A vigorous upper level trough and cold front swept through the mid and deep South during the evening hours of the 22nd and early morning hours of the 23rd.  Multiple bands of thunderstorms, some including embedded supercells, tracked rapidly northeast at 50 to 60 mph.  Despite the storm's speed, some areas experienced multiple bouts of thunderstorms and heavy downpours.  Rainfall amounts of 1 to 2 inches were quite common, with some locations exceeding 3 or 4 inches in Madison and Jackson Counties.  Already saturated soils could not hold any further rainfall, thus runoff and flash flooding became a problem quickly after the storms began as ditches overflowed and creeks went out of their banks.  Numerous roads became impassible and were closed.

Flash Flood in MADISON, ALABAMA
From 23-JAN-12 02:10:00 to 23-JAN-12 08:00:00 (CST-6)
Location: MADISON
Flood cause: Heavy Rain
Property damage: 100.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Numerous roads and intersections were barricaded or closed due to flash flooding throughout central and northern Madison County.
In the Madison and Harvest areas, Balch and Gillispie Roads, Nance and Capshaw Roads, Gooch Lane at Hughes Road which flooded up to adjacent porches of residences, Highway 72 between Uptown and Hughes Roads, Wall Triana and Nance Roads.
In the Huntsville area:  the Memorial Parkway access road north of University Drive, Orvil Smith Road where a motorist was stranded.  Several homes were flooded in the Bristol Creek neighborhood in Owens Crossroads.
In the Gurley area: Gurley Pike and Capers Road,  Highway 72 near the Madison and Jackson County Line and at Brock Road, Maysville Road between Cooper Creek and Bell Factory Roads, Little Cove at McMullen Lane, and County Road 103.

Flash Flood in JACKSON, ALABAMA
From 23-JAN-12 04:14:00 to 23-JAN-12 08:00:00 (CST-6)
Location: PRINCETON
Flood cause: Heavy Rain
Property damage: 30.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Homes were evacuated near the intersection of Highways 79 and 35.  Volunteer fire fighters assisted people flooded in their homes at Stevens Gap, between Woodville and Limrock/Aspel.  Several roads and intersections were barricaded or closed due to flash flooding throughout west central, central and southwest Jackson County.
In the Woodville and Limrock areas:  Babe Wright and Cathedral Caverns Roads, Thomas Lane,  County Road 8. 12-18 inches of water on Highway 35.
County Road 20 was flooded in Pleasant Groves.
Several roads were flooded in Hollywood.

Hail in LAWRENCE, ALABAMA
From 23-JAN-12 02:36:00 to 23-JAN-12 02:39:00 (CST-6)
Location: MOUNTAIN HOME
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Hail up to penny size was reported.

Hail in LIMESTONE, ALABAMA
From 23-JAN-12 01:15:00 to 23-JAN-12 01:18:00 (CST-6)
Location: RIPLEY
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Quarter sized hail was reported for a brief period.

Flash Flood in LAUDERDALE, ALABAMA
From 23-JAN-12 01:24:00 to 23-JAN-12 04:30:00 (CST-6)
Location: ANDERSON
Flood cause: Heavy Rain
Property damage: 0.50K
Crop damage: 0.00K
Reported by: Emergency Manager

Flash flooding clsed County Road 52 between Highway 207 and County Road 532.

Flash Flood in MARSHALL, ALABAMA
From 23-JAN-12 05:30:00 to 23-JAN-12 08:00:00 (CST-6)
Location: HEBRON
Flood cause: Heavy Rain
Property damage: 100.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Flash flooding closed the intersection of Fishtrap and Butler Mill Roads.  Other roads between Grant and Woodville were closed.