As a cold front moved across the region, a squall line developed and moved rapidly east across the forecast area. There were numerous reports of damaging winds, large hail and 8 tornadoes.

Tornado in OSAGE, MISSOURI
From 06-MAR-17 23:03:00 to 06-MAR-17 23:11:00 (CST-6)
Location: ARGYLE
Tornado F-scale: EF1
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

A small tornado formed just to the west northwest of Argyle, MO and traveled east northeast to just northeast of Freeburg, MO.  The tornado was at its strongest at the very beginning as it destroyed a hay barn, snapped and uprooted trees.  The rest of the path consisted of occasional downed trees and broken large tree limbs.  Overall, the tornado was rated EF1 with a path length of 7.26 miles and a max path width of 75 yards.

Thunderstorm Wind in SHELBY, MISSOURI
From 06-MAR-17 21:55:00 to 06-MAR-17 21:55:00 (CST-6)
Location: SHELBYVILLE
Magnitude: 56.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Thunderstorm winds blew over a large tree onto a house causing moderate damage.

Thunderstorm Wind in SHELBY, MISSOURI
From 06-MAR-17 21:58:00 to 06-MAR-17 22:03:00 (CST-6)
Location: OAKDALE
Magnitude: 65.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

Scattered wind damage extended from 3 miles west southwest of Emden to Emden. Numerous tree limbs were blown down. In Emden, several trees were blown down around town. One tree caused moderate damage to one building. Just north of Emden, there was one outbuilding that sustained minor roof damage.

Thunderstorm Wind in RALLS, MISSOURI
From 06-MAR-17 22:55:00 to 06-MAR-17 22:55:00 (CST-6)
Location: CENTER
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm winds blew down numerous large tree limbs and a couple of street signs.

Hail in BOONE, MISSOURI
From 06-MAR-17 22:07:00 to 06-MAR-17 22:07:00 (CST-6)
Location: HARRISBURG
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in BOONE, MISSOURI
From 06-MAR-17 22:20:00 to 06-MAR-17 22:20:00 (CST-6)
Location: COLUMBIA
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Thunderstorm Wind in BOONE, MISSOURI
From 06-MAR-17 22:20:00 to 06-MAR-17 22:20:00 (CST-6)
Location: COLUMBIA
Magnitude: 61.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm winds blew off portions of a roof on a strip mall at the intersection of Providence Road and Vandiver Drive.

Thunderstorm Wind in BOONE, MISSOURI
From 06-MAR-17 22:25:00 to 06-MAR-17 22:25:00 (CST-6)
Location: HALLSVILLE
Magnitude: 56.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Thunderstorm winds blew down numerous large tree limbs around town.

Hail in LEWIS, MISSOURI
From 06-MAR-17 22:25:00 to 06-MAR-17 22:25:00 (CST-6)
Location: LA GRANGE
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Social Media

Thunderstorm Wind in MARION, MISSOURI
From 06-MAR-17 22:35:00 to 06-MAR-17 22:35:00 (CST-6)
Location: HANNIBAL MUNI ARPT
Magnitude: 52.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Hail in MARION, MISSOURI
From 06-MAR-17 22:39:00 to 06-MAR-17 22:39:00 (CST-6)
Location: MUNGERS
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Hail in AUDRAIN, MISSOURI
From 06-MAR-17 22:41:00 to 06-MAR-17 22:41:00 (CST-6)
Location: MEXICO
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Thunderstorm Wind in MONITEAU, MISSOURI
From 06-MAR-17 22:32:00 to 06-MAR-17 22:32:00 (CST-6)
Location: CALIFORNIA
Magnitude: 56.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm winds caused minor damage to a roof of a building on the north side of California. The debris landed on Highway 87.

Hail in CALLAWAY, MISSOURI
From 06-MAR-17 22:42:00 to 06-MAR-17 22:42:00 (CST-6)
Location: EASTVILLE
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Hail in CALLAWAY, MISSOURI
From 06-MAR-17 22:51:00 to 06-MAR-17 22:51:00 (CST-6)
Location: FULTON
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm Wind in CALLAWAY, MISSOURI
From 06-MAR-17 22:59:00 to 06-MAR-17 22:59:00 (CST-6)
Location: TOLEDO
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm winds blew down several large tree limbs.

Thunderstorm Wind in PIKE, MISSOURI
From 06-MAR-17 23:05:00 to 06-MAR-17 23:05:00 (CST-6)
Location: FRANKFORD
Magnitude: 56.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Social Media

Thunderstorm winds overturned a 16 foot above ground pool that still had about a foot of water in it.

Thunderstorm Wind in OSAGE, MISSOURI
From 06-MAR-17 23:11:00 to 06-MAR-17 23:11:00 (CST-6)
Location: FREEBURG
Magnitude: 56.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

Thunderstorm winds blew down several large tree limbs onto County Road 636.

