We have a high-pressure cell hovering over us this weekend – keeping the clouds of the jet-stream away, and giving us a beautiful clear blue sky* and warmer temperatures (70’s º F/ 20’s ºC).
*And just why is the sky blue? Because of Rayleigh scattering. In plain English, the molecules of the earth’s atmosphere scatter the shorter wavelengths of light from the sun more than the longer ones, and the human eye sees the blue. If our eyes were more sensitive to violet light, the sky would have been violet. When the sun sets, the scattering of the red color wavelengths become more predominant, and we see red and pink).
