(a) 06 UTC 21
(b) 10 UTC 21
(c) 12 UTC 21
(d) 18 UTC 21
Figure 6: Radar reflectivity (DBZ) from Beijing site at (a) 0600 and (c) 1200 UTC 21 July and simulated reflectivity at (b) 1000 and (d) 1800 UTC 21 July.