Early on the morning of the 19th, a warm front was lifting northward across central Missouri. A few elevated supercell storms developed on this boundary and produced large hail.
Late in the afternoon of the 19th, a sharp cold front was moving across southwestern Missouri.  A round of supercell storms initially developed ahead of this cold front before the supercells evolved into a linear line as it moved into south central Missouri.  Large hail was the main severe weather mode.

Hail in CAMDEN, MISSOURI
From 19-APR-11 01:40:00 to 19-APR-11 01:40:00 (CST-6)
Location: SUNRISE BEACH
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Hail in MORGAN, MISSOURI
From 19-APR-11 01:40:00 to 19-APR-11 01:40:00 (CST-6)
Location: GRAVOIS MILLS ARPT
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Hail in MARIES, MISSOURI
From 19-APR-11 02:32:00 to 19-APR-11 02:32:00 (CST-6)
Location: VIENNA
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Hail in MILLER, MISSOURI
From 19-APR-11 01:55:00 to 19-APR-11 01:55:00 (CST-6)
Location: BAGNELL
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Hail in MARIES, MISSOURI
From 19-APR-11 03:50:00 to 19-APR-11 03:50:00 (CST-6)
Location: VICHY
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Hail in STONE, MISSOURI
From 19-APR-11 15:22:00 to 19-APR-11 15:22:00 (CST-6)
Location: CAPE FAIR
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Hail in STONE, MISSOURI
From 19-APR-11 15:24:00 to 19-APR-11 15:24:00 (CST-6)
Location: REEDS SPG
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in STONE, MISSOURI
From 19-APR-11 16:13:00 to 19-APR-11 16:13:00 (CST-6)
Location: LAMPE
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Hail in OZARK, MISSOURI
From 19-APR-11 16:49:00 to 19-APR-11 16:49:00 (CST-6)
Location: LUTIE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Hail in PULASKI, MISSOURI
From 19-APR-11 16:25:00 to 19-APR-11 16:25:00 (CST-6)
Location: WAYNESVILLE
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in MARIES, MISSOURI
From 19-APR-11 16:52:00 to 19-APR-11 16:52:00 (CST-6)
Location: VICHY
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Hail in OZARK, MISSOURI
From 19-APR-11 17:20:00 to 19-APR-11 17:20:00 (CST-6)
Location: GAINESVILLE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Hail in OZARK, MISSOURI
From 19-APR-11 17:25:00 to 19-APR-11 17:25:00 (CST-6)
Location: ZANONI
Magnitude: 4.50 
Property damage: 25.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Windows on a car were broken from softball size hail.

Hail in HOWELL, MISSOURI
From 19-APR-11 18:58:00 to 19-APR-11 18:58:00 (CST-6)
Location: WEST PLAINS
Magnitude: 1.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in SHANNON, MISSOURI
From 19-APR-11 17:55:00 to 19-APR-11 17:55:00 (CST-6)
Location: MUNSETT
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Hail in HOWELL, MISSOURI
From 19-APR-11 19:01:00 to 19-APR-11 19:01:00 (CST-6)
Location: WEST PLAINS
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Hail in SHANNON, MISSOURI
From 19-APR-11 19:15:00 to 19-APR-11 19:15:00 (CST-6)
Location: LOW WASSIE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Post Office

Hail in STONE, MISSOURI
From 19-APR-11 16:11:00 to 19-APR-11 16:11:00 (CST-6)
Location: BLUE EYE
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Hail in PULASKI, MISSOURI
From 19-APR-11 16:15:00 to 19-APR-11 16:15:00 (CST-6)
Location: BLOODLAND
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Hail in DOUGLAS, MISSOURI
From 19-APR-11 17:05:00 to 19-APR-11 17:05:00 (CST-6)
Location: SWEDEN
Magnitude: 2.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Hail in OZARK, MISSOURI
From 19-APR-11 17:01:00 to 19-APR-11 17:01:00 (CST-6)
Location: WASOLA
Magnitude: 2.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Hail in HOWELL, MISSOURI
From 19-APR-11 17:05:00 to 19-APR-11 17:05:00 (CST-6)
Location: WILLOW SPGS
Magnitude: 2.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Hail in OZARK, MISSOURI
From 19-APR-11 17:11:00 to 19-APR-11 17:11:00 (CST-6)
Location: WASOLA
Magnitude: 2.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Thunderstorm Wind in MILLER, MISSOURI
From 19-APR-11 02:00:00 to 19-APR-11 02:00:00 (CST-6)
Location: MT PLEASANT
Magnitude: 50.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Law Enforcement

A large tree was reported down and blocking Highway M, east of town.

Thunderstorm Wind in SHANNON, MISSOURI
From 19-APR-11 17:49:00 to 19-APR-11 17:49:00 (CST-6)
Location: DELAWARE
Magnitude: 52.00 EG
Property damage: 15.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Numerous trees were reported down and blocking Highway 19 and State Highway F. Trees and power lines were reported down on Highway E between Highways 160 and 60.

Thunderstorm Wind in MARIES, MISSOURI
From 19-APR-11 02:40:00 to 19-APR-11 02:40:00 (CST-6)
Location: LANES PRAIRIE
Magnitude: 50.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Law Enforcement

A tree was reported down and blocking County Road 219 near the Z Highway intersection.

Hail in HOWELL, MISSOURI
From 19-APR-11 17:40:00 to 19-APR-11 17:40:00 (CST-6)
Location: HUTTON VLY
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Hail in TANEY, MISSOURI
From 19-APR-11 17:35:00 to 19-APR-11 17:35:00 (CST-6)
Location: PROTEM
Magnitude: 2.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Post Office

Hail in HOWELL, MISSOURI
From 19-APR-11 17:48:00 to 19-APR-11 17:48:00 (CST-6)
Location: WHITE CHURCH
Magnitude: 2.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in HOWELL, MISSOURI
From 19-APR-11 18:01:00 to 19-APR-11 18:01:00 (CST-6)
Location: MOUNTAIN VIEW
Magnitude: 2.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in HOWELL, MISSOURI
From 19-APR-11 19:31:00 to 19-APR-11 19:31:00 (CST-6)
Location: WHITE CHURCH
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager