It’s the middle of summer, so naturally, it’s getting blisteringly hot. To keep the heat out, I’ve lately been closing my blinds beginning in the late morning and don’t open them again until the sun sets—usually around civil or nautical twilight.

Las Vegas was covered in storm clouds today that blocked the sun, but the clouds only extended across the city and not out by the mountains. This engulfed the city in darkness, but the mountains were still sunny. Here’s a view from central Las Vegas facing northwest: