AzShear product for EOX, showing higher elevation rotation, was strong for this cell as it was getting organized.  MXX was lower, but the merged shear product picked up on the high value.

Other Dual Pol factors indicated the supercell was starting to get ready to drop a TOR…with ZDR arc forming on the MXX radar.

A few minutes later, the MXX AzShear on the base tilt still didn’t show the high values until right at tornado time.

Then at time of touchdown, it showed a better max in the lowest tilt.

The merged 0-2km Azshear product then cycled down after that max, despite continued higher values from the EOX radar…in fact the trend was getting stronger from that radar, with peak values near 0.03 at touchdown time.  Sampling indicated the AzShear on the base tilt was at 1.7-1.8 km AGL at this time, so I would think it still would factor into the 0-2km AzShear product.

Charley