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  • » NWS
    • » CPHC Home Page
      • » Wind speed probabilities

FOPA14 PHFO 192032
PWSCP4

TROPICAL DEPRESSION GUILLERMO WIND SPEED PROBABILITIES NUMBER  31   
NWS CENTRAL PACIFIC HURRICANE CENTER HONOLULU HI   EP102009         
1100 am HST Wed Aug 19 2009
                                                                    
AT 2100Z THE CENTER OF TROPICAL DEPRESSION GUILLERMO WAS LOCATED    
NEAR LATITUDE 30.8 NORTH...LONGITUDE 155.4 WEST WITH MAXIMUM        
SUSTAINED WINDS NEAR 30 KTS...35 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   8pm Wed 8am Thu 8pm Thu 8am Fri 8am Sat 8am Sun 8am Mon
FORECAST HOUR   12      24      36      48      72      96     120  
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
DISSIPATED       3      17      23      NA      NA      NA      NA
TROP DEPRESSION 67      61      51      NA      NA      NA      NA
TROPICAL STORM  31      21      26      NA      NA      NA      NA
HURRICANE        X       X       1      NA      NA      NA      NA
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
HUR CAT 1        X       X       1      NA      NA      NA      NA
HUR CAT 2        X       X       X      NA      NA      NA      NA
HUR CAT 3        X       X       X      NA      NA      NA      NA
HUR CAT 4        X       X       X      NA      NA      NA      NA
HUR CAT 5        X       X       X      NA      NA      NA      NA
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
FCST MAX WIND   30KT    25KT    25KT    NA      NA      NA      NA  
                                                                    
                                                                    
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           
        18Z WED 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       8am Wed 8pm Wed 8am Thu 8pm Thu 8am Fri 8am Sat 8am Sun
PERIODS         TO      TO      TO      TO      TO      TO      TO  
             8pm Wed 8am Thu 8pm Thu 8am Fri 8am Sat 8am Sun 8am Mon
                                                                    
FORECAST HOUR    (12)   (24)    (36)    (48)    (72)    (96)   (120)
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 
LOCATION       KT                                                   
                                                                    
35N 160W       34  X   1( 1)   5( 6)   X( 6)   X( 6)   X( 6)   X( 6)
 
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