Why do clouds block communication from the satellite?

ANS:The variance of temperature within the cloud structure would distort the communicative waves. ANS:Well, you see, digital signals are 1's and 0's. The 1's can shoot right on through a cloud but the 0's hit the raindrops and bounce off...

Just pulling your leg...

Satellite signals are affected by water droplets in the air because they can behave like dipoles, especially in the microwave frequencies. The droplets either scatter, absorb or reflect the signal, causing signal degradation.