I arrived at the last camground outside Yosemite's western enterance, and spent Friday night camping in the rain. The next day, the weather continued to get worse, and once I'd climbed high enough into the mountains ( along SR 120 ) the rain turned to hail, and then snow and dense fog. Saturday I camped under falling snow in a campground midway down the canyon, and on Sunday, the storm finally started to break. This, and a photo from Tioga Lake, were the only patches of blue sky I saw all weekend.