Sometimes, when I am driving around in the fall, the sky will light up with fiery clouds and fierce winds. The night I saw this, I was returning home from a portrait shoot. I had photographed cheese making at work earlier in the day, then headed right out for a portrait session after getting home. By the time our session ran out of daylight, I figured I was done for the day. Midway home I passed this open valley... not five miles from my house... and the clouds were just beginning to race across the sunset. Five minutes later and the sky was pale grey purple and the sun was long below the horizon.