"The sky will be partly cloudy with thundershowers in some parts of the city," said an official of the India Meteorological Department.

The maximum temperature is likely to hover around 42 degrees Celsius. Humidity recorded at 8.30 am was 31 percent. The city received 0.6 mm rainfall since Friday.

At least nine people were killed in the NCR region, including six in the national capital as the massive thunder storm lashed the region crippling road traffic, metro services and flight operations and hitting power supply.

The storm struck Delhi at 4:58 pm immediately throwing normal life out of gear.

The heavy rains accompanied by strong winds brought some relief from the soaring temperatures to Delhiites. Friday's maximum temperature was recorded at 43.7 degrees Celsius, two notches below the season's average. The minimum temperature was recorded at 29.1 degrees Celsius, two notches above the season's average.

READ MORE: Nine dead, dozens injured in Delhi squall

MeT department termed the storm as "cumulonimbus" and attributed it to western disturbance over Pakistan. NCR areas of east Delhi, Noida and Ghaziabad were most affected by the storm.

"The cumulonimbus brings tall thunderstorms and dusty winds with a speed of over 92 kmph and is caused because of western disturbance, which is currently over Pakistan. The meeting of cold air and hot air on the Indo-Gangetic plains causes low pressure area and also lot of instability. This results in severe thunderstorm," IMD Director General LS Rathore said.
    
Met office said similar weather conditions are likely to persist for over the next two days. At least 12 flights were diverted due to the storm, an IGI official said.
    
The maximum temperature recorded on Friday was 42.8 degree Celsius while the minimum was 29.1 degree.

The MeT department has also predicted bad air quality in the city for the next three days. System of Air quality Forecasting And Research (SAFAR), a constituent of Indian Institute of Tropical Meteorology, said the air quality was found "poor" following the storm.

JPN/Agencies

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