A series of weak surface low pressure troughs over the Mid Atlantic triggered numerous showers and thunderstorms across western and central Maryland. These storms moved east into the Baltimore Metro area and south into lower southern Maryland. Some of these storms became severe, producing damaging winds and large hail.

Hail in MONTGOMERY, MARYLAND
From 13-JUN-07 13:55:00 to 13-JUN-07 13:55:00 (EST-5)
Location: SILVER SPG
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail reported at the intersection of US 29 and University Blvd.

Hail in MONTGOMERY, MARYLAND
From 13-JUN-07 14:20:00 to 13-JUN-07 14:20:00 (EST-5)
Location: BETHESDA
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Hail reported near Route 29 in Bethesda.

Hail in BALTIMORE, MARYLAND
From 13-JUN-07 16:40:00 to 13-JUN-07 16:40:00 (EST-5)
Location: OWINGS MILLS
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in ALLEGANY, MARYLAND
From 13-JUN-07 17:40:00 to 13-JUN-07 17:40:00 (EST-5)
Location: CUMBERLAND
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm Wind in MONTGOMERY, MARYLAND
From 13-JUN-07 13:45:00 to 13-JUN-07 13:45:00 (EST-5)
Location: WHITE OAK
Magnitude: 50.00 EG
Crop damage: 0.00K
Reported by: Law Enforcement

Law Enforcement reported a tree down on New Hampshire Ave in White Oak, MD.

Thunderstorm Wind in HARFORD, MARYLAND
From 13-JUN-07 15:28:00 to 13-JUN-07 15:48:00 (EST-5)
Location: BEL AIR
Magnitude: 50.00 EG
Property damage: 3.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Harford County Emergency Management reported trees down in the South Hampton Area of Bel Air and in Jarrettsville.

Tornado in BALTIMORE, MARYLAND
From 13-JUN-07 16:10:00 to 13-JUN-07 16:17:00 (EST-5)
Location: BUTLER
Tornado F-scale: EF0
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

An NWS Storm Survey concluded that a small tornado, rated at EF0, did touch down north of the town of Butler in Baltimore County. The length of damage that the tornado produced was between 1 and 2 miles, with an approximate width of 75 yards. This conclusion was reached based on fall patterns of trees, branches and the defoliation of deciduous trees. No structural damage was found and no injuries were reported.

Thunderstorm Wind in FREDERICK, MARYLAND
From 13-JUN-07 16:28:00 to 13-JUN-07 16:55:00 (EST-5)
Location: THURMONT
Magnitude: 50.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: County Official

Frederick County Officials and Emergency Management reported trees down from Thurmont to Frederick to Libertytown.

Thunderstorm Wind in BALTIMORE, MARYLAND
From 13-JUN-07 16:42:00 to 13-JUN-07 16:45:00 (EST-5)
Location: COCKEYSVILLE
Magnitude: 50.00 EG
Property damage: 2.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Emergency Management and Trained Spotters reported trees and power lines down from Cockeysville and Bentley Springs.

Thunderstorm Wind in WASHINGTON, MARYLAND
From 13-JUN-07 16:47:00 to 13-JUN-07 16:47:00 (EST-5)
Location: HAGERSTOWN
Magnitude: 50.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Emergency Management reported trees down in Long Meadow, MD.

Thunderstorm Wind in HOWARD, MARYLAND
From 13-JUN-07 17:10:00 to 13-JUN-07 17:10:00 (EST-5)
Location: COLUMBIA
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

Howard County Fire and Rescue reported a tree down on Murray Hill and Vollmerhausen.

Thunderstorm Wind in CARROLL, MARYLAND
From 13-JUN-07 16:34:00 to 13-JUN-07 16:34:00 (EST-5)
Location: UNION MILLS
Magnitude: 50.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Carroll County Emergency Management reported trees down in Deep Run Road in Union Mills, MD.

Thunderstorm Wind in MONTGOMERY, MARYLAND
From 13-JUN-07 17:30:00 to 13-JUN-07 17:30:00 (EST-5)
Location: DAMASCUS
Magnitude: 50.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: County Official

The Montgomery County 911 Center reported power wires down in Damascus, MD.

Thunderstorm Wind in ALLEGANY, MARYLAND
From 13-JUN-07 18:12:00 to 13-JUN-07 18:12:00 (EST-5)
Location: CUMBERLAND
Magnitude: 50.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A Trained Spotter reported trees down in Cumberland, MD.

Hail in PRINCE GEORGE'S, MARYLAND
From 13-JUN-07 13:00:00 to 13-JUN-07 13:00:00 (EST-5)
Location: GREENBELT
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Other Federal Agency

A meteorologist at NASA Greenbelt reported dime to quarter size hail.

Flood in ALLEGANY, MARYLAND
From 13-JUN-07 18:00:00 to 13-JUN-07 20:00:00 (EST-5)
Location: CUMBERLAND
Flood cause: Heavy Rain
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Newspaper

Newspaper articles quoted a Law Enforcement Spokesperson reporting flooding. Green Street and Kelly Road were both closed for more than an hour when they flooded at the railroad trestles. A car was stuck in high water in the Virginia Ave. subway at Industrial Bldv. Numerous reports of flooded basements were also received by Emergency Officials.