Table 1. Error distance between tornado location and radar-indicated circulation center 
as a function of distance from radar.
<table border=1>
<tr><th>Distance from radar
    <th>Number of radar data points
    <th>Mean Error
    <th>% of radar signatures with error of 0.5 miles or greater
    <th>% of radar signatures with error of 1 mile or greater
<tr><td>0-20 miles
    <td><center>52
    <td><center>0.2 miles
    <td><center>13%
    <td><center>6%
<tr><td>20-50 miles
    <td><center>128
    <td><center>0.6 miles
    <td><center>51%
    <td><center>22%
<tr><td>50-80 miles
    <td><center>120
    <td><center>0.8 miles
    <td><center>63%
    <td><center>33%
<tr><td>80-110 miles
    <td><center>105
    <td><center>1.1 miles
    <td><center>79%
    <td><center>49%
<tr><td>110-140 miles
    <td><center>141
    <td><center>1.5 miles
    <td><center>79%
    <td><center>67%
<tr><th>Total
    <th>546
    <th>0.9 miles
    <th>63%
    <th>39%
</table>