What Causes Fog?
The number one reason we have fog is because of radiation fog. On cold, clear nights, what happens is the Earth radiates heat to space, the Earth’s surface cools down, that cools the atmosphere, and as it cools down, the atmosphere becomes saturated and you get fog. So, we get this shallow layer of clouds near the surface. And that’s the kind of fog we often get. If it’s really dense fog, that’s often a very good sign that the situation will clear up later in the day. Sometimes, when you’re moving up the mountain slope, you have clouds forming on the mountains, and in that case, it’s fog. Is Seattle weather predictable? A: The weather may be complex, but if you can understand the lay of the land you can understand what is going to happen. There are many local weather effects and many are cased by the mountains and the land/water contrast. As compared to the East Coast they don’t have mountains, where is it going to rain? Where is not going to rain? It’s hard to predict. Here we know on
