A warm front extended from a strong surface low west of Columbia, Missouri to just south of St. Louis and across Southern Illinois.  Unseasonably warm, moist, and unstable air was moving north towards central Missouri while cooler moist air was present north of the warm front. This helped to trigger severe thunderstorms along and north of the warm front, including a severe bow echo system.  The storms began to develop during the evening hours of February 28th and persisted into the late morning hours of March 1st.

Tornado in MONROE, MISSOURI
From 01-MAR-07 01:43:00 to 01-MAR-07 01:47:00 (CST-6)
Location: GRANVILLE
Tornado F-scale: EF1
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

A third tornado touched down in Monroe County about three quarters of a mile south of the intersection of County Roads 284 and 215.  A metal shed, a pole barn and a house were damaged in this location.  The tornado then traveled to the northeast damaging numerous structures, automobiles and trees along County Road 284.  One house had the entire corner of the roof and walls removed while a mobile home suffered extensive damage with one half of the structure being completely destroyed as it was flipped over.  Further northeast along County Road 239 another farm sustained damage.  A machine shed was partially destroyed with missile debris observed in a camper that was parked on the property.  The debris field stretched for 100 yards to the northeast.  Further along the path another pole barn was destroyed and a large grove of cedar trees...most of which were 1 foot in diameter...were snapped off.  Just north of the intersection of Highway 15 and County Road 386, more power poles were snapped off and a pole barn sustained minor damage to the siding and roof.  The tornado continued to the northeast and crossed into Shelby County near the intersection of County Roads 398 and 307.

Hail in CALLAWAY, MISSOURI
From 01-MAR-07 04:51:00 to 01-MAR-07 04:55:00 (CST-6)
Location: FULTON
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Quarter to golfball sized hail fell in a swath from just southwest of Fulton to 4 miles south of Williamsburg.  Some roofs and vehicles sustained hail damage.

Hail in ST. CHARLES, MISSOURI
From 01-MAR-07 08:40:00 to 01-MAR-07 08:40:00 (CST-6)
Location: ORCHARD FARM
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Tornado in MONROE, MISSOURI
From 01-MAR-07 01:40:00 to 01-MAR-07 01:45:00 (CST-6)
Location: WOODLAWN
Tornado F-scale: EF1
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

A second tornado touched down in Monroe County about 1.5 miles west of the intersection of County Roads 182 and 169 completely destroying a machine shed.  The debris area stretched approximately half a mile to the northeast from the original location.  Four cows were killed by the flying debris. As the tornado moved to the northeast, it briefly touched down a second time on County Road 211 damaging trees and a pole barn.  Debris from the pole barn was thrown over 100 yards.  The tornado then lifted and dissipated.

Hail in ST. LOUIS, MISSOURI
From 01-MAR-07 08:25:00 to 01-MAR-07 08:25:00 (CST-6)
Location: ST LOUIS SPIRIT OF S
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Reported in Chesterfield Valley just east of the Boone Bridge.

Tornado in MONROE, MISSOURI
From 01-MAR-07 01:30:00 to 01-MAR-07 01:35:00 (CST-6)
Location: MADISON
Tornado F-scale: EF0
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

A tornado first touched down along Highway K one mile west of Highway 151.  A machine shed was completely destroyed with the debris field extending some 300 yards to the south and southeast. Some pieces of the debris damaged the roof of a farm home and another machine shed on Highway K. The tornado then lifted and touched down again at the intersection of Highway 151 and County Road 136 causing slight roof damage to a home and blowing down several large tree limbs.  The tornado made a third and final touch down at the intersection of County Roads 136 and 117.  Several large pine trees were blown down at this location before the tornado lifted and dissipated.

Thunderstorm Wind in MONROE, MISSOURI
From 01-MAR-07 01:30:00 to 01-MAR-07 01:30:00 (CST-6)
Location: MADISON
Magnitude: 61.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

A microburst caused moderate damage to a machine shed along U.S. Hwy 24 two and a half miles west of Madison.  The nearby farm home sustained minor roof and siding damage.

Thunderstorm Wind in MONROE, MISSOURI
From 01-MAR-07 01:36:00 to 01-MAR-07 01:36:00 (CST-6)
Location: WOODLAWN
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

Thunderstorm winds blew down several large tree limbs and a few trees.

Thunderstorm Wind in MONROE, MISSOURI
From 01-MAR-07 01:40:00 to 01-MAR-07 01:40:00 (CST-6)
Location: WOODLAWN
Magnitude: 61.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

Thunderstorm winds damaged a grain bin and machine shed approximately 2 miles west of the intersection of Highway A and County Road 182.  The grain bin and a fuel tank were ripped loose from their moorings and pushed north-northeastward 40 to 60 yards.  Debris from the machine shed was observed as much as 50 yards to the northeast.

Tornado in SHELBY, MISSOURI
From 01-MAR-07 01:47:00 to 01-MAR-07 01:49:00 (CST-6)
Location: LAKENAN
Tornado F-scale: EF0
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

As the tornado moved into Shelby County from Monroe County, it destroyed a pole barn on U.S. Highway 36 about 2 miles west northwest of Lakenan.  The debris field stretched 150 yards to the northeast. The tornado then lifted and dissipated.

Thunderstorm Wind in MONROE, MISSOURI
From 01-MAR-07 01:43:00 to 01-MAR-07 01:43:00 (CST-6)
Location: GRANVILLE
Magnitude: 61.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

Numerous power poles were blown down along Highway A from half a mile south of the intersection of Highway A and County Road 182 to the intersection of Highways A and DD.

Hail in RALLS, MISSOURI
From 01-MAR-07 02:15:00 to 01-MAR-07 02:15:00 (CST-6)
Location: HATCH
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Thunderstorm Wind in RALLS, MISSOURI
From 01-MAR-07 02:15:00 to 01-MAR-07 02:17:00 (CST-6)
Location: HATCH
Magnitude: 61.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Thunderstorm winds caused minor damage to several buildings and trees on Linwood Lane.  As the storm moved to the east it caused minor tree damage on Cincinnati road.

Hail in CALLAWAY, MISSOURI
From 01-MAR-07 04:35:00 to 01-MAR-07 04:35:00 (CST-6)
Location: HOLTS SUMMIT
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in CALLAWAY, MISSOURI
From 01-MAR-07 04:55:00 to 01-MAR-07 04:55:00 (CST-6)
Location: MOKANE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in FRANKLIN, MISSOURI
From 01-MAR-07 07:46:00 to 01-MAR-07 07:46:00 (CST-6)
Location: UNION
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Hail in REYNOLDS, MISSOURI
From 01-MAR-07 08:00:00 to 01-MAR-07 08:00:00 (CST-6)
Location: ELLINGTON
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Hail in FRANKLIN, MISSOURI
From 01-MAR-07 08:05:00 to 01-MAR-07 08:05:00 (CST-6)
Location: GRAY SUMMIT
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in ST. CHARLES, MISSOURI
From 01-MAR-07 08:20:00 to 01-MAR-07 08:25:00 (CST-6)
Location: HARVESTER
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter