A shortwave and associated cold front were approaching from the northwest during the late afternoon and evening hours of July 17th. Very high precipitable water values and very warm temperatures ahead of the front combined with increasing shear to produce numerous severe thunderstorms, mainly during the evening hours. Due to high freezing levels, wind damage and very heavy rain were the main features of these storms as they moved through the region.

Thunderstorm Wind in GRAFTON, NEW HAMPSHIRE
From 17-JUL-13 18:50:00 to 17-JUL-13 18:55:00 (EST-5)
Location: MONROE
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

A severe thunderstorm downed numerous trees throughout Lyman.

Thunderstorm Wind in CARROLL, NEW HAMPSHIRE
From 17-JUL-13 19:50:00 to 17-JUL-13 19:54:00 (EST-5)
Location: NORTH CONWAY
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

A severe thunderstorm downed trees and wires on Bennett Road in North Conway.

Thunderstorm Wind in GRAFTON, NEW HAMPSHIRE
From 17-JUL-13 20:30:00 to 17-JUL-13 20:36:00 (EST-5)
Location: RUMNEY
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

A severe thunderstorm downed a tree on wires on Route 25 near School Street in Rumney.

Thunderstorm Wind in CARROLL, NEW HAMPSHIRE
From 17-JUL-13 20:20:00 to 17-JUL-13 20:25:00 (EST-5)
Location: EFFINGHAM
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

A severe thunderstorm downed trees in Effingham.

Thunderstorm Wind in CARROLL, NEW HAMPSHIRE
From 17-JUL-13 20:35:00 to 17-JUL-13 20:41:00 (EST-5)
Location: WAKEFIELD
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

A severe thunderstorm downed numerous trees in Wakefield.

Thunderstorm Wind in GRAFTON, NEW HAMPSHIRE
From 17-JUL-13 19:05:00 to 17-JUL-13 19:11:00 (EST-5)
Location: BETHLEHEM
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

A severe thunderstorm downed numerous trees throughout Bethlehem.

Thunderstorm Wind in GRAFTON, NEW HAMPSHIRE
From 17-JUL-13 19:02:00 to 17-JUL-13 19:07:00 (EST-5)
Location: FRANCONIA
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

A severe thunderstorm downed numerous trees throughout Franconia.

Thunderstorm Wind in GRAFTON, NEW HAMPSHIRE
From 17-JUL-13 18:52:00 to 17-JUL-13 18:57:00 (EST-5)
Location: LISBON
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

A severe thunderstorm downed numerous trees throughout Lisbon.

Thunderstorm Wind in GRAFTON, NEW HAMPSHIRE
From 17-JUL-13 18:57:00 to 17-JUL-13 19:01:00 (EST-5)
Location: LITTLETON
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

A severe thunderstorm downed multiple trees throughout Littleton.

Thunderstorm Wind in GRAFTON, NEW HAMPSHIRE
From 17-JUL-13 19:00:00 to 17-JUL-13 19:05:00 (EST-5)
Location: SUGAR HILL
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

A severe thunderstorm downed multiple trees throughout Sugar Hill.

Thunderstorm Wind in COOS, NEW HAMPSHIRE
From 17-JUL-13 19:10:00 to 17-JUL-13 19:17:00 (EST-5)
Location: WHITEFIELD
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

A severe thunderstorm downed numerous trees in Whitefield.

Lightning in CARROLL, NEW HAMPSHIRE
From 18-JUL-13 00:01:00 to 18-JUL-13 00:05:00 (EST-5)
Location: MELVIN VLG
Property damage: 20.00K
Crop damage: 0.00K
Reported by: Newspaper

Lightning from an early morning thunderstorm struck a 22-ft sailboat at a marina near Moultenborough and ignited a fire which destroyed the boat.  A second boat (a 28-ft runabout) also caught fire and was destroyed.  Both boats sank into Lake Winnipesaukee.