The India Meteorological Department (IMD) has forecast heavy rainfall, thunderstorms, lightning and gusty winds across several parts of India on Tuesday, October 20. Tamil Nadu, Puducherry and Karaikal are likely to receive heavy to very heavy rainfall at isolated locations. Heavy showers are also expected in the Andaman and Nicobar Islands, Coastal Andhra Pradesh, Kerala and Mahe.
The weather department has warned of thunderstorms and strong winds across several southern states over the coming days. Meanwhile, a well-marked low-pressure area over the southwest Arabian Sea is expected to move towards the coast of Somalia later this week.
Tamil Nadu and Puducherry Rainfall Forecast
Tamil Nadu, Puducherry and Karaikal are likely to experience heavy to very heavy rainfall at isolated places on October 20. Isolated to scattered showers are expected between October 19 and 25, with heavy rainfall likely to continue from October 22 to 25.
Thunderstorms accompanied by lightning and gusty winds of 40–50 kmph, with gusts reaching up to 60 kmph, are also likely at isolated locations during this period.
According to the IMD, an upper-air cyclonic circulation over the southwest Bay of Bengal, off the Tamil Nadu coast, extends up to 5.8 km above mean sea level. An associated trough stretching towards the northwest Bay of Bengal is also influencing the prevailing weather conditions.
Kerala, Mahe and Lakshadweep Weather Update
Kerala and Mahe are likely to receive fairly widespread to widespread rainfall from October 19 to 25. Heavy showers are expected at isolated places throughout this period.
Thunderstorms, lightning and gusty winds of 30–40 kmph, with gusts of up to 50 kmph, are forecast for October 19 and 20. Stronger winds of 40–50 kmph, with gusts reaching 60 kmph, are expected between October 21 and 23.
Lakshadweep is also likely to experience widespread rainfall during the week. Isolated heavy showers are forecast from October 22 to 25, while thunderstorms and gusty winds may occur between October 19 and 23.
Andhra Pradesh and Karnataka Rain Forecast
Coastal Andhra Pradesh and Yanam are expected to receive isolated to scattered rainfall between October 19 and 25. Heavy rain is likely at isolated locations from October 19 to 21.
On October 19, thunderstorms with lightning and winds of 30–40 kmph, gusting up to 50 kmph, are expected. Stronger gusty winds of 40–50 kmph, with gusts reaching 60 kmph, are forecast for October 20 and 21. Strong surface winds may also affect the region during this period. Rayalaseema is likely to receive isolated to scattered showers between October 19 and 25.
In Coastal Karnataka, isolated to scattered rainfall is expected from October 19 to 22 and again on October 25. Fairly widespread to widespread showers are forecast for October 23 and 24. Thunderstorms accompanied by lightning may occur at isolated places between October 19 and 23.
North Interior Karnataka may receive isolated to scattered showers on October 19 and from October 22 to 24. Thunderstorms are likely on October 19, followed by gusty winds of 30–40 kmph, with gusts up to 50 kmph, on October 22 and 23.
South Interior Karnataka is expected to experience isolated to scattered rainfall on October 19 and 20 and again on October 25. Fairly widespread to widespread showers are forecast between October 21 and 24, with heavy rainfall possible at isolated locations. Thunderstorms and gusty winds are also likely during the week.
IMD Forecast for North and Central India
The IMD has reported a Western Disturbance persisting as a cyclonic circulation over Himachal Pradesh and adjoining Punjab. An associated trough is present in the middle tropospheric levels.
An additional upper-air cyclonic circulation remains over northwest Uttar Pradesh and adjoining areas, while another circulation is present over south Rajasthan and neighbouring regions. A trough extending from southwest Rajasthan towards the northeast Arabian Sea has also been observed.
Despite these weather systems, the IMD has not forecast any significant weather changes across Northwest, Central, East, West or Northeast India during the week, apart from the specific regional conditions outlined in its forecast.
Disclaimer: This report is based on the weather forecast and information provided by the India Meteorological Department (IMD). Weather conditions may change, so readers should follow official IMD updates for the latest information.