According to the National Weather Service, lightning strikes somewhere on the surface of the earth 100 million times each day.

Each strike of lightning contains about one billion volts of electricity. That's enough energy to light a 100-watt bulb for three months.

With all that power it's amazing many researchers call lightning the most underrated of all weather hazards.

Lightning is the second leading cause of storm deaths in the United States. In addition, lightning causes millions of dollars in property damage in this country alone.

But the good news is most personal injury and property damage caused by lightning can be prevented.

At the first sign of lightning or thunder, seek shelter. Good shelters are substantial buildings or fully enclosed vehicles like a car, truck or van. Be sure to keep the windows completely shut.

Unsafe places are open spaces like sports fields and golf courses, high ground or under trees. Be sure to stay away from metal objects including small machinery, electric wires or equipment, and metal fences.

If you are outside use the 30-30 rule. When you see lightning, count the time until you hear thunder. If this time in less than 30 seconds, go inside. Then wait 30 minutes or more after hearing the last thunder before going outside.

If you are indoors, avoid water, stay away from windows and doors, do not use the telephone, turn off, unplug, and stay away from appliances, computers, power tools and television sets. Lightning can strike electric and phone lines causing shocks or surges to inside equipment.

Consider installing Surge Protective Devices (SPD) on electrical equipment. These systems can provide significant protection for electronic and electrical appliances. Be sure to keep them installed at all times.

Also consider adding a Lightning Protection System - these systems include lightning rods and air terminals. They provide a direct path for lightning to follow to the ground rather than through the house and its wiring.

However a lightning protection system will not protect a home from fire or electrical damage from lightning entering through the telephone, cable or electrical lines. Whole house surge protection devices are needed for this type of lightning strike.

A Whole House Surge Protection System can be installed by the electric meter or the main electrical panel to help protect the appliances and electrical equipment in your home.

Contact your local electric company for installation information or a qualified electrician or contractor for installation.

And for more information about protecting your home and family visit flash.org