING E 05 KT. WITHIN 360 NE SEMICIRCLE 
WINDS 20 TO 30 KT. SEAS 8 TO 11 FT. 
.12 HOUR FORECAST LOW 42N171W 1011 MB. WITHIN 360 NM NE 
SEMICIRCLE WINDS 25 TO 35 KT. SEAS 8 TO 13 FT.
.24 HOUR FORECAST LOW 42N169W 1009 MB. WITHIN 420 NM NE 
SEMICIRCLE WINDS 25 TO 35 KT. SEAS 9 TO 15 FT. ELSEWHERE FROM 
30N TO 40N BETWEEN 152W AND 165W WINDS 20 TO 30 KT. SEAS TO 9 FT.
.48 HOUR FORECAST LOW 42N163W 1003 MB. WITHIN 420 NM N 
SEMICIRCLE...AND WITHIN 420 NM E OF FRONT FROM LOW TO 39N154W TO 
164W WINDS 25 TO 40 KT. SEAS 10 TO 20 FT. ELSEWHERE FROM 30N TO 
50N BETWEEN 145W AND 175W WINDS TO 25 KT. SEAS TO 10 FT. 
...GALE WARNING... 
.LOW 43N163E 994 MB MOVING NE 15 KT. FROM 37N TO 47N BETWEEN 
172W AND 163E WINDS 25 TO 35 KT. SEAS 8 TO 12 FT. 
.24 HOUR FORECAST LOW 46N167E 1000 MB. N OF 46N BETWEEN 178E AND 
167E...AND WITHIN 300 NM E OF FRONT FROM LOW TO 35N173E WINDS 25 
TO 40 KT. SEAS 9 TO 17 FT. ELSEWHERE N OF 34N W OF 179E WINDS TO 
25 KT. SEAS TO 9 FT.
.48 HOUR FORECAST LOW JUST NW OF AREA 55N166E 1003 MB. N OF 47N 
BETWEEN 180W AND 169E WINDS 25 TO 35 KT. SEAS 10 TO 19 FT. 
...GALE WARNING... 
.N OF A LINE FROM 49N165E TO 56N177E S WINDS 25 TO 35 KT. SEAS 8 
TO 14 FT. 
.24 HOUR FORECAST CONDITIONS ABSORBED BY LOW 46N167E DESCRIBED 
ABOVE. 
.SYNOPSIS AND FORECAST. 
.FROM 30N TO 32N BETWEEN 179E AND 173E WINDS LESS THAN 25 KT. 
SEAS TO 8 FT. 
.24 HOUR FORECAST CONDITIONS DIMINISHED. 
.48 HOUR FORECAST NEW LOW 41N175E 1006 MB. FROM 38N TO 45N 
BETWEEN 179E AND 171E WINDS TO 25 KT. SEAS TO 9 FT. 
.FROM 40N TO 48N BETWEEN 140W AND 144W DENSE FOG OCCASIONALLY 
REDUCING VSBY BELOW 1 NM.
.24 HOUR FORECAST CONDITIONS IMPROVING.
.FROM 33N TO 48N BETWEEN 169E AND 161E AND FROM 48N TO 54N 
BETWEEN 177W AND 177E DENSE FOG OCCASIONALLY REDUCING VSBY BELOW 
1 NM. 
.24 HOUR FORECAST FROM 39N TO 48N BETWEEN 173E AND 166E AND FROM 
52N TO 56N BETWEEN 176W AND 180W DENSE FOG OCCASIONALLY REDUCING 
VSBY BELOW 1 NM. 
.48 HOUR FORECAST FROM 46N TO 52N BETWEEN 179E AND 173E DENSE 
FOG OCCASIONALLY REDUCING VSBY BELOW 1 NM. 
.HIGH 45N132W 1030 MB MOVING E 10 KT. 
.24 HOUR FORECAST HIGH 46N128W 1022 MB. 
.48 HOUR FORECAST HIGH DISSIPATED. 
.HIGH 51N132W 1030 MB NEARLY STATIONARY.
.24 HOUR FORECAST LITTLE CHANGE.
.48 HOUR FORECAST HIGH DISSIPATED.
.HIGH 34N136W 1027 MB MOVING E 05 KT...WILL TURN NW AFTER 24 
HOURS.
.24 HOUR FORECAST HIGH 35N134W 1026 MB.
.48 HOUR FORECAST HIGH 38N138W 1026 MB.
.HIGH 52N157W 1033 MB NEARLY STATIONARY. 
.24 HOUR FORECAST HIGH 51N157W 1034 MB. 
.48 HOUR FORECAST HIGH DISSIPATED. 
.HIGH 58N170W 1033 MB MOVING N 05 KT. 
.24 HOUR FORECAST HIGH 59N169W 1037 MB.
.48 HOUR FORECAST LITTLE CHANGE. 
.FORECASTER KELLS. OCEAN PREDICTION CENTER.
TROPICAL PREDICTION CENTER MIAMI FL
E PACIFIC FROM THE EQUATOR TO 30N E OF 140W
SYNOPSIS VALID 1200 UTC SAT MAY 09.
24 HOUR FORECAST VALID 1200 UTC SUN MAY 10.
48 HOUR FORECAST VALID 1200 UTC MON MAY 11.
.WARNINGS.
.NONE.
.SYNOPSIS AND FORECAST.
