220  
FONT12 KNHC 080300  
PWSAT2  
TROPICAL STORM FRED WIND SPEED PROBABILITIES NUMBER 2  
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL AL072009  
0300 UTC TUE SEP 08 2009  
 
AT 0300Z THE CENTER OF TROPICAL STORM FRED WAS LOCATED NEAR LATITUDE  
11.8 NORTH...LONGITUDE 26.3 WEST WITH MAXIMUM SUSTAINED WINDS NEAR  
35 KTS...40 MPH...65 KM/HR.  
 
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  
 
 
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 12Z TUE 00Z WED 12Z WED 00Z THU 00Z FRI 00Z SAT 00Z SUN  
FORECAST HOUR 12 24 36 48 72 96 120  
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -  
DISSIPATED X 1 1 1 3 4 8  
TROP DEPRESSION 7 7 7 7 12 13 19  
TROPICAL STORM 89 77 64 52 52 49 46  
HURRICANE 5 15 28 41 32 34 26  
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -  
HUR CAT 1 4 13 24 29 24 24 20  
HUR CAT 2 X 1 3 8 6 7 5  
HUR CAT 3 1 1 1 3 3 2 2  
HUR CAT 4 X X X 1 1 1 X  
HUR CAT 5 X X X X X X X  
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -  
FCST MAX WIND 45KT 50KT 55KT 60KT 55KT 55KT 50KT  
 
 
II. WIND SPEED PROBABILITY TABLE FOR SPECIFIC LOCATIONS  
 
CHANCES OF SUSTAINED (1-MINUTE AVERAGE) WIND SPEEDS OF AT LEAST  
...34 KT (39 MPH... 63 KPH)...  
...50 KT (58 MPH... 93 KPH)...  
...64 KT (74 MPH...119 KPH)...  
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  
00Z 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 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 00Z TUE 12Z TUE 00Z WED 12Z WED 00Z THU 00Z FRI 00Z SAT  
PERIODS TO TO TO TO TO TO TO  
12Z TUE 00Z WED 12Z WED 00Z THU 00Z FRI 00Z SAT 00Z SUN  
 
FORECAST HOUR (12) (24) (36) (48) (72) (96) (120)  
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -  
LOCATION KT  
 

 
FORECASTER BRENNAN  
 
 
 
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