The ‘western depression’ embedded in the weather-causing western disturbance has since weakened twice over in strength over Rajasthan on Wednesday.
The system wound down to a low-pressure area and lately as a cyclonic circulation in the morning, India Meteorological Department (IMD) said in an update.
It has shifted position a tad east from West Rajasthan to North Rajasthan in line with the track of the parent western disturbance.
The IMD said that the western disturbance was moving quickly to the east, which means that the heavy weather brought on by it over Northwest India would lift soon.
Heavy to very heavy rain, snowfall and hailstorm have been reported from many parts of the region over the last two days.
The ‘western depression’ was one of a kind of weather systems and has not been recorded as having developed over the Indian region in the recent past.
This is the continental ‘counterpart’ of conventional low-pressure area-turned-depression developing over the familiar breeding grounds of ocean waters.
RAIN IN SOUTH
Meanwhile, the deep western disturbance seemed to have ‘touched off’ an away-going easterly wave to activity over extreme south peninsula.
The wave was headed towards Sri Lanka, but the massive sweep of winds from the western disturbance has caused it to part with moisture to the benefit of extreme south peninsular India as well.
Clouds have since developed over the region and a usually sun-battered Thiruvananthapuram woke up to scattered clouds this morning.
IMD is of the view that the easterly wave, though weak in strength, would hold on for the next three days, triggering thundershowers over parts of Tamil Nadu, Kerala and Lakshadweep.