PT50.S2.Q17 - Warm air tends to be humid, and as humidity

Prudenter Discere

I would love someone to help me with the understanding the underlying flaw. I have seen this stimulus type, and it seems very cookie cutter for me. In my understanding, the argument's flawed reasoning is that the argument assumes that 1. warmer air increases humidity, and 2. that the only thing that can cause an increase in rainfall is an increase in temperature of warm air. However, I am seeing some other patterns, it goes from a probable modality (using tends to be humid) to a highly likely modality (in the conclusion).

Admin note: added link
https://7sage.com/lsat_explanations/lsat-50-section-2-question-17/