Tornado Reports Graphic. 
If you  compare this to the SPC tornado prediction maps you see how difficult it is to predict tornadoes and how they changed their predictions throughout the day.

Now look at the SPC tornado prediction maps from the day.  If you used just this for determining your target location for chasing it would have made it difficult to know where to go.
0105 graphic    0600 Graphic  1256 Graphic   1630 Graphic     1953 Graphic

Now look at the soundings from the
NATIONAL WEATHER SERVICE NORTH PLATTE NE - Looks very interesting when you see the low level shear.
1200z am LBF     0000z pm LBF

Here are the surface maps that add more light to the days tornadoes.
srfc1341    srfc1627    srfc1932    srfc2202   srfc0110

The Srh shear numbers for the day.
Upper air maps were as follows at 0000z
700mb00   850mb00    925mb00
 

Predicting tornado touchdown locations hours ahead is very difficult as this day has shown.