A dynamic low pressure system tracked through the Mid-Atlantic states on the evening of November 2nd. A squall line developed along the cold front, and while instability was limited, deep and low level shear were strong enough to support the development of a quasi-linear convective system. The most intense portions of the system were able to generate localized severe damaging winds and tornadoes.

Thunderstorm Wind in HOWARD, MARYLAND
From 02-NOV-18 19:54:00 to 02-NOV-18 19:54:00 (EST-5)
Location: HIGHLAND
Magnitude: 50.00 EG
Reported by: Emergency Manager

Multiple power lines were downed near the intersection of Ten Oaks Road and Linden Church Road. A tree was also blown down in the 7000 block of Mink Hollow Road.

Thunderstorm Wind in CHARLES, MARYLAND
From 02-NOV-18 21:06:00 to 02-NOV-18 21:06:00 (EST-5)
Location: NEWBURG CLIFFTON ARP
Magnitude: 50.00 EG
Reported by: 911 Call Center

A tractor trailer truck partially overturned on the US-301 Harry Nice Bridge.

Thunderstorm Wind in CHARLES, MARYLAND
From 02-NOV-18 21:20:00 to 02-NOV-18 21:20:00 (EST-5)
Location: POPES CREEK
Magnitude: 50.00 EG
Reported by: NWS Storm Survey

Multiple trees were blown down in the 12200 block of Popes Creek Road near Edge Hill Road.

Thunderstorm Wind in HARFORD, MARYLAND
From 02-NOV-18 20:48:00 to 02-NOV-18 20:48:00 (EST-5)
Location: SCARFF
Magnitude: 50.00 EG
Reported by: State Official

Trees were blown down on Pleasantville Road.

Thunderstorm Wind in HARFORD, MARYLAND
From 02-NOV-18 21:03:00 to 02-NOV-18 21:03:00 (EST-5)
Location: GIBSON
Magnitude: 50.00 EG
Reported by: State Official

Trees and wires were blown down along Conowingo Road.

Thunderstorm Wind in CARROLL, MARYLAND
From 02-NOV-18 19:42:00 to 02-NOV-18 19:42:00 (EST-5)
Location: SHILOH
Magnitude: 62.00 MG
Reported by: Trained Spotter

A trained spotter reported a measured 71 mph (62 knot) gust.

Thunderstorm Wind in CHARLES, MARYLAND
From 02-NOV-18 21:21:00 to 02-NOV-18 21:21:00 (EST-5)
Location: SPRINGHILL
Magnitude: 50.00 EG
Reported by: State Official

A tree was blown down near the intersection of Preference Drive and US-301 Crain Highway.

Thunderstorm Wind in HOWARD, MARYLAND
From 02-NOV-18 20:04:00 to 02-NOV-18 20:04:00 (EST-5)
Location: MARRIOTSVILLE
Magnitude: 50.00 EG
Reported by: Emergency Manager

A large tree was blown down across the road near the 1200 block of Marriottsville Road.

Tornado in HOWARD, MARYLAND
From 02-NOV-18 19:19:00 to 02-NOV-18 19:20:00 (EST-5)
Location: LONG CORNER
Tornado F-scale: EF1
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

A tornado touched down in extreme northwestern Howard County, Maryland, approximately 1 mile south of Interstate 70/US-40/Baltimore National Pike at 8:19 PM EDT. Several wooden power poles were snapped along Penn Shop Road just east of MD-27/Ridge Road, indicative of winds over 100 MPH. The path continued northeastward into Carroll County.

Tornado in BALTIMORE CITY (C), MARYLAND
From 02-NOV-18 20:42:00 to 02-NOV-18 20:44:00 (EST-5)
Location: PENN MARY JCT
Tornado F-scale: EF1
Reported by: NWS Storm Survey

A tornado touched down in Baltimore City at about 9:42 PM EDT on Friday evening, November 2, 2018. Initial damage was to a tractor trailer which was blown over on Interstate 95 just north of the Fort McHenry Tunnel. A few trees were topped just west of the interstate, and a fence line blew over on South Newkirk Street just to the east. This damage is consistent with winds of about 70 MPH.
The tornado tracked generally eastward roughly parallel to Holabird Avenue. It blew in large garage doors on both side of the building at Flexi-Van Leasing facility, consistent with wind speeds over 90 MPH.
As it continued eastward, it impacted the north building of the Amazon sorting facility, reaching a peak intensity of around 105 MPH. It blew the roof off a portion of the building, including iron rafters. With the loss of the roof, the eight inch concrete wall panels pushed in and collapsed into the building towards the north end of the west wall. Two fatalities occurred inside the building with the wall collapse. About a dozen truck trailers were pushed over, moved, or rolled by the wind. Two of the trailers were noted to have been blown in an opposite direction of the wind that toppled the wall. Several light stanchions and signs were blown over, and several car windows were blown out by flying debris. Radar data from the FAA's Terminal Doppler Weather Radar near Baltimore-Washington International Thurgood Marshall Airport indicated this was around 9:43 PM EDT, and this is when the strongest velocity signature was noted.
The tornado continued east along the south side of Holabird Avenue, uprooting several large trees, and snapping dozens of large branches, consistent with winds of about 80 MPH.
Damage along the entire path was mainly convergent, and while much of the damage was from west-southwest to east-northeast, there were several notable exceptions of damage in differing directions. An eyewitness fire fighter outside the Baltimore City Fire Department Engine 50 firehouse in the area saw the swirling debris and funnel cloud as it passed. The tornado lifted as it reached the intersection with Dundalk Avenue, which according to radar would have been at about 9:44 PM EDT.

