What does a "30% chance of precipitation" mean? JMA's spring verification shows it happens 2 out of 10 times

When a 30% chance of precipitation was forecast in spring, it actually rained about 2 out of 10 times.This is the result of the Japan Meteorological Agency's own verification. Verification involves ...
WLRN

The science behind precipitation: Types of precipitation and how they form

Precipitation comes in all forms: rain, sleet, freezing rain, and snow. Some even count virga, which becomes a gas and evaporates before it reaches us as raindrops. Hail also exists but forms ...

If it doesn't rain when the probability of precipitation is 80%, is that forecast wrong?

I went out with an umbrella, but it didn't rain.It makes you want to think, "The forecast was wrong again." But how should we ...
Phys.org

Between rain and snow, machine learning finds nine precipitation types

In research that could improve weather forecasting and winter driving safety, a University of Michigan-led study distinguished nine distinct precipitation types—varieties of rain, snow and mixed-phase ...