Alice Whitfield captures the double rainbow before the storm arrives Friday, Nov. 14. Anza Valley Outlook/Courtesy photo
As Friday’s atmospheric river began drenching the Anza Valley, a bright double rainbow stretched across the horizon, offering a fleeting splash of color before the downpours took hold.The Nov. 14 storm brought a long plume of Pacific moisture into Southern California, sending steady rain and blustery conditions across the Valley. But in the first light showers, residents were treated to a double rainbow arching over hills, roads and ranches - a colorful prelude to the storm.A double rainbow occurs when sunlight is both reflected and refracted inside raindrops in the atmosphere. The primary rainbow is formed when light enters a raindrop, bends, reflects once off the inside surface, and exits - creating the fam
