986  
FONT12 KNHC 222042  
PWSAT2  
 
TROPICAL DEPRESSION BETA WIND SPEED PROBABILITIES NUMBER 21  
NWS NATIONAL HURRICANE CENTER MIAMI FL AL222020  
2100 UTC TUE SEP 22 2020  
 
AT 2100Z THE CENTER OF TROPICAL DEPRESSION BETA WAS LOCATED NEAR  
LATITUDE 29.0 NORTH...LONGITUDE 96.3 WEST WITH MAXIMUM SUSTAINED  
WINDS NEAR 25 KTS...30 MPH...45 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  
18Z TUE 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 18Z TUE 06Z WED 18Z WED 06Z THU 18Z THU 18Z FRI 18Z SAT  
PERIODS TO TO TO TO TO TO TO  
06Z WED 18Z WED 06Z THU 18Z THU 18Z FRI 18Z SAT 18Z SUN  
 
FORECAST HOUR (12) (24) (36) (48) (72) (96) (120)  
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -  
LOCATION KT  
 
JACKSON MS 34 X X( X) 1( 1) 3( 4) 1( 5) X( 5) X( 5)  
 
BATON ROUGE LA 34 X 1( 1) 2( 3) X( 3) X( 3) X( 3) X( 3)  
 
ALEXANDRIA LA 34 X 2( 2) 4( 6) 1( 7) X( 7) X( 7) X( 7)  
 
LAFAYETTE LA 34 X 2( 2) 2( 4) X( 4) X( 4) X( 4) X( 4)  
 
NEW IBERIA LA 34 X 2( 2) 2( 4) X( 4) X( 4) X( 4) X( 4)  
 
FORT POLK LA 34 X 3( 3) 3( 6) X( 6) X( 6) X( 6) X( 6)  
 
LAKE CHARLES 34 X 5( 5) 3( 8) X( 8) X( 8) X( 8) X( 8)  
 
CAMERON LA 34 X 6( 6) 1( 7) X( 7) X( 7) X( 7) X( 7)  
 
JASPER TX 34 X 4( 4) 1( 5) X( 5) X( 5) X( 5) X( 5)  
 
KOUNTZE TX 34 X 6( 6) 1( 7) X( 7) X( 7) X( 7) X( 7)  
 
PORT ARTHUR TX 34 X 6( 6) 2( 8) X( 8) X( 8) X( 8) X( 8)  
 
GALVESTON TX 34 3 5( 8) X( 8) X( 8) X( 8) X( 8) X( 8)  
 
HOUSTON TX 34 4 2( 6) X( 6) X( 6) X( 6) X( 6) X( 6)  
 
FREEPORT TX 34 5 2( 7) X( 7) X( 7) X( 7) X( 7) X( 7)  
 
HIGH ISLAND TX 34 2 6( 8) X( 8) X( 8) X( 8) X( 8) X( 8)  
 
MATAGORDA TX 34 4 1( 5) X( 5) X( 5) X( 5) X( 5) X( 5)  
 

 
FORECASTER STEWART  
 
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