May 21, 2011
Target: Ada, Oklahoma

Previous day (May 20) near Perry, Oklahoma... Watching late afternoon convection in southern Kansas.

Prestorm softball as the HailSTONE project awaited convection.

This supercell near Ada produced a couple brief tornadoes.

Tornado near Ada, Oklahoma

Structure of the supercell which spawned a couple brief torndoes near Ada, Oklahoma.

Structure of the supercell which spawned a couple brief torndoes near Ada, Oklahoma.

Tornado near Ada, Oklahoma