A highly anomalous weather system affected much of the eastern United States on April 13. From the night of April 12 through the day on April 13, strengthening low pressure tracked in an almost due northerly direction from the Ohio Valley, through the Great Lakes, and into Canada. A record strong low level jet developed ahead of it along the East Coast. In the mid-Atlantic, a warm front moved through the region during the morning of the 13th, bringing showery weather. During and after the warm frontal passage, mixing with the low level jet brought destructive wind gusts to the surface, especially near the coast where gusts were enhanced by a well-defined gravity wave.
During the afternoon hours, a strong cold front approached, providing strong forcing to an environment of strong to extreme wind shear. Instability was limited due to a lack of clearing following the morning warm frontal passage. However, enough heating occurred by mid-afternoon that a line of strong to severe thunderstorms did manage to develop, producing a number of damaging wind reports as it moved towards the coast.

Thunderstorm Wind in KENT, DELAWARE
From 13-APR-20 14:50:00 to 13-APR-20 14:50:00 (EST-5)
Location: KITTS HUMMOCK
Magnitude: 60.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A tree was downed onto a mobile home. Other damage reports were received from the area. Damage in this area was studied for a possible weak tornado produced by the parent circulation which produced a weak tornado in Caroline County, Maryland. It was determined damage was most likely consistent with straight line winds.

Thunderstorm Wind in KENT, DELAWARE
From 13-APR-20 14:30:00 to 13-APR-20 14:30:00 (EST-5)
Location: PETERSBURG
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Utility Company

Trees and wires were downed in the area. Time based on report from the utility company.

Thunderstorm Wind in KENT, DELAWARE
From 13-APR-20 14:45:00 to 13-APR-20 14:45:00 (EST-5)
Location: CANTERBURY
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Utility Company

Trees and wires were downed in the area. Time based on report from the utility company.

Thunderstorm Wind in KENT, DELAWARE
From 13-APR-20 14:50:00 to 13-APR-20 14:50:00 (EST-5)
Location: KITTS HUMMOCK
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

A tree was downed on US-1 just south of Dover AFB. Time estimated from radar and nearby reports.

Thunderstorm Wind in SUSSEX, DELAWARE
From 13-APR-20 14:55:00 to 13-APR-20 14:55:00 (EST-5)
Location: CHESTNUT KNOLL
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Several reports of downed trees and power lines near Milford. Time estimated from radar.

Thunderstorm Wind in KENT, DELAWARE
From 13-APR-20 14:49:00 to 13-APR-20 14:49:00 (EST-5)
Location: (DOV)DOVER AFB
Magnitude: 56.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Thunderstorm Wind in KENT, DELAWARE
From 13-APR-20 14:50:00 to 13-APR-20 14:50:00 (EST-5)
Location: BROOKDALE HGTS
Magnitude: 69.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Delaware Department of Transportation gauge.

Thunderstorm Wind in KENT, DELAWARE
From 13-APR-20 14:55:00 to 13-APR-20 14:55:00 (EST-5)
Location: KITTS HUMMOCK
Magnitude: 59.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet