A very unstable airmass developed across the four state region during the afternoon hours of May 2nd. A weak cold front had moved southward during the morning hours into southeast Oklahoma and southwest Arkansas and had stalled. A weak shortwave moved into the Texas Hill County and produced enough lift...along with the development of a strong low level jet...for strong to severe thunderstorms to erupt across the region. The storms initially developed as supercells...producing large hail and isolated tornadoes but then evolved into a squall line. Strong straight line winds accompanied the squall line with winds in excess of 100 mph reported with some storms. There were also isolated tornadoes reported within the squall line itself. Damage was extensive across the region but overnight...the repeated training of storms resulted in a widespread flash flooding event. Numerous counties and parishes were flooded with rainfall amounts in excess of 6 inches in a 12 hour period common. By the time the event ended...there were five different line echo wave patterns that developed across the four state region the afternoon of May 2nd through the morning hours of May 3rd.

Tornado in BIENVILLE, LOUISIANA
From 03-MAY-09 07:03:00 to 03-MAY-09 07:05:00 (CST-6)
Location: COX CROSSING
Tornado F-scale: EF0
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

Several trees were snapped onto powerlines along Hwy. 508 east of Bienville, Louisiana.  Several more trees were uprooted along Hwy. 155.

Thunderstorm Wind in SABINE, LOUISIANA
From 03-MAY-09 06:40:00 to 03-MAY-09 06:40:00 (CST-6)
Location: LORING
Magnitude: 80.00 EG
Property damage: 1.00M
Crop damage: 0.00K
Reported by: Law Enforcement

Several reports of trees and powerlines downed in Zwolle, Louisiana.  The northern portion of the parish was the hardest hit with reports of trees on 10 different homes in the Pleasant Hill community.  Trees were also downed on many homes in the Many community as well.  In the Rocky Mount community, a mobile home was destroyed by wind gusts and a large tree.  Several homes along the eastern shore of the Toledo Bend suffered wind damage of damage resulting from fallen trees.

Flash Flood in CADDO, LOUISIANA
From 03-MAY-09 07:17:00 to 03-MAY-09 10:15:00 (CST-6)
Location: NORTON
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Employee

High water was reported in the Long Lake Subdivision with up to 3 feet of water covering some streets.

Flash Flood in CADDO, LOUISIANA
From 03-MAY-09 06:23:00 to 03-MAY-09 10:15:00 (CST-6)
Location: CUTOFF JCT
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Several city streets were flooded from excessive heavy rainfall.

Thunderstorm Wind in CLAIBORNE, LOUISIANA
From 02-MAY-09 18:24:00 to 02-MAY-09 18:24:00 (CST-6)
Location: HAYNESVILLE
Magnitude: 54.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Trees were downed just west of Haynesville, Louisiana on La. 2.

Tornado in WINN, LOUISIANA
From 03-MAY-09 07:40:00 to 03-MAY-09 07:43:00 (CST-6)
Location: DODSON
Tornado F-scale: EF2
Property damage: 3.00M
Crop damage: 0.00K
Reported by: NWS Storm Survey

Numerous homes were damaged in the town of Dodson with several completely destroyed.  One mobile home was picked up and moved 30 feet west of its original location where it was destroyed with parts of the frame wrapped around a neighboring home.  The two injuries occurred in the destroyed home.  Approximately 27 mobile homes and 11 built in place structures in the center of Dodson sustained severe damage from snapped or falling trees and/or wind damage.  A mobile home in the center of Dodson was rolled off its foundation and destroyed.  The tornado touched down on the southwest side of town along US 167 and moved northward 1.5 miles before lifting along State Route 1235.

Tornado in BIENVILLE, LOUISIANA
From 03-MAY-09 06:38:00 to 03-MAY-09 06:41:00 (CST-6)
Location: ALBERTA
Tornado F-scale: EF0
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

Several trees were snapped and uprooted along Pumpkin Center Road northeastward to Ridge Road east of Castor.  Several powerlines were also downed in the area.

Hail in UNION, LOUISIANA
From 02-MAY-09 18:11:00 to 02-MAY-09 18:11:00 (CST-6)
Location: FARMERVILLE ARPT
Magnitude: 0.88 
Property damage: 3.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Hail was denting a vehicle along SR. 828.

Thunderstorm Wind in WEBSTER, LOUISIANA
From 02-MAY-09 18:02:00 to 02-MAY-09 18:02:00 (CST-6)
Location: SPRINGHILL
Magnitude: 53.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Trees were downed in the Cullen community as well as surrounding areas.

Flash Flood in CADDO, LOUISIANA
From 03-MAY-09 07:10:00 to 03-MAY-09 10:15:00 (CST-6)
Location: LA ROSEN
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

High water was covering several roads and city streets in portions of Southern Hills in south Shreveport.

Thunderstorm Wind in DE SOTO, LOUISIANA
From 03-MAY-09 06:45:00 to 03-MAY-09 06:45:00 (CST-6)
Location: MANSFIELD
Magnitude: 70.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Several trees and powerlines were downed across the parish.  The cities of Mansfield and Logansport were without power.

