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A thunderstorm is a storm with lightning and thunder. Its produced by a cumulonimbus cloud, usually producing gusty winds, heavy rain and sometimes hail.
 * What is a thunderstorm?**

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http://www.weatherwizkids.com/weather-thunderstorms.htm **What ** causes lightning? is a thunderstorm? Lightning is an electric current. Within a thundercloud way up in the sky, many small bits of ice (frozen raindrops) bump into each other as they move around in the air. All of those collisions create an electric charge. After a while, the whole cloud fills up A thunderstorm is a storm with electrical charges. The positive charges or protons form at the top of the cloud and the negative charges or electrons form at the bottom of the cloud. Since opposites attract, that causes a positive charge to build up on the ground beneath the cloud. The grounds electrical charge concentrates around anything that sticks up, such as mountains, people, or single trees. The charge coming up from these points eventually connects with a charge reaching down from the clouds and - zap - lightning strikes! lightning and thunder. Its produced by a cumulonimbus cloud, usually producing gusty winds, heavy rain and sometimes hail. [|http://www.weatherwizkids.com/weather-thunderstorms.htm] Facts about thunderstorms Thunderstorms  What is   Have you ever rubbed your feet across carpet and then touched  a   thunderstorm? A thunderstorm is a storm with lightning and thunder. Its produced by a cumulonimbus cloud, usually producing gusty winds, heavy rain and sometimes hail  Cumulonimbus Cloud. You can help protect yourself against the effects of thunderstorms, which can cause flooding and dangerous lightning by having a  disaster survival kit. A preparedness kit helps you to stay safe. The basic ingredients used to make a thunderstorm are moisture, unstable air and lift. You need moisture to form clouds and rain. You need unstable air that is relatively warm and can rise rapidly. Finally, you need lift. This can form from fronts, sea breezes or mountains. verage lightning bolt is 6 miles long It is estimated that there are around 1,800 thunderstorms that occur across our planet every day. . Lightning is a bright flash of electricity produced by a thunderstorm. All thunderstorms produce lightning and are very dangerous.  metal door handle? If you hear the sound of thunder, so, then you are know that you can get shocked! Lightning works in danger from lightning. Lightning kills and injures more people each year than hurricanes or tornadoes; between 75 to 100 people. Lightning is an electric current. Within a thundercloud people   the same way up in the sky, many small bits of ice (frozen raindrops) bump into each other as they move around in the air. All of those collisions create an electric charge. After a while, the whole cloud fills up with electrical charges. The positive charges or protons form at the top of the cloud and the negative charges or electrons form at the bottom of the cloud. Since opposites attract, that causes a positive charge to build up on the ground beneath the cloud. The grounds electrical charge concentrates around anything that sticks up, such as mountains, people, or single trees. The charge coming up from these points eventually connects with a charge reaching down from the clouds and - zap - lightning strikes! y  Every thunderstorm produces lightning, which kills more people each year than tornadoes. **What causes a thunderstorm?** The basic ingredients used to make a thunderstorm are moisture, unstable air and lift. You need moisture to form clouds and rain. You need unstable air that is relatively warm and can rise rapidly. Finally, you need lift. This can form from fronts, sea breezes or mountains. Thunder is caused by lightning. When a lightning bolt travels from the cloud to the ground it actually opens up a little hole in the air, called a channel. Once then light is gone the air collapses back in and creates a sound wave that we hear as thunder. The reason we see lightning before we hear thunder is because light travels faster than sound! Hail is created when small water droplets are caught in the updraft of a thunderstorm. These water droplets are lifted higher and higher into the sky until they freeze into ice. Once they become heavy, they will start to fall. If the smaller hailstones get caught in the updraft again, they will get more water on them and get lifted higher in the sky and get bigger. Once they get lifted again, they freeze and fall. This happens over and over again until the hailstone is too heavy and then falls to the ground.

[] When you feel a rain drop you'd better get inside. When a big cloud appears,a thunderstorm is 10 minutes away.