Scattered Storms North of I-40 tonight Hot and dry weather settles in this weekend Highs soar into the 90s with heat indexes 105°+ ...The National Weather Service in Tulsa has issued a Flood Advisory for the following rivers in Oklahoma... Bird Creek near Owasso-Mingo affecting Tulsa County. Illinois River near Tahlequah affecting Cherokee County. Illinois River at Chewey affecting Cherokee, Delaware and Adair Counties. Flint Creek near Kansas affecting Cherokee and Delaware Counties.