A strong upper-level ridge of high pressure intensified and expanded farther northeast from the Southern Plains into the mid-section of U.S. through much of mid to late August. Prevailing southerly flow south of the ridge maintained persistent Gulf of Mexico moisture across the Four State Region. Strong sinking motion observed beneath this ridge resulted in compressional warming, with temperatures climbing well into the triple digits across all of East and Northeast Texas. Given the limited mixing of dewpoints observed, oppressive heat was observed with heat indices reaching or exceeding 110 degrees throughout much of mid to late August.

Excessive Heat in ANGELINA, TEXAS
From 18-AUG-23 10:00:00 to 27-AUG-23 23:59:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Excessive Heat in BOWIE, TEXAS
From 18-AUG-23 10:00:00 to 27-AUG-23 23:59:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Excessive Heat in CAMP, TEXAS
From 18-AUG-23 10:00:00 to 27-AUG-23 23:59:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Excessive Heat in CASS, TEXAS
From 18-AUG-23 10:00:00 to 27-AUG-23 23:59:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Excessive Heat in CHEROKEE, TEXAS
From 18-AUG-23 10:00:00 to 27-AUG-23 23:59:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Excessive Heat in FRANKLIN, TEXAS
From 18-AUG-23 10:00:00 to 27-AUG-23 23:59:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Excessive Heat in GREGG, TEXAS
From 18-AUG-23 10:00:00 to 27-AUG-23 23:59:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Excessive Heat in HARRISON, TEXAS
From 18-AUG-23 10:00:00 to 27-AUG-23 23:59:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Excessive Heat in MARION, TEXAS
From 18-AUG-23 10:00:00 to 27-AUG-23 23:59:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Excessive Heat in MORRIS, TEXAS
From 18-AUG-23 10:00:00 to 27-AUG-23 23:59:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Excessive Heat in NACOGDOCHES, TEXAS
From 18-AUG-23 10:00:00 to 27-AUG-23 23:59:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Excessive Heat in PANOLA, TEXAS
From 18-AUG-23 10:00:00 to 27-AUG-23 23:59:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Excessive Heat in RED RIVER, TEXAS
From 18-AUG-23 10:00:00 to 27-AUG-23 23:59:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Excessive Heat in RUSK, TEXAS
From 18-AUG-23 10:00:00 to 27-AUG-23 23:59:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Excessive Heat in SABINE, TEXAS
From 18-AUG-23 10:00:00 to 27-AUG-23 23:59:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Excessive Heat in SAN AUGUSTINE, TEXAS
From 18-AUG-23 10:00:00 to 27-AUG-23 23:59:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Excessive Heat in SHELBY, TEXAS
From 18-AUG-23 10:00:00 to 27-AUG-23 23:59:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Excessive Heat in SMITH, TEXAS
From 18-AUG-23 10:00:00 to 27-AUG-23 23:59:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Excessive Heat in TITUS, TEXAS
From 18-AUG-23 10:00:00 to 27-AUG-23 23:59:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Excessive Heat in UPSHUR, TEXAS
From 18-AUG-23 10:00:00 to 27-AUG-23 23:59:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Excessive Heat in WOOD, TEXAS
From 18-AUG-23 10:00:00 to 27-AUG-23 23:59:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS