Big "S" In The Sky

Just mentioned in my last post of when would the clear sky returns, a downpour yesterday had eashed away the haze & give us back the fresh atmosphere. In the sunny & warm day, I was pumping petrol along Kuala Kangsar Road. In the great blue sky, I see this big piece of twisting itself forming an "S" shape. I can't explain how would it looked like but it just attracted me to think of a giant brush had splashed onto the sky.