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Thunderstorm Safety - Severe Thunderstorms

Child Safety Basics

By

Updated June 30, 2014

Getting shelter from lightning is an important part of thunderstorm safety.

Getting shelter from lightning is an important part of thunderstorm safety, even before the rain reaches you.

Photo by David McNew/Getty Images

Kids often get afraid when a thunderstorm rolls in.

Thunder and lightning are often on the top of the list of fears for younger children.

Because of the damage that severe thunderstorms and tornadoes can cause, many adults have a healthy fear of them too. After all, about 212 people are killed in thunderstorms each year, mostly from lightning and flash flooding.

Thunderstorms

Although many people simply worry about hail damage during thunderstorms, it is important to realize that other, often more deadly risks from thunderstorms, can come from:

  • driving during blinding rain.

  • lightning, which can strike as far as 10 miles from an area of rainfall.

  • flash flooding, which is most common during slow-moving thunderstorms, and can cause fast moving water to flow down what used to be dry creek beds or slow moving creeks or rivers, catching kids in the fast moving water.

  • strong straight line winds, which can knock over trees and damage some buildings.

  • tornadoes, which can damage or destroy all but the most secure buildings.

To get updates before or during a severe thunderstorm warning or severe thunderstorm watch in your area and other severe weather, in addition to watching the news, consider getting a battery-operated NOAA Weather Radio. Many types are available, from a desktop weather radio that can alert you to severe weather, portable weather radios that can help you monitor the weather when you are on the go, and even hand crank radios with NOAA that you can use when during a power outage and when your batteries are out.

A weather alert radio is especially important since thunderstorms can occur so quickly, and sometimes pop up in the middle of the night when your family is sleeping.

Lightning

Lightning causes thunder, so if you hear thunder, there is lightning nearby.

And since lightning can strike as far as 10 miles from a thunderstorm, it is important to try and figure out how far lightning is far you and your family, instead of simply waiting for it to start raining until you seek shelter.

How do you figure out how far the lightning is? A general rule of thumb is that you can figure out the distance between you and a lightning strike if you count the seconds in between seeing a lightning strike, hearing thunder, and then multiplying the time by 0.2. So if you count 10 seconds in between a lightning strike and a thunder clap, then the lightning is only about 5 miles away and you should seek shelter in a car or building.

In general, you should make sure that you can count to at least 30 in between seeing lightning strikes and hearing thunder, which means that the lightning is at least 15 miles away. And to be safe, stay indoors for at least 30 minutes after hearing thunder for the last time, which should give the thunderstorm plenty of time to move out of your area.

Other tips to keep safe during when lightning is nearby include that you:

  • seek shelter inside a fully enclosed building that has wiring or plumbing, which would usually not include an shed, open garage, or pavilion
  • seek shelter in a hard topped car, truck, or van, etc., if a safe building is not available
  • if you can't get inside a safe building or vehicle, seek shelter in a low-lying area that is not prone to flash flooding, squatting low to the ground, and stay away from tall trees or metal poles.
  • avoid riding on anything metal during a severe thunderstorm with close lightning, such as a bicycle or golf cart.
  • stay off corded phones and avoid taking a bath or shower, as telephone lines and metal pipes can conduct electricity if your home is struck by lightning.
  • seek emergency medical attention to you see someone hit by lightning and start first aid, including CPR if necessary.

Thunderstorm Safety

Other tips to keep safe during a severe thunderstorm, in addition to the advice on avoiding getting hurt from lightning, include that you:

  • don't watch the thunderstorm. Instead, go inside and stay away from windows, open doors, and your porch. If possible, shutter windows or at least close the window blinds or curtains, in case flying debris hits the window.
  • have a safe place to go if a tornado is headed toward your home (tornado warning), such as a tornado shelter, basement, center hallway, bathroom, closet, or other room on the lowest room of your home that is near the center of your home and doesn't have any windows.
  • be prepared to go to your safe room during a tornado watch or severe thunderstorm warning, during which a tornado could strike.
  • have a supply kit ready in your safe room that you will go to in severe weather, including a battery powered weather radio, flashlight, extra batteries, and any medications your kids might need, such as an asthma inhaler.
  • check for downed power lines or other damage after the thunderstorm before your kids go outside.

What You Need To Know

  • If your child uses a power-dependent medical device, such as a ventilator, suction machine, or nebulizer for asthma, notify your electric company so that you could be put on a priority list for repairs in case of a power outage during a thunderstorm. Also, arrange for back-up power, such as from a portable generator.

  • Thunderstorms occur most often during the spring and summer, especially during afternoon and evening.

  • Never use a portable generator inside your home or garage, since that is a big risk for carbon monoxide poisoning.

  • A portable lightning detector can be a great tool for people who are responsible for organizing sporting events, like spring baseball games, and other outdoor activities during the spring and summer when severe thunderstorms are most likely to occur. The StrikeAlert, by Outdoors Technologies, is an inexpensive portable lightning detector that might be a good option for coaches, campers, and anyone else who is responsible for keeping kids outside during severe thunderstorm season.


Source:

NOAA. Lightning Risk Reduction Outdoors. Accessed April 2011.

U.S. Department of Homeland Security | Federal Emergency Management Agency. Thunderstorms and Lightning. Accessed June 2009.
http://www.fema.gov/hazard/thunderstorm/index.shtm

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