An upper-level trough interacted with a stalled surface front draped over the Mid-Atlantic resulting in scattered to numerous showers and thunderstorms developing in the lee of the Appalachians Mountains as early as midday. The storms coalesced into a bow echo moved eastward across central Maryland and northern Virginia (including the DC metro) during the mid afternoon. Thunderstorms exited the area by nightfall.

Thunderstorm Wind in MONTGOMERY, MARYLAND
From 22-JUL-20 14:30:00 to 22-JUL-20 14:30:00 (EST-5)
Location: GAITHERSBURG
Magnitude: 50.00 EG
Property damage: 2.00K
Crop damage: 0.00K
Reported by: Department of Highways

A tree was blown down on MD-355 South Frederick Avenue near South Summit Avenue.

Thunderstorm Wind in MONTGOMERY, MARYLAND
From 22-JUL-20 14:45:00 to 22-JUL-20 14:45:00 (EST-5)
Location: CABIN JOHN
Magnitude: 50.00 EG
Property damage: 2.00K
Crop damage: 0.00K
Reported by: Department of Highways

Trees were blown down on I-495 Capital Beltway Outer Loop near Clara Barton Parkway.

Thunderstorm Wind in MONTGOMERY, MARYLAND
From 22-JUL-20 14:50:00 to 22-JUL-20 14:50:00 (EST-5)
Location: WOODHAVEN
Magnitude: 60.00 EG
Property damage: 100.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Numerous trees were blown down in Kensington, Bethesda and Chevy Chase, including near the I-495 Captial Beltway/I-270 Eastern Spur split, on I-270 Eastern Spur near Democracy Boulevard, on I-495 Capital Beltway and MD-187 Old Georgetown Road, and large trees and poles down on Oldfield Drive. Trees were also blown down on eastbound MD-191 Bradley Boulevard prior to Arlington Road, and a tree was also blown down on Beach Drive near Franklin Street blocking the roadway.

Thunderstorm Wind in MONTGOMERY, MARYLAND
From 22-JUL-20 15:03:00 to 22-JUL-20 15:03:00 (EST-5)
Location: GEORGETOWN JCT
Magnitude: 50.00 EG
Property damage: 3.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Trees and wires were blown down on Fenton Street near Easley Street. A tree was blown down in the 900 block of Gist Street.

Thunderstorm Wind in CHARLES, MARYLAND
From 22-JUL-20 14:59:00 to 22-JUL-20 14:59:00 (EST-5)
Location: POMFRET
Magnitude: 50.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Department of Highways

A tree was blown down on MD-227 Pomfret Road near Brierwood Road.

Thunderstorm Wind in CHARLES, MARYLAND
From 22-JUL-20 15:05:00 to 22-JUL-20 15:05:00 (EST-5)
Location: PISGAH
Magnitude: 50.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: 911 Call Center

A tree was blown down at the intersection of Mason Springs Road and Montaine Place.

Thunderstorm Wind in CHARLES, MARYLAND
From 22-JUL-20 14:56:00 to 22-JUL-20 14:56:00 (EST-5)
Location: MASON SPGS
Magnitude: 50.00 EG
Property damage: 2.00K
Crop damage: 0.00K
Reported by: Department of Highways

Trees were blown down on MD-425 Mason Springs Road between Araby Place and Gilwell Place.

Thunderstorm Wind in HOWARD, MARYLAND
From 22-JUL-20 15:03:00 to 22-JUL-20 15:03:00 (EST-5)
Location: KNOLLWOOD
Magnitude: 50.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Department of Highways

A tree was blown down on MD-97 Roxbury Mills Road near Cattail Creek Drive/Sycamore Valley Run.

Thunderstorm Wind in HOWARD, MARYLAND
From 22-JUL-20 15:21:00 to 22-JUL-20 15:21:00 (EST-5)
Location: PINE ORCHARD
Magnitude: 50.00 EG
Property damage: 2.00K
Crop damage: 0.00K
Reported by: Department of Highways

Trees were blown down on US-40 Baltimore National Pike near Turf Valley Road.

Thunderstorm Wind in HOWARD, MARYLAND
From 22-JUL-20 15:26:00 to 22-JUL-20 15:26:00 (EST-5)
Location: SIMPSONVILLE
Magnitude: 50.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: 911 Call Center

A tree blew down on Gilford Road near Edenbrook Road.

