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The western disturbance and its offspring low-pressure area peaked on Friday and let off steam, but not before pelting the hills and the plains of North-West India with heavy snow and rainfall, hailstorm, thunder, and lightning.
More western disturbances are set to hit the North-West this weekend and extend into next week. A feeble westerly may check in by Sunday and an ‘active’ one (not ‘intense’) by Wednesday next.
Wind interaction
The interaction of the active disturbance with an easterly wave trough would extend the violent weather into the South, forecasts by the India Met Department said.
This interaction could cause scattered to fairly widespread rain/thundershowers and isolated hailstorms over parts of Central and adjoining Peninsular India on February 12 and 13.
The unsettled weather would return to the plains of Central and North India as easterly winds from the Bay of Bengal run into the westerlies and extend the line of interaction northward from Friday to Saturday.
The rainfall activity could later shift to East and North-East India by February 17 and 18. In quick succession, yet another active western disturbance could start affecting the North-West from Sunday.
Trough delves deep
On Friday, however, a section of the prevailing disturbance entered Jammu & Kashmir while the rest lay over North Pakistan. Then it delved deep to the South, reaching into Ratnagiri in Maharashtra.
This was represented by a trough with a reach extending right down into the East-Central Arabian Sea. It packed winds of up to 45 km/hour off the Maharashtra-Goa coasts on Friday.
In line with the overall eastward movement of the western disturbance and the ‘low’ that has since weakened into a cyclonic circulation, the rainfall belt too has shifted further East.
Thunderstorms accompanied with hailstorms are now forecast at isolated places over East and North-East India during the next two days.
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