Divide this number by five and this tells you how many miles away you are from the storm (or divide by three for the distance in kilometres). To tell how far away a thunderstorm is, simply count the number of seconds between the flash of lightning and the boom of thunder that follows. In the same way as normal lightning, the imbalance between the plume's electrical charge and the charge in the atmosphere leads to lightning strikes. When an eruption occurs, earth and ash are thrown into the air in a giant plume, colliding to create an electrical charge. While lightning storms are impressive in their own right, they don't quite compare to the spectacle when volcanic eruptions trigger lightning strikes. The charge carried down this small channel is so intense that the temperature of the lightning reaches 30,000 ☌ - that's five times hotter than the surface of the Sun. The average length of a lightning bolt is about 2-3 miles. While the intensity of a lightning strike can make them appear as thick bolts across the sky, the actual width of a lightning bolt is only about 2-3 cm. The width of a thumb and hotter than the sun While nitrogen is in the air all around us, for plants to be able to absorb it (a process vital for their growth) they rely on a process called Nitrogen fixation.Īlthough much of this process is done by bacteria and algae, the extreme heat of a lightning strike causes nitrogen to bond with oxygen to create nitrogen oxides which combine with moisture in the air to fall as rain and water plants with nitrate-rich water. This layer becomes instantly heated and expands causing the bark to be blasted off the tree and sometimes splitting the wood. When lightning hits a tree, it usually travels just below the tree's bark where there is a layer of sap and water. Trees can often be destroyed by lightning strikes. Around the world, there are over 3,000,000 flashes every day. Lightning is one of nature's most recurrent and common spectacles. hail or a positively charged part of a cumulonimbus cloud) it can trigger a lightning strike. While flying, the helicopter acquires a negative charge, so if it flies close to an area that is positively charged (e.g. Recent research from the Met Office revealed that helicopters can cause an isolated lightning strike. That's as many as 40,000 lightning strikes in one night! 4. Massive thunderstorms occur on 140-160 nights per year with an average of 28 lightning strikes per minute lasting up to 10 hours at a time. Lake Maracaibo in Venezuela is the place on Earth that receives the most lightning strikes. The most lightning-struck location in the world They are not only prized by collectors, they are also of great scientific value in demonstrating past occurrence of lightning storms. When lightning strikes sand or sandy soil, it fuses together the grains to create a small glass-like tube known as a fulgurite. This means it would take about 55 minutes to travel to the moon, or around 1.5 seconds to get from London to Bristol. While the flashes we see as a result of a lightning strike travel at the speed of light (670,000,000 mph) an actual lightning strike travels at a comparatively gentle 270,000 mph.
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