Severe convection is still most likely to occur when there is significant vertical wind shear, warmer, moist air close to the surface, & cold, dry air above.
More convection can result in much greater clouds forming as the air rises higher before cooling, occasionally producing Cumulonimbus clouds and occasionally even thunderstorms.
The main source of energy for thunderstorms is latent heat. The more latent heat is released, the more the thunderstorm intensifies as the humidity rises. Convection cannot happen without instability.
The moisture concentration would be higher close to the planet's surface than higher just above the earth's surface, especially when soils are moist. Condensation will form first when the air cools because it contains more moisture.
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