A cold front crossed the Mid-Atlantic on the night of January 16th with high pressure building in across the northeastern United States. A wave of low pressure developing near the St. Louis area then moved eastward along the frontal boundary during the daytime hours of the 17th and into the eastern Great Lakes overnight. The combination of the cold air provided by the high pressure area to the north and the moisture and lift associated with the low pressure system generated widespread accumulating snow from late afternoon on January 17th and persisting through the first half of the night until precipitation ended and temperatures rose to near or above freezing.

Winter Weather in NORTHERN VIRGINIA BLUE RIDGE, VIRGINIA
From 17-JAN-19 15:00:00 to 18-JAN-19 02:00:00 (EST-5)
Reported by: Trained Spotter

Snowfall amounts of 1 to 2 inches were observed across the northern Virginia Blue Ridge.

Winter Weather in CENTRAL VIRGINIA BLUE RIDGE, VIRGINIA
From 17-JAN-19 15:00:00 to 18-JAN-19 02:00:00 (EST-5)
Reported by: Trained Spotter

Snowfall amounts of 1 to 2 inches were observed across the central Virginia Blue Ridge.

Winter Weather in MADISON, VIRGINIA
From 17-JAN-19 15:00:00 to 18-JAN-19 02:00:00 (EST-5)
Reported by: Trained Spotter

Snowfall amounts of 1 to 3 inches were observed across Madison County, with 2.5 inches being reported near Criglersville.

Winter Weather in GREENE, VIRGINIA
From 17-JAN-19 15:00:00 to 18-JAN-19 02:00:00 (EST-5)
Reported by: Trained Spotter

Snowfall amounts of 1 to 2 inches were observed across Greene County.

Winter Weather in NORTHERN FAUQUIER, VIRGINIA
From 17-JAN-19 16:00:00 to 18-JAN-19 02:00:00 (EST-5)
Reported by: Trained Spotter

Snowfall amounts of 1 to 2 inches were observed across northern Fauquier County.

Winter Weather in PRINCE WILLIAM, VIRGINIA
From 17-JAN-19 16:00:00 to 18-JAN-19 02:00:00 (EST-5)
Reported by: Trained Spotter

Snowfall amounts of 1 to 2 inches were observed across northern Prince William County, with 1.5 inches being reported near Woolsey.

Winter Weather in ARLINGTON, VIRGINIA
From 17-JAN-19 16:00:00 to 18-JAN-19 02:00:00 (EST-5)
Reported by: Trained Spotter

Snowfall amounts of 1 to 1.5 inches were observed across Arlington County, with 1.3 inches being reported near Baileys Crossroads.

Winter Weather in CULPEPER, VIRGINIA
From 17-JAN-19 15:00:00 to 18-JAN-19 02:00:00 (EST-5)
Reported by: Trained Spotter

Snowfall amounts of 1 to 2 inches were observed across Culpeper County, with 2.3 inches being reported near Rixeyville.

Winter Weather in SOUTHERN FAUQUIER, VIRGINIA
From 17-JAN-19 16:00:00 to 18-JAN-19 02:00:00 (EST-5)
Reported by: Trained Spotter

Snowfall amounts of 1 to 2 inches were observed across southern Fauquier County, with 1.5 inches being reported near Warrenton.

Winter Weather in WESTERN LOUDOUN, VIRGINIA
From 17-JAN-19 16:00:00 to 18-JAN-19 02:00:00 (EST-5)
Reported by: Trained Spotter

Snowfall amounts of 1 to 2 inches were observed across western Loudoun County, with 1.5 inches being reported near Bluemont.

Winter Weather in EASTERN LOUDOUN, VIRGINIA
From 17-JAN-19 16:00:00 to 18-JAN-19 02:00:00 (EST-5)
Reported by: Trained Spotter

Snowfall amounts of 1 to 2 inches were observed across eastern Loudoun County, with 1.8 inches being reported near Dulles International Airport.

Winter Weather in RAPPAHANNOCK, VIRGINIA
From 17-JAN-19 15:00:00 to 18-JAN-19 02:00:00 (EST-5)
Reported by: Trained Spotter

Snowfall amounts of 1 to 2 inches were observed across Rappahannock County.

Winter Weather in PAGE, VIRGINIA
From 17-JAN-19 15:00:00 to 18-JAN-19 02:00:00 (EST-5)
Reported by: Trained Spotter

Snowfall amounts of 1 to 2 inches were observed across Page County, with 1.5 inches being reported near Honeyville.