Low pressure tracked through the Ohio Valley on the 2nd before emerging off the Mid-Atlantic Coast during the early morning hours of the 3rd. The forcing from the low combined with cold air already in place to produce snow across Maryland during late afternoon hours on the 2nd into the early morning hours of the 3rd.

Winter Weather in ST. MARY'S, MARYLAND
From 02-FEB-10 17:00:00 to 03-FEB-10 04:00:00 (EST-5)
Reported by: Trained Spotter

Snowfall averaged between one and two inches across the county.

Winter Weather in HARFORD, MARYLAND
From 02-FEB-10 17:00:00 to 03-FEB-10 05:00:00 (EST-5)
Reported by: Trained Spotter

Snowfall averaged between three and four inches across the county.

Winter Storm in FREDERICK, MARYLAND
From 02-FEB-10 17:00:00 to 03-FEB-10 04:00:00 (EST-5)
Reported by: Trained Spotter

Snowfall averaged around five to seven inches across the county.

Winter Storm in CARROLL, MARYLAND
From 02-FEB-10 17:00:00 to 03-FEB-10 04:00:00 (EST-5)
Reported by: Trained Spotter

Snowfall totaled up to 5.7 inches in Mount Airy and 5.5 inches near Middleburg.

Winter Storm in NORTHERN BALTIMORE, MARYLAND
From 02-FEB-10 17:00:00 to 03-FEB-10 05:00:00 (EST-5)
Reported by: Trained Spotter

Snowfall averaged around five inches across northern Baltimore County.

Winter Storm in SOUTHERN BALTIMORE, MARYLAND
From 02-FEB-10 17:00:00 to 03-FEB-10 05:00:00 (EST-5)
Reported by: Trained Spotter

Snowfall averaged around five to six inches across the southern portion of Baltimore County.

Winter Storm in ANNE ARUNDEL, MARYLAND
From 02-FEB-10 17:00:00 to 03-FEB-10 04:00:00 (EST-5)
Reported by: Trained Spotter

Snowfall totaled around five inches across Anne Arundel County.

Winter Storm in HOWARD, MARYLAND
From 02-FEB-10 17:00:00 to 03-FEB-10 04:00:00 (EST-5)
Reported by: Trained Spotter

Snowfall averaged between five and six inches across Howard County.

Winter Storm in MONTGOMERY, MARYLAND
From 02-FEB-10 17:00:00 to 03-FEB-10 04:00:00 (EST-5)
Reported by: Trained Spotter

Snowfall averaged between five and six inches across the county.

Winter Weather in EXTREME WESTERN ALLEGANY, MARYLAND
From 02-FEB-10 17:00:00 to 03-FEB-10 04:00:00 (EST-5)
Reported by: Trained Spotter

Snowfall averaged around one to two inches across the western portion of the county.

Winter Weather in CENTRAL AND EASTERN ALLEGANY, MARYLAND
From 02-FEB-10 17:00:00 to 03-FEB-10 04:00:00 (EST-5)
Reported by: Trained Spotter

Snowfall averaged around one to two inches across the central and eastern portions of the county.

Winter Weather in PRINCE GEORGES, MARYLAND
From 02-FEB-10 17:00:00 to 03-FEB-10 04:00:00 (EST-5)
Reported by: Trained Spotter

Snowfall averaged between two and four inches across the county.

Winter Weather in CALVERT, MARYLAND
From 02-FEB-10 17:00:00 to 03-FEB-10 04:00:00 (EST-5)
Reported by: Trained Spotter

Snowfall averaged between one and two inches across the county.

Winter Weather in CHARLES, MARYLAND
From 02-FEB-10 17:00:00 to 03-FEB-10 04:00:00 (EST-5)
Reported by: Trained Spotter

Snowfall averaged between two and four inches across the county.

Winter Storm in WASHINGTON, MARYLAND
From 02-FEB-10 17:00:00 to 03-FEB-10 04:00:00 (EST-5)
Reported by: Trained Spotter

Snowfall totaled up to 5.0 inches in Smithsburg and also near Sharpsburg.