Kids (and adults) are not supposed to wear white after Labor Day, it's a fashion rule as old as time. I personally NEVER wear white, especially since I always inevitably spill things on it and leave stains that I can never seem to get rid of: spaghetti sauce, paw prints, lipstick, foundation makeup, red wine and even blood (don't ask)...
The Washington State Department of Transportation recommends that if you are traveling to the Gorge from the Yakima area, you can avoid significant delays by skipping Interstate 90 over the Vantage Bridge and taking State Route 24.