A late season severe weather outbreak occurred across New Hampshire as a cold front swept across the state during the afternoon peak heating.  A very moist and unstable airmass was in place across the region with highs reaching 80 degrees and dewpoints into the 60s.  This allowed for sufficient CAPE values to support damaging winds gusts and large hail as the cold front moved across the state.

Thunderstorm Wind in COOS, NEW HAMPSHIRE
From 15-SEP-21 13:43:00 to 15-SEP-21 13:48:00 (EST-5)
Location: LANCASTER
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Damaging outflow wind gusts from a severe thunderstorm downed numerous trees across the town of Lancaster.

Thunderstorm Wind in GRAFTON, NEW HAMPSHIRE
From 15-SEP-21 13:41:00 to 15-SEP-21 13:46:00 (EST-5)
Location: LITTLETON
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Damaging outflow wind gusts from a severe thunderstorm downed numerous trees across the town of Littleton.

Thunderstorm Wind in COOS, NEW HAMPSHIRE
From 15-SEP-21 14:15:00 to 15-SEP-21 14:20:00 (EST-5)
Location: BERLIN
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Damaging outflow wind gusts from a severe thunderstorm downed numerous trees across the town of Berlin.

Hail in CARROLL, NEW HAMPSHIRE
From 15-SEP-21 15:18:00 to 15-SEP-21 15:22:00 (EST-5)
Location: WHITEFACE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A severe thunderstorm dropped 1 inch hail in the town of North Sandwich.

Thunderstorm Wind in HILLSBOROUGH, NEW HAMPSHIRE
From 15-SEP-21 16:22:00 to 15-SEP-21 16:25:00 (EST-5)
Location: NOONE
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Damaging outflow wind gusts from a severe thunderstorm downed trees south of Peterborough along U.S. Hwy 202.

Hail in CHESHIRE, NEW HAMPSHIRE
From 15-SEP-21 16:09:00 to 15-SEP-21 16:12:00 (EST-5)
Location: DUBLIN
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A severe thunderstorm dropped quarter size hail in Dublin, NH.

Hail in CARROLL, NEW HAMPSHIRE
From 15-SEP-21 16:25:00 to 15-SEP-21 16:28:00 (EST-5)
Location: BROOKFIELD
Magnitude: 1.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A severe thunderstorm dropped half dollar size hail in the town of Wakefield.

Thunderstorm Wind in CHESHIRE, NEW HAMPSHIRE
From 15-SEP-21 16:12:00 to 15-SEP-21 16:15:00 (EST-5)
Location: DUBLIN
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Damaging outflow wind gusts from a severe thunderstorm downed trees on McVeagh Rd. in Dublin.

Thunderstorm Wind in HILLSBOROUGH, NEW HAMPSHIRE
From 15-SEP-21 16:40:00 to 15-SEP-21 16:45:00 (EST-5)
Location: SHARON
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Damaging outflow wind gusts from a severe thunderstorm downed trees in the town of Sharon, with one blocking State Rt. 123.

Thunderstorm Wind in CHESHIRE, NEW HAMPSHIRE
From 15-SEP-21 15:10:00 to 15-SEP-21 15:15:00 (EST-5)
Location: WALPOLE
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Damaging outflow wind gusts from a severe thunderstorm downed numerous trees north of Walpole.  Penny size hail was also reported with this storm.

Hail in CARROLL, NEW HAMPSHIRE
From 15-SEP-21 16:12:00 to 15-SEP-21 16:17:00 (EST-5)
Location: SOUTH WOLFEBORO
Magnitude: 1.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A severe thunderstorm dropped half dollar size south of Wolfeboro shredding leaves through the area.

Thunderstorm Wind in GRAFTON, NEW HAMPSHIRE
From 15-SEP-21 14:20:00 to 15-SEP-21 14:25:00 (EST-5)
Location: WOODSTOCK
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Damaging outflow wind gusts from a severe thunderstorm downed trees near the KOA campground of Highway 175 south of Woodstock.

Hail in COOS, NEW HAMPSHIRE
From 15-SEP-21 13:40:00 to 15-SEP-21 13:45:00 (EST-5)
Location: ERROL
Magnitude: 1.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A severe thunderstorm dropped half dollar size hail along Route 26 near the Maine/NH border.

Thunderstorm Wind in SULLIVAN, NEW HAMPSHIRE
From 15-SEP-21 15:08:00 to 15-SEP-21 15:13:00 (EST-5)
Location: UNITY
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Damaging outflow wind gusts from a severe thunderstorm downed many trees across the town of Unity.

Hail in MERRIMACK, NEW HAMPSHIRE
From 15-SEP-21 15:30:00 to 15-SEP-21 15:35:00 (EST-5)
Location: BRADFORD CENTER
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A severe thunderstorm dropped quarter size hail near Bradford Center, NH.

Thunderstorm Wind in CHESHIRE, NEW HAMPSHIRE
From 15-SEP-21 15:15:00 to 15-SEP-21 15:20:00 (EST-5)
Location: SULLIVAN
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Damaging outflow wind gusts from a severe thunderstorm downed trees and wires on NH State Route 10.

Thunderstorm Wind in GRAFTON, NEW HAMPSHIRE
From 15-SEP-21 14:45:00 to 15-SEP-21 14:50:00 (EST-5)
Location: CAMPTON UPPER VLG
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Damaging outflow wind gusts from a severe thunderstorm downed a tree and power line on Upper Mad River Rd. in Campton.

Thunderstorm Wind in SULLIVAN, NEW HAMPSHIRE
From 15-SEP-21 15:10:00 to 15-SEP-21 15:15:00 (EST-5)
Location: CLAREMONT
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Damaging outflow wind gusts from a severe thunderstorm downed trees across the town of Claremont.

Hail in SULLIVAN, NEW HAMPSHIRE
From 15-SEP-21 15:20:00 to 15-SEP-21 15:25:00 (EST-5)
Location: WASHINGTON
Magnitude: 1.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A severe thunderstorm dropped half dollar size hail in Washington, NH.