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Which of the following statements about the West African Tornado (WAT) is correct?
  • A
    The WAT is another name for TRSs off the West African coast.
  • B
    The WAT is the East-West line of thunderstorms in the ITCZ.
  • C
    The WAT is similar to the North American Tornado.
  • D
    The WAT is a line squall caused by atmospheric waves.

Refer to figure.
The West African Tornado (WAT) is an example of an Easterly Wave. Easterly waves are disturbances in the area close to the ITCZ which take the form of a line of thunderstorms (squall lines) orientated North - South moving from East to West. They occur between March and November - being most common from March to May and October to November.

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