A cold front was moving through the region, triggering showers and thunderstorms. There were numerous reports of large hail, a tornado in Washington County Missouri and several reports of flash flooding.

Hail in COLE, MISSOURI
From 08-APR-15 10:40:00 to 08-APR-15 10:54:00 (CST-6)
Location: EUGENE
Magnitude: 2.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A wide swath of large hail fell over Cole County from the Hickory Hill/Eugene area to near St. Thomas. Golfball sized hail was reported in Eugene where some vehicles sustained dents from the hail.  In Hickory Hill, two inch hail was reported.

Hail in COLE, MISSOURI
From 08-APR-15 11:33:00 to 08-APR-15 11:33:00 (CST-6)
Location: TAOS
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Hail in OSAGE, MISSOURI
From 08-APR-15 11:45:00 to 08-APR-15 12:06:00 (CST-6)
Location: LOOSE CREEK
Magnitude: 2.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

A wide swath of golfball sized hail fell from 5 miles west of Linn to 4 miles southeast of Linn. However, two and a half inch hail was reported in Rich Fountain.

Hail in FRANKLIN, MISSOURI
From 08-APR-15 13:13:00 to 08-APR-15 13:30:00 (CST-6)
Location: SULLIVAN MEM ARPT
Magnitude: 4.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Large hail fell across Sullivan and Stanton. Most of the hail stones were between 1 and 3 inches. However, a few stones were up to 4 inches in diameter. A number of vehicles sustained major damage with broken windshields and large dents. Also, numerous homes sustained minor to moderate roof damage.

Hail in GASCONADE, MISSOURI
From 08-APR-15 12:30:00 to 08-APR-15 12:50:00 (CST-6)
Location: BLAND
Magnitude: 2.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

A wide swath of large hail from from Mount Sterling eastward to Rosebud. Baseball sized hail was reported in Mount Sterling, one inch hail was reported in Owensville, and one and a quarter inch hail was reported in Rosebud.

Hail in FRANKLIN, MISSOURI
From 08-APR-15 13:40:00 to 08-APR-15 13:50:00 (CST-6)
Location: SULLIVAN MEM ARPT
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Another severe storm moved through Sullivan within 15 minutes of the more significant storm. Hail up to an inch in diameter was reported with this storm.

Hail in WASHINGTON, MISSOURI
From 08-APR-15 14:07:00 to 08-APR-15 14:07:00 (CST-6)
Location: ANTHONIES MILL
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Tornado in WASHINGTON, MISSOURI
From 08-APR-15 14:30:00 to 08-APR-15 14:38:00 (CST-6)
Location: POTOSI
Tornado F-scale: EF1
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

The tornado formed and caused damage on the west side of Potosi. Roof shingles were blown off several church buildings, trees were downed, and a mobile home used for storage was destroyed. The tornado moved east-southeast down High Street in Potosi causing roof damage to several businesses, downed trees, power lines and business signs. The tornado crossed Highway 21 and continued along Highway 8 causing tree damage in the Spring Town Road area. About a half mile east of the Potosi city limits the tornado destroyed a building at a saw mill along Highway 8. The tornado continued for about another half mile causing tree damage and then dissipated.

Hail in WASHINGTON, MISSOURI
From 08-APR-15 14:35:00 to 08-APR-15 14:45:00 (CST-6)
Location: LATTY
Magnitude: 2.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in ST. FRANCOIS, MISSOURI
From 08-APR-15 15:00:00 to 08-APR-15 16:00:00 (CST-6)
Location: BONNE TERRE
Magnitude: 3.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A slow moving supercell moved southeast through St. Francois County dumping very large hail along its path. The largest hail stones were 3 inches in diameter. Numerous cars sustained damage including broken windshields. Also, there was a lot of roof and siding damage to homes in the path of this storm in Bonne Terre, Desloge, Park Hills, Leadington, and Farmington.

Hail in STE. GENEVIEVE, MISSOURI
From 08-APR-15 15:45:00 to 08-APR-15 15:45:00 (CST-6)
Location: WEINGARTEN
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in FRANKLIN, MISSOURI
From 08-APR-15 19:10:00 to 08-APR-15 19:10:00 (CST-6)
Location: LONEDELL
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in JEFFERSON, MISSOURI
From 08-APR-15 19:20:00 to 08-APR-15 19:20:00 (CST-6)
Location: DITTMER
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Hail in WARREN, MISSOURI
From 08-APR-15 19:25:00 to 08-APR-15 19:25:00 (CST-6)
Location: WARRENTON
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Flash Flood in ST. FRANCOIS, MISSOURI
From 08-APR-15 15:50:00 to 08-APR-15 20:00:00 (CST-6)
Location: HURRYVILLE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Up to three inches of rain fell in a short amount of time causing flash flooding in the Park Hills area. Several roads had two feet of running water over them. Also, Highway O behind Mineral Area College was briefly closed due to running water from Koen Creek when it went over its banks.

Flash Flood in WASHINGTON, MISSOURI
From 08-APR-15 16:30:00 to 08-APR-15 19:00:00 (CST-6)
Location: POTOSI
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Up to three inches of rain fell in a short amount of time causing flash flooding in Potosi. Mine A Breton Creek overflowed its banks in town onto Jefferson Street. Several water rescues had to be made in this area.

Flash Flood in STE. GENEVIEVE, MISSOURI
From 08-APR-15 16:30:00 to 08-APR-15 19:30:00 (CST-6)
Location: MINNITH
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Up to three inches of rain fell into a short amount of time causing flash flooding. Several roads were flooded. Highway N just southwest of intersection with Minnith Road was washed out when Saline Creek overflowed its banks.

Flash Flood in JEFFERSON, MISSOURI
From 08-APR-15 20:25:00 to 09-APR-15 01:00:00 (CST-6)
Location: PAULINA HILLS
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Up to two inches of rain fell in less than 2 hours causing flash flooding over northeastern Jefferson County.  Several roads were flooded including Romaine Creek Road just southwest of intersection with Saline Road. A water rescue occurred in this area.