The unexpectedly surprising wet weather regime for Northwest Indian farmlands from early this month is set to continue for another week.
Hardly have two back-to-back weather causing western disturbances passed than a third one signaled its presence into the region.
The western disturbances trace back their origin all the way west-northwest into the Mediterranean and pass periodically east.
Along the way, they trigger weather over Southeast Europe, West and Southwest Asia, Afghanistan, Pakistan and India.
They thrive on the temperature differential across latitudes to set up weather-setting systems including low-pressure areas and even depressions.
Normally, these systems are known to be sedate and controlled in their weather-creating capacity by the time they pass into Northwest India.
But they seem to have broken with the trend thus far during this month, morphing into weather systems as they enter into the country.
AGGRESSIVE FACE
This is discernible in the manner in which low-pressure areas have been thrown up by the two last western disturbances.
In the first case, the ‘low’ even intensified into a depression, triggering stormy weather, severe snow and heavy rain.
A third ‘active’ western disturbance is set to enter Northwest India tomorrow and set up a low-pressure area over Southwest Rajasthan.
The ‘low’ would get dissipated by the next day, but the energy brought on by it will take some time to wither.
The combined system would cause scattered rainfall/snowfall for at least the next four days, an India Meteorological Department (IMD) update said.
RAIN, SNOW
Jammu and Kashmir, Himachal Pradesh and Uttarakhand would be worst hit with accompanying isolated heavy snowfall.
Punjab, Haryana, Rajasthan, NCR Delhi, Uttar Pradesh and Madhya Pradesh may witness thundershowers when isolated hailstorm may also occur over the region.
Farmers in Punjab, Haryana, Rajasthan, NCR Delhi, Uttar Pradesh and Madhya Pradesh have been advised to withhold irrigation in field crops during the period.