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In the Southwest-Pacific, East of Darwin, tropical cyclones are on average ___ per year.

Refer to figure.

TROPICAL REVOLVING STORMS (TRS). Are thermal depressions that develop over warm tropical oceans (wind speeds in excess of 33 kts). When they sustain wind speeds greater than 63 kt, they are designated tropical cyclones.

TRS are given dierent names in dierent parts of the world:
In Australia, TRS are denominated Cyclones (also referred to as "Willy-Willy"), and are approx. 9 per year.

  • East of Darwin: an average of 9 tropical cyclones per cyclone season.
  • West of Darwin: an average of 5 tropical cyclones per cyclone season.

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