Moist air. Clouds are condensation from water vapor.
Orographic Clouds
fog clouds
Thunderstorms require moist air to form. That is where the rain comes from.
Moist air masses usually form over warm tropical oceans.
produce stratus type clouds.
Cumulonimbus, or thunderstorm, clouds form from rising moist air.
Clouds form when warm moist air rises, cools and condenses.
The air must be moist.
Orographic Clouds
cools and condenses
fog clouds
Water condenses out of warm moist air to form clouds when it hits cooler air.
If there isn't enough moisture, then no clouds will form.
Cumulus clouds is an resault of updraft of warm,moist air in tall clouds.
Clouds moist air.
If there isn't enough moisture, then no clouds will form.
Warm, moist air.