Snow ratios can provide rough estimates of potential snowfall accumulation. Here's how the math works.

While the Upper Ohio Valley is no stranger to heavy rainfall and flooding, the conditions that have been in place over the past couple of days have supercharged the atmosphere to produce some ...

NORFOLK, Va. — Meteorologists use several tools at their disposal that help to determine the amount of moisture that is present in the atmosphere at any given time. Two recognizable examples of this ...

Imagine wringing out the entire atmosphere like a sponge; how much water would fall? That’s what precipitable water tells us. Precipitable water (often abbreviated as PWAT) is a measure of how much ...

As the weather grows warmer, so, too, does the chance of heavy thunderstorms. Many people associate high humidity with a higher chance of big storms, and there is some truth to that association. But ...

Correlation analysis between precipitable water vapor (PWV) and precipitation over China was conducted by combining high-quality PWV data based on 1999–2015 ground-based global positioning system (GPS ...