Have you ever wondered why it rains in one place but does not in a close-by place? There can be several reasons for such an occurrence:-
RAIN SHADOW
A rain shadow usually is an area behind a mountainous region. While it may be vigorously raining in one area, the side right opposite the mountain may be completely dry. This is also the reason for the Tibetan Plateau being one of the driest places on Earth, since it is right on the other side of the Himalayas.
EXCESS HEAT
As the Earth heats up, air warms up, expands and rises. Due to this, the rising air condenses and pours down as rainfall. This is aggravated by climate change. Also, areas which are warmer than others may end up drawing in convection currents which induce rainfall.
HOWEVER, WHY DOESN’T ALL THE RAIN POUR DOWN ON ONE FLAT AREA?
Let’s say that there are no landscapes to impede rain. Why doesn’t it rain everywhere then? In this case, cloud size becomes a rather dominating factor: it can only rain where a cloud is situated, since clouds store water vapour which eventually pours down. If the cloud isn’t large enough, it may not rain everywhere.
In fact, the rain which falls down onto land is a minute fraction of the rain which starts to come down from the clouds. This is because as the raindrops fall, the air gets hotter and hotter leading to evaporation of the raindrops.
