A warm front lifted north into Southern Pennsylvania on the 1st. The airmass was very moist and unstable by the afternoon. Scattered showers and thunderstorms developed over the region. Some of the storms produced large hail ranging from a penny to baseball size in Baltimore, Montgomery and Prince Georges Counties. The storms were also accompanied by strong winds that downed trees and power lines.

Thunderstorm Wind in PRINCE GEORGE'S, MARYLAND
From 01-JUL-04 18:14:00 to 01-JUL-04 18:14:00 (EST)
Location: FORESTVILLE
Magnitude: 65 EG
Property damage: 200K
Reported by: EMERGENCY MANAGER

Office building damaged and trees down along Route 4.

Thunderstorm Wind in BALTIMORE, MARYLAND
From 01-JUL-04 15:25:00 to 01-JUL-04 15:25:00 (EST)
Location: PARKVILLE
Magnitude: 55 EG
Property damage: 1K
Reported by: AMATEUR RADIO

Large limbs down on powerlines.

Thunderstorm Wind in PRINCE GEORGE'S, MARYLAND
From 01-JUL-04 18:18:00 to 01-JUL-04 18:18:00 (EST)
Location: LANDOVER
Magnitude: 57 EG
Property damage: .5K
Reported by: FIRE DEPT/RESCUE SQUAD

Large tree down.

Hail in MONTGOMERY, MARYLAND
From 01-JUL-04 17:20:00 to 01-JUL-04 17:20:00 (EST)
Location: WHITE OAK
Magnitude: 1.00 
Reported by: GENERAL PUBLIC

Public reported quarter size hail.

Thunderstorm Wind in BALTIMORE, MARYLAND
From 01-JUL-04 15:25:00 to 01-JUL-04 15:25:00 (EST)
Location: WHITE MARSH
Magnitude: 55 MG
Property damage: 2K
Reported by: EMERGENCY MANAGER

Trees down.

Thunderstorm Wind in BALTIMORE, MARYLAND
From 01-JUL-04 15:59:00 to 01-JUL-04 15:59:00 (EST)
Location: ESSEX
Magnitude: 58 EG
Property damage: 3K
Reported by: EMERGENCY MANAGER

Trees and powerlines down.

Hail in BALTIMORE, MARYLAND
From 01-JUL-04 15:50:00 to 01-JUL-04 15:50:00 (EST)
Location: ESSEX
Magnitude: 2.75 
Reported by: LAW ENFORCEMENT

Baseball size hail reported by law enforcement officers.

Hail in MONTGOMERY, MARYLAND
From 01-JUL-04 17:20:00 to 01-JUL-04 17:20:00 (EST)
Location: SILVER SPG
Magnitude: 0.75 
Reported by: GENERAL PUBLIC

Public reported penny size hail.

Hail in MONTGOMERY, MARYLAND
From 01-JUL-04 17:16:00 to 01-JUL-04 17:16:00 (EST)
Location: GLENMONT
Magnitude: 0.88 
Reported by: FIRE DEPT/RESCUE SQUAD

Nickel size hail reported by emergency workers.

Thunderstorm Wind in MONTGOMERY, MARYLAND
From 01-JUL-04 17:16:00 to 01-JUL-04 17:16:00 (EST)
Location: GLENMONT
Magnitude: 58 EG
Property damage: 2K
Reported by: FIRE DEPT/RESCUE SQUAD

Trees down on powerlines.

Hail in PRINCE GEORGE'S, MARYLAND
From 01-JUL-04 18:00:00 to 01-JUL-04 18:00:00 (EST)
Location: HYATTSVILLE
Magnitude: 1.25 
Reported by: BROADCAST MEDIA

Half dollar size hail reported by the media.

Hail in PRINCE GEORGE'S, MARYLAND
From 01-JUL-04 17:55:00 to 01-JUL-04 17:55:00 (EST)
Location: BLADENSBURG
Magnitude: 1.75 
Reported by: NWS EMPLOYEE(OFF DUTY)

Golfball size hail reported by NWS employee.

Hail in PRINCE GEORGE'S, MARYLAND
From 01-JUL-04 17:45:00 to 01-JUL-04 17:45:00 (EST)
Location: BELTSVILLE
Magnitude: 0.88 
Reported by: TRAINED SPOTTER

Nickel size hail reported by train spotter.

Thunderstorm Wind in PRINCE GEORGE'S, MARYLAND
From 01-JUL-04 18:27:00 to 01-JUL-04 18:27:00 (EST)
Location: SEAT PLEASANT
Magnitude: 55 EG
Property damage: 1K
Reported by: FIRE DEPT/RESCUE SQUAD

Hail in PRINCE GEORGE'S, MARYLAND
From 01-JUL-04 17:48:00 to 01-JUL-04 17:48:00 (EST)
Location: HYATTSVILLE
Magnitude: 1.75 
Reported by: NWS EMPLOYEE(OFF DUTY)

Golfball size hail reported by NWS employee.