Isolated heavy rainfall is very likely over sub-Himalayan West Bengal and Sikkim on Sunday, while coastal and southern Karnataka, Tamil Nadu, and Kerala should brace for the same until October 6, Tuesday, the India Meteorological Department (IMD) said in a forecast today.

Isolated thunderstorms, lightning, and gusty winds are predicted in regions of Haryana, Delhi, and Punjab from Wednesday to Friday (October 7 to 9). Isolated to scattered rainfall is likely over the national capital and neighbouring states, including Uttar Pradesh, until October 10, Saturday.

An upper air cyclonic circulation lay over Sikkim, while another lay over the Gulf of Mannar. Under the influence of these systems and a trough running from northeast Bihar to the Northwest Bay of Bengal, fairly widespread to widespread rainfall is likely over Jammu-Kashmir-Ladakh-Gilgit-Baltistan-Muzaffarabad on October 9, Friday.

"Isolated thunderstorm, lightning & gusty winds (speed reaching 40-50 kmph gusting to 60 kmph) likely over Himachal Pradesh during 6th-8th October, with gusty winds (speed reaching 30-40 kmph gusting to 50 kmph) likely over Jammu-Kashmir-Ladakh-Gilgit-Baltistan-Muzaffarabad on 6th October and on 8th October; Uttarakhand during 5th-7th October," the IMD forecast read.

READ THE IMD FORECAST IN FULL HERE

Earlier, the Meteorological Department forecast further rainfall in Uttarakhand between October 5 and 7. Consequently, there is a likelihood of rapid weather changes in the Himalayan region, it had said. Following weather improvement, there has been a sudden surge in the number of pilgrims visiting Uttarakhand.

In the southern peninsula, there is a possibility of scattered rainfall until October 10. "Isolated to Scattered rainfall likely over Coastal Andhra Pradesh & Yanam, North Interior Karnataka, Rayalaseema, South Interior Karnataka and Tamil Nadu, Puducherry & Karaikal during 4th-10th October; Kerala & Mahe during 7th-8th Oct," the report added.

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