While large scale forcing was weak across the region on June 17th, a zone of differential heating and a weak lee trough near the Blue Ridge, when combined with local terrain and sea-breeze circulations, were enough to generate scattered thunderstorms across the region during the afternoon and evening hours. Marginal instability and sufficient wind shear promoted the growth of some of these thunderstorms to severe levels.

Thunderstorm Wind in ANNE ARUNDEL, MARYLAND
From 17-JUN-19 18:27:00 to 17-JUN-19 18:27:00 (EST-5)
Location: FAIR HAVEN
Magnitude: 50.00 EG
Reported by: State Official

A tree was blown down on Solomons Island Road near Jewell Road. A tree was also blown down on Solomons Island Road near Friendship Road.

Hail in MONTGOMERY, MARYLAND
From 17-JUN-19 15:18:00 to 17-JUN-19 15:18:00 (EST-5)
Location: ROCK CREEK FOREST
Magnitude: 0.88 
Reported by: Public

Hail up to the size of nickels (0.88 in diameter) was reported.

Hail in HOWARD, MARYLAND
From 17-JUN-19 15:33:00 to 17-JUN-19 15:33:00 (EST-5)
Location: EAST LIOAK
Magnitude: 1.00 
Reported by: Trained Spotter

Hail up to the size of quarters (1.0 in diameter) was reported.

Hail in ST. MARY'S, MARYLAND
From 17-JUN-19 15:42:00 to 17-JUN-19 15:42:00 (EST-5)
Location: LEONARDTOWN
Magnitude: 0.88 
Reported by: Trained Spotter

Hail up to the size of nickels (0.88 in diameter) was reported.

Hail in ST. MARY'S, MARYLAND
From 17-JUN-19 15:48:00 to 17-JUN-19 15:48:00 (EST-5)
Location: BEAUVUE
Magnitude: 1.75 
Reported by: Broadcast Media

Hail up to the size of golf balls (1.75 in diameter) was reported.

Hail in ST. MARY'S, MARYLAND
From 17-JUN-19 15:50:00 to 17-JUN-19 15:50:00 (EST-5)
Location: LEONARDTOWN
Magnitude: 0.75 
Reported by: Emergency Manager

Hail up to the size of dimes (0.75 in diameter) was reported.

Hail in ST. MARY'S, MARYLAND
From 17-JUN-19 15:55:00 to 17-JUN-19 15:55:00 (EST-5)
Location: CHINGVILLE
Magnitude: 1.75 
Reported by: Trained Spotter

Hail up to the size of golf balls (1.75 in diameter) was reported.

Hail in ST. MARY'S, MARYLAND
From 17-JUN-19 16:00:00 to 17-JUN-19 16:00:00 (EST-5)
Location: LEXINGTON PARK
Magnitude: 0.88 
Reported by: Trained Spotter

Hail up to the size of nickels (0.88 in diameter) was reported.

Hail in ST. MARY'S, MARYLAND
From 17-JUN-19 16:10:00 to 17-JUN-19 16:10:00 (EST-5)
Location: GREAT MILLS
Magnitude: 0.88 
Reported by: Trained Spotter

Hail up to the size of nickels (0.88 in diameter) was reported.

Hail in ST. MARY'S, MARYLAND
From 17-JUN-19 15:40:00 to 17-JUN-19 15:40:00 (EST-5)
Location: LEONARDTOWN
Magnitude: 1.75 
Reported by: Trained Spotter

Hail up to the size of golf balls (1.75 in diameter) was reported.

Hail in PRINCE GEORGE'S, MARYLAND
From 17-JUN-19 16:50:00 to 17-JUN-19 16:50:00 (EST-5)
Location: ACCOKEEK
Magnitude: 1.75 
Reported by: Public

Hail up to the size of golf balls (1.75 in diameter) was reported.

Thunderstorm Wind in ST. MARY'S, MARYLAND
From 17-JUN-19 15:41:00 to 17-JUN-19 15:41:00 (EST-5)
Location: LEONARDTOWN
Magnitude: 50.00 EG
Reported by: State Official

A tree was down in the 22000 block of Camp Calvert Road.

Thunderstorm Wind in ST. MARY'S, MARYLAND
From 17-JUN-19 15:55:00 to 17-JUN-19 15:55:00 (EST-5)
Location: CHINGVILLE
Magnitude: 61.00 EG
Reported by: State Official

Multiple trees were blown down in the 22000 block of Point Lookout Road. Trees and power lines were also blown down in several locations along MD-5.

Thunderstorm Wind in ANNE ARUNDEL, MARYLAND
From 17-JUN-19 15:54:00 to 17-JUN-19 15:54:00 (EST-5)
Location: DELMONT
Magnitude: 50.00 EG
Reported by: State Official

A tree was blown down near the intersection of Stevenson Road and McNelin Way.

Thunderstorm Wind in PRINCE GEORGE'S, MARYLAND
From 17-JUN-19 15:55:00 to 17-JUN-19 15:55:00 (EST-5)
Location: LEELAND
Magnitude: 61.00 EG
Reported by: Trained Spotter

Multiple trees were blown down in Kettering along MD-193.

Thunderstorm Wind in ANNE ARUNDEL, MARYLAND
From 17-JUN-19 16:03:00 to 17-JUN-19 16:03:00 (EST-5)
Location: GREEN HAVEN
Magnitude: 50.00 EG
Reported by: State Official

A tree was blown down on Catherine Avenue near Schramms Crossing.

Thunderstorm Wind in PRINCE GEORGE'S, MARYLAND
From 17-JUN-19 16:50:00 to 17-JUN-19 16:50:00 (EST-5)
Location: ACCOKEEK
Magnitude: 61.00 EG
Reported by: Public

Several trees and telephone poles and wires were blown down.