An intense upper level low developed on the 28th at the base of a highly amplified upper trough across the Great Lakes and Mississippi Valley.  The upper low closed off over the mid South and tracked northeast across the Tennessee Valley during the morning of the 29th.   A warm conveyor belt of heavy rainfall developed in advance of the low which dumped from around 2 to over 5 inches of rain across the eastern two thirds of north Alabama and middle Tennessee.  The highest rain amounts were recorded in Jackson and DeKalb Counties with 3 to 5 inches.  The rain fell over 24 to 36 hour period, with rainfall remaining light to moderate during most its duration.  The rainfall resulted in minor river flooding along the Little River, Big Wills Creek and Paint Rock.   A landslide occurred on Highway 35 just north of Section in Jackson County.  A driver was trapped in his vehicle, but was rescued unharmed.  Trees, boulders and debris blocked 100 to 250 yards of Highway 35.
The rain mixed with and changed to snow across north Alabama during the afternoon and  evening hours of the 28th, and lasted into the 29th.  The heaviest bursts of snow occurred in northwest Alabama during the afternoon and evening hours, and in north central and northeast Alabama during the overnight and morning hours.  Since ground temperatures were in the 50s, and air temperatures in valley areas only dropped into the mid 30s, most of the snowfall melted on impact with mostly trace amounts reported in valley locations.  However, above 1500 foot elevation, snow accumulations of 1 to 2 inches were reported.  The heaviest amount was 2.3 inches on Monte Sano Mountain, about 5 miles northeast of Huntsville.

Winter Weather in MORGAN, ALABAMA
From 28-NOV-11 14:00:00 to 29-NOV-11 06:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

Snow accumulated from 0.7 inches (3.4 miles south-southwest of Lacey's Spring) up to 1.5 inches in Eva.  Some of this fell during the afternoon of the 28th, while additional snow fell during the early morning hours of the 29th.

Winter Weather in DEKALB, ALABAMA
From 29-NOV-11 03:00:00 to 29-NOV-11 08:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

A snow accumulation of up to 0.5 inch (Little River Canyon by the National Park Service) was reported atop Lookout Mountain in DeKalb County.  In Valley Head, the COOP observer reported 2.3 inches, much of which melted quickly and did not accumulate.

Winter Weather in LAUDERDALE, ALABAMA
From 28-NOV-11 14:00:00 to 29-NOV-11 01:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

Snow and snow pellets accumulated  up to 0.5 inches 6.6 miles west-southwest of Cloverdale.  This fell over different periods of time from the afternoon of the 28th until ending very early on the 29th.

Heavy Snow in MADISON, ALABAMA
From 28-NOV-11 20:00:00 to 29-NOV-11 04:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

Snowfall accumulations of up to 2.3 inches were reported on the higher elevations of eastern Madison County.  A snow accumulation of 1.5 inches was reported 2.7 miles south of Gurley, while 2.3 inches was reported 3 miles east of Huntsville atop Monte Sano Mountain.

Winter Weather in FRANKLIN, ALABAMA
From 28-NOV-11 23:00:00 to 29-NOV-11 04:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A snowfall of 0.8 inches was reported 3 miles southwest of Phil Campbell.

Heavy Snow in JACKSON, ALABAMA
From 28-NOV-11 21:00:00 to 29-NOV-11 08:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

Snowfall of up to 3.0 inches were reported on the higher elevations of western and northern Jackson County.  Snowfall of 2.0 inches was reported in Skyline, while 3.0 inches was reported 3.6 miles northwest of Princeton.