Thunderstorm Wind in SABINE, LOUISIANA
From 03-MAY-09 06:54:00 to 03-MAY-09 06:54:00 (CST-6)
Location: LORING
Magnitude: 80.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Emergency Management and Sheriff Office confirmed the fatality of an elderly man near Zwolle, Louisiana.  The man was killed by a fallen tree while lying in the bed of his pickup truck parked in the driveway next to his home.

Thunderstorm Wind in LA SALLE, LOUISIANA
From 03-MAY-09 08:15:00 to 03-MAY-09 08:15:00 (CST-6)
Location: JENA
Magnitude: 70.00 EG
Property damage: 50.00K
Crop damage: 0.00K
Reported by: Newspaper

Trees and powerlines were downed throughout the parish resulting in numerous power outages. Some trees fell on top of home as well including one that damages the Mount Sinai Baptist Church.  Another tree fell on top of a truck crushing the cab but no injuries were reported.

Thunderstorm Wind in NATCHITOCHES, LOUISIANA
From 03-MAY-09 07:30:00 to 03-MAY-09 07:30:00 (CST-6)
Location: MARCO
Magnitude: 87.00 EG
Property damage: 1.00M
Crop damage: 0.00K
Reported by: NWS Storm Survey

Numerous homes were damaged either by falling trees or sustained roof damage from downburst winds along U.S. Hwy 71.  This included a barn that was completely destroyed.  The damage was consistent with a downburst where a concentrated area of damage spread outward and east towards Lake Nantachie where 6 steel transmission lines were bent.  The width of the damage path along Hwy. 71 was approximately 1 mile wide where trees were snapped or uprooted.

Thunderstorm Wind in DE SOTO, LOUISIANA
From 03-MAY-09 06:33:00 to 03-MAY-09 06:33:00 (CST-6)
Location: LOGANSPORT
Magnitude: 70.00 EG
Property damage: 75.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

Damage consisted of many trees snapped or uprooted.  Several powerlines were blown down.  A few homes had minor roof damage as well.  Winds were estimated to be near 80 mph.

Thunderstorm Wind in WINN, LOUISIANA
From 03-MAY-09 07:40:00 to 03-MAY-09 07:40:00 (CST-6)
Location: WINNFIELD
Magnitude: 85.00 EG
Property damage: 40.00K
Crop damage: 0.00K
Reported by: Law Enforcement

A tree fell on top of a home in Winnfield, Louisiana.  The tree trapped the woman inside and she suffered minor injuries.

Flash Flood in BIENVILLE, LOUISIANA
From 03-MAY-09 08:02:00 to 03-MAY-09 11:00:00 (CST-6)
Location: SPARTA
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Several roads were underwater across Bienville Parish.

Thunderstorm Wind in WINN, LOUISIANA
From 03-MAY-09 07:50:00 to 03-MAY-09 07:50:00 (CST-6)
Location: WINNFIELD
Magnitude: 85.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Widespread trees and powerlines downed across the entire parish.

Thunderstorm Wind in NATCHITOCHES, LOUISIANA
From 03-MAY-09 07:15:00 to 03-MAY-09 07:15:00 (CST-6)
Location: NATCHEZ
Magnitude: 87.00 EG
Property damage: 5.00M
Crop damage: 0.00K
Reported by: NWS Storm Survey

Numerous homes and businesses were severely damaged in the town of Natchez, Louisiana including the City Hall where the roof was completely removed.  Officials reported that 53 residences, 11 vehicles, 2 businesses and 2 boats were damaged or destroyed.  Numerous trees were snapped and uprooted from Natchez southward along State Route 494 and across the Cane River.  Winds were estimated to be between 100 and 110 mph.

Thunderstorm Wind in GRANT, LOUISIANA
From 03-MAY-09 07:45:00 to 03-MAY-09 07:45:00 (CST-6)
Location: COLFAX
Magnitude: 80.00 EG
Property damage: 300.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Trees and powerlines were downed across all of Grant Parish  A woman was injured when she was struck by debris from straight line winds gusts that pushed here mobile home approximately six feet.  Her foot was broken in two different places.  Other damage included a few trees on homes, damaged vehicles from fallen trees as well as downed metal transmission structures.

Thunderstorm Wind in OUACHITA, LOUISIANA
From 03-MAY-09 08:25:00 to 03-MAY-09 08:25:00 (CST-6)
Location: BAWCOMVILLE
Magnitude: 60.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Several trees were downed along New Natchitoches Road.

Thunderstorm Wind in NATCHITOCHES, LOUISIANA
From 03-MAY-09 07:10:00 to 03-MAY-09 07:10:00 (CST-6)
Location: NATCHITOCHES
Magnitude: 80.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Trees and powerlines were downed across the entire parish.

Thunderstorm Wind in RED RIVER, LOUISIANA
From 03-MAY-09 07:00:00 to 03-MAY-09 07:00:00 (CST-6)
Location: COUSHATTA
Magnitude: 68.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Several trees and powerlines were downed across the entire parish.