Figure 10: Constant altitude plan position indicator (CAPPI) and associated vertical cross-section of NPOL radar reflectivity for (a) 23:46 UTC on 01 September 2006 and (b) 00:46 UTC on 14 September 2006. Reflectivity is contoured every 5 dBZ and the emboldened line located on the CAPPI represents the location of the cross-section. The star indicates the location of NPOL. These times signify the period of greatest organization of the respective squall lines.