Thunderstorm Wind in HARFORD, MARYLAND
From 22-JUL-20 15:07:00 to 22-JUL-20 15:07:00 (EST-5)
Location: ROCKS
Magnitude: 50.00 EG
Property damage: 2.00K
Crop damage: 0.00K
Reported by: 911 Call Center

A 30-foot tree was blown down across the roadway near Chrome Hill.

Thunderstorm Wind in HARFORD, MARYLAND
From 22-JUL-20 15:03:00 to 22-JUL-20 15:03:00 (EST-5)
Location: PYLESVILLE
Magnitude: 50.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: 911 Call Center

Several trees and wires blew down across the roadway near Whiteford.

Thunderstorm Wind in HARFORD, MARYLAND
From 22-JUL-20 15:17:00 to 22-JUL-20 15:17:00 (EST-5)
Location: MADONNA
Magnitude: 55.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: 911 Call Center

Numerous trees were blown down in an near Jarrettsville.

Thunderstorm Wind in HARFORD, MARYLAND
From 22-JUL-20 15:33:00 to 22-JUL-20 15:33:00 (EST-5)
Location: ROCKS
Magnitude: 50.00 EG
Property damage: 3.00K
Crop damage: 0.00K
Reported by: 911 Call Center

Multiple trees were blown down near Rocks Road and Coen Road.

Thunderstorm Wind in PRINCE GEORGE'S, MARYLAND
From 22-JUL-20 15:15:00 to 22-JUL-20 15:15:00 (EST-5)
Location: CROOME
Magnitude: 50.00 EG
Property damage: 3.00K
Crop damage: 0.00K
Reported by: Department of Highways

Trees were blown down near Upper Marlboro, including on US-301 Crain Highway near Sasscer Lane, and on MD-382 Croom Road near Mattaponi Road.

Thunderstorm Wind in CALVERT, MARYLAND
From 22-JUL-20 15:33:00 to 22-JUL-20 15:33:00 (EST-5)
Location: SUNDERLAND
Magnitude: 50.00 EG
Property damage: 2.00K
Crop damage: 0.00K
Reported by: 911 Call Center

A tree was blown down on Hardesty Road near Huntingtown.

Thunderstorm Wind in BALTIMORE, MARYLAND
From 22-JUL-20 15:51:00 to 22-JUL-20 15:51:00 (EST-5)
Location: PIKESVILLE
Magnitude: 50.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: 911 Call Center

A tree was blown down on Cromwell Bridge Road between Loch Raven Boulevard and Cub Hill Road.

Thunderstorm Wind in BALTIMORE CITY (C), MARYLAND
From 22-JUL-20 15:55:00 to 22-JUL-20 15:55:00 (EST-5)
Location: CAMDEN
Magnitude: 50.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: 911 Call Center

A tree was blown down in the 800 block of West Lombard Street.

Thunderstorm Wind in BALTIMORE CITY (C), MARYLAND
From 22-JUL-20 15:53:00 to 22-JUL-20 15:53:00 (EST-5)
Location: RASPEBURG
Magnitude: 50.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: 911 Call Center

A tree was blown down in the Perring Parkway area.

Thunderstorm Wind in BALTIMORE CITY (C), MARYLAND
From 22-JUL-20 15:59:00 to 22-JUL-20 15:59:00 (EST-5)
Location: CRISP
Magnitude: 50.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: 911 Call Center

A tree was blown down on Chesapeake Road.

Thunderstorm Wind in CALVERT, MARYLAND
From 22-JUL-20 15:47:00 to 22-JUL-20 15:47:00 (EST-5)
Location: BOWENS
Magnitude: 50.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: 911 Call Center

A tree was blown down at the intersection of Sixes Road and Grays Road.

Thunderstorm Wind in CALVERT, MARYLAND
From 22-JUL-20 16:08:00 to 22-JUL-20 16:08:00 (EST-5)
Location: BROOMES IS
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Mesonet site MD045 (from the MD SHA) measured a wind gust of 50 knots (58 MPH).

Thunderstorm Wind in HARFORD, MARYLAND
From 22-JUL-20 16:14:00 to 22-JUL-20 16:14:00 (EST-5)
Location: STEPNEY
Magnitude: 50.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: 911 Call Center

A tree was blown down blocking Cranberry Road.

Thunderstorm Wind in MONTGOMERY, MARYLAND
From 22-JUL-20 14:20:00 to 22-JUL-20 14:20:00 (EST-5)
Location: DARNESTOWN
Magnitude: 65.00 EG
Property damage: 20.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Numerous trees were blown down near Dawsonville, including along Spring Meadows Drive. Some (softwood) trees were snapped.