A strong cold front, driven by an unusually strong upper-level trough and wind shear, interacted with a hot, humid, and unstable airmass over the Mid-Atlantic. This pattern resulted in the formation of lines of thunderstorms and several supercells. The most widespread and significant wind damage was noted over northern Maryland, although pockets of considerable wind damage were noted over portions of northwestern Virginia and eastern West Virginia. Somewhat atypical for the Mid-Atlantic is late summer was the number of large hail reports, with multiple instances of giant hail noted.

Hail in WASHINGTON, MARYLAND
From 07-AUG-23 14:17:00 to 07-AUG-23 14:17:00 (EST-5)
Location: PARAMT
Magnitude: 1.00 
Reported by: Trained Spotter

Quarter size hail was reported in the 18600 block of Orchard Hills Parkway.

Thunderstorm Wind in WASHINGTON, MARYLAND
From 07-AUG-23 14:20:00 to 07-AUG-23 14:20:00 (EST-5)
Location: BEAVER CREEK
Magnitude: 52.00 EG
Property damage: 2.00K
Reported by: Social Media

Trees blew down on MD-66 Mapleville Road near I-70 Dwight D. Eisenhower Highway.

Hail in WASHINGTON, MARYLAND
From 07-AUG-23 14:20:00 to 07-AUG-23 14:20:00 (EST-5)
Location: BEAVER CREEK
Magnitude: 1.50 
Reported by: Social Media

Ping pong ball size hail was reported on MD-66 Mapleville Road near I-70 Dwight D. Eisenhower Highway.

Thunderstorm Wind in CARROLL, MARYLAND
From 07-AUG-23 15:50:00 to 07-AUG-23 16:00:00 (EST-5)
Location: UNION MILLS
Magnitude: 74.00 EG
Property damage: 5.00M
Reported by: Emergency Manager

Thousands of trees, branches and wires blew down near Union Mills. Numerous trees blew down along MD-97 Littlestown Pike, including several large trees near Mayberry Road. Dozens of roads in the area were blocked by storm debris for several days. Several barns were destroyed. Several homes suffered minor roof, shingle and siding damage.

Thunderstorm Wind in CARROLL, MARYLAND
From 07-AUG-23 15:50:00 to 07-AUG-23 16:00:00 (EST-5)
Location: CRANBERRY STATION
Magnitude: 78.00 EG
Property damage: 20.00M
Reported by: Emergency Manager

Thousands of trees, branches and wires blew down near and north of Westminster. 30 utility poles snapped along MD-97/MD-140 Baltimore Boulevard near Gorsuch Road, with live wires trapping several people in their vehicles for a few hours; two people were injured. Dozens of roads in the area were blocked by storm debris for several days. Several homes suffered minor roof, shingle and siding damage. Several barns were destroyed.

Thunderstorm Wind in MONTGOMERY, MARYLAND
From 07-AUG-23 15:50:00 to 07-AUG-23 15:50:00 (EST-5)
Location: HYATTSTOWN
Magnitude: 56.00 EG
Property damage: 2.00K
Reported by: 911 Call Center

Trees and wires blew down on MD-109 Old Hundred Road at Peach Tree Road.

Thunderstorm Wind in GARRETT, MARYLAND
From 07-AUG-23 12:48:00 to 07-AUG-23 12:48:00 (EST-5)
Location: BITTINGER
Magnitude: 56.00 EG
Property damage: 6.00K
Reported by: 911 Call Center

Dung Hill Road was closed due to downed trees.

Hail in WASHINGTON, MARYLAND
From 07-AUG-23 14:32:00 to 07-AUG-23 14:32:00 (EST-5)
Location: CAVETOWN
Magnitude: 2.00 
Reported by: Public

Two-inch diamter hail was reported in the 100 block of Vody's Court.

Thunderstorm Wind in CARROLL, MARYLAND
From 07-AUG-23 15:57:00 to 07-AUG-23 15:57:00 (EST-5)
Location: WATERSVILLE
Magnitude: 52.00 EG
Property damage: 2.00K
Reported by: Trained Spotter

Trees blew down near Carroll Community College.

