A mesoscale convective complex developed and moved east across the forecast area.  There were numerous reports of damaging winds, large hail, flash flooding and one tornado.

Hail in ST. LOUIS, MISSOURI
From 03-APR-14 19:05:00 to 03-APR-14 19:21:00 (CST-6)
Location: TWIN OAKS
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in ST. LOUIS, MISSOURI
From 03-APR-14 19:10:00 to 03-APR-14 19:19:00 (CST-6)
Location: DES PERES
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in CRAWFORD, MISSOURI
From 03-APR-14 19:19:00 to 03-APR-14 19:19:00 (CST-6)
Location: CUBA
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Flash Flood in MONITEAU, MISSOURI
From 03-APR-14 03:15:00 to 03-APR-14 08:00:00 (CST-6)
Location: TIPTON
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Up to four inches of rain fell in a short amount of time causing flash flooding.  U.S. Highway 50 had a foot of water flowing over it about a mile west of Tipton.

Flash Flood in BOONE, MISSOURI
From 03-APR-14 06:30:00 to 03-APR-14 08:00:00 (CST-6)
Location: ROCHEPORT
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Up to four inches of rain fell in a short amount of time causing flash flooding.  Several roads were closed due to water over the roadways in the south half of Boone County.

Flash Flood in FRANKLIN, MISSOURI
From 03-APR-14 12:55:00 to 04-APR-14 05:00:00 (CST-6)
Location: JAPAN
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Up to five inches of rain fell in a short amount of time causing flash flooding.  Elmont Road at the intersection with Deer Path was washed out by the flooding rains. Several roads in the area were closed due to flooding.

Flash Flood in WASHINGTON, MISSOURI
From 03-APR-14 13:30:00 to 04-APR-14 05:00:00 (CST-6)
Location: RICHWOODS
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Up to five inches of rain fell in a short amount of time causing flash flooding.  Several roads were flooded including Highway 185 between Pea Ridge and Caseyville.

Hail in JEFFERSON, MISSOURI
From 03-APR-14 11:06:00 to 03-APR-14 11:06:00 (CST-6)
Location: ARNOLD
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in FRANKLIN, MISSOURI
From 03-APR-14 12:25:00 to 03-APR-14 12:25:00 (CST-6)
Location: VILLA RIDGE
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Hail in ST. CHARLES, MISSOURI
From 03-APR-14 12:37:00 to 03-APR-14 12:39:00 (CST-6)
Location: KLONDIKE
Magnitude: 2.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Baseball sized hail produced holes in siding on several homes.  Also, the hail damaged vinyl window sills and gutters.

Thunderstorm Wind in COLE, MISSOURI
From 03-APR-14 16:45:00 to 03-APR-14 16:45:00 (CST-6)
Location: ST THOMAS
Magnitude: 56.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm winds blew down several trees in St. Thomas.

Thunderstorm Wind in OSAGE, MISSOURI
From 03-APR-14 16:48:00 to 03-APR-14 16:48:00 (CST-6)
Location: META
Magnitude: 56.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm winds blew down several 18 to 20 inch diameter trees in Meta.

Hail in KNOX, MISSOURI
From 03-APR-14 17:25:00 to 03-APR-14 17:25:00 (CST-6)
Location: NOVELTY
Magnitude: 1.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in LEWIS, MISSOURI
From 03-APR-14 17:37:00 to 03-APR-14 17:37:00 (CST-6)
Location: LA BELLE
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in FRANKLIN, MISSOURI
From 03-APR-14 18:35:00 to 03-APR-14 18:35:00 (CST-6)
Location: GRAY SUMMIT
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Hail in ST. LOUIS, MISSOURI
From 03-APR-14 19:00:00 to 03-APR-14 19:03:00 (CST-6)
Location: BALLWIN
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm Wind in ST. LOUIS, MISSOURI
From 03-APR-14 19:23:00 to 03-APR-14 19:23:00 (CST-6)
Location: UNIVERSITY CITY
Magnitude: 64.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in CALLAWAY, MISSOURI
From 03-APR-14 02:35:00 to 03-APR-14 02:35:00 (CST-6)
Location: MOKANE
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Tornado in ST. LOUIS, MISSOURI
From 03-APR-14 04:19:00 to 03-APR-14 04:21:00 (CST-6)
Location: VINITA PARK
Tornado F-scale: EF1
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

A weak tornado touched down just west of Interstate 170 in the backyard of a residence on Stoneleigh Towers St. at 5:19 a.m. CDT, uprooting several large mature hardwood trees and topping a large pine tree.  It crossed Interstate 170 and caused minor damage to trees and roofs in an apartment complex and adjacent office building along Old Towne Dr.  The tornado then caused more significant tree damage east along Rowland Drive toward N. McKnight Road.  A few houses were hit by trees causing significant damage. The tornado grew to its largest width, about 100 yards, while crossing N. McKnight Road.  It is here that the most concentrated damage occurred with many houses loosing siding, roofing and having windows blown out by debris.  Many large trees were uprooted and one tree adjacent to the Ruth Park Golf Club experienced significant twisting of the branches. The tornado continued east causing similar damage along Charters Ave.  The tornado then weakened and dissipated at 5:21 a.m. after uprooting several large trees in the Ruth Park Golf Club.  A total of 100 buildings were damaged by the tornado and damaging straight line thunderstorm winds, 20 had significant damage, and several cars were destroyed by falling trees or large limbs. Overall, the maximum intensity was EF1 with a total path length of 0.63 miles.  The max path width was 100 yards.

Thunderstorm Wind in ST. LOUIS, MISSOURI
From 03-APR-14 04:16:00 to 03-APR-14 04:16:00 (CST-6)
Location: OLIVETTE
Magnitude: 65.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Thunderstorm winds blew down several large trees and numerous power lines.