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 North Louisiana. 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 RED RIVER, LOUISIANA
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, LOUISIANA
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 UNION, LOUISIANA
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 WEBSTER, LOUISIANA
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 WINN, LOUISIANA
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 BIENVILLE, LOUISIANA
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 BOSSIER, LOUISIANA
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 CADDO, LOUISIANA
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 CALDWELL, LOUISIANA
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 CLAIBORNE, LOUISIANA
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 DE SOTO, LOUISIANA
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 GRANT, LOUISIANA
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 JACKSON, LOUISIANA
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 LA SALLE, LOUISIANA
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 LINCOLN, LOUISIANA
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 NATCHITOCHES, LOUISIANA
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 OUACHITA, LOUISIANA
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