What is Probability of Precipitation?

The probability of Precipitation (PoP) quantifies the chance of precipitation occurring at a specific location within a defined period. It is expressed as a percentage, combining the confidence of precipitation and its expected coverage area. 

For Tomorrow.io, the probability of precipitation is measured with the number of ensemble members with precip >= 0.1mm/total members) x 100 for each grid cell.

What Does the Probability of Precipitation Impact?

PoP assists in planning and decision-making for various outdoor and operational activities. Higher Probability of Precipitation values signals an increased likelihood of precipitation, influencing public events, construction, transportation, and agricultural activities.