India weather (October 25): Heavy rain alert for Tamil Nadu, Kerala; check IMD's state-wise forecast

The India Meteorological Department (IMD) has forecast heavy to very heavy rainfall, with isolated extremely heavy downpours, over Kerala, Mahe, Tamil Nadu, Puducherry and Karaikal. Several other regions, including the Andaman and Nicobar Islands, Lakshadweep and south interior Karnataka, are also likely to receive heavy rain, while thunderstorms, lightning and gusty winds are expected across multiple states, the weather agency said in its daily bulletin.

Check IMD's state-wise forecast

Odisha steps up preparedness for cyclone Arnab

Odisha is preparing for the possible impact of cyclone Arnab, with the IMD forecasting that the system could intensify into a cyclonic storm over the west-central Bay of Bengal on October 26 and move towards the Andhra Pradesh coast by the morning of October 28.

Chief Minister Mohan Charan Majhi said on Saturday that the state government had reviewed the potential impact of the system and assigned responsibilities to various departments to ensure preparedness. The government has set a target of zero casualties.

Heavy to extremely heavy rainfall warning for Kerala, Tamil Nadu

The IMD has forecast heavy to very heavy rainfall, with isolated extremely heavy downpours, over Kerala and Mahe, as well as Tamil Nadu, Puducherry and Karaikal.

The weather department has warned of heavy to very heavy rainfall in the Nilgiris district and several other parts of Tamil Nadu over the next three days.

The districts likely to receive heavy to very heavy rainfall include Villupuram, Cuddalore, Mayiladuthurai, Nagapattinam, Tiruvarur, Thanjavur, Kallakurichi, Tiruvannamalai and Coimbatore. The warning also covers Puducherry, Karaikal, Tiruvallur, Chennai, Chengalpattu, Kancheepuram, Pudukkottai, Vellore, Ranipet, Tirupattur and Ariyalur.

Theni, Dindigul and Madurai districts are also likely to receive heavy rainfall, according to an IMD bulletin.

Andhra Pradesh braces for heavy rainfall

The IMD has forecast heavy to very heavy rainfall at a few places in north coastal Andhra Pradesh on October 27, with isolated extremely heavy rainfall possible.

On October 28, isolated locations could receive extremely heavy rainfall exceeding 20 cm in 24 hours as the weather system approaches the coast.

West Bengal, Bihar, Jharkhand and Chhattisgarh may receive heavy rain

The developing Bay of Bengal system could bring rainfall and squally winds to parts of eastern and central India.

In West Bengal, the effects of the system may begin to be felt from October 27. Light to moderate rainfall is expected in Kolkata, while coastal areas may experience squally winds. Isolated heavy rainfall is likely in some districts between October 28 and 30.

The IMD has also forecast isolated heavy rainfall in parts of Bihar, Jharkhand and Chhattisgarh on October 28 and 29.

Heavy rain likely in Andaman and Nicobar Islands, Lakshadweep

Heavy rainfall is likely at isolated places over the Andaman and Nicobar Islands, Lakshadweep and south interior Karnataka, according to the IMD.

Thunderstorms, lightning and gusty winds expected in several states

Thunderstorms accompanied by lightning and gusty winds of 40-50 kmph are likely at isolated places over the Andaman and Nicobar Islands, east Madhya Pradesh, Tamil Nadu, Puducherry and Karaikal.

Gusty winds of 30-40 kmph are also forecast over Andhra Pradesh, Kerala, Mahe and Lakshadweep. Karnataka may experience thunderstorms accompanied by lightning.

Squally weather forecast over Bay of Bengal, Andaman Islands

Squally weather, with wind speeds of 50-60 kmph and gusts reaching 70 kmph, is likely over the east-central Bay of Bengal, adjoining west-central and southeast Bay of Bengal, and along and off the Andaman Islands.

Strong winds likely along Karnataka, Kerala coasts and Lakshadweep

The IMD has forecast squally weather, with wind speeds of 35-45 kmph and gusts reaching 55 kmph, along and off the Karnataka and Kerala coasts, over the Lakshadweep area and in the Comorin region.

Strong surface winds are also likely at isolated places over Andhra Pradesh.

Delhi weather on October 25

Delhi is likely to remain dry on Sunday, October 25, according to the IMD forecast. Haryana, Chandigarh and Noida are also expected to experience dry weather.