FOPA14 PHFO 181445
PWSCP4
TROPICAL STORM GUILLERMO WIND SPEED PROBABILITIES NUMBER 26
NWS CENTRAL PACIFIC HURRICANE CENTER HONOLULU HI EP102009
500 am HST Tue Aug 18 2009
AT 1500Z THE CENTER OF TROPICAL STORM GUILLERMO WAS LOCATED NEAR
LATITUDE 25.7 NORTH...LONGITUDE 149.9 WEST WITH MAXIMUM SUSTAINED
WINDS NEAR 40 KTS...45 MPH.
Z INDICATES COORDINATED UNIVERSAL TIME (GREENWICH)
PACIFIC DAYLIGHT TIME (PDT)...SUBTRACT 7 HOURS FROM Z TIME
HAWAIIAN STANDARD TIME (HST)...SUBTRACT 10 HOURS FROM Z TIME
I. MAXIMUM WIND SPEED (INTENSITY) PROBABILITY TABLE
CHANCES THAT THE MAXIMUM SUSTAINED (1-MINUTE AVERAGE) WIND SPEED OF
THE TROPICAL CYCLONE WILL BE WITHIN ANY OF THE FOLLOWING CATEGORIES
AT EACH OFFICIAL FORECAST TIME DURING THE NEXT 5 DAYS.
PROBABILITIES ARE GIVEN IN PERCENT. X INDICATES PROBABILITIES LESS
THAN 1 PERCENT.
- - - MAXIMUM WIND SPEED (INTENSITY) PROBABILITIES - - -
VALID TIME 2pm Tue 2am Wed 2pm Wed 2am Thu 2am Fri 2am Sat 2am Sun
FORECAST HOUR 12 24 36 48 72 96 120
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
DISSIPATED X 4 9 11 22 31 41
TROP DEPRESSION 14 42 38 36 38 38 36
TROPICAL STORM 84 52 49 47 36 29 22
HURRICANE 2 2 4 5 3 2 1
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
HUR CAT 1 2 2 4 4 3 2 1
HUR CAT 2 X X X 1 X X X
HUR CAT 3 X X X X X X X
HUR CAT 4 X X X X X X X
HUR CAT 5 X X X X X X X
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
FCST MAX WIND 40KT 35KT 35KT 35KT 30KT 25KT 20KT
II. WIND SPEED PROBABILITY TABLE FOR SPECIFIC LOCATIONS
CHANCES OF SUSTAINED (1-MINUTE AVERAGE) WIND SPEEDS OF AT LEAST
...34 KT (39 MPH)...
...50 KT (58 MPH)...
...64 KT (74 MPH)...
FOR LOCATIONS AND TIME PERIODS DURING THE NEXT 5 DAYS
PROBABILITIES FOR LOCATIONS ARE GIVEN AS IP(CP) WHERE
IP IS THE PROBABILITY OF THE EVENT BEGINNING DURING
AN INDIVIDUAL TIME PERIOD (INDIVIDUAL PROBABILITY)
(CP) IS THE PROBABILITY OF THE EVENT OCCURRING BETWEEN
12Z TUE AND THE FORECAST HOUR (CUMULATIVE PROBABILITY)
PROBABILITIES ARE GIVEN IN PERCENT
X INDICATES PROBABILITIES LESS THAN 1 PERCENT
PROBABILITIES FOR 34 KT AND 50 KT ARE SHOWN AT A GIVEN LOCATION WHEN
THE 5-DAY CUMULATIVE PROBABILITY IS AT LEAST 3 PERCENT.
PROBABILITIES FOR 64 KT ARE SHOWN WHEN THE 5-DAY CUMULATIVE
PROBABILITY IS AT LEAST 1 PERCENT.
- - - - WIND SPEED PROBABILITIES FOR SELECTED LOCATIONS - - - -
FROM FROM FROM FROM FROM FROM FROM
TIME 2am Tue 2pm Tue 2am Wed 2pm Wed 2am Thu 2am Fri 2am Sat
PERIODS TO TO TO TO TO TO TO
2pm Tue 2am Wed 2pm Wed 2am Thu 2am Fri 2am Sat 2am Sun
FORECAST HOUR (12) (24) (36) (48) (72) (96) (120)
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
LOCATION KT
30N 160W 34 X 1( 1) 20(21) 12(33) X(33) X(33) X(33)
30N 160W 50 X X( X) 2( 2) 3( 5) X( 5) X( 5) X( 5)
30N 160W 64 X X( X) 1( 1) X( 1) X( 1) X( 1) X( 1)
35N 160W 34 X X( X) 1( 1) 1( 2) 1( 3) X( 3) X( 3)
30N 175W 34 X X( X) X( X) X( X) X( X) 4( 4) 4( 8)
MIDWAY 34 X X( X) X( X) X( X) X( X) 1( 1) 2( 3)
$$
FORECASTER DONALDSON