Discriminating EF4 and EF5 tornado damage

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F4 207 – 260 mph Devastating damage. Well-constructed houses leveled; structures with weak foundations blown away some distance; cars thrown and large missiles generated. F5 >260 mph Incredible damage. Strong frame houses leveled off foundations and swept away; automobile-sized missiles fly through the air in excess of 100 meters (109 yds); trees debarked; incredible phenomena will occur. Note, terms like well “constructed” and “strong” are used but what do they mean?
Red: expected wind speed ≥ 200 mph blue: max wind speed ≥ 200 mph Green: max wind ≥ 167 ≤ 199 mph Black, max wind speed < 167 mph 221 mph 224 mph 203 mph 201 mph 200 mph 205 mph 217 mph 205 mph Houses: The only DI with a debris blown away DOD can be EF5
Page 1: Corresponding author contact: James
Page 5 and 6: Multiple candidate houses swept cle
Page 7 and 8: • Any debris above basement swept
Page 9 and 10: Slabbed apartments? Slabbed clubhou
Page 11 and 12: Apartments, Condos, Townhouses Almo
Page 13 and 14: Surveyors rating Estimated wind Rea
Page 15 and 16: Maximum DOD with anchored sill plat
Page 17 and 18: Shrubs look in good condition. Gras
Page 19 and 20: Philadelphia, MS 2011 Apr 27 Photo
Page 21 and 22: Bridge Creek, OK 1999-05-05 Photo b
Page 23 and 24: 1999-05-04 Bridge Creek, OK Jim LaD
Page 25 and 26: Surveyor A Surveyor B EF4 EF5

Discriminating EF4 and EF5 tornado damage

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