<Tr> <Td> EF5 </Td> <Td>> 200 </Td> <Td>> 322 </Td> <Td> Total destruction of buildings . <P> Strong - framed, well - built houses leveled off foundations are swept away; steel - reinforced concrete structures are critically damaged; tall buildings collapse or have severe structural deformations; some cars, trucks, and train cars can be thrown approximately 1 mile (1.6 km). </P> </Td> <Td> </Td> </Tr> <P> Strong - framed, well - built houses leveled off foundations are swept away; steel - reinforced concrete structures are critically damaged; tall buildings collapse or have severe structural deformations; some cars, trucks, and train cars can be thrown approximately 1 mile (1.6 km). </P> <P> The EF scale currently has 28 damage indicators (DI), or types of structures and vegetation, each with a varying number of degrees of damage (DoD). Larger degrees of damage done to the damage indicators correspond to higher wind speeds . The links in the right column of the following table describe the degrees of damage for the damage indicators listed in each row . </P> <Table> <Tr> <Th> DI No . </Th> <Th> Damage Indicator (DI) </Th> <Th> Degrees of Damage (DOD) </Th> </Tr> <Tr> <Td> </Td> <Td> Small Barns or Farm Outbuildings (SBO) </Td> <Td> 8 </Td> </Tr> <Tr> <Td> </Td> <Td> One - or Two - Family Residences (FR12) </Td> <Td> 10 </Td> </Tr> <Tr> <Td> </Td> <Td> Manufactured Home--Single Wide (MHSW) </Td> <Td> 9 </Td> </Tr> <Tr> <Td> </Td> <Td> Manufactured Home--Double Wide (MHDW) </Td> <Td> 12 </Td> </Tr> <Tr> <Td> 5 </Td> <Td> Apartments, Condos, Townhouses (3 stories or less) (ACT) </Td> <Td> 6 </Td> </Tr> <Tr> <Td> 6 </Td> <Td> Motel (M) </Td> <Td> 10 </Td> </Tr> <Tr> <Td> 7 </Td> <Td> Masonry Apartment or Motel Building (MAM) </Td> <Td> 7 </Td> </Tr> <Tr> <Td> 8 </Td> <Td> Small Retail Building (Fast Food Restaurants) (SRB) </Td> <Td> 8 </Td> </Tr> <Tr> <Td> 9 </Td> <Td> Small Professional Building (Doctor's Office, Branch Banks) (SPB) </Td> <Td> 9 </Td> </Tr> <Tr> <Td> 10 </Td> <Td> Strip Mall (SM) </Td> <Td> 9 </Td> </Tr> <Tr> <Td> 11 </Td> <Td> Large Shopping Mall (LSM) </Td> <Td> 9 </Td> </Tr> <Tr> <Td> 12 </Td> <Td> Large, Isolated Retail Building (K - Mart, Wal - Mart) (LIRB) </Td> <Td> 7 </Td> </Tr> <Tr> <Td> 13 </Td> <Td> Automobile Showroom (ASR) </Td> <Td> 8 </Td> </Tr> <Tr> <Td> 14 </Td> <Td> Automobile Service Building (ASB) </Td> <Td> 8 </Td> </Tr> <Tr> <Td> 15 </Td> <Td> Elementary School (Single Story; Interior or Exterior Hallways) (ES) </Td> <Td> 10 </Td> </Tr> <Tr> <Td> 16 </Td> <Td> Junior or Senior High School (JHSH) </Td> <Td> 11 </Td> </Tr> <Tr> <Td> 17 </Td> <Td> Low - Rise Building (1--4 Stories) (LRB) </Td> <Td> 7 </Td> </Tr> <Tr> <Td> 18 </Td> <Td> Mid-Rise Building (5--20 Stories) (MRB) </Td> <Td> 10 </Td> </Tr> <Tr> <Td> 19 </Td> <Td> High - Rise Building (More than 20 Stories) (HRB) </Td> <Td> 10 </Td> </Tr> <Tr> <Td> 20 </Td> <Td> Institutional Building (Hospital, Government or University Building) (IB) </Td> <Td> 11 </Td> </Tr> <Tr> <Td> 21 </Td> <Td> Metal Building System (MBS) </Td> <Td> 8 </Td> </Tr> <Tr> <Td> 22 </Td> <Td> Service Station Canopy (SSC) </Td> <Td> 6 </Td> </Tr> <Tr> <Td> 23 </Td> <Td> Warehouse Building (Tilt - up Walls or Heavy - Timber Construction) (WHB) </Td> <Td> 7 </Td> </Tr> <Tr> <Td> 24 </Td> <Td> Electrical Transmission Lines (ETL) </Td> <Td> 6 </Td> </Tr> <Tr> <Td> 25 </Td> <Td> Free - Standing Towers (FST) </Td> <Td> </Td> </Tr> <Tr> <Td> 26 </Td> <Td> Free - Standing Light Poles, Luminary Poles, Flag Poles (FSP) </Td> <Td> </Td> </Tr> <Tr> <Td> 27 </Td> <Td> Trees: Hardwood (TH) </Td> <Td> 5 </Td> </Tr> <Tr> <Td> 28 </Td> <Td> Trees: Softwood (TS) </Td> <Td> 5 </Td> </Tr> </Table>

What's the wind speed of an f5 tornado