A strong upper level disturbance interacted with a very warm and humid air mass in place across the region allowing several severe thunderstorms to develop during the evening hours of the 9th. The storms developed across far northeastern Louisiana and southeast Arkansas initially, gradually moving south as the evening wore on. Damage due to wind and hail occurred as a result of these storms, in addition to some damage as a result of lightning.

Thunderstorm Wind in TENSAS, LOUISIANA
From 09-AUG-12 05:55:00 to 09-AUG-12 05:55:00 (CST-6)
Location: ST JOSEPH LAKE
Magnitude: 55.00 EG
Property damage: 8.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Trees and power lines were blown down due to a microburst on the west bank of Lake Saint Joseph south of Newellton.

Hail in WEST CARROLL, LOUISIANA
From 09-AUG-12 18:10:00 to 09-AUG-12 18:10:00 (CST-6)
Location: KILBOURNE
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Thunderstorm Wind in MOREHOUSE, LOUISIANA
From 09-AUG-12 18:30:00 to 09-AUG-12 18:30:00 (CST-6)
Location: MER ROUGE
Magnitude: 43.00 EG
Property damage: 0.10K
Crop damage: 0.00K
Reported by: Law Enforcement

A tree was down across a road.

Thunderstorm Wind in WEST CARROLL, LOUISIANA
From 09-AUG-12 18:50:00 to 09-AUG-12 18:50:00 (CST-6)
Location: PIONEER
Magnitude: 50.00 EG
Property damage: 6.00K
Crop damage: 0.00K
Reported by: Utility Company

Power lines were blown down in Pioneer.

Hail in MOREHOUSE, LOUISIANA
From 09-AUG-12 19:18:00 to 09-AUG-12 19:18:00 (CST-6)
Location: BRODENAX
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Thunderstorm Wind in MOREHOUSE, LOUISIANA
From 09-AUG-12 19:18:00 to 09-AUG-12 19:18:00 (CST-6)
Location: BRODENAX
Magnitude: 50.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Public

Several large limbs were blown down onto power lines.

Hail in RICHLAND, LOUISIANA
From 09-AUG-12 19:25:00 to 09-AUG-12 19:30:00 (CST-6)
Location: GIRARD
Magnitude: 1.25 
Property damage: 20.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Half dollar size hail was covering the ground north of Start. Minor roof damage occurred to a home from the hail.

Thunderstorm Wind in RICHLAND, LOUISIANA
From 09-AUG-12 19:30:00 to 09-AUG-12 19:30:00 (CST-6)
Location: GIRARD
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Large limbs were blown down.

Hail in MADISON, LOUISIANA
From 09-AUG-12 19:40:00 to 09-AUG-12 19:40:00 (CST-6)
Location: ALTOONA
Magnitude: 1.75 
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail up to golf ball size fell at the Bayou Macon Lounge.

Thunderstorm Wind in MADISON, LOUISIANA
From 09-AUG-12 19:35:00 to 09-AUG-12 19:35:00 (CST-6)
Location: ALTOONA
Magnitude: 55.00 EG
Property damage: 20.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Numerous trees and power lines were blown down along Route 577 between Bayou Macon Lounge and Waverly. Several metal carports were blown around as well.

Thunderstorm Wind in FRANKLIN, LOUISIANA
From 09-AUG-12 19:50:00 to 09-AUG-12 19:55:00 (CST-6)
Location: SWAMPERS
Magnitude: 55.00 EG
Property damage: 15.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Multiple trees were down across the parish along with a roof blown off of a trailer.

Hail in RICHLAND, LOUISIANA
From 09-AUG-12 19:56:00 to 09-AUG-12 19:56:00 (CST-6)
Location: ALTO
Magnitude: 1.75 
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Public

Thunderstorm Wind in RICHLAND, LOUISIANA
From 09-AUG-12 20:00:00 to 09-AUG-12 20:00:00 (CST-6)
Location: ALTO
Magnitude: 55.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trees and a power line were down across LA Highway 15. Multiple trees and power lines were blown down between Rayville and Mangham.

Thunderstorm Wind in FRANKLIN, LOUISIANA
From 09-AUG-12 20:00:00 to 09-AUG-12 20:20:00 (CST-6)
Location: BUSHES
Magnitude: 55.00 EG
Property damage: 60.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A tree fell on a house on Jim Albert Road. Trees were blown down all across Franklin Parish with three trees on houses. In the area south of Crowville, a roof was blown off a trailer, large tree limbs fell through houses, and a few windows were blown out. A couple of signs were blown down at the Citgo gas station on Highway 4 West.

Thunderstorm Wind in CATAHOULA, LOUISIANA
From 09-AUG-12 20:15:00 to 09-AUG-12 20:15:00 (CST-6)
Location: SICILY IS
Magnitude: 55.00 EG
Property damage: 15.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Several trees fell onto roads in the area. A trailer was damaged by a falling tree. Power outages also occurred in the area.

Thunderstorm Wind in TENSAS, LOUISIANA
From 09-AUG-12 20:20:00 to 09-AUG-12 20:20:00 (CST-6)
Location: NEW LIGHT
Magnitude: 55.00 EG
Property damage: 8.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Power lines and large limbs were blown down across northern Tensas Parish. Multiple trees were blown down blocking Louisiana Highway 4.

Hail in RICHLAND, LOUISIANA
From 09-AUG-12 20:25:00 to 09-AUG-12 20:25:00 (CST-6)
Location: MANGHAM
Magnitude: 1.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Lightning in FRANKLIN, LOUISIANA
From 09-AUG-12 20:25:00 to 09-AUG-12 20:25:00 (CST-6)
Location: WINNSBORO
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A house was struck by lightning.

Thunderstorm Wind in CATAHOULA, LOUISIANA
From 09-AUG-12 21:00:00 to 09-AUG-12 21:45:00 (CST-6)
Location: LELAND
Magnitude: 60.00 EG
Property damage: 15.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Multiple trees and power lines were blown down all across northern Catahoula Parish. Power lines were blown down in Jonesville.

Thunderstorm Wind in CONCORDIA, LOUISIANA
From 09-AUG-12 21:45:00 to 09-AUG-12 21:45:00 (CST-6)
Location: WILDSVILLE
Magnitude: 55.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Power lines were blown down in Wildsville.

Thunderstorm Wind in MOREHOUSE, LOUISIANA
From 09-AUG-12 21:50:00 to 09-AUG-12 21:50:00 (CST-6)
Location: OAK RIDGE
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

A tree was blown down across Highway 133.

Flash Flood in FRANKLIN, LOUISIANA
From 09-AUG-12 22:00:00 to 09-AUG-12 22:30:00 (CST-6)
Location: BASKIN
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Water was covering portions of Highway 857.

Thunderstorm Wind in FRANKLIN, LOUISIANA
From 09-AUG-12 19:50:00 to 09-AUG-12 19:55:00 (CST-6)
Location: SWAMPERS
Magnitude: 60.00 EG
Property damage: 25.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A roof was blown off a trailer on Highway 578. Multiple trees were blown down all across the parish.