Now science confirms what was revealed to Prophet Mohammed (Peace be up on him) over 1400 years ago in the holy Quran that there Are three types of rainy clouds and the holy Quran describes each in detail . Also confirming that one cloud type is triangular mountain shaped.

In the name of Allah most Gracious most Merciful,

Allah is He who sendeth the winds so that they raise clouds, and spreadth them along the sky as pleaseth him, and causeth them to break and thou seest the rain downpouring from within them. And when He maketh it to fall on whom He will of His bondmen, Lo! they rejoice.

Indeed Allah the Great speaks the truth

Reference: Chapter(30) Verse "48"

In the name of Allah most Gracious most Merciful

Hasth thou not seen how Allah wafteth the clouds, then gathereth them, then maketh them layers, and thou seesth the rain come forth from between them; He sendth down from the heaven mountains wherein is hail, and smeith therewith whom He will, and averth it from whom He will. The flashing of His lightning all but snatcheth away the sight.

Indeed Allah the Great speaks the truth

Reference:Chapter (24) Verse "43"

In the name of Allah most Gracious most Merciful

And He is Who sendth the winds as tidings heralding His mercy, till, when they bear a cloud heavy(with rain), We lead it to a dead land, and then cause water to descend thereon and thereby bring by fruits of every kind. Thus bring We forth the dead. Haply ye may remember.

Indeed Allah the great speaks the truth.

Reference: Chapter (7) Verse "57"

In the name of Allah most Gracious most Merciful

And Have sent down from the rainy clouds(Juicy) abundant water *15*thereby to produce grain and plant *16*And gardens of thick (evoluting)foilage .

Indeed Allah the great speaks the truth.

Reference: Chapter (78) Verses"14-16"