Scattered severe storms popped off in Northern Illinois Tuesday evening. A Severe Thunderstorm Warning was issued for parts of La Salle and Livingston counties until 7 p.m. The storm system involved wind speeds of 60 mph and penny-sized hail. The possibility of a tornado was also on the table.

Lightning strikes the United States about 25 million times a year. Most of the strikes occur in the summer, killing 20 people each year, according to the NWS. Chance of lightning increases as a thunderstorm approaches and peaks when the storm is overhead. It diminishes as the storm moves away.