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Tropical Storm Sam Wind Speed Probabilities


000
FONT13 KNHC 231456
PWSAT3

TROPICAL STORM SAM WIND SPEED PROBABILITIES NUMBER   4              
NWS NATIONAL HURRICANE CENTER MIAMI FL       AL182021               
1500 UTC THU SEP 23 2021                                            

AT 1500Z THE CENTER OF TROPICAL STORM SAM WAS LOCATED NEAR LATITUDE 
10.9 NORTH...LONGITUDE 38.1 WEST WITH MAXIMUM SUSTAINED WINDS NEAR  
45 KTS...50 MPH...85 KM/H.                                          

Z INDICATES COORDINATED UNIVERSAL TIME (GREENWICH)                  
   ATLANTIC STANDARD TIME (AST)...SUBTRACT 4 HOURS FROM Z TIME      
   EASTERN  DAYLIGHT TIME (EDT)...SUBTRACT 4 HOURS FROM Z TIME      
   CENTRAL  DAYLIGHT TIME (CDT)...SUBTRACT 5 HOURS FROM Z TIME      

WIND SPEED PROBABILITY TABLE FOR SPECIFIC LOCATIONS                 

CHANCES OF SUSTAINED (1-MINUTE AVERAGE) WIND SPEEDS OF AT LEAST     
   ...34 KT (39 MPH... 63 KM/H)...                                  
   ...50 KT (58 MPH... 93 KM/H)...                                  
   ...64 KT (74 MPH...119 KM/H)...                                  
FOR LOCATIONS AND TIME PERIODS DURING THE NEXT 5 DAYS               

PROBABILITIES FOR LOCATIONS ARE GIVEN AS OP(CP) WHERE               
    OP  IS THE PROBABILITY OF THE EVENT BEGINNING DURING            
        AN INDIVIDUAL TIME PERIOD (ONSET PROBABILITY)               
   (CP) IS THE PROBABILITY OF THE EVENT OCCURRING BETWEEN           
        12Z THU 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 34...50...64 KT SHOWN WHEN THE 5-DAY              
64-KT CUMULATIVE PROBABILITY IS AT LEAST 1 PERCENT.                 


  - - - - WIND SPEED PROBABILITIES FOR SELECTED LOCATIONS - - - -   

               FROM    FROM    FROM    FROM    FROM    FROM    FROM 
  TIME       12Z THU 00Z FRI 12Z FRI 00Z SAT 12Z SAT 12Z SUN 12Z MON
PERIODS         TO      TO      TO      TO      TO      TO      TO  
             00Z FRI 12Z FRI 00Z SAT 12Z SAT 12Z SUN 12Z MON 12Z TUE

FORECAST HOUR    (12)   (24)    (36)    (48)    (72)    (96)   (120)
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 
LOCATION       KT                                                   

BARBUDA        34  X   X( X)   X( X)   X( X)   X( X)   X( X)   4( 4)

ANTIGUA        34  X   X( X)   X( X)   X( X)   X( X)   X( X)   3( 3)

GUADELOUPE     34  X   X( X)   X( X)   X( X)   X( X)   X( X)   3( 3)

DOMINICA       34  X   X( X)   X( X)   X( X)   X( X)   X( X)   3( 3)

MARTINIQUE     34  X   X( X)   X( X)   X( X)   X( X)   X( X)   3( 3)

BARBADOS       34  X   X( X)   X( X)   X( X)   X( X)   X( X)   3( 3)

$$                                                                  
FORECASTER PAPIN                                                    



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