A line of thunderstorms developed along a strong cold front near and east of I-95 from northeastern to southern Maryland. An embedded supercell spawned an EF-1 tornado over Cecil County, and there were numerous instances of wind damage as a result of straight-line winds of up to around 70 MPH.

Thunderstorm Wind in HARFORD, MARYLAND
From 01-APR-23 17:20:00 to 01-APR-23 17:20:00 (EST-5)
Location: STREET
Magnitude: 52.00 EG
Property damage: 7.00K
Reported by: Public

Trees blew down onto a vehicle and there was minor structural damage to a roof top in Street.

Hail in BALTIMORE, MARYLAND
From 01-APR-23 17:20:00 to 01-APR-23 17:20:00 (EST-5)
Location: JACKSONVILLE
Magnitude: 1.00 
Reported by: Trained Spotter

Quarter size hail was reported in Jacksonville.

Thunderstorm Wind in CECIL, MARYLAND
From 01-APR-23 17:30:00 to 01-APR-23 17:30:00 (EST-5)
Location: RISING SUN
Magnitude: 52.00 EG
Property damage: 5.00K
Reported by: 911 Call Center

There were several calls for trees blown down in the Rising Sun area.

Thunderstorm Wind in CECIL, MARYLAND
From 01-APR-23 17:32:00 to 01-APR-23 17:32:00 (EST-5)
Location: WOODLAWN
Magnitude: 52.00 EG
Property damage: 6.00K
Reported by: Emergency Manager

There were several calls for trees and power lines blown down around Woodlawn, including on Principio Road, Jackson Park Road, and Liberty Grove Road.

Thunderstorm Wind in CECIL, MARYLAND
From 01-APR-23 17:35:00 to 01-APR-23 17:35:00 (EST-5)
Location: AIKIN
Magnitude: 56.00 EG
Property damage: 12.00K
Reported by: Emergency Manager

There were numerous calls for trees and power lines blown down along roadways north and east of Perryville, including on MD-222 Perryville Road, Jackson Station Road, Saint Marks Church Road, and Tiller Farm Lane.

Hail in CECIL, MARYLAND
From 01-APR-23 17:35:00 to 01-APR-23 17:35:00 (EST-5)
Location: SYLMAR
Magnitude: 1.50 
Reported by: Public

Ping pong ball size hail was reported just northeast of Rising Sun.

Tornado in CECIL, MARYLAND
From 01-APR-23 17:34:00 to 01-APR-23 17:41:00 (EST-5)
Location: CALVERT
Tornado F-scale: EF1
Property damage: 1000.00K
Reported by: NWS Storm Survey

A severe thunderstorm produced an EF1 tornado just east of Rising Sun, MD in Cecil County Saturday evening April 1 2023 between 6:34 PM and 6:41 PM EDT. The severe thunderstorm formed as a result of a multi-cell cluster of thunderstorms that formed ahead of a cold front passage late Saturday afternoon. As the cell moved east of Rising Sun, it began to show signs of rotation.
The tornado touched down in Plumpton Park Zoo, downing a few dozen trees. It then
proceeded to near the village of Calvert, just east of Chandlee Road and its intersection with Telegraph Road/MD-273 where three wooden power poles were snapped. The tornado continued to move east along Telegraph Road and caused uprooted and snapped hardwood and softwood trees near Rosebank United Methodist Church. The tornado then moved to the southeast and resulted in extensive tree and minor  structural damage in the vicinity of Calvert Regional Park, Cecil Arena, and Rising Sun High School. Over 100 trees were damaged in this area with numerous softwood and hardwood trees being uprooted and snapped. The area was littered with small tree debris. Damage to fencing was observed along with shingles being removed, soffit, fascia, and siding damaged, and other minor structural damage to homes and businesses. At the Calvert Regional Park, portable toilets were broken into several smaller parts and moved more than 300 yards into fields to the north of the storm's track. Also, off North East Road, a wooden power pole was snapped along with several trees downed and a sign blown off the Cecil Arena. The tornado moved further east toward Dr. Miller Road where a small barn collapsed and was moved approximately 50 yards into a field as a result. Additional softwood and hardwood trees were uprooted and snapped along Blue Ball Road with two sheds being moved approximately 100
yards into a field. As the tornado moved to the northeast and began to occlude, additional hardwood and softwood trees were uprooted and snapped between Blue Ball Road and Telegraph Road.
The Federal Aviation Administration's Terminal Doppler Weather Radar in Pennsauken Township, NJ depicted a tight velocity couplet that corresponded to the path of the damage described above.
Additional scattered tree damage in northern Cecil County, MD was determined to be caused by straight-line winds.

