Variation on a theme

One certain way to bring the rain is to hang out some washing or maybe to wash the car. To bring on a heat wave wear a nice thick coat.

Well we've just spent hours cleaning the house and, coming in from the South there are some very dark clouds. I don't think it's rain; it could be smoke from the forest fire that's burning out of control in Valencia at the moment or, more likely, it's a dust cloud blowing in from North Africa ready to coat all our newly cleaned surfaces with a layer of orange dust.