Thunderstorm Wind in MONTGOMERY, MARYLAND
From 07-AUG-23 15:57:00 to 07-AUG-23 15:57:00 (EST-5)
Location: POOLESVILLE
Magnitude: 52.00 EG
Property damage: 2.00K
Reported by: Trained Spotter

A large tree blew down into the roadway in the 24000 block of River Road.

Thunderstorm Wind in HARFORD, MARYLAND
From 07-AUG-23 16:20:00 to 07-AUG-23 16:25:00 (EST-5)
Location: BLACK HORSE
Magnitude: 78.00 EG
Property damage: 20.00K
Reported by: 911 Call Center

Thousands of large trees and wires blew down and snapped west of Jarrettsville, including several trees that blew onto a house in the 3100 block of MD-138 Troyer Road. Trees blew down onto a house in the 2900 block of MD-138 Troyer Road, injuring one person. Hundreds of trees blew down and snapped along Rock Ridge Road; almost all trees along this road were either toppled, or lost a signficant amount of branches.

Hail in WASHINGTON, MARYLAND
From 07-AUG-23 14:39:00 to 07-AUG-23 14:39:00 (EST-5)
Location: CAVETOWN
Magnitude: 2.00 
Reported by: Storm Chaser

Two-inch diamter hail was reported in the 23700 block of MD-77 Foxville Road.

Thunderstorm Wind in CARROLL, MARYLAND
From 07-AUG-23 15:58:00 to 07-AUG-23 15:58:00 (EST-5)
Location: HOODS MILL
Magnitude: 56.00 EG
Property damage: 5.00K
Reported by: 911 Call Center

Several trees blew down along MD-97 Old Washington Road at the Carroll/Howard County line.

Thunderstorm Wind in HOWARD, MARYLAND
From 07-AUG-23 15:59:00 to 07-AUG-23 15:59:00 (EST-5)
Location: COOKSVILLE
Magnitude: 52.00 EG
Property damage: 2.00K
Reported by: Broadcast Media

Trees blew down across MD-144 Frederick Road near MD-97 Roxbury Mills Road.

Thunderstorm Wind in WASHINGTON, MARYLAND
From 07-AUG-23 14:50:00 to 07-AUG-23 14:55:00 (EST-5)
Location: CLEAR SPG
Magnitude: 65.00 EG
Property damage: 250.00K
Reported by: 911 Call Center

Dozens of trees, wires and poles blew down in Clear Spring. Many roads were impassable.

Thunderstorm Wind in FREDERICK, MARYLAND
From 07-AUG-23 14:51:00 to 07-AUG-23 14:51:00 (EST-5)
Location: GRACEHAM
Magnitude: 52.00 EG
Property damage: 1.00K
Reported by: Amateur Radio

Tree damage was reported near Thurmont, including a tree that blew down near the intersection of Apple Church Road and Carol Street.

Thunderstorm Wind in CARROLL, MARYLAND
From 07-AUG-23 16:00:00 to 07-AUG-23 16:10:00 (EST-5)
Location: MAPLE GROVE
Magnitude: 74.00 EG
Property damage: 10.00M
Reported by: Emergency Manager

Hundreds of trees, branches and wires blew down and snapped around Manchester and Hampstead, including many onto cars and houses. Dozens of roads were blocked by storm debris for several days. Several homes suffered minor roof, shingle and siding damage. Several barns were destroyed. Numerous trees blew down near the intersection of White Oak Court and Ebbvale Road. Power poles blew down into trees near the intersection of Ralph Dell Road and Cape Horn Road.

Thunderstorm Wind in CARROLL, MARYLAND
From 07-AUG-23 16:00:00 to 07-AUG-23 16:10:00 (EST-5)
Location: ELDERSBURG
Magnitude: 61.00 EG
Property damage: 100.00K
Reported by: 911 Call Center

Dozens of trees, branches and wires blew down around Eldersburg, blocking several roads for up to a day.

Thunderstorm Wind in CARROLL, MARYLAND
From 07-AUG-23 16:00:00 to 07-AUG-23 16:10:00 (EST-5)
Location: MELROSE
Magnitude: 65.00 EG
Property damage: 100.00K
Reported by: Department of Highways

Dozens of trees blew down in the Lineboro area along the Pennsylvania state line.

