772  
NOUS46 KPQR 200651  
PNSPQR  
ORZ001>008-010>016-WAZ019>022-039-040-045-046-201900-  
 
PUBLIC INFORMATION STATEMENT  
NATIONAL WEATHER SERVICE PORTLAND OR  
1151 PM PDT TUE SEP 19 2017  
   
..EF0 TORNADO CONFIRMED NEAR LACOMB OR
 
 
.LACOMB TORNADO  
 
EF SCALE RATING: EF0  
ESTIMATED PEAK WIND: 65-75 MPH  
PATH LENGTH (MI): 0.23 MILES  
PATH WIDTH (MAX): 150 FEET  
FATALITIES: 0  
INJURIES: 0  
 
START DATE: 9/20/2017  
START TIME: 1:07 PM  
START LOCATION: 2 NE LACOMB  
START LAT/LON: 44.592/-122.704  
 
END DATE: 9/20/2017  
END TIME: 1:08 PM  
END LOCATION: 2 NE LACOMB  
END LAT/LON: 44.592/-122.696  
 
SURVEY SUMMARY: FIVE FARM BUILDINGS WERE DAMAGED ALONG GREEN  
MOUNTAIN DRIVE. A MAJORITY OF THE DAMAGE WAS LIMITED TO THE  
REMOVAL OF METAL AND FABRIC ROOFS, ALTHOUGH A FEW WOODEN TRUSSES  
WERE BROKEN AS WELL. TWO POWER POLES AND SEVERAL TREE LIMBS WERE  
DOWNED IN THE AREA.  
 
EF SCALE: THE ENHANCED FUJITA SCALE CLASSIFIES TORNADOES INTO THE  
FOLLOWING CATEGORIES.  
 
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:  
INFORMATION IN THIS STATEMENT IS PRELIMINARY AND SUBJECT TO CHANGE  
PENDING FINAL REVIEW OF THE EVENT AND PUBLICATION IN NWS STORM  
DATA.  
 

 
 
/BENTLEY  
 
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