IMD's faulty forecast for North India: Wrong signals by models, difficulty in predicting wind patterns

The India Meteorological Department's monsoon forecast for parts of north India went haywire for a variety of reasons, including incorrect model signals and difficulty predicting the outcomes of interactions between easterly and westerly winds.

Wrong signals by models, difficulty in predicting the outcomes of the interactions between the easterly and westerly winds were some of the major reasons behind the India Meteorological Department's monsoon forecast for parts of north India going haywire, experts pointed out as any relief from the oppressive heat eludes the region. The Southwest Monsoon has reached almost all parts of the country but has stayed away from parts of north India. It is yet to reach Delhi, Haryana, parts of west Uttar Pradesh and west Rajasthan. The India Meteorological Department (IMD) had predicted that monsoon is expected to cover these parts by June -- a little less than a month back, but its predictions are yet to come true.