Thunderstorm Wind in HOWARD, MARYLAND
From 07-AUG-23 16:00:00 to 07-AUG-23 16:10:00 (EST-5)
Location: DAISY
Magnitude: 61.00 EG
Property damage: 100.00K
Reported by: Department of Highways

Dozens of trees blew down in Glenwood and Lisbon.

Thunderstorm Wind in CARROLL, MARYLAND
From 07-AUG-23 16:01:00 to 07-AUG-23 16:01:00 (EST-5)
Location: SYKESVILLE
Magnitude: 56.00 EG
Property damage: 50.00K
Reported by: Trained Spotter

Numerous trees blew down in Sykesville, including at least one onto a house.

Thunderstorm Wind in CARROLL, MARYLAND
From 07-AUG-23 16:02:00 to 07-AUG-23 16:02:00 (EST-5)
Location: GREENMOUNT
Magnitude: 61.00 EG
Property damage: 250.00K
Reported by: Emergency Manager

Numerous trees blew down in the Hampstead area, including one onto a house causing an injury in the 2100 block of Moonlight Drive.

Thunderstorm Wind in GARRETT, MARYLAND
From 07-AUG-23 12:38:00 to 07-AUG-23 12:38:00 (EST-5)
Location: ELDEN
Magnitude: 52.00 EG
Property damage: 3.00K
Reported by: 911 Call Center

Multiple trees blew down on MD-42 Friendsville Road, closing the roadway.

Thunderstorm Wind in WASHINGTON, MARYLAND
From 07-AUG-23 15:03:00 to 07-AUG-23 15:03:00 (EST-5)
Location: LINCOLN AVENUE
Magnitude: 56.00 EG
Property damage: 12.00K
Reported by: 911 Call Center

Several trees, branches and power lines blew down between Hagerstown, Clear Spring and Williamsport.

Thunderstorm Wind in CARROLL, MARYLAND
From 07-AUG-23 16:05:00 to 07-AUG-23 16:10:00 (EST-5)
Location: CEDARHURST
Magnitude: 61.00 EG
Property damage: 100.00K
Reported by: 911 Call Center

Dozens of trees, branches and wires blew down in the Finksburg area.

Thunderstorm Wind in BALTIMORE, MARYLAND
From 07-AUG-23 16:07:00 to 07-AUG-23 16:07:00 (EST-5)
Location: HOLBROOK
Magnitude: 52.00 EG
Property damage: 2.00K
Reported by: Social Media

Trees blew down on MD-26 Liberty Road to the west of Lyons Mill Road.

Thunderstorm Wind in GARRETT, MARYLAND
From 07-AUG-23 12:43:00 to 07-AUG-23 12:43:00 (EST-5)
Location: MC HENRY
Magnitude: 52.00 EG
Property damage: 3.00K
Reported by: 911 Call Center

Trees and power lines blew down on Gravelly Run Road.

Thunderstorm Wind in GARRETT, MARYLAND
From 07-AUG-23 12:43:00 to 07-AUG-23 12:43:00 (EST-5)
Location: THAYERVILLE
Magnitude: 52.00 EG
Property damage: 2.00K
Reported by: 911 Call Center

Trees blew down on Foster Road.

Thunderstorm Wind in GARRETT, MARYLAND
From 07-AUG-23 12:43:00 to 07-AUG-23 12:43:00 (EST-5)
Location: MC HENRY
Magnitude: 61.00 EG
Property damage: 20.00K
Reported by: 911 Call Center

Numerous trees blew down between McHenry and Friendsville.

Hail in GARRETT, MARYLAND
From 07-AUG-23 12:46:00 to 07-AUG-23 12:46:00 (EST-5)
Location: OAKLAND GARRETT ARPT
Magnitude: 2.00 
Reported by: Trained Spotter

Two-inch diameter hail was reported between McHenry and Bittinger.

Thunderstorm Wind in CARROLL, MARYLAND
From 07-AUG-23 16:09:00 to 07-AUG-23 16:09:00 (EST-5)
Location: GUNPOWDER
Magnitude: 55.00 MG
Reported by: COOP Observer

A wind gust of 55 knots (63 MPH) was measured by a personal weather station at a Co-op Observer's residence.

