which is not part of the recipe for a thunderstorm to form?

The most common type of thunderstorm is the air-mass thunderstorm, which forms from a single column of rising unstable air. Other types of thunderstorms include squall-line thunderstorms, which form along a squall line, and multicell thunderstorms, which form from multiple cells of rising air.

The conditions that are necessary for a thunderstorm to form are:

- A sufficient amount of moisture in the atmosphere.

- An unstable atmosphere (i.e., one in which warm air is rising and cool air is sinking).

- A lifting mechanism (such as a cold front or a sea breeze) to trigger the upward motion of the air.

Therefore, the answer is none of the above.