Weather

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Across
  1. 4. A phenomenon that occur when one area on the ground heats up more than surrounding areas. This hotter area then heats the air above it, creating a column of circulating air, which picks up dust and other debris from the ground.
  2. 5. A fascinating event that occurs when the air temperature cools and condenses water molecules |ˈmɑːlɪkjuːl| from a gas to a liquid. “As thick as pea soup”.
  3. 8. Capable of voltage upwards of 1 Billion volts, it is spectacularly brilliant and dangerous at the same time. A thunderstorm`s static discharge, a number of steps must occur prior to an actual strike.
  4. 9. It is a necessary requisite for the survival of most life on Earth. In large quantities it can quickly become a disaster.
  5. 10. An important piece to most other weather phenomena. Rain, snow lightning hail and thunderstorms all originate from it.
  6. 11. Is a beautiful and majestic phenomenon that usually one of the first signals that winter is on its way. It requires three things in order to form – higher levels of water vaporing the air, low wind speeds, and low temperatures overnight.
  7. 12. It is as much atmospheric optical phenomena as it is a weather event, and can only occur under certain conditions. A number of amazing physical process occur in order for us to be able to see one.
Down
  1. 1. With wind speeds exceeding 150 miles per hour and diameters over 350 miles, it is the most devastating weather phenomena.
  2. 2. Forming at high altitudes in massive Cumulonimbus clouds, it can grow as big as 8 inches or more and fall ay velocities over 100 miles per hour. It has the potential to cause damage to vehicles and more.
  3. 3. This phenomenon requires several conditions to develop, including a wind speed that increases with altitude and then a supercell. Once formed, the wind speeds have the potential to exceed 200 miles per hour.
  4. 6. When an unstable atmosphere gives way to Cumulonimbus clouds, and large electrical imbalances begin to form this phenomenon is here. With potential for hail, high winds and tornadoes it is one of nature`s most dynamic events.
  5. 7. The object of substantial number of poems and Christmas carols, it can be calming, peaceful, damaging or dangerous depending on circumstances.