During the evening of May 13, 2009, a series of powerful supercell storms developed ahead of a cold front, pushing southward out of Iowa and Nebraska.  These supercell storms produced a wide array of severe weather, with large hail up to the size of golf balls and winds up to 60 mph reported. These storms marched across eastern Kansas and northern Missouri during the evening hours, with a strong supercell storm producing tornadic activity in parts of northeast Missouri. Damage surveys conducted
by the National Weather Service, in conjunction with emergency management, have
found evidence of three tornadoes in Sullivan and Adair counties. All tornadoes
appeared to have been produced by the same supercell thunderstorm. There were
three fatalities. Moderate to severe damage was reported, in the Kirksville area.

Tornado in SULLIVAN, MISSOURI
From 13-MAY-09 16:10:00 to 13-MAY-09 16:35:00 (CST-6)
Location: MILAN
Tornado F-scale: EF1
Property damage: 25.00K
Crop damage: 0.00K
Reported by: Emergency Manager

An EF1 tornado touched down at 1610 CST, about two miles north-northeast of Milan. The tornado proceeded east-northeast, and lifted about three and a half miles south-southeast of Boynton, at 1635 CST. The tornado destroyed a mobile home and killed a female occupant. Numerous trees were uprooted or damaged.

Tornado in ADAIR, MISSOURI
From 13-MAY-09 17:09:00 to 13-MAY-09 17:20:00 (CST-6)
Location: KIRKSVILLE
Tornado F-scale: EF2
Property damage: 5.00M
Crop damage: 0.00K
Reported by: Emergency Manager

An EF2 tornado touched down at 17:09 CST, 2 miles north-northwest of Kirksville. This tornado traveled east over northern portions of Kirksville, before lifting at 17:20 CST, 2 miles west-southwest of the town of Clay. This tornado killed two people and damaged numerous homes in northern Kirksville. Ten homes were destroyed and fifteen others suffered major damage. Up to 186 other buildings and homes had minor to moderate damage. Two dealerships suffered major damage. Several farmsteads suffered damage east of Kirksville.

Tornado in ADAIR, MISSOURI
From 13-MAY-09 16:43:00 to 13-MAY-09 16:55:00 (CST-6)
Location: PURE AIR
Tornado F-scale: EF1
Property damage: 100.00K
Crop damage: 0.00K
Reported by: Emergency Manager

An EF1 tornado touched down around 5 miles west of Novinger at 16:43 CST, and paralled Highway 6 as it moved east. The tornado lifted around 2 miles east of Novinger at 16:55 CST. The tornado destroyed a house and out building west of Novinger. On the south side of Novinger, a mobile home was destroyed and power poles and lines were downed. Additional power poles and trees were damaged, before the tornado lifted.

Hail in LINN, MISSOURI
From 13-MAY-09 17:27:00 to 13-MAY-09 17:27:00 (CST-6)
Location: BUCKLIN
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in LAFAYETTE, MISSOURI
From 13-MAY-09 17:35:00 to 13-MAY-09 17:35:00 (CST-6)
Location: NAPOLEON
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in CARROLL, MISSOURI
From 13-MAY-09 18:15:00 to 13-MAY-09 18:15:00 (CST-6)
Location: NORBORNE
Magnitude: 1.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Hail in LINN, MISSOURI
From 13-MAY-09 16:55:00 to 13-MAY-09 16:55:00 (CST-6)
Location: LMNEUS
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in JOHNSON, MISSOURI
From 13-MAY-09 19:15:00 to 13-MAY-09 19:15:00 (CST-6)
Location: KNOB NOSTER
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in PETTIS, MISSOURI
From 13-MAY-09 19:31:00 to 13-MAY-09 19:31:00 (CST-6)
Location: GREEN RIDGE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm Wind in LINN, MISSOURI
From 13-MAY-09 16:30:00 to 13-MAY-09 16:30:00 (CST-6)
Location: LMNEUS
Magnitude: 61.00 EG
Property damage: 15.00K
Crop damage: 0.00K
Reported by: Amateur Radio

A trailer was reported to be destroyed, due to thunderstorm winds estimated up to 70 mph.

Hail in LIVINGSTON, MISSOURI
From 13-MAY-09 15:55:00 to 13-MAY-09 15:55:00 (CST-6)
Location: CHILLICOTHE
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Hail in RAY, MISSOURI
From 13-MAY-09 17:07:00 to 13-MAY-09 17:07:00 (CST-6)
Location: MILLVILLE
Magnitude: 1.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in MACON, MISSOURI
From 13-MAY-09 18:36:00 to 13-MAY-09 18:36:00 (CST-6)
Location: MACON ARPT
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Hail in JOHNSON, MISSOURI
From 13-MAY-09 19:00:00 to 13-MAY-09 19:00:00 (CST-6)
Location: WARRENSBURG
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in JACKSON, MISSOURI
From 13-MAY-09 17:26:00 to 13-MAY-09 17:26:00 (CST-6)
Location: GRAIN VLY
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in JOHNSON, MISSOURI
From 13-MAY-09 19:00:00 to 13-MAY-09 19:00:00 (CST-6)
Location: MONTSERRAT
Magnitude: 1.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Hail in MACON, MISSOURI
From 13-MAY-09 17:55:00 to 13-MAY-09 17:55:00 (CST-6)
Location: ATLANTA
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in JOHNSON, MISSOURI
From 13-MAY-09 18:45:00 to 13-MAY-09 18:45:00 (CST-6)
Location: WARRENSBURG
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in LINN, MISSOURI
From 13-MAY-09 17:10:00 to 13-MAY-09 17:10:00 (CST-6)
Location: NEW BOSTON
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in JOHNSON, MISSOURI
From 13-MAY-09 19:05:00 to 13-MAY-09 19:05:00 (CST-6)
Location: BOWMANSVILLE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in LAFAYETTE, MISSOURI
From 13-MAY-09 17:35:00 to 13-MAY-09 17:35:00 (CST-6)
Location: NAPOLEON
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in JOHNSON, MISSOURI
From 13-MAY-09 18:45:00 to 13-MAY-09 18:45:00 (CST-6)
Location: VLY CITY
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in JOHNSON, MISSOURI
From 13-MAY-09 18:58:00 to 13-MAY-09 18:58:00 (CST-6)
Location: WARRENSBURG
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter