A strong cold front moved through the region, triggering showers and thunderstorms.  Some of the storms were severe with large hail, damaging winds and flash flooding.  There were also two brief tornado touchdowns in Marion county Illinois.

Hail in ST. CHARLES, MISSOURI
From 05-FEB-08 15:34:00 to 05-FEB-08 15:34:00 (CST-6)
Location: DEFIANCE
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail was covering the ground.

Hail in ST. CHARLES, MISSOURI
From 05-FEB-08 15:41:00 to 05-FEB-08 15:50:00 (CST-6)
Location: O FALLON
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Employee

Numerous reports throughout O'Fallon of penny to nickel size hail covering the ground and causing some storm drains to be clogged...which caused ponding of water on the roadways.

Flash Flood in WARREN, MISSOURI
From 05-FEB-08 16:15:00 to 05-FEB-08 20:15:00 (CST-6)
Location: MARTHASVILLE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Two to four inches of rain fell over portions of Warren county during the afternoon and evening hours of February 5th.  A dry creek bed just southwest of Marthasville was overrunning its banks, flooding several nearby roads including Highway 94 for a time.

Flash Flood in WASHINGTON, MISSOURI
From 05-FEB-08 18:06:00 to 05-FEB-08 23:00:00 (CST-6)
Location: SPRINGTOWN
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Two to four inches of rain fell over portions of Washington county causing flash flooding.  Old Mines Creek rose quickly and flooded a portion of Highway 21 for a brief time.  Also, numerous low water crossings, ditches and creeks in the Potosi area were out of their banks for a time.

Flash Flood in IRON, MISSOURI
From 05-FEB-08 19:10:00 to 06-FEB-08 01:00:00 (CST-6)
Location: PILOT KNOB
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Two to three inches of rain fell over portions of Iron county during the evening hours of February 5th. Water 6 to 12 inches deep was reported on Highway 221 in Pilot Knob at an underpass.  Also, several low water crossings were flooded for a time in the area.

Flash Flood in MADISON, MISSOURI
From 05-FEB-08 19:22:00 to 06-FEB-08 01:00:00 (CST-6)
Location: OAK GROVE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Two to three inches of rain fell over portions of Madison county during the evening hours of February 5th.  Standing water 6 to 8 inches deep was reported on portions of Highways 67 and 72 near Fredericktown.

Flash Flood in CRAWFORD, MISSOURI
From 05-FEB-08 20:52:00 to 06-FEB-08 00:30:00 (CST-6)
Location: FOX SPGS
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Two to three inches of rain fell over portions of Crawford county during the evening of February 5th. Several roads around the Steelville area had over a foot of water flowing over them.

Hail in FRANKLIN, MISSOURI
From 05-FEB-08 15:20:00 to 05-FEB-08 15:25:00 (CST-6)
Location: WASHINGTON
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Flash Flood in ST. CHARLES, MISSOURI
From 05-FEB-08 15:36:00 to 05-FEB-08 20:15:00 (CST-6)
Location: DARDENNE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Two to four inches of rain fell over portions of St. Charles county during the afternoon and evening hours of February 5th. Dardenne Creek was out of its banks near the intersection of Highway K and Mexico Road. Also, Highway N had water flowing over it near the Bryan Road intersection.  Further east, several roads in the Portage Des Sioux area were flooded from the heavy rain.