After an extremely hot and muggy day, in which temperatures soared into the 90s and dew points rose into the 70s, across Missouri, a weak stationary front and sinking upper level disturbance from the north, provided enough energy to allow several severe thunderstorms to form, during the evening and overnight hours of Monday, July 21st.  Thunderstorms rapidly formed in areas northeast of Chillicothe and Brookfield, with thunderstorms reaching severe levels in less than 10 minutes time. These severe thunderstorms, quickly produced damaging winds, and even a few tornado touchdowns.

Hail in NODAWAY, MISSOURI
From 21-JUL-08 21:13:00 to 21-JUL-08 21:13:00 (CST-6)
Location: PARNELL
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Hail in WORTH, MISSOURI
From 21-JUL-08 21:30:00 to 21-JUL-08 21:30:00 (CST-6)
Location: GRANT CITY
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in SULLIVAN, MISSOURI
From 21-JUL-08 21:50:00 to 21-JUL-08 21:50:00 (CST-6)
Location: PENNVILLE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Tornado in LINN, MISSOURI
From 21-JUL-08 19:30:00 to 21-JUL-08 19:40:00 (CST-6)
Location: NORTH SALEM
Tornado F-scale: EF0
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

An EFO tornado entered Linn County from Sullivan county at 19:30CST,
near the town of New Salem. The tornado dissipated at 19:40CST 2.5 miles northwest of New Boston. Only tree damage in rural areas were observed.

Hail in GRUNDY, MISSOURI
From 21-JUL-08 19:15:00 to 21-JUL-08 19:15:00 (CST-6)
Location: DUNLAP
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Hail in ADAIR, MISSOURI
From 21-JUL-08 19:15:00 to 21-JUL-08 19:15:00 (CST-6)
Location: KIRKSVILLE
Magnitude: 1.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in GRUNDY, MISSOURI
From 21-JUL-08 19:26:00 to 21-JUL-08 19:26:00 (CST-6)
Location: DUNLAP
Magnitude: 2.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in NODAWAY, MISSOURI
From 21-JUL-08 20:39:00 to 21-JUL-08 20:39:00 (CST-6)
Location: MARYVILLE MEM ARPT
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Hail in NODAWAY, MISSOURI
From 21-JUL-08 20:47:00 to 21-JUL-08 20:47:00 (CST-6)
Location: MARYVILLE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm Wind in ADAIR, MISSOURI
From 21-JUL-08 19:19:00 to 21-JUL-08 19:19:00 (CST-6)
Location: KIRKSVILLE
Magnitude: 51.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Thunderstorm Wind in MACON, MISSOURI
From 21-JUL-08 19:24:00 to 21-JUL-08 19:24:00 (CST-6)
Location: LA PLATA
Magnitude: 56.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Several trees were blown over in the city park.

Tornado in GRUNDY, MISSOURI
From 21-JUL-08 19:00:00 to 21-JUL-08 19:31:00 (CST-6)
Location: DUNLAP
Tornado F-scale: EF0
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

EFO tornado began at 19:00CST in open country 7 miles southeast of Spickard. The tornado traveled south-southeast to 2 miles north
of Laredo, where it dissipated at 19:31CST. This tornado was over
rural areas and damaged only trees.

Tornado in SULLIVAN, MISSOURI
From 21-JUL-08 19:23:00 to 21-JUL-08 19:30:00 (CST-6)
Location: WINIGAN
Tornado F-scale: EF0
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

An EF0 tornado touched down at 19:23CST 5 miles west of Winigan in Sullivan county. This tornado moved southeast over rural areas and crossed into Linn County at 19:30CST, 3 miles southwest of Winigan. No damage was observed, except for some tree damage.

Hail in PUTNAM, MISSOURI
From 21-JUL-08 21:25:00 to 21-JUL-08 21:25:00 (CST-6)
Location: UNIONVILLE
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio