Excessive Heat in Cherokee, Texas

An expansive upper-level ridge of high pressure across the Southern Plains and Gulf Coast region led to a prolonged period of excessive heat through much of mid August across the lower half of East Texas. Afternoon temperatures rose into the upper 90s to lower 100s for several consecutive days totaling over a full week from the 13th through the 20th. Deep southerly moisture pooling in advance of another weak frontal boundary resulted in very minimal mixing of dew points, with attendant heat indices exceeding 110 degrees each day across lower East Texas before the frontal boundary finally advanced southward on August 20th with slightly milder and drier air in its wake.