The Effect of the Dry Line and Convective Initiation on Drought Evolution over Oklahoma during the 2011 Drought

Figure 4

Map showing the monthly deviations from average total rainfall over the state of Oklahoma for April (a) and May (b) 2011, using measurements obtained from the Oklahoma Mesonet. Values display the actual deviation at each station and color filled gradient was created using a four-pass Barnes technique using the values at each station. Deviations are calculated from the 1999–2014 average during each month.

(a)

(b)