738  
NOUS43 KDMX 260251  
PNSDMX  
IAZ004>006-015-016-023>025-261500-  
 
PUBLIC INFORMATION STATEMENT  
NATIONAL WEATHER SERVICE DES MOINES IA  
951 PM CDT MON MAY 25 2020  
   
..NWS DAMAGE SURVEY FOR 05/25/2020 TORNADO EVENT
 
 
   
OVERVIEW
 
A BRIEF TORNADO OCCURRED ACROSS THE CITY  
OF JOHNSTON MONDAY EVENING, MAINLY PRODUCING TREE  
DAMAGE.  
   
JOHNSTON TORNADO
 
 
RATING: EF-1  
ESTIMATED PEAK WIND: 95 MPH  
PATH LENGTH /STATUTE/: 1.6 MILES  
PATH WIDTH /MAXIMUM/: 50 YARDS  
FATALITIES: 0  
INJURIES: 0  
 
START DATE: MAY 25, 2020  
START TIME: 626 PM CDT  
START LOCATION: JOHNSTON IOWA NEAR TERRA PARK  
 
END DATE: MAY 25, 2020  
END TIME: 629 PM CDT  
END LOCATION: JOHNSTON IOWA NEAR DEWEY PARK  
 
EF SCALE: THE ENHANCED FUJITA SCALE CLASSIFIES  
TORNADOES INTO THE FOLLOWING CATAGORIES.  
 
EF0...WEAK......65 TO 85 MPH  
EF1...WEAK......86 TO 110 MPH  
EF2...STRONG....111 TO 135 MPH  
EF3...STRONG....136 TO 165 MPH  
EF4...VIOLENT...166 TO 200 MPH  
EF5...VIOLENT...>200 MPH  
 
NOTE:  
THE INFORMATION IN THIS STATEMENT IS PRELIMINARY AND SUBJECT TO  
CHANGE PENDING FINAL REVIEW OF THE EVENT AND PUBLICATION IN  
NWS STORM DATA.  
 

 
 
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