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      • » Wind speed probabilities

FOPA11 PHFO 010942 RRA
PWSCP1

TROPICAL STORM LANA WIND SPEED PROBABILITIES NUMBER   8             
NWS CENTRAL PACIFIC HURRICANE CENTER HONOLULU HI   EP062009         
1100 pm HST Fri Jul 31 2009
                                                                    
AT 0900Z THE CENTER OF TROPICAL STORM LANA WAS LOCATED NEAR LATITUDE
14.4 NORTH...LONGITUDE 150.0 WEST WITH MAXIMUM SUSTAINED WINDS NEAR 
45 KTS...50 MPH.                                         
                                                                    
Z INDICATES COORDINATED UNIVERSAL TIME (GREENWICH)                  
   PACIFIC  STANDARD TIME (PST)...SUBTRACT  8 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   8am Sat 8pm Sat 8am Sun 8pm Sun 8pm Mon 8pm Tue 8pm Wed
FORECAST HOUR   12      24      36      48      72      96     120  
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
DISSIPATED       X       2      10      20      32      41      41
TROP DEPRESSION  7      29      41      42      40      37      36
TROPICAL STORM  91      66      46      35      26      21      22
HURRICANE        3       3       3       3       2       1       1
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
HUR CAT 1        3       3       3       3       2       1       1
HUR CAT 2        X       X       X       X       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   45KT    40KT    35KT    30KT    25KT    20KT    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           
        06Z SAT 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       8pm Fri 8am Sat 8pm Sat 8am Sun 8pm Sun 8pm Mon 8pm Tue
PERIODS         TO      TO      TO      TO      TO      TO      TO  
             8am Sat 8pm Sat 8am Sun 8pm Sun 8pm Mon 8pm Tue 8pm Wed
                                                                    
FORECAST HOUR    (12)   (24)    (36)    (48)    (72)    (96)   (120)
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 
LOCATION       KT                                                   
                                                                    
$$                                                                  
FORECASTER WROE/HOUSTON