A cold front moved through the Great Lakes region on June 21, while Tropical Storm Claudette passed offshore of New Jersey and the Delmarva region. Ahead of the cold front, a hot, humid, and unstable air mass developed in the mid-Atlantic. A pre-frontal trough then served as a focus for widespread convection across the Northeast and mid-Atlantic during the afternoon and evening hours. With the strong instability and good forcing, much of the convection became strong to severe, taking the form of both linear and semi-discrete activity. Damaging winds were by far the primary hazard with these storms, with numerous reports of downed trees and power lines across the region. Convection weakened as it approached the coast owing to loss of daytime heating, weakening shear, and large scale subsidence on the northwest flank of Claudette.

Thunderstorm Wind in NEW CASTLE, DELAWARE
From 21-JUN-21 18:20:00 to 21-JUN-21 18:20:00 (EST-5)
Location: MIDDLETOWN
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Some large tree limbs were blown down in the Middletown area. Time estimated from radar.

Thunderstorm Wind in KENT, DELAWARE
From 21-JUN-21 18:45:00 to 21-JUN-21 18:45:00 (EST-5)
Location: BLACKISTON
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Utility Company

A tree was downed onto wires near Longridge Rd. Time estimated from radar.

Thunderstorm Wind in NEW CASTLE, DELAWARE
From 21-JUN-21 18:29:00 to 21-JUN-21 18:29:00 (EST-5)
Location: ST GEORGES
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Utility Company

Power lines were downed near Port Penn Rd. Time estimated from radar.

Thunderstorm Wind in NEW CASTLE, DELAWARE
From 21-JUN-21 18:13:00 to 21-JUN-21 18:13:00 (EST-5)
Location: NEW CASTLE
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: State Official

Wires were downed near Second St. Time estimated from radar.

Thunderstorm Wind in NEW CASTLE, DELAWARE
From 21-JUN-21 18:15:00 to 21-JUN-21 18:15:00 (EST-5)
Location: BEAR
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Utility Company

Several reports of downed tree limbs and power lines in the area. Time estimated from radar.

Thunderstorm Wind in NEW CASTLE, DELAWARE
From 21-JUN-21 18:00:00 to 21-JUN-21 18:00:00 (EST-5)
Location: MERMAID
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: State Official

Trees and wires were downed near New Granville Rd and Ochletree Ln. Time estimated from radar.

Thunderstorm Wind in NEW CASTLE, DELAWARE
From 21-JUN-21 18:17:00 to 21-JUN-21 18:17:00 (EST-5)
Location: NEWARK
Magnitude: 50.00 EG
Crop damage: 0.00K
Reported by: Newspaper

A tree was downed on a house on Squirrel Ln in Newark. A family of 5 were inside at the time. One woman, a grandmother, had to be rescued by firefighters but did not suffer serious injury. The other occupants escaped on their own. Time estimated from radar.

Thunderstorm Wind in NEW CASTLE, DELAWARE
From 21-JUN-21 18:00:00 to 21-JUN-21 18:00:00 (EST-5)
Location: ASHLAND
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Utility Company

Several reports of downed tree limbs and power lines in the area. Time estimated from radar.