Thunderstorm Wind in BALTIMORE, MARYLAND
From 07-AUG-23 16:15:00 to 07-AUG-23 16:20:00 (EST-5)
Location: PARKTON
Magnitude: 65.00 EG
Property damage: 250.00K
Reported by: Trained Spotter

Dozens of trees blew down around Parkton and Freeland. Trees blew down in the 19000 block of MD-45 York Road, including one onto a house.

Hail in WASHINGTON, MARYLAND
From 07-AUG-23 12:48:00 to 07-AUG-23 12:50:00 (EST-5)
Location: CLEAR SPG
Magnitude: 1.00 
Reported by: Trained Spotter

Quarter size hail was reported in the 12900 block of Draper Road.

Thunderstorm Wind in GARRETT, MARYLAND
From 07-AUG-23 12:48:00 to 07-AUG-23 12:48:00 (EST-5)
Location: ACCIDENT
Magnitude: 61.00 EG
Property damage: 50.00K
Reported by: 911 Call Center

Numerous trees and wires blew down around Accident, closing many roads.

Hail in GARRETT, MARYLAND
From 07-AUG-23 12:48:00 to 07-AUG-23 12:48:00 (EST-5)
Location: SWANTON
Magnitude: 1.50 
Reported by: Public

There were a couple of reports of hail up to ping pong ball size in the North Glade area of Swanton.

Hail in WASHINGTON, MARYLAND
From 07-AUG-23 12:53:00 to 07-AUG-23 12:53:00 (EST-5)
Location: CLEAR SPG
Magnitude: 1.25 
Reported by: Trained Spotter

Half dollar size hail was reported in the 12900 block of Draper Road.

Thunderstorm Wind in BALTIMORE, MARYLAND
From 07-AUG-23 16:15:00 to 07-AUG-23 16:20:00 (EST-5)
Location: MARYLAND LINE
Magnitude: 65.00 EG
Property damage: 250.00K
Reported by: Emergency Manager

Dozens of trees blew down in northeastern Baltimore County, including one onto a car on southbound I-83 at Exit 36/MD-439 Old York Road.

Hail in WASHINGTON, MARYLAND
From 07-AUG-23 12:54:00 to 07-AUG-23 12:54:00 (EST-5)
Location: CLEAR SPG
Magnitude: 4.00 
Reported by: Public

Softball size hail was reported north of Clear Spring.

Hail in WASHINGTON, MARYLAND
From 07-AUG-23 12:58:00 to 07-AUG-23 12:58:00 (EST-5)
Location: CHARLTON
Magnitude: 2.00 
Reported by: Storm Chaser

Two-inch diameter hail was reported on Saint Paul Road just south of I-70 Dwight D. Eisenhower Highway.

Thunderstorm Wind in GARRETT, MARYLAND
From 07-AUG-23 13:02:00 to 07-AUG-23 13:02:00 (EST-5)
Location: BOND
Magnitude: 65.00 EG
Property damage: 100.00K
Reported by: 911 Call Center

Considerable wind damage was reported along of MD-135 Maryland Highway between Swanton and Luke. Many roads in the area were closed due to downed trees and wires.

Thunderstorm Wind in GARRETT, MARYLAND
From 07-AUG-23 13:04:00 to 07-AUG-23 13:04:00 (EST-5)
Location: BIG RUN
Magnitude: 56.00 EG
Property damage: 6.00K
Reported by: 911 Call Center

Savage River Road was closed due to downed trees.

Thunderstorm Wind in FREDERICK, MARYLAND
From 07-AUG-23 15:20:00 to 07-AUG-23 15:20:00 (EST-5)
Location: HARMONY
Magnitude: 52.00 EG
Property damage: 3.00K
Reported by: Trained Spotter

Trees blew down onto power lines in the 3900 block of Wistman Lane.

Thunderstorm Wind in BALTIMORE, MARYLAND
From 07-AUG-23 16:23:00 to 07-AUG-23 16:23:00 (EST-5)
Location: ST GEORGES
Magnitude: 52.00 EG
Property damage: 20.00K
Reported by: 911 Call Center

A large tree blew down onto a structure in the 12300 block of Timber Grove Road.

