321  
FOPZ15 KNHC 270854  
PWSEP5  
 
TROPICAL STORM JOHN WIND SPEED PROBABILITIES NUMBER 18  
NWS NATIONAL HURRICANE CENTER MIAMI FL EP102024  
0900 UTC FRI SEP 27 2024  
 
AT 0900Z THE CENTER OF TROPICAL STORM JOHN WAS LOCATED NEAR LATITUDE  
17.8 NORTH...LONGITUDE 102.9 WEST WITH MAXIMUM SUSTAINED WINDS NEAR  
55 KTS...65 MPH...100 KM/H.  
 
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  
 
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  
 
BARRA NAVIDAD 34 1 9(10) 1(11) X(11) X(11) X(11) X(11)  
 
MANZANILLO 34 11 30(41) X(41) X(41) X(41) X(41) X(41)  
MANZANILLO 50 X 4( 4) X( 4) X( 4) X( 4) X( 4) X( 4)  
 
L CARDENAS 34 99 X(99) X(99) X(99) X(99) X(99) X(99)  
 

 
FORECASTER ROBERTS  
 
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