Low pressure passed through the area during the evening of the 20th into the morning hours of the 21st. There was enough cold air for precipitation to start off as snow, but warmer air eventually wrapped into the system, causing precipitation to change to a wintry mix.

Winter Weather in AUGUSTA, VIRGINIA
From 20-JAN-12 20:00:00 to 21-JAN-12 11:00:00 (EST-5)
Reported by: Unknown

Snowfall accumulation was estimated to be around one inch or less. A glaze of ice accumulation from freezing rain was also estimated.

Winter Weather in ROCKINGHAM, VIRGINIA
From 20-JAN-12 20:00:00 to 21-JAN-12 08:00:00 (EST-5)
Reported by: Unknown

Snowfall accumulation was estimated to be around one inch or less. A glaze of ice accumulation from freezing rain was also estimated.

Winter Weather in NELSON, VIRGINIA
From 20-JAN-12 20:00:00 to 21-JAN-12 11:00:00 (EST-5)
Reported by: Unknown

Snowfall accumulation was estimated to be around one inch or less. A glaze of ice accumulation from freezing rain was also estimated.

Winter Weather in ALBEMARLE, VIRGINIA
From 20-JAN-12 20:00:00 to 21-JAN-12 11:00:00 (EST-5)
Reported by: CoCoRaHS

Snowfall totaled up to 2.0 inches near Charlottesville.

Winter Weather in GREENE, VIRGINIA
From 20-JAN-12 20:00:00 to 21-JAN-12 11:00:00 (EST-5)
Reported by: CoCoRaHS

Snowfall totaled up to seven tenths of an inch near Stanardsville. A glaze of ice accumulation from freezing rain was estimated across the county.

Winter Weather in ORANGE, VIRGINIA
From 20-JAN-12 20:00:00 to 21-JAN-12 11:00:00 (EST-5)
Reported by: Trained Spotter

Ice accumulation from freezing rain totaled up to twelve hundredths of an inch.

Winter Weather in SPOTSYLVANIA, VIRGINIA
From 20-JAN-12 20:00:00 to 21-JAN-12 11:00:00 (EST-5)
Reported by: Unknown

Snow and sleet accumulations were estimated to be around an inch or less across the county. A glaze of ice accumulation from freezing rain was also estimated.

Winter Weather in STAFFORD, VIRGINIA
From 20-JAN-12 20:00:00 to 21-JAN-12 11:00:00 (EST-5)
Reported by: Public

Snow and sleet accumulations were reported to be around seven tenths of an inch near Stafford. A glaze of ice accumulation from freezing rain was also estimated.

Winter Weather in KING GEORGE, VIRGINIA
From 20-JAN-12 20:00:00 to 21-JAN-12 11:00:00 (EST-5)
Reported by: Trained Spotter

Snow and sleet accumulations were reported to be around four tenths of an at King George. A glaze of ice accumulation from freezing rain was also reported.

Winter Weather in FREDERICK, VIRGINIA
From 20-JAN-12 20:00:00 to 21-JAN-12 08:00:00 (EST-5)
Reported by: Trained Spotter

Snow and sleet accumulations averaged less than one inch across the county. Ice accumulation from freezing rain totaled up to two tenths of an inch near Nineveh.

Winter Weather in SHENANDOAH, VIRGINIA
From 20-JAN-12 20:00:00 to 21-JAN-12 08:00:00 (EST-5)
Reported by: CoCoRaHS

Snow and sleet totaled up six tenths of an inch near Strasburg. A glaze of ice accumulation from freezing rain was estimated across the county.

Winter Weather in PAGE, VIRGINIA
From 20-JAN-12 20:00:00 to 21-JAN-12 08:00:00 (EST-5)
Reported by: Unknown

Snow and sleet accumulations were estimated to be around an inch or less across the county. A glaze of ice accumulation from freezing rain was also estimated.

Winter Weather in RAPPAHANNOCK, VIRGINIA
From 20-JAN-12 20:00:00 to 21-JAN-12 08:00:00 (EST-5)
Reported by: Unknown

Snow and sleet accumulations were estimated to be around an inch or less across the county. A glaze of ice accumulation from freezing rain was also estimated.

Winter Weather in CULPEPER, VIRGINIA
From 20-JAN-12 20:00:00 to 21-JAN-12 08:00:00 (EST-5)
Reported by: Unknown

Snow and sleet accumulations were estimated to be around an inch or less across the county. A glaze of ice accumulation from freezing rain was also estimated.

Winter Weather in MADISON, VIRGINIA
From 20-JAN-12 20:00:00 to 21-JAN-12 08:00:00 (EST-5)
Reported by: Trained Spotter

Snow and sleet accumulations totaled up to 1.2 inches in Haywood. A glaze of ice accumulation from freezing rain was estimated across the county.

Winter Weather in LOUDOUN, VIRGINIA
From 20-JAN-12 22:00:00 to 21-JAN-12 08:00:00 (EST-5)
Reported by: NWS Employee

Snow and sleet accumulations totaled up to one inch at Countryside and also near Round Hill. Ice accumulation from freezing rain was reported to be around fifteen hundredths of an inch near Arcola and twelve hundredths of an inch near Dulles Airport.  Ice accumulation from freezing rain was reported to be around five hundredths of an inch in Ashburn.

Winter Weather in NORTHERN FAUQUIER, VIRGINIA
From 20-JAN-12 22:00:00 to 21-JAN-12 08:00:00 (EST-5)
Reported by: CoCoRaHS

Snowfall totaled up to one inch near Broad Run. A glaze of ice accumulation from freezing rain was estimated across the northern portion of the county.

Winter Weather in SOUTHERN FAUQUIER, VIRGINIA
From 20-JAN-12 22:00:00 to 21-JAN-12 08:00:00 (EST-5)
Reported by: Trained Spotter

Snowfall totaled up to one inch about six miles south of Warrenton. Ice accumulation from freezing rain was reported to be one tenth of an inch near Opal.

Winter Weather in PRINCE WILLIAM, VIRGINIA
From 20-JAN-12 22:00:00 to 21-JAN-12 08:00:00 (EST-5)
Reported by: CoCoRaHS

Snowfall totaled up to six tenths of an inch near Woodbridge. A glaze of ice accumulation from freezing rain was estimated across the county.

Winter Weather in FAIRFAX, VIRGINIA
From 20-JAN-12 22:00:00 to 21-JAN-12 08:00:00 (EST-5)
Reported by: Trained Spotter

Snowfall totaled up to one inch near Burke and Vienna. Ice accumulation from freezing rain was reported to be around one tenth of an inch near Herndon and fifteen hundredths of an inch in Vienna.

Winter Weather in ARLINGTON, VIRGINIA
From 20-JAN-12 22:00:00 to 21-JAN-12 08:00:00 (EST-5)
Reported by: Trained Spotter

Ice accumulation from freezing rain was reported to be at one tenth of an inch at Reagan National Airport. Ice totaled up to one tenth of an inch at near Barcroft.

Winter Weather in WARREN, VIRGINIA
From 20-JAN-12 20:00:00 to 21-JAN-12 08:00:00 (EST-5)
Reported by: Unknown

Snow and sleet accumulations were estimated to be around an inch across the county. A glaze of ice accumulation from freezing rain was also estimated.

Winter Weather in CLARKE, VIRGINIA
From 20-JAN-12 20:00:00 to 21-JAN-12 08:00:00 (EST-5)
Reported by: Trained Spotter

Snow and sleet accumulations totaled up to 1.1 inches near Berryville. A glaze of ice accumulation from freezing rain was reported near Boyce.