An area of low pressure formed over the area in response to an impressive longwave trough approaching from the west. A line of low-topped showers and thunderstorms formed along the system's cold front, leading to the formation of multiple tornadoes within the high shear-low CAPE environment. These tornadoes, along with straight-line winds from other storms, produced widespread damage across much of central and northern Maryland.

Tornado in MONTGOMERY, MARYLAND
From 07-FEB-20 07:28:00 to 07-FEB-20 07:29:00 (EST-5)
Location: WHITES FERRY
Tornado F-scale: EF1
Property damage: 92.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

Staff from NOAA's National Weather Service Baltimore/Washington
Weather Forecast Office located in Sterling, VA performed a survey
of storm damage that occurred in western Montgomery County MD
near Dickerson. This survey, coupled with radar analysis from the
KLWX WSR-88D radar and an FAA Terminal Doppler Weather Radar
(TIAD), concluded that a tornado rated EF1 on the Enhanced Fujita
Scale impacted portions of extreme western Montgomery County MD
near Dickerson.
Initial damage was noted in trees just west of a farm near the
Potomac River off Martinsburg Road. A large barn used to house
horses lost all of its roof while an adjacent open-air pole barn
was flattened. Several small outbuildings were destroyed.
Bleachers at a horse showing facility were overturned. A metal
frame windmill tower was toppled. Numerous trees, both hardwood
and softwood, were either uprooted or snapped. Then the tornado
moved northeast across open fields. It then crossed Martinsburg
Rd near a farmhouse where several large trees were uprooted and a
farmhouse lost many shingles. No damage was noted past the farm
house.
This tornado was not the same one that struck near Leesburg, VA
earlier. Rather it was a short-lived tornado that spun up quickly
to the northeast of the circulation that spawned the Leesburg, VA
EF0 tornado.

Tornado in MONTGOMERY, MARYLAND
From 07-FEB-20 07:38:00 to 07-FEB-20 07:39:00 (EST-5)
Location: DAWSONVILLE
Tornado F-scale: EF0
Property damage: 70.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

Staff from NOAA's National Weather Service Baltimore/Washington
Weather Forecast Office located in Sterling, VA performed a survey
of storm damage that occurred in west-central Montgomery County
MD near Boyds. This survey, coupled with radar analysis from the
KLWX WSR-88D radar and an FAA Terminal Doppler Weather Radar
(TIAD), concluded that a tornado rated EF0 on the Enhanced Fujita
Scale impacted portions of west-central Montgomery County MD near
Boyds and Dawsonville.
Initial damage was noted on Darnestown Road (Rt 28) between White
Ground Rd and Sugarland Rd where several softwood trees were
topped and fell across utility lines on Darnestown Rd.
After passing over largely rural fields and woodlands the tornado
damaged several structures at a dog training facility in the
14000 block of Schaeffer Road. Here an open facing storage
outbuilding was flattened. Roofing material carried from the
destroyed outbuilding damaged two other office trailer structures.
A 10 foot 2x4 impaled the side of one of the office trailers
while another 2x4 impaled the roof of the second office trailer.
Some tree damage was noted just to the northeast of this facility
but all damage ended shortly thereafter.

Tornado in FREDERICK, MARYLAND
From 07-FEB-20 07:44:00 to 07-FEB-20 07:50:00 (EST-5)
Location: FOUNTAIN MILLS
Tornado F-scale: EF1
Property damage: 340.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

Staff from NOAA's National Weather Service Baltimore/Washington
Weather Forecast Office located in Sterling, VA performed a survey
of storm damage that occurred in eastern Frederick County MD near
Monrovia and New Market. This survey, coupled with radar analysis
from the KLWX WSR-88D radar and an FAA Terminal Doppler Weather
Radar (TIAD), concluded that a tornado rated EF1 on the Enhanced
Fujita Scale impacted portions of eastern Frederick County MD.
Initial damage was to several structures at a farm in the 11000
block of Fingerboard Road, where a machine shed and barn were
flattened. A silo was also heavily damaged. Tree damage was noted
near the intersection of State routes 75 and 80. A large swath of
tree and utility line damage was noted along Lynn Burke Rd near
Old Bartholows Rd just south of I-70.
The tornado crossed I-70 and moved along Jesse Smith Rd where
more tree damage (uprooted and topped) was observed. Further
north along the 12900 block of Jesse Smith Rd, more significant
tree damage occurred with numerous softwood trees topped at two
residences along a concentrated damage path.
The tornado continued northeast over open country before crossing
Old Annapolis Rd near Ravenwood Rd, producing extensive tree
damage at several residences. Finally, the tornado caused tree
damage as it crossed Bottom Rd along Woodville Branch and
continued into a wooded area that was not surveyed due to
impending darkness.

