Causes And Notorious Power Of Duststorms That Can Blow Almost Everything

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sandstorms become more frequent because the strong heating of the air over the desert causes the lower atmosphere to become unstable.
sandstorms become more frequent because the strong heating of the air over the desert causes the lower atmosphere to become unstable.

Sandstorms also called dust storms are caused by strong winds blowing over loose soil or sand, and picking up so much of that material that visibility is greatly reduced. The widespread abundance of loose sand in deserts makes them the most common locations for sandstorms to form.

  • In desert regions at certain times of the year, sandstorms become more frequent because the strong heating of the air over the desert causes the lower atmosphere to become unstable. This instability mixes strong winds in the middle troposphere downward to the surface, producing stronger winds at the surface and storms are notorious for getting sand into equipment, houses, and just about every nook and cranny of everything. The abrasive characteristics of the sand can be harmful to machinery.

    dust-storms-india
    dust-storms-India
  • Strong winds and loose and can cause a sandstorm to form, where visibility is greatly reduced. This is common in sandy areas such as deserts and is very common in the Sahara Desert. Storms are also likely to happen during periods of drought because moisture tends to keep the sand particles on the ground.
  • Wind speeds as low as 25mph can shake the particles loose, meaning it doesn’t take a hurricane. However, the faster the wind blows, the more devastating the consequences can be.
  • Dust storms also commonly occur with thunderstorms, and before it is about to rain.
    The rain starts falling, but before it manages to get down to the ground it is evaporated and melted by the heat. This causes the air to cool down, meaning there is an area of cold air sitting above the warm air on the ground.
  • The cold air comes down in a downburst which splashes against the surface which kicks the dust upwards. Strong winds and loose and can cause a sandstorm to form, where visibility is greatly reduced.
  • summer-dust-storm-in-dehi
    summer-dust-storm-in-delhi

    This is common in sandy areas such as deserts and is very common in the Sahara Desert.
    Storms are also likely to happen during periods of drought because moisture tends to keep the sand particles on the ground. Wind speeds as low as 25mph can shake the particles loose, meaning it doesn’t take a hurricane. However, the faster the wind blows, the more devastating the consequences can be.

Interesting Facts

  • HE DUST BOWLThere was a prolonged drought in the Great Plains of the United States in the 1930’s. This led to vast areas of exposed dirt, which helped feed dust storms. This event is believed to have been caused by an unusual sea surface temperature pattern in the eastern Pacific Ocean, made worse by poor land use practices by farmers ploughing up relatively dry grassland to plant wheat. The Dust Bowl, which made life even more miserable for many during the Great Depression, was highlighted in John Steinbeck’s novel “The Grapes of Wrath”.
  • “Haboob” is the Arabic term for a particularly intense type of dust storm caused by the downdraft from a thunderstorm.

    weather adversely effects
    weather adversely effects
  • In the last 10 years, more than 100 dust storms were reported in the state of Arizona, according to the National Oceanic and Atmospheric Administration (NOAA).
  • According to LiveScience.com, in 2009, years of drought preceded a terrible dust storm in Australia, which started in the centre of the country and blew eastward through most of the major cities along the eastern coast. It eventually grew to stretch 2,700 miles across, according to the NASA Earth Observatory, carrying dust as far as New Zealand.

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