Winds

1. The heavy clouds

{He raised up the heavy clouds}(ArRad 12)
{Allah is the one who sends the winds like heralds of his mercy when they have carried the heavy laden clouds}(Al Araf 57)

The weight of the cloud is determined by volume and density. and an average of 1 kilometer length = approximately 2 million kilograms !! , Scientists estimate more than 10 billion tons of water flying in clouds above us in the atmosphere, this is the statement of meteorologists today

2.Fecundate clouds

{We send forth the winds that fecundate .we cause the water to descend from the sky ,we provide you with the water -you could not be the guardians of its reserves.}(Al-Hijr 22)

As we see only part of the cloud is raining !! The reason is that in order to condense water vapor to a drop of water, the clouds must collide with wind loaded with fine dust, so that each atom of dust will be a nucleus which water vapor condense around then the steam will rise and a drop of water will fall on the ground. Except for fecundate wind, it is never raining