Tornado in CARROLL, MARYLAND
From 07-FEB-20 08:03:00 to 07-FEB-20 08:14:00 (EST-5)
Location: AVONDALE
Tornado F-scale: EF1
Property damage: 574.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

Early on Friday Feb 7th, a tornado touched down and skipped
northeast across central Carroll County MD causing erratic damage.
While there was scattered tree damage across southwestern Carroll
County, the first noted damage consistent with a tornado was in the
Avondale Ridge community just west of Route 31 and southwest of
Westminster. Clusters of snapped and uprooted trees were noted. From
there the tornado caused intermittent damage as it traveled
northeast through downtown Westminster, roughly paralleling Ridge
Road and Union Street. Trees were uprooted and snapped, some onto
cars, roads, and homes. Additionally, roofing was blown off, and
shingle and siding damage was noted from the wind. The tornado
continued up Hahn Rd and into the community along Sunshine Way,
where more snapped and uprooted trees were noted, as well as
residential fencing damage. A large recreational vehicle was blown
over. On adjacent property, the National Guard Recruiting Office had
tree damage.  Additionally, a small military trailer was blown over.
The last known damage from this segment of the tornado was along
Lucabaugh Mill Rd, about 250 yards west of Route 27/Manchester Rd.
Most of the trees along this area were heavily damaged or downed. In
addition to ground surveying, there was an eyewitness report, as
well as a video of a small tornado posted to social media, both in
the Westminster area. Peak estimated winds were 90 MPH based on the
most heavily damaged areas.
The tornado lifted northeast of Westminster, and no damage was noted
for about 4 miles until it neared Manchester MD. Substantial tree
damage, with numerous large trees uprooted and snapped were noted
along Fort Schoolhouse Rd, from Albert Rill Road, to the northeast
about 400 yards. A home had a section crushed by a large falling
tree. As the tornado traveled northeast along Park Avenue, tree
damage became more scattered, and no tornadic damage was noted
northeast of MD Route 30 in Manchester.

Thunderstorm Wind in MONTGOMERY, MARYLAND
From 07-FEB-20 07:44:00 to 07-FEB-20 07:44:00 (EST-5)
Location: MIDDLEBROOK
Magnitude: 70.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Tree fell into a house. Multiple trees and a couple light poles blown down and shed blown apart in parking lot of Montgomery College - Germantown Campus.

Thunderstorm Wind in FREDERICK, MARYLAND
From 07-FEB-20 07:55:00 to 07-FEB-20 07:55:00 (EST-5)
Location: SAMS CREEK
Magnitude: 65.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Public

Multiple uprooted trees on property near the 15200 block of Oak Orchard Road.

Thunderstorm Wind in MONTGOMERY, MARYLAND
From 07-FEB-20 07:41:00 to 07-FEB-20 07:41:00 (EST-5)
Location: HYATTSTOWN
Magnitude: 56.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Downed tree and branches on MD-109 between I-270 and MD-355. Tree down on a vehicle. Several other trees down in the area.

Thunderstorm Wind in FREDERICK, MARYLAND
From 07-FEB-20 07:53:00 to 07-FEB-20 07:53:00 (EST-5)
Location: UNIONVILLE
Magnitude: 61.00 EG
Property damage: 3.00K
Crop damage: 0.00K
Reported by: Public

Multiple trees and branches down at residence in 14900 block of Chelsea Circle.

Thunderstorm Wind in HOWARD, MARYLAND
From 07-FEB-20 07:58:00 to 07-FEB-20 07:58:00 (EST-5)
Location: LISBON
Magnitude: 52.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: 911 Call Center

Tree down in 700 block of Lisbon Center Drive.

Thunderstorm Wind in HOWARD, MARYLAND
From 07-FEB-20 08:08:00 to 07-FEB-20 08:08:00 (EST-5)
Location: HIGHLAND
Magnitude: 52.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: 911 Call Center

Tree down in 6800 block of Haviland Mill Road.

Thunderstorm Wind in HOWARD, MARYLAND
From 07-FEB-20 08:10:00 to 07-FEB-20 08:10:00 (EST-5)
Location: MAYFIELD
Magnitude: 52.00 EG
Property damage: 2.00K
Crop damage: 0.00K
Reported by: 911 Call Center

Tree down near intersection of Marriottsville Road and Baltimore National Pike. Tree down near intersection of Driver Road and Marriottsville Road.

Thunderstorm Wind in HOWARD, MARYLAND
From 07-FEB-20 08:15:00 to 07-FEB-20 08:15:00 (EST-5)
Location: EAST LIOAK
Magnitude: 52.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: 911 Call Center

Tree down near intersection of Cedar Lane and Lightfoot Path.

Thunderstorm Wind in HOWARD, MARYLAND
From 07-FEB-20 08:18:00 to 07-FEB-20 08:18:00 (EST-5)
Location: BRINKLEIGH MANOR
Magnitude: 52.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: 911 Call Center

Tree down to the south of the I-70 and US-29 ramp.

