Oklahoma weather phenomena come in two thicknesses: All Over The Damn Place and Really Narrow Bands. You can see examples of both in this past week’s excerpt from the US Drought Monitor, as prepared by the Norman forecast office:
Note that in southwest Canadian County, west of OKC, it’s only a few miles from No Drought to Abnormally Dry to Moderate Drought — but once you get to the Extreme Drought area, it goes on for miles and miles and miles. (There are spots of Exceptional Drought up in the Panhandle, which is in Amarillo’s domain.)
The Monitor is compiled on Tuesday morning and released the following Thursday, which is why none of the Thursday/Friday downpours will show up until next week.