Mesoscale convective systems - Severe Convective Storms and Tornadoes: Observations and Dynamics - page 275

(a)
Figure 5.11. (a) Symmetric mesoscale convective systems (top) on October 26, 2010, as
depicted by the Cleveland, OH WSR-88D radar and (bottom) on May 12, 2011 in south
Texas, as depicted by WSR-88D radars. (b) Asymmetric mesoscale convective system on June
18, 2010, as depicted by the WSR-88D radar at Quad Cities, IA. (c) Idealized depiction of
symmetric and asymmetric mesoscale convective systems (from Houze et al., 1990).