1. Bow echo on 4 July 2004 at ~1230 UTC, as observed by the Springfield, Missouri (KSGF) WSR-88D. An interaction between this bow echo and a mesoscale boundary (see Fig. 9.2) appears to have been associated with the development of a low-level mesovortex, which in turn hosted a tornado and was responsible for damaging straight-line winds. An overview of this event can be found at: http://www.spc.noaa.gov/exper/archive/event.php?date=20040704
2. MCV on 13-14 August 2009, in the Upper Midwest region of the U.S. An animation of visible satellite imagery over the period 1200-2145 UTC on 14 August shows the demise of an MCS and then the initiation of new convective storms induced by the remnant MCV. This convective espisode originated with an MCS over eastern South Dakota on 13 August (see the animation of IR satellite imagery).