May 22, 2011 Joplin, Missouri Tornado

KSGL Radar22:38-22:48 GMT

Vanessa Almanza

Bounded Weak Echo Region

• Base-Reflectivity– 0.5– 1.5– 2.4– 3.4

0.5 Base-Reflectivity

1.5 Base Reflectivity

2.4 Base-Reflectivity

3.4 Base Reflectivity

Low-level Mesocyclone

Base Reflectivity Storm Relative Velocity

Mid level MesocycloneBase Reflectivity

Storm Relative Velocity

Digital Mesocyclone

Radar identification

Vertical Azimuth Display