Table 1.
NRC model of percent damage area by EF rating.
Redrafted from Table 3-1 in Ramsdell and Rishel [10].
Fig 1.
Distribution of total kinetic energy (TKE).
TKE is computed for each tornado in the SPC database over the period 2007–2013.
Table 2.
The rankings are over the period 2007–2013. DPI is divided by square km and TDI is expressed in units of mass-specific energy times area.
Table 3.
Correlations between indexes of destruction and casualties and losses.
The indexes include the total kinetic energy (TKE), the destructive potential index (DPI), and the tornado destruction index (TDI). The 90% confidence intervals are shown in parentheses.
Fig 2.
Average tornado energy by EF rating category.
Fig 3.
Top ten days ranked by daily TKE.
The number of tornadoes is used as a color fill on the bars. Tornado counts are listed to the right of each bar.
Fig 4.
Daily aggregated tornado energy by year.
Fig 5.
Annually aggregated tornado energy.
Tornado counts are listed to the right of each bar.
Fig 6.
Tornado energy and frequency by month.
Fig 7.
Tornado energy by state.