First day of summer bring isolated storms, cloudy weather

Summer is bringing isolated showers and clouds to Lancaster County today, the first official day of the season. 

First Alert: Tracking heat, humidity and isolated storm chances

Tornado or not? What those scary-looking clouds really are

FIRST ALERT WEATHER: Humidity drops tonight, but we heat up for the weekend

Thunderstorm - Wikipedia

Lightning Safety - Yosemite National Park (U.S. National Park Service)

Thundersnow: How a snowstorm produces lightning

Summer-like weather pattern continues - Home - WCBI TV

Answers to 7 lightning, thunderstorm electricity claims

39 Facts About Storms That Will Make You Run for Cover

Thunderstorm - Wikipedia

SW FL Weather: Some sun this morning before scattered storms

Warm temps, storms arrive for the first day of summer

It's the season for thunderstorms, says SA Weather Service – The Mail & Guardian

Warm temperatures continue; Chance of isolated thunderstorms arrives late Thursday – WBKB 11

Thunderstorm, Definition, Types, Structure, & Facts