An unseasonably strong upper-level trough interacted with a modestly unstable environment over the Middle Atlantic to produce several supercell thunderstorms which transitioned into small bowing line segments across far eastern West Virginia, central Maryland and northern Virginia. The storms produce substantial and relatively widespread wind damage and some hail along their path, though the storms themselves were isolated to widely scattered in nature.

Thunderstorm Wind in PRINCE GEORGE'S, MARYLAND
From 25-JUN-20 18:30:00 to 25-JUN-20 18:30:00 (EST-5)
Location: UPPER MARLBORO
Magnitude: 50.00 EG
Property damage: 2.00K
Crop damage: 0.00K
Reported by: 911 Call Center

Trees were blown down on Largo Road in Upper Marlboro.

Thunderstorm Wind in FREDERICK, MARYLAND
From 25-JUN-20 16:48:00 to 25-JUN-20 16:48:00 (EST-5)
Location: PARK MILLS
Magnitude: 55.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: 911 Call Center

Several trees and wires were blown down in the Park Mills area.

Thunderstorm Wind in MONTGOMERY, MARYLAND
From 25-JUN-20 16:53:00 to 25-JUN-20 16:53:00 (EST-5)
Location: CLARKSBURG
Magnitude: 50.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A tree was blown down blocking the northbound lane of MD-355 Frederick Road at Shawnee Lane.

Thunderstorm Wind in MONTGOMERY, MARYLAND
From 25-JUN-20 17:05:00 to 25-JUN-20 17:05:00 (EST-5)
Location: NEELSVILLE
Magnitude: 59.00 MG
Property damage: 50.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A wind gust of 59 knots (68 MPH) was measured by a mesonet in Germantown. Numerous (dozens of) trees and wires were blown down in the area.

Thunderstorm Wind in MONTGOMERY, MARYLAND
From 25-JUN-20 17:15:00 to 25-JUN-20 17:15:00 (EST-5)
Location: GAITHERSBURG
Magnitude: 61.00 MG
Property damage: 50.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A wind gust of 61 knots (70 MPH) was measured by a mesonet in Gaithersburg. Numerous trees and wires were blown down in the area.

Thunderstorm Wind in MONTGOMERY, MARYLAND
From 25-JUN-20 17:19:00 to 25-JUN-20 17:19:00 (EST-5)
Location: ROCKVILLE
Magnitude: 55.00 EG
Property damage: 25.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A large tree was uprooted in the 200 block of Autumn Wind Way. Wires and tree branches were blown down near the intersection of Seven Locks Road and Tuckerman Lane. There were multiple other reports of trees down in the Rockville area.

Thunderstorm Wind in MONTGOMERY, MARYLAND
From 25-JUN-20 17:08:00 to 25-JUN-20 17:08:00 (EST-5)
Location: DAVIS ARPT
Magnitude: 55.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Trees and wires were blown down blocking the intersection of Woodfield Road and Watkins Road.

Thunderstorm Wind in MONTGOMERY, MARYLAND
From 25-JUN-20 17:36:00 to 25-JUN-20 17:36:00 (EST-5)
Location: WOODHAVEN
Magnitude: 55.00 EG
Property damage: 250.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Numerous trees and wires were blown down (mainly uprooted trees) in the Bethesda area. Some trees damaged homes and vehicles. It was particularly focused in the Battery Park neighborhood.

Hail in MONTGOMERY, MARYLAND
From 25-JUN-20 17:38:00 to 25-JUN-20 17:38:00 (EST-5)
Location: WOODHAVEN
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Quarter size hail was reported in Bethesda.

Hail in CHARLES, MARYLAND
From 25-JUN-20 19:59:00 to 25-JUN-20 19:59:00 (EST-5)
Location: HILL TOP
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Quarter size hail was reported in Ironsides.