Authorities in southern India ordered the closure of schools and offices, the grounding of flights and the evacuation of coastal areas today ahead of the expected arrival of a severe cyclone with torrential rains in the next 24 hours.

Cyclone Michaung is expected to make landfall in the southern Indian state of Andhra Pradesh tomorrow, Tuesday morning, the country’s weather service said, with sustained winds of 90-100 kilometers per hour and gusts of 110 kilometers per hour.

Authorities in Andhra Pradesh and neighboring Tamil Nadu are on high alert for damage, evacuating thousands of people living in coastal areas, officials in both states said, while warnings were issued for fishermen not to venture out to sea.

Media showed footage of cars floating in water that has flooded streets in Chennai, a city of nearly 7 million people and the capital of Tamil Nadu, as torrential rain falls. Some parts of the city have been submerged in knee-deep water and there have been power outages since this morning, an eyewitness told Reuters.

Authorities have ordered no flights at Chennai airport today, citing “severe weather conditions”.

Tamil Nadu’s industries ministry, which is a manufacturing hub and home to major electronics and auto manufacturers including Hyundai and Apple supplier Foxconn, said only “essential supply companies” would operate for now.

Schools, colleges, offices and banks will remain closed today and tomorrow, Tuesday, in at least four districts of Tamil Nadu due to weather conditions, a government release said.

Parts of Andhra Pradesh are likely to receive more than 200mm of rain in the next 24 hours, according to the India Meteorological Department.

In Andhra Pradesh, authorities have evacuated nearly 7,000 people from their homes in 8 coastal areas and are preparing to evacuate a total of 28,000, depending on the cyclone’s path and intensity, a senior state emergency management official said.

In Tamil Nadu, authorities declared a public holiday in four coastal districts and asked people not to leave their homes unless absolutely necessary.