Fog can feel like a switch has suddenly been turned on. One moment, the road, trees or buildings ahead are clearly visible, and the next, everything looks blurred behind a layer of white. The change ...

Researchers sampling 32 fog events in Pennsylvania found that a thimble of fog water can hold roughly 10 million bacteria, even though fewer than 1% of individual droplets contain cells. Inside fog ...

For your weekend, the heat and humidity is still sticking around along with the scattered late-day thunderstorms Saturday, so ...