Thunderstorm Wind in BALTIMORE, MARYLAND
From 07-AUG-23 16:25:00 to 07-AUG-23 16:25:00 (EST-5)
Location: RANDALLSTOWN
Magnitude: 52.00 EG
Property damage: 5.00K
Reported by: 911 Call Center

Several trees blew down near the intersection of McDonogh Road and Winands Road.

Thunderstorm Wind in MONTGOMERY, MARYLAND
From 07-AUG-23 16:25:00 to 07-AUG-23 16:35:00 (EST-5)
Location: ROCKVILLE
Magnitude: 65.00 EG
Property damage: 50.00K
Reported by: Emergency Manager

Numerous trees blew down in Rockville, including one onto a house in the 900 block of Grandin Avenue.

Thunderstorm Wind in ALLEGANY, MARYLAND
From 07-AUG-23 13:12:00 to 07-AUG-23 13:12:00 (EST-5)
Location: DETMOLD
Magnitude: 70.00 EG
Property damage: 250.00K
Reported by: 911 Call Center

Hundreds of trees blew down near Lonaconing. Most roads in the area were impassable.

Thunderstorm Wind in ALLEGANY, MARYLAND
From 07-AUG-23 13:18:00 to 07-AUG-23 13:18:00 (EST-5)
Location: MT SAVAGE
Magnitude: 52.00 EG
Property damage: 10.00K
Reported by: 911 Call Center

Several roads were closed due to downed trees between Mount Savage and Frostburg toward the Garrett County line.

Thunderstorm Wind in WASHINGTON, MARYLAND
From 07-AUG-23 13:20:00 to 07-AUG-23 13:20:00 (EST-5)
Location: BIG POOL
Magnitude: 52.00 EG
Property damage: 2.00K
Reported by: 911 Call Center

Trees blew down near the intersection of Ernstville Road and MD-56 Big Pool Road.

Thunderstorm Wind in ALLEGANY, MARYLAND
From 07-AUG-23 13:23:00 to 07-AUG-23 13:23:00 (EST-5)
Location: ALLEGHANY GROVE
Magnitude: 52.00 EG
Property damage: 5.00K
Reported by: 911 Call Center

Several trees blew down around La Vale.

Thunderstorm Wind in FREDERICK, MARYLAND
From 07-AUG-23 15:26:00 to 07-AUG-23 15:26:00 (EST-5)
Location: LANTZ
Magnitude: 55.00 MG
Reported by: AWOS

A wind gust of 55 knots (63 MPH) was measured by the AWOS at Camp David (KRSP).

Thunderstorm Wind in HARFORD, MARYLAND
From 07-AUG-23 16:27:00 to 07-AUG-23 16:27:00 (EST-5)
Location: ROCKS
Magnitude: 56.00 EG
Property damage: 10.00K
Reported by: Emergency Manager

Numerous trees blew down near Chrome Hill, including near the intersection of Sharon Road and Rock Spring Road.

Hail in WASHINGTON, MARYLAND
From 07-AUG-23 13:25:00 to 07-AUG-23 13:25:00 (EST-5)
Location: (HGR)HAGERSTOWN RGNL
Magnitude: 1.00 
Reported by: Other Federal Agency

Quarter size hail was reported at Hagerstown Regional Airport.

Thunderstorm Wind in ALLEGANY, MARYLAND
From 07-AUG-23 13:27:00 to 07-AUG-23 13:27:00 (EST-5)
Location: CUMBERLAND
Magnitude: 52.00 EG
Property damage: 10.00K
Reported by: 911 Call Center

Several trees, branches and wires blew down in Cumberland resulting in a few road closures.

Thunderstorm Wind in BALTIMORE, MARYLAND
From 07-AUG-23 16:30:00 to 07-AUG-23 16:30:00 (EST-5)
Location: HOWARDVILLE
Magnitude: 52.00 EG
Property damage: 10.00K
Reported by: 911 Call Center

A tree blew down onto a structure in the 1300 block of Sudvale Road.

