The India Meteorological Department (IMD) issued a district-level red alert covering all 11 districts of Delhi. The warning was valid until 9:45 am.

Persistent showers led to water accumulation on roads and low-lying stretches, raising concerns about traffic disruptions during the morning rush hour.

Heavy showers were reported from prominent locations including Parliament Street, Connaught Place, the AIIMS area, ITO, R.K. Puram and Ferozeshah Road.

The IMD forecast moderate rainfall at many places across Delhi, with isolated locations likely to receive heavy to extremely heavy showers. Thunderstorms, lightning and gusty winds are also expected.

The latest weather warning came a day after intense rainfall caused extensive waterlogging, traffic congestion and disruptions to flight operations across Delhi-NCR.

Gurugram and Faridabad were placed under a yellow alert, with further rainfall expected. Noida remained heavily overcast, although no specific weather warning had been issued for the city.

On Monday, heavy rain brought traffic to a crawl across several parts of Delhi, Gurugram and Noida, with long queues reported on major roads as rainwater accumulated on key stretches.

Air travel was also disrupted on Monday, with 26 flights cancelled, 15 diverted to other cities and more than 390 delayed during the day.

The latest spell of rain pushed cumulative monsoon rainfall above normal at several Delhi weather stations. Till August 24, Safdarjung recorded 246.2 mm against a normal of 191.1 mm, an excess of 29 per cent.

Palam received 227.2 mm, 28 per cent above normal, while Lodi Road recorded 233.2 mm, 22 per cent higher than normal. Ridge recorded 243 mm, 50 per cent above normal, while Ayanagar received 266.3 mm, 66 per cent above normal.

The IMD attributed the intense showers to the interaction between a middle- and upper-level western disturbance and a lower-tropospheric trough extending from a low-pressure area over Gangetic West Bengal towards southwest Uttar Pradesh.

Air quality across Delhi-NCR remained largely in the poor category. Anand Vihar recorded the highest pollution level among the listed stations, with an AQI of 208.

AQI readings included Mundka at 81, CRRI Mathura Road at 96, Rohini at 130, Punjabi Bagh at 114, Chandni Chowk at 135, Narela at 90, Shadipur at 64, R.K. Puram at 109, Pusa at 123, North Campus at 131, Cantonment Area at 103 and Sonia Vihar at 131.