A warm front was draped across northeast Missouri into south central Illinois. Storms developed along the boundary. Some of the storms became severe with large hail, damaging winds and 4 tornadoes.

Hail in LEWIS, MISSOURI
From 27-APR-16 20:20:00 to 27-APR-16 20:20:00 (CST-6)
Location: LA GRANGE
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in LEWIS, MISSOURI
From 27-APR-16 20:24:00 to 27-APR-16 20:24:00 (CST-6)
Location: CANTON
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Hail in ST. LOUIS, MISSOURI
From 27-APR-16 21:48:00 to 27-APR-16 21:48:00 (CST-6)
Location: FENTON
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in JEFFERSON, MISSOURI
From 27-APR-16 21:59:00 to 27-APR-16 21:59:00 (CST-6)
Location: ARNOLD
Magnitude: 1.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Tornado in KNOX, MISSOURI
From 27-APR-16 18:47:00 to 27-APR-16 18:48:00 (CST-6)
Location: GREENSBURG
Tornado F-scale: EF0
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

A tornado touched down in extreme northern Knox County causing minor tree damage before crossing into Scotland County (WFO Davenport's forecast area). In Knox County, the tornado was rated EF-0 with a path length of approximately 158 feet with a max path width of 40 yards. Overall, the tornado was rated EF-1 with winds of 90 MPH. The entire path length was 0.2 miles with a maximum path width of 40 yards.

Tornado in SHELBY, MISSOURI
From 27-APR-16 19:23:00 to 27-APR-16 19:24:00 (CST-6)
Location: EMDEN
Tornado F-scale: EF0
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

A weak tornado touched down south side of Emden and moved northeast destroying several outbuildings, uprooting large trees and damaging a church.  The tornado continued northeast causing minor tree damage and structural damage to a property one mile northeast of town before dissipating. The tornado was rated EF-0 with a path length of 0.85 miles and a max path width of 75 yards.

Hail in SHELBY, MISSOURI
From 27-APR-16 19:28:00 to 27-APR-16 19:28:00 (CST-6)
Location: SIGSBEE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in MARION, MISSOURI
From 27-APR-16 19:35:00 to 27-APR-16 19:35:00 (CST-6)
Location: NELSONVILLE
Magnitude: 1.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Ping pong sized hail caused roof damage to a house and knocked out a skylight on an RV on the property.

Hail in LEWIS, MISSOURI
From 27-APR-16 19:44:00 to 27-APR-16 19:44:00 (CST-6)
Location: EWING
Magnitude: 1.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Tornado in LEWIS, MISSOURI
From 27-APR-16 20:00:00 to 27-APR-16 20:04:00 (CST-6)
Location: MAYWOOD
Tornado F-scale: EF1
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

A tornado touched down in a farm field north of Highway O and west of Oak Avenue, which is west-northwest of Maywood.  The tornado moved east northeast directly hitting a home in its path, causing EF-1 damage by lifting a large portion of the roof from the residence.  Roofing materials were found up to a half mile to the east.  The tornado continued east northeast toward Oak Avenue causing significant tree damage.  At Oak Avenue the tornado rolled a full size tanker truck on its side and destroyed two grain bins.  The tornado continued east northeast across Olive Avenue causing additional tree damage.  The tornado dissipated a few hundred yards to the east of Olive Avenue in another farm field. The tornado was rated EF-1 with a path length of 2.01 miles and a max path width of 150 yards.

Hail in SHELBY, MISSOURI
From 27-APR-16 18:02:00 to 27-APR-16 18:02:00 (CST-6)
Location: LENTNER
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Hail in MONROE, MISSOURI
From 27-APR-16 18:07:00 to 27-APR-16 18:15:00 (CST-6)
Location: EVANSVILLE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in CRAWFORD, MISSOURI
From 27-APR-16 18:41:00 to 27-APR-16 18:41:00 (CST-6)
Location: HINCH
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Mostly three quarter inch hail, but a few stones that were an inch in diameter.

Hail in LEWIS, MISSOURI
From 27-APR-16 18:51:00 to 27-APR-16 18:51:00 (CST-6)
Location: MONTICELLO
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in SHELBY, MISSOURI
From 27-APR-16 19:00:00 to 27-APR-16 19:00:00 (CST-6)
Location: SHELBINA
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Social Media

Hail in KNOX, MISSOURI
From 27-APR-16 19:13:00 to 27-APR-16 19:14:00 (CST-6)
Location: BARING
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: 911 Call Center