"Miragulous" circumstances in Øresund

At one point this afternoon the sky over Øresund looked menacing:

However, we did not get the expected rain - or snow - as some friendlier skies began popping up:

The mirage effect was clearly visible, when the small Dutch tanker Bro Grace passed Helsingør on its way to Kalundborg:

The small fishing boats on the left of the Bro Grace appear to be floating in the air.

On the right side you can see the passenger ferry Pernille "floating".