Tornado in MONTGOMERY, MISSOURI
From 06-MAR-17 23:17:00 to 06-MAR-17 23:23:00 (CST-6)
Location: RHINELAND
Tornado F-scale: EF1
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

The tornado developed near the baseball fields in Rhineland along Highway 94 and moved east causing damage to several trees, fences and roof of a building on the grounds. The tornado continued east paralleling Highway 94 and causing various amounts of damage to homesteads and farm buildings.  It crossed Highway 19 just north of Highway 94 and caused mainly tree damage as it crossed from Montgomery County into Warren County, about 1.5 miles east of McKittrick.

Tornado in WARREN, MISSOURI
From 06-MAR-17 23:23:00 to 06-MAR-17 23:38:00 (CST-6)
Location: CASE
Tornado F-scale: EF1
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

After crossing into Warren County from Montgomery County, it destroyed a barn and garage on Engemann Farm Road. The tornado continued east causing damage to trees along Case Road and then expanded as it crossed Massas Creek Road to nearly 150 yards.  It is at this point that the greatest tree damage occurred with numerous trees uprooted, twisted and snapped in a convergent pattern near the creek.  The tornado then crossed Highway B and Centennial Drive with more large trees uprooted and some minor damage to outbuildings and residences noted.  The tornado continued east, destroying a pole barn west of Hickory Health Ranch Road, and uprooting more trees along State Highway EE and Missouri Highway U.  The tornado crossed Highway 47 south of Warrenton causing roof damage to a building of a private campground and then dissipated east of the campground in rural Warren County.  Overall, there was a continuous path of damage observed from Rhineland (Montgomery County) to two miles south southeast of Warrenton, Missouri (east of Missouri Highway 47- Warren County).  It was rated EF1 with a path length of 21 miles and a max path width of 150 yards.

Thunderstorm Wind in LINCOLN, MISSOURI
From 06-MAR-17 23:49:00 to 06-MAR-17 23:49:00 (CST-6)
Location: TROY
Magnitude: 52.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Tornado in ST. CHARLES, MISSOURI
From 06-MAR-17 23:51:00 to 06-MAR-17 23:54:00 (CST-6)
Location: FORISTELL
Tornado F-scale: EF1
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

The second tornado associated with the small vortex developed along the South Service Road of Interstate 70 west of South Pointe Prairie Road.  The tornado crossed Interstate 70 and causing roof and siding damage to a number of homes and uprooted or snapped trees along its path as it moved east across Langtree Drive, Shadow Point Circle, Shadow Point Drive, Giotto Court, Cabot Court, Tiffany Lynn Court, Huntsdale Drive, Tiger Drive and Ivybrook Drive.  The tornado once again approached Interstate 70 causing damage to several businesses along W Pierce Blvd. The tornado crossed the interstate, flipping over a large camper trailer along Thomas RV Way and flattening several road signs.  The tornado tracked east paralleling Interstate 70, causing varying degrees of damage to buildings along Swantherville Drive and Ruggeri Drive.  The tornado then caused significant roof damage to a building along P&A Drywall Drive before crossing Interstate 70 for the third and final time.  The tornado continued east into a mobile home park where it flipped one trailer over and damaged many more.  This is where the three minor injuries occurred.  The tornado continued east northeast just to the south of West Main Street through downtown Wentzville causing mainly minor damage to many residences and businesses. The exception was a lumber business along South Church Street which took the brunt of the tornado and had a large building destroyed. The tornado finally dissipated near the intersection of E. Pitman Avenue and S. Tally Street. Overall, the tornado was rated EF1 with a path length of 3.15 miles and a max path width of 100 yards.

Thunderstorm Wind in BOONE, MISSOURI
From 06-MAR-17 22:37:00 to 06-MAR-17 22:37:00 (CST-6)
Location: ASHLAND
Magnitude: 52.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm winds blew down several large tree limbs.

Thunderstorm Wind in OSAGE, MISSOURI
From 06-MAR-17 23:12:00 to 06-MAR-17 23:25:00 (CST-6)
Location: WESTPHALIA
Magnitude: 61.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

Thunderstorm winds blew over two large pine trees onto U.S. Highway 63 south of Westphalia. Further to the east northeast, several trees were blown down along U.S. Highway 50 about 5 to 8 miles east of Linn.

Thunderstorm Wind in ST. CHARLES, MISSOURI
From 07-MAR-17 00:03:00 to 07-MAR-17 00:03:00 (CST-6)
Location: LAKE ST LOUIS
Magnitude: 60.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm Wind in ST. CHARLES, MISSOURI
From 07-MAR-17 00:18:00 to 07-MAR-17 00:18:00 (CST-6)
Location: ORCHARD FARM
Magnitude: 55.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Thunderstorm Wind in JEFFERSON, MISSOURI
From 07-MAR-17 00:26:00 to 07-MAR-17 00:29:00 (CST-6)
Location: GRUBVILLE
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

Thunderstorm winds blew down several large trees and numerous tree limbs north of Highway 30 between the Franklin/Jefferson County line and the intersection of Highway 30 and Ridge Road. Several mobile homes on Forest Hills Manor sustained minor roof damage and a couple of small metal sheds were destroyed.

