Weather Forecast October 20: Heavy Rain Likely in Tamil Nadu, Kerala, Karnataka & Andhra Pradesh

Key Takeaways:

• Heavy rainfall: Light to moderate rain with a few heavy spells is likely over Andhra Pradesh, Tamil Nadu, South Karnataka and Kerala.
• Arabian Sea system: A well-marked low-pressure area may intensify into a depression and move towards the Somalia coast in 2–3 days.
• Moderate rainfall: The Andaman and Nicobar Islands, South Konkan and Goa, and Lakshadweep may receive light to moderate rain.
• Light rainfall: South Chhattisgarh, Telangana, South Odisha and Tripura may experience light rain.
• Forecast Validity: Next 24 hours.

The Weather Systems Over The Country

A cyclonic circulation is over the Southwest Bay of Bengal and adjoining North Tamil Nadu coast, extending up to 5.8 km above mean sea level.

A trough is extending from the above cyclonic circulation to the Northwest Bay of Bengal, extending up to 1.5 km above mean sea level.

Another cyclonic circulation is over North Interior Karnataka and adjoining areas at lower levels.

A well-marked low-pressure area over the Southwest Arabian Sea has moved slowly eastward and persisted over the same region. The associated cyclonic circulation extends up to 9.6 km above mean sea level. It is expected to intensify into a depression and is likely to move initially in a north-northeastward direction, gradually recurving towards the northwest, and moving towards the Somalia coast during the next 2 to 3 days.

The Western Disturbance is seen as a cyclonic circulation over Himachal Pradesh and adjoining Punjab at 3.1 km above mean sea level.

A cyclonic circulation is over South Rajasthan and adjoining areas.

Another cyclonic circulation is over Southeast Bangladesh and adjoining Tripura at 1.5 km above mean sea level.

Weather Activities During The Last 24 Hours

During the last 24 hours, light to moderate rain with one or two heavy spells occurred over West Madhya Pradesh and the Andaman and Nicobar Islands.

Light to moderate rain occurred over Kerala, Tamil Nadu, Rayalaseema, Coastal Andhra Pradesh, Konkan and Goa, and parts of Karnataka.

Light rain occurred over Lakshadweep, Coastal Andhra Pradesh, and Telangana.

Forecast

During the next 24 hours, light to moderate rain with a few heavy spells is possible over Andhra Pradesh, Tamil Nadu, South Karnataka, and Kerala.

Light to moderate rain may occur over the Andaman and Nicobar Islands, South Konkan and Goa, and Lakshadweep.

Light rain is possible over South Chhattisgarh, Telangana, South Odisha, and Tripura.

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