Thunderstorm Wind in HARFORD, MARYLAND
From 07-AUG-23 16:33:00 to 07-AUG-23 16:38:00 (EST-5)
Location: GIBSON
Magnitude: 61.00 EG
Property damage: 500.00K
Reported by: Fire Department/Rescue

Dozens of trees blew down near Hickory, including one onto a house trapping a resident on Glendale Lane. Trees blew down onto wires bringing down a power pole near the intersection of MD-543 North Fountain Green Road and Prospect Mill Road.

Thunderstorm Wind in FREDERICK, MARYLAND
From 07-AUG-23 15:30:00 to 07-AUG-23 15:30:00 (EST-5)
Location: BELLE GROVE
Magnitude: 56.00 EG
Property damage: 5.00K
Reported by: 911 Call Center

Trees blew down onto the roadway near the intersection of MD-76 Motters Station Road and Mumma Ford Road/Appolds Road.

Thunderstorm Wind in FREDERICK, MARYLAND
From 07-AUG-23 15:31:00 to 07-AUG-23 15:31:00 (EST-5)
Location: JEFFERSON
Magnitude: 52.00 EG
Property damage: 2.00K
Reported by: 911 Call Center

Trees blew down on MD-180 Jefferson Pike near US-15/340.

Thunderstorm Wind in FREDERICK, MARYLAND
From 07-AUG-23 15:34:00 to 07-AUG-23 15:34:00 (EST-5)
Location: FREDERICK ARPT
Magnitude: 61.00 EG
Property damage: 250.00K
Reported by: 911 Call Center

There were nearly 100 calls for trees and wires blown down throughout Frederick County, Maryland, most focused east and northeast of the city of Frederick just after 4:30 PM EDT.

Thunderstorm Wind in FREDERICK, MARYLAND
From 07-AUG-23 15:34:00 to 07-AUG-23 15:34:00 (EST-5)
Location: CREAGERSTOWN
Magnitude: 56.00 EG
Property damage: 2.00K
Reported by: Amateur Radio

Trees blew down near the intersection of MD-550 Creagerstown Road and Graceham Road.

Thunderstorm Wind in HARFORD, MARYLAND
From 07-AUG-23 16:38:00 to 07-AUG-23 16:43:00 (EST-5)
Location: MILL GREEN
Magnitude: 61.00 EG
Property damage: 100.00K
Reported by: Department of Highways

Dozens of trees blew down near Pylesville and Churchville, including on MD-543 Ady Road near Doyle Road. Several trees blew down into the roadway near the intersection of MD-136 Priestford Road and Northern Dancer Drive.

Thunderstorm Wind in FREDERICK, MARYLAND
From 07-AUG-23 15:40:00 to 07-AUG-23 15:45:00 (EST-5)
Location: URBANA
Magnitude: 70.00 EG
Property damage: 100.00K
Reported by: Public

Numerous large trees down and snapped including one onto a house in the 2600 block of Thurston Road near Dixon Road.

Thunderstorm Wind in CECIL, MARYLAND
From 07-AUG-23 16:50:00 to 07-AUG-23 16:55:00 (EST-5)
Location: WEST NOTTINGHAM
Magnitude: 65.00 EG
Property damage: 250.00K
Reported by: Public

Hundreds of trees and large branches blew down around West Nottingham, including along Norman Road.

Thunderstorm Wind in CECIL, MARYLAND
From 07-AUG-23 17:00:00 to 07-AUG-23 17:05:00 (EST-5)
Location: ELKTON
Magnitude: 61.00 EG
Property damage: 100.00K
Reported by: 911 Call Center

Numerous trees blew down along MD-273 Rising Sun Road in northern Cecil County between Rising Sun and Fair Hill. Numerous trees blew down on nearby roadways, as well.

Thunderstorm Wind in FREDERICK, MARYLAND
From 07-AUG-23 15:40:00 to 07-AUG-23 15:45:00 (EST-5)
Location: WOODSBORO
Magnitude: 70.00 EG
Property damage: 250.00K
Reported by: 911 Call Center

Dozens of trees, wires and poles blew down near Woodsboro.

