Visibility II / V
From the window of the bus I noticed a pillar of the rising sun and a strong side sun on the right, which also rose to a pillar-like color in the rainbow. Luckily the home stop was nearby and I walked to the open. The sun pillar had dissolved into the clouds but the side sun with its pillars was still well visible.
Unfortunately, I didn't get much of what I saw on my cell phone, but it's still a hint.