A strong surface cold front crossed the region from west to east on January 29th. As it did so, a wave of low pressure developed along the frontal boundary over southwestern Virginia and moved northeastward to a position near Philadelphia by the evening of the 29th. This led to a rain and snow mix developing ahead of the cold front, but changing over to all snow following the frontal passage. In general, 1 to 3 inches of snow were observed across central and northern Maryland, with very little to no snow reported in southern or western Maryland.

Winter Weather in FREDERICK, MARYLAND
From 29-JAN-19 12:00:00 to 29-JAN-19 19:00:00 (EST-5)
Reported by: Trained Spotter

Snowfall amounts of 2 to 3 inches were observed across Frederick County, with 3.0 inches reported near Park Mills.

Winter Weather in CARROLL, MARYLAND
From 29-JAN-19 12:00:00 to 29-JAN-19 19:00:00 (EST-5)
Reported by: Trained Spotter

Snowfall amounts of 2 to 3 inches were observed across Carroll County, with 3.3 inches reported near Manchester.

Winter Weather in NORTHWEST MONTGOMERY, MARYLAND
From 29-JAN-19 12:00:00 to 29-JAN-19 19:00:00 (EST-5)
Reported by: Trained Spotter

Snowfall amounts of 1 to 3 inches were observed across northwest Montgomery County, with 2.6 inches reported near Damascus.

Winter Weather in CENTRAL AND SOUTHEAST MONTGOMERY, MARYLAND
From 29-JAN-19 12:00:00 to 29-JAN-19 19:00:00 (EST-5)
Reported by: Trained Spotter

Snowfall amounts of 1 to 3 inches were observed across central and southeast Montgomery County, with 2.4 inches reported near Rockville.

Winter Weather in NORTHWEST HARFORD, MARYLAND
From 29-JAN-19 12:00:00 to 29-JAN-19 19:00:00 (EST-5)
Reported by: Trained Spotter

Snowfall amounts of 1 to 3 inches were observed across northwest Harford County.

Winter Weather in NORTHWEST HOWARD, MARYLAND
From 29-JAN-19 12:00:00 to 29-JAN-19 19:00:00 (EST-5)
Reported by: Trained Spotter

Snowfall amounts of 1 to 2 inches were observed across northwest Howard County, with 2.0 inches reported near Gaither.

Winter Weather in WASHINGTON, MARYLAND
From 29-JAN-19 12:00:00 to 29-JAN-19 19:00:00 (EST-5)
Reported by: Trained Spotter

Snowfall amounts of 1 to 2 inches were observed across Washington County, with 2.1 inches reported near Boonsboro.

Winter Weather in SOUTHEAST HARFORD, MARYLAND
From 29-JAN-19 12:00:00 to 29-JAN-19 19:00:00 (EST-5)
Reported by: Trained Spotter

Snowfall amounts of 1 to 3 inches were observed across southeast Harford County, with 3.1 inches reported near Bel Air.

Winter Weather in NORTHERN BALTIMORE, MARYLAND
From 29-JAN-19 12:00:00 to 29-JAN-19 19:00:00 (EST-5)
Reported by: Trained Spotter

Snowfall amounts of 1 to 3 inches were observed across northern Baltimore County, with 2.0 inches reported near Bentley Springs.

Winter Weather in SOUTHERN BALTIMORE, MARYLAND
From 29-JAN-19 12:00:00 to 29-JAN-19 19:00:00 (EST-5)
Reported by: Trained Spotter

Snowfall amounts of around 1 inch were reported across southern Baltimore County.

Winter Weather in CENTRAL AND SOUTHEAST HOWARD, MARYLAND
From 29-JAN-19 12:00:00 to 29-JAN-19 19:00:00 (EST-5)
Reported by: Trained Spotter

Snowfall amounts of around 1 inch were observed across central and southeast Howard County, with 1.0 inch reported near Columbia.