A low pressure system moving out of the central plains weakened as it pushed east across the forecast area. After snow began to fall across the region, warm air at low levels moved in above sub-freezing temperatures at the surface. Light to moderate snow showers caused minor accumulations during the late morning hours of January 21 before snow mixed with sleet and freezing rain and then changed over to freezing drizzle during the early morning hours of January 22. SKYWARN Spotters and Cooperative Observers reported a mixture of snow, sleet, and freezing rain and drizzle, with total accumulations ranging from 1 to 4 inches across the region.
Planes at Reagan National Airport were delayed several hours for de-icing and others cancelled during the late afternoon due to deteriorating conditions.
In northern Virginia, the ramp between Interstate 495 North (The Capitol Beltway) and Interstate 66 West was closed due to icy conditions. Also, Route 1 between Backlick Road and Fort Belvoir was closed from 3:00 PM to 5:00 PM.
Further west, a Barboursville, VA., woman was killed on Interstate 81 near Winchester, VA, in Frederick County. According to media reports, the vehicle in which she was a passenger lost control on an icy roadway and crossed the median, hitting an oncoming vehicle. Five others, 3 adults and 2 teenage males, were injured in the crash. The accident closed the north bound side of the highway for about 30 minutes, and one lane for several hours, while the scene was cleared.
Schools were closed in numerous counties across northern and central Virginia.

Winter Weather in GREENE, VIRGINIA
From 21-JAN-07 10:00:00 to 22-JAN-07 05:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter in Ruckersville, VA, reported 1.5 inches of snow and sleet.

Winter Weather in FREDERICK, VIRGINIA
From 21-JAN-07 10:00:00 to 22-JAN-07 05:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter in Cross Junction, VA, reported 1.6 inches of snow. Spotters in and around Winchester reported between 1.5 and 2 inches of snow.

Winter Weather in STAFFORD, VIRGINIA
From 21-JAN-07 10:00:00 to 22-JAN-07 05:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter in Stafford, VA, reported 1.5 inches of snow and freezing drizzle. Another spotter in Garrisonville reported 2.3 inches of snow.

Winter Weather in SPOTSYLVANIA, VIRGINIA
From 21-JAN-07 10:00:00 to 22-JAN-07 05:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter in the City of Fredericksburg, VA, reported 1.5 inches of snow and sleet.

Winter Weather in MADISON, VIRGINIA
From 21-JAN-07 10:00:00 to 22-JAN-07 05:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter in Madison, VA, reported 3.0 inches of snow and sleet.

Winter Weather in ARLINGTON, VIRGINIA
From 21-JAN-07 10:00:00 to 22-JAN-07 05:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Employee

A Spotter reported 1.6 inches of snow in Arlington, VA. An NWS Employee reported 2 inches of snow in Falls Church, VA.

Winter Weather in FAUQUIER, VIRGINIA
From 21-JAN-07 10:00:00 to 22-JAN-07 05:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Employee

An NWS Employee in Opal reported 2 inches of snow by 7 PM on January 21.

Winter Weather in PRINCE WILLIAM, VIRGINIA
From 21-JAN-07 10:00:00 to 22-JAN-07 05:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter in Haymarket, VA, at an elevation of 1100 feet, reported 2.5 inches of snow.

Winter Weather in PAGE, VIRGINIA
From 21-JAN-07 10:00:00 to 22-JAN-07 05:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter in Stanley, VA, reported 1.8 inches of snow. Another spotter in Luray, VA, reported 2.0 inches of snow and sleet.

Winter Weather in AUGUSTA, VIRGINIA
From 21-JAN-07 10:00:00 to 22-JAN-07 05:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trained Spotters in Churchville and Fishersville in Augusta County reported 1.5 inches of snow and sleet.

Winter Weather in WARREN, VIRGINIA
From 21-JAN-07 10:00:00 to 22-JAN-07 05:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter in Linden, VA, at an elevation of 1500 feet, reported 1.5 inches of snow. Another spotter in Front Royal reported 2.0 inches of snow, sleet and freezing drizzle.

Winter Weather in ROCKINGHAM, VIRGINIA
From 21-JAN-07 10:00:00 to 22-JAN-07 05:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter in Elkton, VA, reported 1.5 inches of snow and a glaze of ice with light freezing rain. Another spotter in Massanutten, VA reported 2.0 inches of snow and sleet.

Winter Weather in FAIRFAX, VIRGINIA
From 21-JAN-07 10:00:00 to 22-JAN-07 05:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Employee

A trained Spotter in the City of Fairfax reported 1.6 inches of snow. Several NWS Employees across Fairfax County reported between 1 and 2 inches of now, sleet and freezing rain during the late afternoon and into the evening of January 21st.

Winter Weather in SHENANDOAH, VIRGINIA
From 21-JAN-07 10:00:00 to 22-JAN-07 05:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter in Maurertown, VA, reported 1.5 inches of snow.