Atlantic Basin Tropical Cyclones

Hurricane Sam Wind Speed Probabilities


000
FONT13 KNHC 240831
PWSAT3

HURRICANE SAM WIND SPEED PROBABILITIES NUMBER   7                   
NWS NATIONAL HURRICANE CENTER MIAMI FL       AL182021               
0900 UTC FRI SEP 24 2021                                            

AT 0900Z THE CENTER OF HURRICANE SAM WAS LOCATED NEAR LATITUDE 11.5 
NORTH...LONGITUDE 42.2 WEST WITH MAXIMUM SUSTAINED WINDS NEAR 65 KTS
...75 MPH...120 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           
        06Z FRI 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       06Z FRI 18Z FRI 06Z SAT 18Z SAT 06Z SUN 06Z MON 06Z TUE
PERIODS         TO      TO      TO      TO      TO      TO      TO  
             18Z FRI 06Z SAT 18Z SAT 06Z SUN 06Z MON 06Z TUE 06Z WED

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

SAINT MAARTEN  34  X   X( X)   X( X)   X( X)   X( X)   X( X)   4( 4)

SABA           34  X   X( X)   X( X)   X( X)   X( X)   X( X)   3( 3)

ST EUSTATIUS   34  X   X( X)   X( X)   X( X)   X( X)   X( X)   5( 5)

ST KITTS-NEVIS 34  X   X( X)   X( X)   X( X)   X( X)   X( X)   5( 5)

BARBUDA        34  X   X( X)   X( X)   X( X)   X( X)   X( X)   8( 8)

ANTIGUA        34  X   X( X)   X( X)   X( X)   X( X)   1( 1)   6( 7)

GUADELOUPE     34  X   X( X)   X( X)   X( X)   X( X)   1( 1)   6( 7)

DOMINICA       34  X   X( X)   X( X)   X( X)   X( X)   X( X)   6( 6)

MARTINIQUE     34  X   X( X)   X( X)   X( X)   X( X)   1( 1)   5( 6)

SAINT LUCIA    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)   2( 2)   3( 5)

$$                                                                  
FORECASTER CANGIALOSI                                               



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