Unseasonably Cool Weather Moves through the Sierra Nevada Mountains

It’s still August, but it felt more like late October this past weekend as an unseasonably cool weather system moved through the Sierra Nevada mountains. I took this image at about 8,000 ft during a hike just south of the Lake Tahoe basin. While we didn’t experience any snow on this hike (only rain), temperatures did plummet well below freezing overnight and light snow was documented at the higher elevations from Mt Shasta to Mammoth Mountain. Remarkably, the air mass at 18,000 ft was the coldest recorded in August since at least the 1970’s. Source: Daniel Swain of Weather West (https://x.com/weather_west/status/1827445237192536435?s=46)