PMP is currently defined in the United States as: Theoretically, the greatest depth of precipitation for a given duration that is physically possible over a given size storm area at a particular ...

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 ...

Since 1901, global precipitation levels have increased by an average rate of 0.04 inches per decade, whereas in the contiguous United States, annual precipitation levels have been increasing at a rate ...