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The point is that if your air is warmer, it can hold more moisture. If that warm air then hits a cold air mass, as the air cools, it will release it’s moisture. If the cold air mass is cold enough, that moisture will freeze before hitting the earth, and we will have a storm.

Heat the air and it expands. Cool the air and it contracts. Moisture content can change, but water vapor is a gas and expands and contracts with the air. What the argument ignores is that moisture only forms from vapor if it has a nucleus or catalyst. There has to be a greater nucleus or catalyst to get more moisture formed by the vapor. Otherwise it remains vapor and stays as a gas you can breath.

Dang, that is how you get more moisture from the air. You cool it. Cool a gas (water vapor) and it becomes liquid (moisture). Heat a liquid (water) and it becomes a gas (vapor).

The point is that if your air is warmer, it can hold more moisture. If that warm air then hits a cold air mass, as the air cools, it will release it’s moisture. If the cold air mass is cold enough, that moisture will freeze before hitting the earth, and we will have a storm.

Let me try this again. Water vapor is a gas. You can not get more of it into air by heating the air. The vapor will expand with the air. Both are gases.