Scattered thunderstorms moved through Northern Virginia during the evening of the 12th.  The storms contained damaging winds and hail. In Washington County, a few trees were downed on the south side of Hagerstown.  Dime sized hail fell in Mt. Aetna.  In Frederick County, a small tree was downed in Lewistown.  In Montgomery County, a large tree fell onto the Olney Theater and damaged residential quarters.  A home in Olney was also damaged when trees and power lines fell onto it.  Route 355 was closed in Germantown after trees and power lines fell onto the highway between Gunners Branch and Middlebrook roads.  Trees were downed and a the roof of a porch was blown off near Crooked Creek in Rockville.  In Howard County, several trees and power lines were downed onto roads and structures. In Savage, one house was damaged by the high winds.  In Elkridge, one house was severely damaged by a downed tree on Elkridge Heights Road.  One fire fighter who responded to the scene was injured.  In addition, an apartment building was damaged and a chimney was downed.  In Columbia, a large tree on Shaker Drive narrowly  missed falling onto a crowded porch. A 62 MPH wind gust was recorded in Laurel.  In Baltimore County, 20,000 customers lost power after trees downed power lines.  In Arbutus, a large tree fell onto a home and seriously damaged the structure. Other trees were downed onto roads and cars. Twenty trees were downed across the southern part of Baltimore.  Heavy downpours flooded roads after drains became clogged with debris. Small trees and large limbs were downed by 51 MPH  in Dundalk. A 53 MPH wind gust was recorded in Catonsville. In Harford County, quarter sized hail was reported in Edgewood.  Winds gusted as high as 55 MPH at Aberdeen Proving Grounds.  In Anne Arundel County, about 10,000 customers lost power after trees fell onto power lines in the northern portion of the county.  A wind gust of 45 MPH was recorded at BWI Airport.  Two trees were downed onto houses in Glen Burnie. In Prince George's County, trees were downed onto wires in the Bowie area.

Thunderstorm Wind in MONTGOMERY, MARYLAND
From 12-MAY-02 16:00:00 to 12-MAY-02 16:00:00 (EST)
Location: OLNEY
Property damage: 50K
Reported by: NEWSPAPER

A large tree was downed onto a building at the Olney Theatre and a home.

Thunderstorm Wind in HOWARD, MARYLAND
From 12-MAY-02 16:00:00 to 12-MAY-02 16:20:00 (EST)
Location: COUNTYWIDE
Property damage: 10K
Reported by: LAW ENFORCEMENT

Several trees were downed onto buildings and roads in Allview, Savage, Elk Ridge, and Columbia.

Thunderstorm Wind in BALTIMORE CITY (C), MARYLAND
From 12-MAY-02 16:30:00 to 12-MAY-02 16:30:00 (EST)
Location: BALTIMORE
Property damage: 10K
Reported by: PARK/FOREST SERVICE

Twenty trees and a few power lines were downed in the south portion of the city.

Thunderstorm Wind in BALTIMORE, MARYLAND
From 12-MAY-02 16:35:00 to 12-MAY-02 16:35:00 (EST)
Location: DUNDALK
Property damage: .5K
Reported by: TRAINED SPOTTER

Small trees and limbs were downed.

Hail in HARFORD, MARYLAND
From 12-MAY-02 16:45:00 to 12-MAY-02 16:45:00 (EST)
Location: EDGEWOOD
Magnitude: 1.00 
Reported by: TRAINED SPOTTER

Quarter sized hail fell.

Thunderstorm Wind in PRINCE GEORGE'S, MARYLAND
From 12-MAY-02 16:15:00 to 12-MAY-02 16:15:00 (EST)
Location: LAUREL
Magnitude: 54 M
Reported by: AWOS,ASOS,MESONET,ETC

A wind gust of 62 MPH was recorded.

Thunderstorm Wind in ANNE ARUNDEL, MARYLAND
From 12-MAY-02 16:54:00 to 12-MAY-02 16:54:00 (EST)
Location: GLEN BURNIE
Property damage: 5K
Reported by: NEWSPAPER

Two trees were downed onto homes.

Thunderstorm Wind in WASHINGTON, MARYLAND
From 12-MAY-02 17:30:00 to 12-MAY-02 17:30:00 (EST)
Location: HAGERSTOWN
Property damage: 1K
Reported by: TRAINED SPOTTER

A few trees were downed.

Thunderstorm Wind in FREDERICK, MARYLAND
From 12-MAY-02 17:40:00 to 12-MAY-02 17:40:00 (EST)
Location: LEWISTOWN
Property damage: .5K
Reported by: LAW ENFORCEMENT

A small tree was downed onto a road.

Hail in WASHINGTON, MARYLAND
From 12-MAY-02 15:28:00 to 12-MAY-02 15:28:00 (EST)
Location: BEAVER CREEK
Magnitude: 0.75 
Reported by: TRAINED SPOTTER

Dime sized hail fell in Mt. Aetna.

Thunderstorm Wind in MONTGOMERY, MARYLAND
From 12-MAY-02 15:52:00 to 12-MAY-02 15:52:00 (EST)
Location: GERMANTOWN
Property damage: 1K
Reported by: NEWSPAPER

Trees and power lines were downed onto roads.

Thunderstorm Wind in MONTGOMERY, MARYLAND
From 12-MAY-02 16:00:00 to 12-MAY-02 16:00:00 (EST)
Location: ROCKVILLE
Property damage: 5K
Reported by: NEWSPAPER

A roof was blown off a porch and trees were downed.

Thunderstorm Wind in MONTGOMERY, MARYLAND
From 12-MAY-02 16:00:00 to 12-MAY-02 16:00:00 (EST)
Location: GAITHERSBURG
Property damage: 5K
Reported by: LAW ENFORCEMENT

Several trees and power lines were downed onto roads and cars.

Thunderstorm Wind in BALTIMORE, MARYLAND
From 12-MAY-02 18:00:00 to 12-MAY-02 18:00:00 (EST)
Location: HALETHORPE
Property damage: 20K
Reported by: LAW ENFORCEMENT

Several trees were downed onto cars and roads.  One home was seriously damaged by a fallen tree.

Thunderstorm Wind in ANNE ARUNDEL, MARYLAND
From 12-MAY-02 18:00:00 to 12-MAY-02 18:00:00 (EST)
Location: JESSUP
Property damage: .5K
Reported by: TRAINED SPOTTER

Trees were downed.

Thunderstorm Wind in CARROLL, MARYLAND
From 12-MAY-02 19:00:00 to 12-MAY-02 19:00:00 (EST)
Location: ELDERSBURG
Property damage: .5K
Reported by: LAW ENFORCEMENT

Wires were downed.

Thunderstorm Wind in HOWARD, MARYLAND
From 12-MAY-02 19:15:00 to 12-MAY-02 19:15:00 (EST)
Location: ELK RIDGE
Property damage: 2K
Reported by: NEWSPAPER

A chimney collapsed onto an apartment building.

Thunderstorm Wind in PRINCE GEORGE'S, MARYLAND
From 12-MAY-02 19:20:00 to 12-MAY-02 19:20:00 (EST)
Location: BOWIE
Property damage: .5K
Reported by: LAW ENFORCEMENT

Trees were downed onto wires.