A strong cold front moving east across the Ohio Valley stalled as it moved over the Mid Atlantic. This allowed numerous showers and thunderstorms to develop across the region during the afternoon of July 16th. Many of these storms became severe, producing large hail and damaging winds that downed large trees and power lines. One severe thunderstorm that moved across Harford County produced a tornado.

Hail in CALVERT, MARYLAND
From 16-JUL-07 15:32:00 to 16-JUL-07 15:35:00 (EST-5)
Location: ST LEONARD
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Calvert County Emergency Management relayed a public report of quarter size hail southwest of Saint Leonard, MD.

Hail in FREDERICK, MARYLAND
From 16-JUL-07 18:40:00 to 16-JUL-07 18:45:00 (EST-5)
Location: BRUNSWICK
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trained Spotters reported penny and nickel size hail in Brunswick, MD.

Thunderstorm Wind in FREDERICK, MARYLAND
From 16-JUL-07 19:15:00 to 16-JUL-07 19:20:00 (EST-5)
Location: LIBERTYTOWN
Magnitude: 50.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Frederick County Emergency Management reported trees down west of Libertytown, MD.

Thunderstorm Wind in CALVERT, MARYLAND
From 16-JUL-07 15:32:00 to 16-JUL-07 15:35:00 (EST-5)
Location: ST LEONARD
Magnitude: 50.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Calvert County Emergency Management relayed a public report of large tree limbs down southwest of Saint Leonard, MD.

Thunderstorm Wind in BALTIMORE, MARYLAND
From 16-JUL-07 16:32:00 to 16-JUL-07 16:42:00 (EST-5)
Location: PHOENIX
Magnitude: 50.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Baltimore County Emergency Management reported a tree down near Corbett Road north of Phoenix, MD., and a tree down near Old York Road near Troyer, southeast of Monkton. A Newspaper reported that more than 40 trees were downed on private property off Corbett Road in Monkton. The home on the property sustained minor damages, including a broken window and missing roof shingles.

Thunderstorm Wind in HARFORD, MARYLAND
From 16-JUL-07 17:05:00 to 16-JUL-07 17:10:00 (EST-5)
Location: FALLSTON
Magnitude: 50.00 EG
Property damage: 2.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Harford County Emergency Management reported multiple trees down near Connolly Road in Fallston.

Tornado in HARFORD, MARYLAND
From 16-JUL-07 17:15:00 to 16-JUL-07 17:27:00 (EST-5)
Location: FALLSTON
Tornado F-scale: EF1
Property damage: 10.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

An NWS Storm Survey concluded that an EF1 tornado on the Enhanced Fujita Scale occurred near Fallston, MD., on July 16th. Maximum path width was 150 yards and the length was approximately 4 miles. There was extensive tree damage, with some softwood trees snapped and many hardwoods toppled. Structural damage observed was limited to trees and limbs falling onto structures. Many power lines were also downed. No injuries were reported.

Hail in HARFORD, MARYLAND
From 16-JUL-07 17:19:00 to 16-JUL-07 17:25:00 (EST-5)
Location: FALLSTON
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A Trained Spotter reported quarter size hail in Fallston.

Thunderstorm Wind in FREDERICK, MARYLAND
From 16-JUL-07 18:35:00 to 16-JUL-07 18:40:00 (EST-5)
Location: BRUNSWICK
Magnitude: 50.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Frederick County Emergency Management reported trees down on Highway 340 north of Brunswick, MD.