.N OF 24N BETWEEN 120W TO 128W AND FROM 22N TO 26N BETWEEN 128W 
AND 135W N WINDS 20 TO 25 KT. SEAS 8 TO 13 FT. ELSEWHERE N OF 
22N FROM 120W TO 135W N TO NE WINDS TO 20 KT. SEAS 8 TO 12 FT IN 
NW TO N SWELL. ELSEWHERE N OF 22N BETWEEN 111W TO 128W AND FROM 
10N TO 26N W OF 128W WINDS LESS THAN 20 KT. SEAS 8 TO 11 FT IN 
NW SWELL E OF 128W AND SEAS TO 9 FT IN NE SWELL W OF 128W.
.24 HOUR FORECAST N OF 27N BETWEEN 121W TO 130W N TO NE WINDS TO 
20 KT. SEAS TO 10 FT. ELSEWHERE N OF 24N E OF 133W TO LINE FROM 
24N120W TO 30N116W WINDS LESS THAN 20 KT. SEAS TO 9 FT IN NW TO 
N SWELL.
.48 HOUR FORECAST N OF 27N FROM 120W TO 127W WINDS LESS THAN 20 
KT. SEAS 8 FT IN NW SWELL.
.FROM 08N TO 14N W OF 135W NE WINDS TO 20 KT. SEAS TO 9 FT IN NE 
SWELL. ELSEWHERE FROM 07N TO 18N W OF 133W WINDS LESS THAN 20 
KT. SEAS TO 8 FT IN NE SWELL.
.24 HOUR FORECAST FROM 08N TO 12N W OF 127W NE TO E WINDS TO 20 
KT. SEAS TO 8 FT.
.36 HOUR FORECAST WINDS LESS THAN 20 KT. SEAS LESS THAN 8 FT.
.18 HOUR FORECAST E OF 89W FROM 10N TO 12N INCLUDING THE GULF OF 
PAPAGAYO...NE TO E WINDS 20 KT. SEAS LESS THAN 8 FT.
.24 HOUR FORECAST LITTLE CHANGE.
.48 HOUR FORECAST LITTLE CHANGE.
.REMAINDER OF AREA WINDS LESS THAN 20 KT. SEAS LESS THAN 8 FT.
.TROUGH 12N108W TO 04N111W. SCATTERED MODERATE WITHIN 120 NM E 
OF TROUGH FROM 11N AND 12N AND WITHIN 210 NM W OF TROUGH FROM 
05N TO 06N.
.SCATTERED MODERATE WITHIN 120 NM OF COAST OF COLOMBIA FROM 03N 
TO 06N.
.CONVECTION VALID 1245 UTC SAT MAY 09...
INTERTROPICAL CONVERGENCE ZONE...08N83W TO 07N91W TO 10N107W TO 
06N126W TO 07N140W. SCATTERED MODERATE ISOLATED STRONG WITHIN 
210 NM S OF AXIS BETWEEN 92W AND 95W AND WITHIN 120 NM N OF AXIS 
W OF 136W. 
.FORECASTER SCHAUER CLARK. TROPICAL PREDICTION CENTER.
NATIONAL WEATHER SERVICE HONOLULU HI
NORTH PACIFIC EQUATOR TO 30N BETWEEN 140W AND 160E
SYNOPSIS VALID 1200 UTC MAY 09 2009.
24 HOUR FORECAST VALID 1200 UTC MAY 10 2009.
48 HOUR FORECAST VALID 1200 UTC MAY 11 2009.
THIS SEGMENT OF THE HIGH SEAS FORECAST USES 1-MINUTE AVERAGE 
WINDS WHICH MAY BE HIGHER THAN 10-MINUTE AVERAGE WINDS. 
.WARNINGS. 
.NONE. 
.SYNOPSIS AND FORECAST. 
.LOW NEAR 27N165W 1015 MB MOVING NE SLOWLY. DISSIPATING FRONT 
FROM LOW THROUGH 27N155W TO 30N151W AND ALSO FROM LOW THROUGH 
24N171W 29N180W. ISOLATED TSTMS N OF 26N BETWEEN 163W AND 155W. 
.24 HOUR FORECAST LOW DISSIPATED. FRONT E OF LOW DISSIPATED. 
DISSIPATING FRONT W OF LOW THROUGH 30N163W TO 27N168W TO 
30N180W. 
.48 HOUR FORECAST FRONT DISSIPATED. 
.LOW 29N177E 1012 MB NEARLY STATIONARY. TROUGHS FROM LOW TO 
29N180E AND TO 28N167E. 
.24 HOUR FORECAST LOW AND TROUGH DISSIPATED. 
.COLD FRONT W OF FCST AREA FROM 30N158E TO 24N153E MOVING E TO 
13 KT. 
.24 HOUR FORECAST WEAKENING FRONT FROM 30N167E TO 25N160E. 
.48 HOUR FORECAST DISSIPATING FRONT FROM 30N179W TO 27N175E TO 
25N165E. 
.HIGH 21N170E 1015 MB NEARLY STATIONARY. RIDGES FROM HIGH 
THROUGH 21N180E TO 24N160W TO 30N144W...AND TO 22N160E. 
.24 HOUR FORECAST HIGH 1015 MB NEAR 21N165E. 
.48 HOUR FORECAST HIGH DISSIPATED. 
.WINDS 20 KT OR LESS ENTIRE AREA. 
.FROM 15N TO 07N BETWEEN 145W AND 160W SEAS 8 TO 9 FT. 
.24 HOUR FORECAST...SEAS 8 FT OR LESS ENTIRE AREA. 
.48 HOUR FORECAST...LITTLE CHANGE. 
.OTHERWISE...SEAS 8 FT OR LESS. 
.ITCZ 07N140W 07N163W 03N180W 04N168E. ISOLATED MODERATE TSTMS 
WITHIN 180 NM EITHER SIDE OF ITCZ. 
$$ 
.FORECASTER. HONOLULU HI.