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

Figure 5

The average FWI trend for two different climate divisions in Oklahoma. The right plot is for the Southwest Climate division and the left plot is for the Northeast Climate Division (shown in the bottom right corner of each plot). The roman numerals on the plot represent the moist plateau phase (I: November to mid-March), the transitional drying phase (II: mid-March to mid-June), enhanced drying phase (III: mid-June to late August), and the recharge phase (IV: late August to November). Adapted from Illston et al. [40].

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(b)