Showers and thunderstorms developed during the afternoon and evening of July 4th and moved east across northern Virginia and western Maryland. Some became severe, producing large hail and damaging winds.

Thunderstorm Wind in ANNE ARUNDEL, MARYLAND
From 04-JUL-07 16:32:00 to 04-JUL-07 16:32:00 (EST-5)
Location: SEVERN
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: County Official

Anne Arundel County Officials reported trees down on power lines near Beverly Road and Evergreen in Severn, MD.

Thunderstorm Wind in MONTGOMERY, MARYLAND
From 04-JUL-07 18:00:00 to 04-JUL-07 18:00:00 (EST-5)
Location: GLENMONT
Magnitude: 50.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

Montgomery County Fire and Rescue reported a tree down on a power line in Glenmont, MD.

Hail in MONTGOMERY, MARYLAND
From 04-JUL-07 18:26:00 to 04-JUL-07 18:35:00 (EST-5)
Location: GLENMONT
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Employee

An off-duty NWS Employee reported penny size hail north of Glenmont. Trained Spotter and Amateur Radio operators reported penny size hail from 5 miles northwest of Beltsville to Colesville to 3 miles west of Burtonsville.

Hail in HOWARD, MARYLAND
From 04-JUL-07 18:55:00 to 04-JUL-07 18:55:00 (EST-5)
Location: NORTH LAUREL
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A Trained Spotter reported penny size hail in North Laurel, MD.

Hail in FREDERICK, MARYLAND
From 04-JUL-07 15:00:00 to 04-JUL-07 15:00:00 (EST-5)
Location: IJAMSVILLE
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A Trained Spotter measured nickel size hail near the Frederick and Montgomery County line between Clarksburg and Ijamsville.

Thunderstorm Wind in BALTIMORE CITY (C), MARYLAND
From 04-JUL-07 16:45:00 to 04-JUL-07 16:45:00 (EST-5)
Location: BALTIMORE
Magnitude: 50.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: County Official

The Baltimore City Department of Public Works reported trees down on Frederick Ave.

Funnel Cloud in MONTGOMERY, MARYLAND
From 04-JUL-07 15:30:00 to 04-JUL-07 15:40:00 (EST-5)
Location: DAMASCUS
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Unknown

A Funnel Cloud was reported southeast of Damascus. Local media also reported footage of the funnel cloud on the evening news.

Hail in MONTGOMERY, MARYLAND
From 04-JUL-07 15:10:00 to 04-JUL-07 15:10:00 (EST-5)
Location: DAMASCUS
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: County Official

Montgomery County Officials reported penny size hail in Damascus, MD.

Hail in MONTGOMERY, MARYLAND
From 04-JUL-07 15:15:00 to 04-JUL-07 15:15:00 (EST-5)
Location: DAMASCUS
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A Trained Spotter reported nickel size hail near Damascus. There were also downed tree limbs reported at the same location.

Hail in MONTGOMERY, MARYLAND
From 04-JUL-07 15:25:00 to 04-JUL-07 15:25:00 (EST-5)
Location: LAYTONSVILLE
Magnitude: 2.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

NWS Storm Survey revealed hen-egg size hail occurred between Laytonsville and Damascus.

Thunderstorm Wind in HOWARD, MARYLAND
From 04-JUL-07 15:50:00 to 04-JUL-07 15:50:00 (EST-5)
Location: DAYTON
Magnitude: 50.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Law Enforcement reported power lines down near Green Bridge Road near Dayton, MD.

Hail in HOWARD, MARYLAND
From 04-JUL-07 15:55:00 to 04-JUL-07 15:55:00 (EST-5)
Location: WEST FRIENDSHIP
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A Trained Spotter reported penny size hail southwest of West Friendship, MD.

Hail in BALTIMORE, MARYLAND
From 04-JUL-07 16:30:00 to 04-JUL-07 16:30:00 (EST-5)
Location: CATONSVILLE MANOR
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A Trained Spotter reported penny to quarter size hail near Catonsville, MD.