A weak boundary along with hot and humid air caused thunderstorms to develop. A few thunderstorms became severe due to high amounts of instability.

Hail in BALTIMORE, MARYLAND
From 03-AUG-17 16:19:00 to 03-AUG-17 16:19:00 (EST-5)
Location: PIKESVILLE
Magnitude: 1.00 
Reported by: Public

Quarter sized hail was reported.

Thunderstorm Wind in PRINCE GEORGE'S, MARYLAND
From 03-AUG-17 14:55:00 to 03-AUG-17 14:55:00 (EST-5)
Location: MTCHVLL FREEWAY ARPT
Magnitude: 50.00 EG
Reported by: 911 Call Center

A tree was down near Church Road and Mount Oak Road.

Thunderstorm Wind in BALTIMORE, MARYLAND
From 03-AUG-17 15:53:00 to 03-AUG-17 15:53:00 (EST-5)
Location: HALETHORPE
Magnitude: 50.00 EG
Reported by: 911 Call Center

Multiple downed trees were near Courtney Road and Wilkins Avenue.

Thunderstorm Wind in BALTIMORE, MARYLAND
From 03-AUG-17 15:58:00 to 03-AUG-17 15:58:00 (EST-5)
Location: OELLA
Magnitude: 50.00 EG
Reported by: 911 Call Center

A tree was down near Rolling Road and Edmondson Avenue.

Thunderstorm Wind in BALTIMORE, MARYLAND
From 03-AUG-17 16:07:00 to 03-AUG-17 16:07:00 (EST-5)
Location: WOODLAWN
Magnitude: 50.00 EG
Reported by: 911 Call Center

Multiple downed trees were near Gwynndale Avenue and Gwynn Oak Avenue.

Thunderstorm Wind in BALTIMORE, MARYLAND
From 03-AUG-17 16:22:00 to 03-AUG-17 16:22:00 (EST-5)
Location: BROOKLANDVILLE
Magnitude: 50.00 EG
Reported by: 911 Call Center

A downed tree was near Greenspring Avenue Bridle Ridge Lane.

Thunderstorm Wind in BALTIMORE, MARYLAND
From 03-AUG-17 16:26:00 to 03-AUG-17 16:26:00 (EST-5)
Location: ROGERS FORGE
Magnitude: 50.00 EG
Reported by: 911 Call Center

A tree was down near Woodbine Avenue and Allegheny Avenue.

Thunderstorm Wind in BALTIMORE, MARYLAND
From 03-AUG-17 16:29:00 to 03-AUG-17 16:29:00 (EST-5)
Location: ROGERS FORGE
Magnitude: 50.00 EG
Reported by: 911 Call Center

A tree was down near Crestwinck Road and Providence Road.

Thunderstorm Wind in BALTIMORE, MARYLAND
From 03-AUG-17 16:32:00 to 03-AUG-17 16:32:00 (EST-5)
Location: TIMONIUM
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

A tree fell onto a vehicle near Pot Spring Road and Deer Fox Lane. The tree falling onto the vehicle resulted in one fatality and three injuries.

Thunderstorm Wind in BALTIMORE, MARYLAND
From 03-AUG-17 16:32:00 to 03-AUG-17 16:32:00 (EST-5)
Location: OAKLEIGH
Magnitude: 50.00 EG
Reported by: 911 Call Center

A tree was down near Seminary Avenue and Milldam Road.

Thunderstorm Wind in BALTIMORE, MARYLAND
From 03-AUG-17 16:32:00 to 03-AUG-17 16:32:00 (EST-5)
Location: SUNNYBROOK
Magnitude: 50.00 EG
Reported by: 911 Call Center

A tree was down near Jarrettsville Pike and Dulaney Valley Road.

Thunderstorm Wind in BALTIMORE, MARYLAND
From 03-AUG-17 16:38:00 to 03-AUG-17 16:38:00 (EST-5)
Location: PADONIA
Magnitude: 50.00 EG
Reported by: Emergency Manager

Multpile trees were down along MD 146.

Thunderstorm Wind in CARROLL, MARYLAND
From 03-AUG-17 16:42:00 to 03-AUG-17 16:42:00 (EST-5)
Location: WATERSVILLE
Magnitude: 50.00 EG
Reported by: 911 Call Center

A downed tree was near Flag Marsh Road and Grimville Road.

Thunderstorm Wind in BALTIMORE, MARYLAND
From 03-AUG-17 16:48:00 to 03-AUG-17 16:48:00 (EST-5)
Location: SWEET AIR
Magnitude: 50.00 EG
Reported by: Public

Multiple trees were down in the neighborhood from Sunburst Road to Dairydale Road.

Thunderstorm Wind in HARFORD, MARYLAND
From 03-AUG-17 16:48:00 to 03-AUG-17 16:48:00 (EST-5)
Location: UPPER XRDS
Magnitude: 50.00 EG
Reported by: County Official

A tree was down along the 2900 Block of Moores Road in Baldwin.

Thunderstorm Wind in HARFORD, MARYLAND
From 03-AUG-17 16:50:00 to 03-AUG-17 16:50:00 (EST-5)
Location: RUTLEDGE
Magnitude: 50.00 EG
Reported by: County Official

A tree was down along Jarrettsville Pike and Hess Road.

Thunderstorm Wind in HARFORD, MARYLAND
From 03-AUG-17 16:50:00 to 03-AUG-17 16:50:00 (EST-5)
Location: UPPER XRDS
Magnitude: 50.00 EG
Reported by: County Official

A tree was down along the 3100 Block of Morningside Court.

Thunderstorm Wind in CARROLL, MARYLAND
From 03-AUG-17 16:55:00 to 03-AUG-17 16:55:00 (EST-5)
Location: BARRETT
Magnitude: 50.00 EG
Reported by: Trained Spotter

Several six to eight inch diameter tree limbs were down.

Thunderstorm Wind in HARFORD, MARYLAND
From 03-AUG-17 17:24:00 to 03-AUG-17 17:24:00 (EST-5)
Location: WHITEFORD
Magnitude: 50.00 EG
Reported by: County Official

A tree was down on wires.

Thunderstorm Wind in PRINCE GEORGE'S, MARYLAND
From 03-AUG-17 18:13:00 to 03-AUG-17 18:13:00 (EST-5)
Location: CONTEE
Magnitude: 50.00 EG
Reported by: Trained Spotter

Several large trees were down and uprooted.

Thunderstorm Wind in HARFORD, MARYLAND
From 04-AUG-17 16:55:00 to 04-AUG-17 16:55:00 (EST-5)
Location: UPPER XRDS
Magnitude: 50.00 EG
Reported by: 911 Call Center

A tree was down on Baldwin Mill Road and Greene Road.