Delhi and the National Capital Region (NCR) people got some relief from scorching heat today, June 17 after the rainfall. The India Meteorological Department (IMD) issued an orange alert at 12.45 PM today for Delhi-NCR forecasting light to moderate rain.

Meanwhile, the Regional Meteorological Centre (RMC) in Chennai has predicted the formation of a low-pressure area over the Bay of Bengal and issued a heavy to very heavy rainfall warning for several districts in Tamil Nadu.

The warning comes as persistent rains lash the Nilgiris and ghat areas of Coimbatore, triggering multiple incidents of tree falls and mudslides that have kept rescue teams on high alert.

According to the RMC, an upper air cyclonic circulation prevailing over the northwest Bay of Bengal is expected to intensify into a low-pressure area by Tuesday.

Forecasters say there is a high likelihood that the system will deepen further and move in a northwesterly direction in the coming days. The weather agency attributed the ongoing weather fluctuations to the combined effects of this emerging low-pressure system and a strengthening southwest monsoon. As a result, a red alert for heavy to very heavy rainfall has been issued for isolated areas in the Nilgiris and Coimbatore's ghat sections until June 18.

Theni and Tenkasi districts have also been placed on a heavy rainfall watch. Additionally, light to moderate rainfall is expected over isolated locations in Tamil Nadu, Puducherry, and Karaikal through the weekend.

Chennai, however, is likely to see only sporadic rainfall over the next few days.

After days of sweltering heat and high humidity, relief is finally in sight for Bihar, with the southwest monsoon set to arrive via Purnea and Kishanganj within the next 48 hours, according to the Meteorological Centre in Patna.

The IMD has issued an orange alert for several districts in North Bihar, warning of heavy rainfall, thunderstorms, and lightning.

Over 20 districts, including Patna, Gaya, Bhagalpur, Munger, East and West Champaran, Siwan, Saran, and Katihar, are likely to receive light to moderate rainfall in the coming days.

Heavy rain warnings are specifically in place for Sitamarhi, Madhubani, Supaul, Araria, and Kishanganj, where thunderstorms accompanied by winds reaching speeds of 40-50 kmph are expected.

Rainfall recorded in the past 24 hours has further confirmed the onset of the monsoon.

With inputs from agencies