A mature, very intense derecho moved rapidly east along a stationary front across the Mid Mississippi Valley into the Lower Ohio Valley. With a very moist and unstable atmosphere, along with strongly veering winds aloft, embedded tornadic supercells were associated with the derecho. Widespread damaging winds were the primary impact. The bowing portion of the system caused extensive damage from the Poplar Bluff area west. The comma head at the northern end of the bow caused locally catastrophic damage along and north of a Marble Hill to Jackson line. Winds were estimated slightly over 100 mph there.

Heavy Rain in RIPLEY, MISSOURI
From 08-MAY-09 09:00:00 to 08-MAY-09 13:00:00 (CST-6)
Location: DONIPHAN
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Water was over roads.

Thunderstorm Wind in CARTER, MISSOURI
From 08-MAY-09 09:00:00 to 08-MAY-09 09:00:00 (CST-6)
Location: VAN BUREN MUNI ARPT
Magnitude: 56.00 EG
Property damage: 20.00K
Crop damage: 0.00K
Reported by: Newspaper

Six large trees fell across County Road 554. On neighboring properties, about two dozen other very large oak and pine trees came down. A fence was destroyed.

Thunderstorm Wind in CAPE GIRARDEAU, MISSOURI
From 08-MAY-09 11:25:00 to 08-MAY-09 12:05:00 (CST-6)
Location: OAK RIDGE
Magnitude: 70.00 EG
Property damage: 3.00M
Crop damage: 0.00K
Reported by: NWS Storm Survey

Widespread damaging winds affected northern parts of the county. Over 1,000 trees were blown down, along with power lines. Many roads were blocked. The trees fell on homes, vehicles, and power lines. Power poles were snapped. Extended power outages lasting up to several days were reported. Barns and sheds were blown down. Just west of Oak Ridge, 259 trees were blown down on a single farm. The house and a garage on the farm received holes in their roofs. Windows were blown out of at least one house in Oak Ridge. Towns that experienced the worst damage were north of Jackson, including Daisy and Pocahontas. Several trees were blown down in Jackson, including one that landed on a car.

Thunderstorm Wind in PERRY, MISSOURI
From 08-MAY-09 11:20:00 to 08-MAY-09 12:00:00 (CST-6)
Location: SILVER LAKE
Magnitude: 74.00 EG
Property damage: 50.00M
Crop damage: 0.00K
Reported by: NWS Storm Survey

Widespread damaging winds affected most of the county. Hundreds of trees were blown down, roofs were blown off, and signs became airborne. In Perryville, the exterior wall of a tire company collapsed. The entire building was deemed a total loss. Structural damage occurred in many communities, mostly due to falling trees. Among other structures, a machine shed was destroyed in Millheim. Most residents of the county experienced some type of damage, ranging from downed trees to roofs off. Vehicles were smashed by falling trees. At a church, the roof was damaged, and tombstones were toppled at an adjacent cemetery. The glass of the front door was blown out. At another church in Altenburg, a 22,000-pound steeple constructed in 1867 blew down onto the roof. A large portion of the roof was peeled off an apartment complex in Perryville, forcing its evacuation. The roof of the new senior center in Perryville was destroyed. Emergency workers conducted door-to-door checks using vehicles and helicopters.

Thunderstorm Wind in BOLLINGER, MISSOURI
From 08-MAY-09 11:15:00 to 08-MAY-09 11:45:00 (CST-6)
Location: NORTH PATTON
Magnitude: 91.00 EG
Property damage: 8.00M
Crop damage: 0.00K
Reported by: NWS Storm Survey

Thousands of trees were blown down, primarily across northern parts of the county. A lot of structural damage occurred along Highway 72. About 250 homes received some degree of damage, ranging from loose shingles to roofs lifted off. Many barns and outbuildings were destroyed. The Patton and Sedgewickville areas were the hardest hit. In particular, the area from Sedgewickville west to the Madison County line suffered extreme damage. Trees fell on houses, roads, and power lines. Power poles were snapped. Extended power outages lasting 3 to 5 days were widespread. A 28-foot camper was overturned in Sedgewickville. Nearby, a manufacturing company was heavily damaged. Six cars parked in front of the building were crushed by metal beams. The roof of the building was torn off. Across the damage area, emergency workers conducted door-to-door welfare checks. Food and water were distributed to those without power. Blocked roads were a major setback to recovery efforts. The damage was almost all north of Marble Hill.

Thunderstorm Wind in RIPLEY, MISSOURI
From 08-MAY-09 09:15:00 to 08-MAY-09 09:30:00 (CST-6)
Location: PINE
Magnitude: 78.00 EG
Property damage: 750.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

This intense macroburst was centered along U.S. Highway 160 over western and central Ripley County, including the city of Doniphan. The average path width was about 5.5 miles, averaging from two miles north of Highway 160 to about three miles south. Peak wind gusts near 90 mph caused extensive tree damage, in addition to structural damage in the city of Doniphan. The Ripley County courthouse, a nearby commercial business, and the chamber of commerce building lost portions of their roofs. Rain caused water damage to all three buildings. A museum lost metal roofing. Two houses in the city were damaged by a falling tree. Doors were blown off buildings and blown up to 50 yards. Windows were broken. Winds were measured at 79 mph at the Doniphan Fire Department and estimated at 90 mph by the NWS survey team at the courthouse. A tree fell through a trailer home on Highway Y, splitting it in two. A house in Gatewood was damaged by a falling tree. There were numerous power outages around the county. Many roads were blocked by downed trees.

Tornado in PERRY, MISSOURI
From 08-MAY-09 10:20:00 to 08-MAY-09 10:23:00 (CST-6)
Location: MC BRIDE
Tornado F-scale: EF0
Property damage: 7.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

The tornado was videotaped by a person at the Perryville airport and shown on local media outlets. The path was visible in a wheat field along County Road 934. Dozens of trees were down near the path, apparently due to inflow winds. Eyewitness accounts of the tornado were obtained. Peak winds were estimated near 65 mph.

Heavy Rain in CARTER, MISSOURI
From 08-MAY-09 09:00:00 to 08-MAY-09 12:00:00 (CST-6)
Location: VAN BUREN
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Unknown

Rainfall of 2.6 inches was reported.

Heavy Rain in PERRY, MISSOURI
From 08-MAY-09 11:45:00 to 08-MAY-09 12:45:00 (CST-6)
Location: PERRYVILLE
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Some flooding was reported on roads.

Thunderstorm Wind in BUTLER, MISSOURI
From 08-MAY-09 09:50:00 to 08-MAY-09 09:50:00 (CST-6)
Location: POPLAR BLUFF
Magnitude: 61.00 EG
Property damage: 45.00K
Crop damage: 0.00K
Reported by: Newspaper

A moving vehicle along Highway 53 was destroyed by a very large oak tree that fell on it. Both occupants of the vehicle were killed, probably on impact. A small fire started in the engine compartment after emergency responders arrived. A 40-foot semi-trailer was overturned in the immediate vicinity of the crushed vehicle. The tin roof was lifted off a barn. A portion of a large shed collapsed.