Every location has its own forecast considerations. I've lived in; BUF, N Virginia, Chicago, Houston and Seattle. They all had their geography to complicate the forecast.
Most cities on the W coast, are more of a guess, because of the lack of reporting locations in the Pacific. San Francisco & Seattle being examples. If you have coastal mountain ranges between the city and the coast, all bets are off because the weather systems come off the Pacific, hit the mountains ans usually split, and do an end run around the mountain ranges. It's anybody's guess how/where they will clear the mountains and effect the cities as they move East.