Tornado in CARROLL, MARYLAND
From 02-NOV-18 19:20:00 to 02-NOV-18 19:26:00 (EST-5)
Location: MT AIRY
Tornado F-scale: EF2
Property damage: 900.00K
Reported by: NWS Storm Survey

A tornado moved northeastward from Howard County and entered Carroll County around 8:20 PM EDT on the evening of November 2nd. Several trees were downed along Bennett Road. Numerous trees were downed in the Pheasant Ridge community just south of MD-144/Frederick Road, and several mobile homes were heavily damaged. Several power poles were snapped along MD-144/Frederick Road.
As the tornado crossed Interstate 70/US-40/Baltimore National Pike, numerous trees and branches were downed in the roadway and on vehicles, which appeared to have been pulled off the roadway by the winds. No injuries were reported.
The tornado proceeded to move into the retail area of Mt. Airy, where a canopy over the gas pumps at High's Dairy Store was partially torn off, and the TJ Maxx roof was lifted up and partially removed. There were also numerous trees snapped and uprooted in a convergent manner behind the shopping center to near the Mt. Airy water tower. In the immediate path, virtually no trees were left undamaged, indicative of winds over 100 MPH.
The tornado continued northward from this point, where several outbuildings at the Knills Farm Market just east of MD-27/Ridge Road were severely damaged or completely destroyed, including a metal silo which twisted and collapsed. Nearby along Watersville Road, several more power poles were snapped purely from wind (not from trees falling on power lines). On either side of the farm, virtually all trees in the tornado's path were downed in a convergent manner, including at a residence along Watersville Road, with some showing signs of bark being stripped by the wind. This was one area where maximum winds are estimated to have been near 120 mph.
The tornado continued northeastward, with several residences experiencing shingle and roof damage/removal along Arrowwood Circle, and downed numerous trees and power lines, consistent with winds around 90 MPH.
Numerous hardwood trees, virtually all in the tornado's path, were snapped with signs of stripped bark along the 6000 block of Runkles Road. At Snell's Greenhouses, water was completely removed from a pond, and several greenhouses were destroyed. A nearby home weather station in the tornado's path just to the northeast measured a wind gust of 112 mph. Based on this, it is likely the tornado's maximum winds again approached 120 mph in this area. This occurred at around 825 PM EDT, when the FAA's Terminal Doppler Weather Radar near Washington Dulles International Airport showed it's strongest rotational signature.
The last evidence of tornadic damage was observed on Gillis Falls Road where a few trees were uprooted in convergent fashion just east of Runkles Road. Radar imagery from the FAA's Terminal Doppler Weather Radar near Washington Dulles International Airport showed the tornadic velocity couplet dissipate just north of Gillis Ford Road at about 826 PM EDT.
The damage estimate was provided by Carroll County Emergency Management.

Thunderstorm Wind in HOWARD, MARYLAND
From 02-NOV-18 19:18:00 to 02-NOV-18 19:18:00 (EST-5)
Location: LONG CORNER
Magnitude: 61.00 EG
Reported by: Emergency Manager

A sign and gazebo were damaged at Lu and Joe's Restaurant. Multiple trees were also down near the 19000 block of Windsor Forest Road.

Thunderstorm Wind in CHARLES, MARYLAND
From 02-NOV-18 21:25:00 to 02-NOV-18 21:25:00 (EST-5)
Location: ALLENS FRESH
Magnitude: 50.00 EG
Reported by: NWS Storm Survey

Straight line winds caused minor damage to the roof of the overhang of the Citgo Gas Station on US-301 Crain Highway near MD-234 Budds Creek Road. Several trees were also downed along Glasva School Road. A barn was destroyed on Edgewater Drive just north of MD-234 Budds Creek Road.

Tornado in BALTIMORE, MARYLAND
From 02-NOV-18 20:44:00 to 02-NOV-18 20:45:00 (EST-5)
Location: ST HELENA
Tornado F-scale: EF1
Property damage: 15.00K
Reported by: NWS Storm Survey

A tornado tracked eastward from Baltimore City into southern Baltimore County near the city of Dundalk, around 9:44 PM EDT. After it initially lifted, the tornado briefly touched down one last time at the Holabird East Apartments on 4 Georges Court in Dundalk. The two adjoined northeast buildings in the complex sustained significant roofing damage, with a large portion of the roof decking removed from the windward side. The building was deemed uninhabitable displacing 42 people. The strong southwest wind hit the building broadside causing the damage. No other damage was noted in the area. A resident reported swirling winds with the event. One resident in the building was treated for cuts. This was the last area of damage, and the tornado signature on radar weakened after this point just after 9:45 PM EDT. The monetary damage is an estimate provided by the county emergency management office.