Convectional rain Flashcards
Step 1
The Sun heats up the earth
Step 2
Overlying moist air (in contact with the ground) is heated up by conduction, convection and radiation
Step 3
The warm moist air rises and expands. It is now able to hold more moisture
Step 4
As the moist air rises, it starts to cool
Step 5
Further cooling causes the moist air to reach dew point temperature. At this temperature, the moist air is saturated. RH is at 100% (Dew it. DEW IT)
Step 6
Condensation takes place, where water vapour changes into water droplets
Step 7
Water droplets coalesce to form clouds. Continuous uplifting of air by convection causes formation of cumulonimbus clouds
Step 8
The water droplets (clouds) cannot resist gravity and are too heavy to be suspended, thus breaking up and falling as convectional rain