Rainbow or cloud?

Stormy subtropical weather does not suit me. I am pining for drier, higher climes…

However, this climate does have its special effects that only happen here.

Like this week.  A brief storm and shower, then the mountain lowered its clouds into the valley.

But the day wasn’t over and the sun exerted its supremacy.

As the cloud rose back up, its indefinite lower edge was tinged with rainbow colours, like an oil slick. But no rainbow ‘bow’.

Was I seeing correctly?

rainclouds-2

But as the sun won, the cloud was clearly cloud and the rainbow was a rainbow.

Just for a few moments they had merged identities. For me.