Thunderstorm Wind in CARROLL, MARYLAND
From 07-AUG-23 15:41:00 to 07-AUG-23 15:48:00 (EST-5)
Location: MIDDLEBURG
Magnitude: 70.00 MG
Property damage: 100.00K
Reported by: Trained Spotter

A wind gust of 70 knots (80 MPH) was measured by a personal weather station near the intersection of Sharrett Road and Crouse Mill Road in Middleburg. Dozens of trees, branches and wires blew down in the area.

Thunderstorm Wind in CECIL, MARYLAND
From 07-AUG-23 17:05:00 to 07-AUG-23 17:10:00 (EST-5)
Location: NORTH EAST
Magnitude: 52.00 EG
Property damage: 2.00K
Reported by: Department of Highways

Trees blew down near the intersection of MD-7 East Cecil Avenue and Mechanics Valley Road.

Thunderstorm Wind in CECIL, MARYLAND
From 07-AUG-23 17:07:00 to 07-AUG-23 17:07:00 (EST-5)
Location: COWENTOWN
Magnitude: 56.00 EG
Property damage: 5.00K
Reported by: Department of Highways

Trees blew down near the intersection of MD-273 Telegraph Road and Appleton Road.

Thunderstorm Wind in ANNE ARUNDEL, MARYLAND
From 07-AUG-23 17:17:00 to 07-AUG-23 17:17:00 (EST-5)
Location: DAVIDSONVILLE
Magnitude: 52.00 EG
Property damage: 10.00K
Reported by: 911 Call Center

Trees and power lines blew down around Davidsonville.

Thunderstorm Wind in ALLEGANY, MARYLAND
From 07-AUG-23 13:55:00 to 07-AUG-23 13:55:00 (EST-5)
Location: OLDTOWN
Magnitude: 61.00 EG
Property damage: 50.00K
Reported by: 911 Call Center

Numerous trees blew down blocking roadways between Flintstone and Oldtown.

Hail in WASHINGTON, MARYLAND
From 07-AUG-23 14:00:00 to 07-AUG-23 14:00:00 (EST-5)
Location: WILLIAMSPORT
Magnitude: 2.00 
Reported by: Public

Two-inch diameter hail was reported in Williamsport.

Thunderstorm Wind in FREDERICK, MARYLAND
From 07-AUG-23 15:42:00 to 07-AUG-23 15:42:00 (EST-5)
Location: NEW LONDON
Magnitude: 70.00 EG
Property damage: 250.00K
Reported by: Amateur Radio

Numerous trees blew down in the 6700 block of Oakridge Court, including at least one onto a house. Numerous trees blew down near the intersection of MD-75 Green Valley Road and Ed McClain Road.

Thunderstorm Wind in ALLEGANY, MARYLAND
From 07-AUG-23 14:08:00 to 07-AUG-23 14:08:00 (EST-5)
Location: LITTLE ORLEANS
Magnitude: 52.00 EG
Property damage: 4.00K
Reported by: 911 Call Center

Trees blew down in Little Orleans, closing roads.

Hail in WASHINGTON, MARYLAND
From 07-AUG-23 14:14:00 to 07-AUG-23 14:14:00 (EST-5)
Location: HAGERSTOWN
Magnitude: 1.00 
Reported by: Trained Spotter

Quarter size hail was reported on the northwest side of Hagerstown.

Thunderstorm Wind in CARROLL, MARYLAND
From 07-AUG-23 15:48:00 to 07-AUG-23 15:48:00 (EST-5)
Location: NEW WINDSOR
Magnitude: 56.00 EG
Property damage: 10.00K
Reported by: 911 Call Center

Several trees and wires blew down in the 200 block of South Springdale Road.

Thunderstorm Wind in CARROLL, MARYLAND
From 07-AUG-23 15:50:00 to 07-AUG-23 16:00:00 (EST-5)
Location: CRANBERRY STATION
Magnitude: 66.00 MG
Reported by: Emergency Manager

Wind gusts of up to 66 knots (76 MPH) was measured by a mesonet at the Carroll County Government offices in the 200 block of North Center Street.

Hail in WASHINGTON, MARYLAND
From 07-AUG-23 14:14:00 to 07-AUG-23 14:14:00 (EST-5)
Location: FIERY SIDING
Magnitude: 1.75 
Reported by: Trained Spotter

Golf ball size hail was reported off of Alternate US-40 Old National Pike near Funkstown.