Thunderstorm Wind in HOWARD, MARYLAND
From 07-FEB-20 08:19:00 to 07-FEB-20 08:19:00 (EST-5)
Location: JONESTOWN
Magnitude: 52.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: 911 Call Center

Tree down near the intersection of Red Branch Road and Old Annapolis Road.

Thunderstorm Wind in HOWARD, MARYLAND
From 07-FEB-20 08:21:00 to 07-FEB-20 08:21:00 (EST-5)
Location: OAKLAND MILLS
Magnitude: 52.00 EG
Property damage: 3.00K
Crop damage: 0.00K
Reported by: 911 Call Center

Tree down in 5800 block of Thunder Hill Road. Tree down near the intersection of Rogers Avenue and Brightwell Drive. Tree down in 8400 block of High Ridge Road.

Thunderstorm Wind in CARROLL, MARYLAND
From 07-FEB-20 08:15:00 to 07-FEB-20 08:15:00 (EST-5)
Location: MILLERS
Magnitude: 58.00 MG
Property damage: 3.00K
Crop damage: 0.00K
Reported by: COOP Observer

Wind gust of 67 mph measured along with multiple trees down in Millers.

Thunderstorm Wind in PRINCE GEORGE'S, MARYLAND
From 07-FEB-20 08:42:00 to 07-FEB-20 08:42:00 (EST-5)
Location: LEELAND
Magnitude: 52.00 EG
Property damage: 0.25K
Crop damage: 0.00K
Reported by: 911 Call Center

Large tree branch down onto power lines near the intersection of Largo Road and Hancock Drive.

Thunderstorm Wind in HOWARD, MARYLAND
From 07-FEB-20 08:33:00 to 07-FEB-20 08:33:00 (EST-5)
Location: GUILFORD
Magnitude: 52.00 EG
Property damage: 3.00K
Crop damage: 0.00K
Reported by: 911 Call Center

Tree down near the intersection of Gilford Road and Oakland Mills Road. Tree down near intersection of Race Road and Church Avenue. Tree down near the intersection of Vollmerhausen Road and Dragonclaw Road.

Thunderstorm Wind in ST. MARY'S, MARYLAND
From 07-FEB-20 08:42:00 to 07-FEB-20 08:42:00 (EST-5)
Location: DYNARD
Magnitude: 56.00 EG
Property damage: 25.00K
Crop damage: 0.00K
Reported by: 911 Call Center

Unoccupied barn destroyed in Clements.

Thunderstorm Wind in ST. MARY'S, MARYLAND
From 07-FEB-20 08:53:00 to 07-FEB-20 08:53:00 (EST-5)
Location: HILLVILLE
Magnitude: 61.00 EG
Property damage: 30.00K
Crop damage: 0.00K
Reported by: 911 Call Center

Nearly 30 reports of trees and wires down across northern St. Mary's County. Large tree splintered down the middle in California.

Thunderstorm Wind in ST. MARY'S, MARYLAND
From 07-FEB-20 09:00:00 to 07-FEB-20 09:00:00 (EST-5)
Location: SOTTERLEY
Magnitude: 56.00 MG
Reported by: Mesonet

Wind gust to 65 mph measured by a mesonet near Sotterley.

Thunderstorm Wind in CALVERT, MARYLAND
From 07-FEB-20 09:02:00 to 07-FEB-20 09:02:00 (EST-5)
Location: APPEAL
Magnitude: 61.00 EG
Property damage: 300.00K
Crop damage: 0.00K
Reported by: 911 Call Center

A dozen reports of trees down around Solomons and Lusby. About half involved trees falling onto homes. A marina structure collapsed impacting 20 boats.

Thunderstorm Wind in ANNE ARUNDEL, MARYLAND
From 07-FEB-20 08:55:00 to 07-FEB-20 08:55:00 (EST-5)
Location: MC KENDREE
Magnitude: 52.00 EG
Property damage: 2.00K
Crop damage: 0.00K
Reported by: 911 Call Center

Tree down blocking the road near the intersection of Fishers Station Road and West Bayfront Road. Tree down onto MD-4 southbound lane near Lower Pindell Road.

Thunderstorm Wind in ANNE ARUNDEL, MARYLAND
From 07-FEB-20 09:02:00 to 07-FEB-20 09:02:00 (EST-5)
Location: LAKE SHR
Magnitude: 52.00 EG
Property damage: 2.00K
Crop damage: 0.00K
Reported by: 911 Call Center

Tree down near the intersection of Eaglehill Road and North Shore Road. Tree down near the intersection of Shore Acres Road and Stonington Drive.

Thunderstorm Wind in ST. MARY'S, MARYLAND
From 07-FEB-20 09:17:00 to 07-FEB-20 09:17:00 (EST-5)
Location: (NHK)NAS PATUXENT RI
Magnitude: 58.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: ASOS

Wind gust of 67 mph measured at Patuxent River Naval Air Station. Multiple trees down on the base.