Tornado in JEFFERSON, MISSOURI
From 07-MAR-17 00:29:00 to 07-MAR-17 00:32:00 (CST-6)
Location: OERMANN
Tornado F-scale: EF0
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

A weak tornado touched down along Valley Springs Drive south of Ridge Road causing trees to fall in a convergent pattern to the east northeast.  The tornado moved northeast causing trees to be uprooted, twisted and snapped.  Several homes in the track sustained minor roof and siding damage.  The greatest damage was located along Ridge Road between Dittmer Ridge Road and Sylvan Place.  The tornado lifted near Cedar Tree Drive with only minor tree damage noted. Overall, the tornado was rated EF0 with a path length of 2.63 miles and max path width of 80 yards.

Thunderstorm Wind in JEFFERSON, MISSOURI
From 07-MAR-17 00:35:00 to 07-MAR-17 00:37:00 (CST-6)
Location: WARE
Magnitude: 56.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

Thunderstorm winds blew down a number of trees and tree limbs along Reynolds Creek Road and Highway B, north northwest of Hillsboro. Also, several homes sustained minor roof damage.

Thunderstorm Wind in JEFFERSON, MISSOURI
From 07-MAR-17 00:40:00 to 07-MAR-17 00:40:00 (CST-6)
Location: HILLSBORO
Magnitude: 70.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

Thunderstorm winds caused some roof, soffit and fence damage both south and north of tornado track.

Tornado in JEFFERSON, MISSOURI
From 07-MAR-17 00:39:00 to 07-MAR-17 00:41:00 (CST-6)
Location: HILLSBORO
Tornado F-scale: EF0
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

A tornado touched down near Hillsboro High School where some trees were topped. It moved across the football field where bleachers, hurdles and other school equipment were destroyed and blown up to 300 yards down the track of the tornado.  Tree damage continued from the back side of the Hillsboro High School toward the Jefferson County Fairgrounds. Several buildings, including barns and small outbuildings suffered major roof failures and numerous trees were uprooted across the fairgrounds with debris tossed up to 200 yards to the east northeast. The tornado continued east damaging the roof of a social services building and tossing insulation in the trees.  It crossed Business Highway 21 topping more trees and causing minor roof damage to a number of homes on Micah Lane.  The tornado dissipated near Lake Wauwanoka Road with only a few limbs broken off. Overall, the tornado was rated EF0 with a path length of 1.14 miles and a max path width of 75 yards.

Thunderstorm Wind in JEFFERSON, MISSOURI
From 07-MAR-17 00:40:00 to 07-MAR-17 00:40:00 (CST-6)
Location: HOUSE SPGS ARPT
Magnitude: 65.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Thunderstorm winds blew some sheet metal off of the roof and side of a barn.

Thunderstorm Wind in JEFFERSON, MISSOURI
From 07-MAR-17 00:55:00 to 07-MAR-17 00:55:00 (CST-6)
Location: BARNHART
Magnitude: 56.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Thunderstorm winds blew down a large tree at the intersection of Highway M and U.S. Highway 61.

Thunderstorm Wind in FRANKLIN, MISSOURI
From 07-MAR-17 00:25:00 to 07-MAR-17 00:28:00 (CST-6)
Location: LUEBBERING
Magnitude: 56.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Thunderstorm winds blew down several large tree limbs. Also, a barn sustained minor roof damage off of Highway HH, just north of intersection with Highway 30.

Tornado in SHELBY, MISSOURI
From 06-MAR-17 21:40:00 to 06-MAR-17 21:56:00 (CST-6)
Location: MAUD
Tornado F-scale: EF1
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

Tornado touched down on County Road 503, just south of the intersection with Highway Y.  A barn was destroyed in this location with the damage rated EF1. The tornado tracked to the northeast causing scattered tree and building damage.  As the tornado crossed County Road 426, just west of the intersection with Highway A, it destroyed a farm outbuilding. The tornado then crossed U.S. Highway 36 and hit the South Shelby High School. The school suffered minor roof damage, a couple of storage buildings were destroyed, and the baseball field backstop was destroyed. The press box was blown off the football field bleachers and destroyed. One home just northeast of the high school had a portion of its roof blown off.  Intermittent tree and farm outbuilding damage continued until about 5.2 miles northeast of Shelbina.  One injury occurred.  A man was cut on the forehead by flying debris and required stitches. Overall, the tornado was rated EF1 with a path length of 18.47 miles and max path width of 150 yards.