Hail in CECIL, MARYLAND
From 01-APR-23 17:34:00 to 01-APR-23 17:34:00 (EST-5)
Location: CALVERT
Magnitude: 1.75 
Reported by: Public

Hail up to golf ball size was reported in Plumpton Park Zoo.

Thunderstorm Wind in HARFORD, MARYLAND
From 01-APR-23 17:36:00 to 01-APR-23 17:36:00 (EST-5)
Location: SWAN CREEK
Magnitude: 52.00 EG
Property damage: 10.00K
Reported by: Fire Department/Rescue

Trees blew down between Aberdeen and Havre de Grace, including one onto a house on Locust Street.

Hail in HARFORD, MARYLAND
From 01-APR-23 17:39:00 to 01-APR-23 17:39:00 (EST-5)
Location: HAVRE DE GRACE
Magnitude: 1.50 
Reported by: Public

Ping pong ball size hail was reported in Havre de Grace.

Thunderstorm Wind in CECIL, MARYLAND
From 01-APR-23 17:40:00 to 01-APR-23 17:40:00 (EST-5)
Location: EDER
Magnitude: 56.00 EG
Property damage: 4.00K
Reported by: Emergency Manager

There were several calls for trees blown down onto roadways north of North East, including near the intersections of Stevenson Road and Mechanics Valley Road, and in the 300 block of Red Toad Road.

Thunderstorm Wind in CECIL, MARYLAND
From 01-APR-23 17:43:00 to 01-APR-23 17:43:00 (EST-5)
Location: CHILDS
Magnitude: 52.00 EG
Property damage: 2.00K
Reported by: Trained Spotter

Multiple trees blew down along MD-213 Singerly Road.

Thunderstorm Wind in CECIL, MARYLAND
From 01-APR-23 17:45:00 to 01-APR-23 17:45:00 (EST-5)
Location: BACON HILL
Magnitude: 62.00 MG
Reported by: Mesonet

A wind gust of 62 knots (71 MPH) was measured by a mesonet at the North East Landfill (DE052).

Thunderstorm Wind in CALVERT, MARYLAND
From 01-APR-23 18:43:00 to 01-APR-23 18:43:00 (EST-5)
Location: APPEAL
Magnitude: 56.00 EG
Property damage: 6.00K
Reported by: Trained Spotter

Multiple trees blew down on the south side of Lusby.

Thunderstorm Wind in ST. MARY'S, MARYLAND
From 01-APR-23 18:50:00 to 01-APR-23 18:50:00 (EST-5)
Location: PATUXENT RIVER
Magnitude: 61.00 MG
Reported by: ASOS

A wind gust of 61 knots (70 MPH) was measured by the ASOS at Patuxent River Naval Air Station (KNHK).

Hail in ST. MARY'S, MARYLAND
From 01-APR-23 18:53:00 to 01-APR-23 18:53:00 (EST-5)
Location: CALIFORNIA
Magnitude: 1.00 
Reported by: Trained Spotter

Quarter size hail was reported in California.

Thunderstorm Wind in ST. MARY'S, MARYLAND
From 01-APR-23 19:07:00 to 01-APR-23 19:07:00 (EST-5)
Location: BEACHVILLE
Magnitude: 55.00 MG
Reported by: ASOS

A wind gust of 55 knots (63 MPH) was measured by the ASOS at Webster Field/Saint Inigoes (KNUI).