We are conditioned to see the winds from the ground, the rotating coordinate system. Suppose you are standing near Podunk Hollow Airport and feel the Southwesterly wind blowing at 15 miles per hour.

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In an hour the wind you felt should be blowing near a camp on the southeastern shore of Lake Podunk, 15 miles away. If you were to view the same situation from outer space, the image would look like this schematic diagram.

That's the concept and the need to apply the Coriolis Force to the winds. There are a number of ways to proceed:

• For those who wish some easy to remember rules to show how the wind is forced.
• Or, try a non-mathematical derivation of the process suitable for high school and lower divisional college students.
• Here is a calculus based derivation of the Coriolis Force suitable for upper divison college level science majors.
• Or, That's all I wanted, on to the summary