A stationary front draped south of New Hampshire moved back north as a warm front allowing for a hot and unstable airmass to move into Southern New Hampshire south of the boundary.  In addition, a moderately strong jet led to a good shear environment that allowed developing daytime thunderstorms to become severe.

Hail in ROCKINGHAM, NEW HAMPSHIRE
From 23-AUG-20 13:15:00 to 23-AUG-20 13:20:00 (EST-5)
Location: WINDHAM
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Quarter size hail associated with a severe thunderstorm was reported by the public in Windham.

Thunderstorm Wind in CHESHIRE, NEW HAMPSHIRE
From 23-AUG-20 13:25:00 to 23-AUG-20 13:30:00 (EST-5)
Location: EAST SWANZEY
Magnitude: 55.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Public

Damaging outflow winds associated with a severe thunderstorm downed numerous trees and wires throughout Swanzey.  Trees and wires reported down on Oliver Hill Rd, Taff road and others.

Thunderstorm Wind in CHESHIRE, NEW HAMPSHIRE
From 23-AUG-20 13:30:00 to 23-AUG-20 13:35:00 (EST-5)
Location: TROY
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Damaging outflow winds associated with a severe thunderstorm downed trees and wires in Troy, blocking Central Square Rd.

Thunderstorm Wind in CHESHIRE, NEW HAMPSHIRE
From 23-AUG-20 13:25:00 to 23-AUG-20 13:30:00 (EST-5)
Location: SOUTH KEENE
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Damaging outflow winds associated with a severe thunderstorm downed trees and wires on Jaffrey Rd. in Marlboro.

Thunderstorm Wind in CHESHIRE, NEW HAMPSHIRE
From 23-AUG-20 13:50:00 to 23-AUG-20 13:55:00 (EST-5)
Location: FITZWILLIAM DEPOT
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Damaging outflow winds from a severe thunderstorm downed trees and wires in Fitzwilliam.

Thunderstorm Wind in ROCKINGHAM, NEW HAMPSHIRE
From 23-AUG-20 14:20:00 to 23-AUG-20 14:25:00 (EST-5)
Location: BRENTWOOD CORNER
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Damaging wind gusts caused by a severe thunderstorm downed trees and wires south of Epping Center.

Thunderstorm Wind in ROCKINGHAM, NEW HAMPSHIRE
From 23-AUG-20 14:30:00 to 23-AUG-20 14:35:00 (EST-5)
Location: STRATHAM
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Damaging wind gusts caused by a severe thunderstorm downed trees and wires in Stratham.

Thunderstorm Wind in HILLSBOROUGH, NEW HAMPSHIRE
From 23-AUG-20 14:20:00 to 23-AUG-20 14:25:00 (EST-5)
Location: HOLLIS DEPOT
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Damaging wind gusts caused by a severe thunderstorm downed multiple trees and wires south on West Hollis St. in Nashua.

Thunderstorm Wind in HILLSBOROUGH, NEW HAMPSHIRE
From 23-AUG-20 14:20:00 to 23-AUG-20 14:25:00 (EST-5)
Location: DAVIS
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Damaging wind gusts caused by a severe thunderstorm blew over a tent where many people gathered for an outdoor event.  At least 6 people where injured with minor injuries being reported by media outlets.

Thunderstorm Wind in SULLIVAN, NEW HAMPSHIRE
From 23-AUG-20 19:55:00 to 23-AUG-20 20:00:00 (EST-5)
Location: NORTH CHARLESTOWN
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Utility Company

Damaging wind gusts caused by a severe thunderstorm downed trees and wires on Oxbrook Rd. in Charlestown.

Thunderstorm Wind in MERRIMACK, NEW HAMPSHIRE
From 23-AUG-20 13:50:00 to 23-AUG-20 13:55:00 (EST-5)
Location: RINGS CORNER
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Damaging wind gusts caused by a severe thunderstorm downed trees and wires on Easton Rd and Loudon Rd in Pittsfield.

Thunderstorm Wind in ROCKINGHAM, NEW HAMPSHIRE
From 23-AUG-20 13:55:00 to 23-AUG-20 13:55:00 (EST-5)
Location: SOUTH DEERFIELD
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Damaging outflow winds associated with a severe thunderstorm downed multiple trees in Deerfield.