It is for good reasons that lightening is called the "Underrated Killer"! New Hampshire is ranks 16th in the nation for casualties from lightning strikes. Nationally lightning kills and injures over 400 people a year, some sources believe this number to be twice as large.
Lightning is most common - and most deadly - in the summertime, when people are outdoors and engaged in recreational activity. Any thunderstorm can generate deadly lightning. Anyone who can hear thunder is in danger of being struck. People should seek shelter in a sturdy building if a thunderstorm approaches.