Question

why is monsoon wind is known for its uncertainities

Answer 1

Monsoon wind is known for its uncertainties because
(i) The movement of low-pressure trough controls the spatial distribution of rainfall.
(ii) The alteration of wet and dry spells varies in intensity, frequency and duration.
(iii) It sometime causes heavy floods in one part, it may be responsible for drought in other.
(iv) It is often irregular in its arrival and retreat.

Answer 2

Monsoon wind is known for its uncertanities because

Imdian Monsoon are dependent upon south west monsoon winds. At times, due to reversal of temperature or some other climatic conditions such as EL NINO, monsoon gets delayed.