Fact 1:

In IEEE there is a paper titled Article Modern Control Concepts in Hydrology

As per IEEE, this 1975 paper has only 13 citations, which implies that people did not find enough scientific strength in it.

Fact 2:

Fuzzy-Mamdani is a method of control system.

Fact 3:

Hydrologic processes have a rather large cycle (in terms of years), and are not based on feedback mechanisms

Would it be scientifically valid to get a forecast/prediction of rainfall using Fuzzy-Mamdani models?