A flat upper level ridge of high pressure over South Texas and the Northern Gulf of Mexico on August 17th began to amplify north across the Southern Plains and Ark-La-Tex region on the 18th, with this ridge lingering over the area through the 21st. Given the dry topsoil moisture conditions already in place, temperatures quickly climbed into the mid to upper 90s across North Louisiana, with additional compressional warming beneath the expanding upper level ridge contributing to temperatures climbing further in excess of 100 degrees on the 18th-21st especially over Western Louisiana. Little mixing of dewpoints occurred during the period, resulting in oppressively hot conditions, with heat indices ranging from 105 to 110 degrees each day. Slightly less humid conditions were observed on August 22nd as the upper ridge retreated back to the west into New Mexico, allowing for a weak upper trough and associated surface front to enter the area, and focusing an increase in isolated to scattered showers and thunderstorms.

Heat in GRANT, LOUISIANA
From 17-AUG-19 09:00:00 to 21-AUG-19 18:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Heat in NATCHITOCHES, LOUISIANA
From 17-AUG-19 09:00:00 to 21-AUG-19 18:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Heat in SABINE, LOUISIANA
From 17-AUG-19 09:00:00 to 21-AUG-19 18:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Heat in CADDO, LOUISIANA
From 17-AUG-19 09:00:00 to 21-AUG-19 18:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Heat in BOSSIER, LOUISIANA
From 17-AUG-19 09:00:00 to 21-AUG-19 18:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Heat in DE SOTO, LOUISIANA
From 17-AUG-19 09:00:00 to 21-AUG-19 18:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Heat in RED RIVER, LOUISIANA
From 17-AUG-19 09:00:00 to 21-AUG-19 18:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Heat in BIENVILLE, LOUISIANA
From 17-AUG-19 09:00:00 to 21-AUG-19 18:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Heat in WEBSTER, LOUISIANA
From 17-AUG-19 09:00:00 to 21-AUG-19 18:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Heat in CLAIBORNE, LOUISIANA
From 17-AUG-19 09:00:00 to 21-AUG-19 18:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Heat in LINCOLN, LOUISIANA
From 17-AUG-19 09:00:00 to 21-AUG-19 18:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Heat in UNION, LOUISIANA
From 17-AUG-19 09:00:00 to 21-AUG-19 18:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Heat in OUACHITA, LOUISIANA
From 17-AUG-19 09:00:00 to 21-AUG-19 18:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Heat in JACKSON, LOUISIANA
From 17-AUG-19 09:00:00 to 21-AUG-19 18:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Heat in CALDWELL, LOUISIANA
From 17-AUG-19 09:00:00 to 21-AUG-19 18:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Heat in LA SALLE, LOUISIANA
From 17-AUG-19 09:00:00 to 21-AUG-19 18:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Heat in WINN, LOUISIANA
From 17-AUG-19 09:00:00 to 21-AUG-19 18:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS