Excessive Heat in Morris, Texas

An upper ridge of high pressure shifted east into the Oklahoma and Texas Panhandles on July 31st. Meanwhile, a weak surface front remained stationary across portions of Eastern Oklahoma and Central Arkansas, with moisture pooling observed near this front over all of the Four State Region. Strong sinking motion observed beneath this ridge resulted in compressional warming, with temperatures climbing into the lower 100s across East Texas. Given the limited mixing of dewpoints observed, oppressive heat was observed with heat indices ranging near and in excess of 110 degrees on the 31st, which continued into August.