May 18, 2017 2:14 PM
Thunderstorms expected to move through NH Thursday evening, night
Even by mid-summer standards, Thursday would be considered a very hot day. High temperatures reaching the middle to upper 90s will make it one of the warmest May days on record in Concord.
The heat will not last long. A cold front will move through New Hampshire Friday. The weekend will be much cooler, but pleasant with highs in the 60s at the coast and lower 70s inland.
Out ahead of the front, thunderstorms will erupt in New York Thursday afternoon, moving toward New England. These storms will be strong to severe in Vermont and New York. In addition to heavy rain and lightning, damaging wind gusts and large hail are possible in some storms. The storms may maintain their strength as they approach New Hampshire during the evening.
The timing on these storms would be around or after 8 p.m. in western areas, later farther east.
Any thunderstorms should come to an end by 11 p.m., though a couple of showers or downpours can't be ruled out overnight.
Friday will start off warm and muggy, but turn cooler and breezy as the front moves through the Granite State during the day. Only an isolated shower or thunderstorm is expected during the day Friday.
Track the storms as they develop on Interactive Radar.