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Monsoon has advanced into most parts of Maharashtra and some more parts of Madhya Pradesh, India Meteorological Department (IMD) said on Tuesday.
This came about as the eastern flank (or the Bay of Bengal branch) of the monsoon made some progress to cover more areas in east and east-central India.
FURTHER ADVANCE
Conditions are ‘becoming favourable’ for further advance of monsoon into parts Gujarat, Madhya Pradesh and Uttar Pradesh over the next three days.
Some parts of Uttarakhand too may get the first few showers during this period.
The all-important monsoon trough that links northwest India with the southeast (Bay of Bengal) too has become better evolved on Tuesday.
This trough in north India facilitates the inward flow of moisture-laden easterly flows from the Bay and consequent precipitation.
This is quite like what the offshore trough along the west coast does for westerly to southwesterly flows from the Arabian Sea.
The monsoon trough lay straddled from northwest Rajasthan to northeast Bay of Bengal across Madhya Pradesh and Orissa on Tuesday.
HEAVY RAINS
The strength and orientation of the trough determine how effective the rain coverage is across spatial and temporal scales.
On Tuesday, the offshore trough along the west coast ran down all the way from Gujarat coast to Kerala coast.
This indicated that the Arabian Sea flows are in fine fettle. The cyclonic circulation over northwest Bay of Bengal deflected these flows around the North Bay into east India.
The IMD has warned of heavy rains over Konkan, Goa, coastal Karnataka, south Chhattisgarh and Orissa during next two days and subsequently over Madhya Pradesh.
DEFICIENT TREND
Rain or thundershowers are likely at many places over west coast, east and adjoining central India, the Northeastern States and Uttar Pradesh.
Rain or thundershowers has been forecast at a few places over Punjab, Haryana and east Rajasthan.
Global forecasts favoured heavy rain for east and northeast India until Tuesday next (July 10).
But most of northwest India would be of any meaningful rain; large parts of peninsular India (western and central Maharashtra, Rayalaseema, Karnataka, Kerala and Tamil Nadu) may witness deficient rain.
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