An upper level ridge of high pressure built in across the Southern Plains during the first two weeks of August, while eventually expanding east into Southwest Arkansas and North Louisiana, resulting in afternoon temperatures climbing into the mid to upper 90s each day. This ridge, which resulted in sinking air that compressed atop a dry ground, occurred over an area south of a weak stationary front over Southeast Oklahoma and Southwest Arkansas, which only allowed for minimal mixing each afternoon. This resulted in heat indices consistently ranging from 105-110 degrees each day across North Louisiana from the afternoon of the 7th to the 11th. However, as the upper ridge moved into Southwest Arkansas and North Louisiana during the second week of August, afternoon temperatures climbed into the upper 90s to in excess of 100 degrees by the afternoon of the 11th, and when combined with the high humidity, resulted in a period of excessive heat over the region.

Heat in OUACHITA, LOUISIANA
From 07-AUG-19 10:00:00 to 11-AUG-19 14:23:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Heat in CALDWELL, LOUISIANA
From 07-AUG-19 10:00:00 to 11-AUG-19 14:23:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Heat in LA SALLE, LOUISIANA
From 07-AUG-19 10:00:00 to 11-AUG-19 14:23:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Heat in GRANT, LOUISIANA
From 07-AUG-19 10:00:00 to 11-AUG-19 14:23:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Heat in WINN, LOUISIANA
From 07-AUG-19 10:00:00 to 11-AUG-19 14:23:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Heat in CLAIBORNE, LOUISIANA
From 07-AUG-19 10:00:00 to 11-AUG-19 14:23:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Heat in LINCOLN, LOUISIANA
From 07-AUG-19 10:00:00 to 11-AUG-19 14:23:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Heat in CADDO, LOUISIANA
From 07-AUG-19 10:00:00 to 11-AUG-19 14:23:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Heat in BOSSIER, LOUISIANA
From 07-AUG-19 10:00:00 to 11-AUG-19 14:23:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Heat in BIENVILLE, LOUISIANA
From 07-AUG-19 10:00:00 to 11-AUG-19 14:23:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Heat in DE SOTO, LOUISIANA
From 07-AUG-19 10:00:00 to 11-AUG-19 14:23:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Heat in RED RIVER, LOUISIANA
From 07-AUG-19 10:00:00 to 11-AUG-19 14:23:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Heat in WEBSTER, LOUISIANA
From 07-AUG-19 10:00:00 to 11-AUG-19 14:23:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Heat in UNION, LOUISIANA
From 07-AUG-19 10:00:00 to 11-AUG-19 14:23:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Heat in JACKSON, LOUISIANA
From 07-AUG-19 10:00:00 to 11-AUG-19 14:23:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Heat in NATCHITOCHES, LOUISIANA
From 07-AUG-19 10:00:00 to 11-AUG-19 14:23:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS