Rain classification | Rainfall (mm) | Occurrence/Duration (minutes/hour) |
Light | up to 0.8 in 10 minutes | from 1.1 to 5.1/hour |
Moderate | up to 4.0 in 10 minutes | from 5.1 to 25.0/hour |
Heavy | up to 8.0 in 10 minutes | from 25.1 to 50.0/hour |
Intense | over 8.0 in 10 minutes | more than 50.0/hour |