With no signs of rain, warm days and cold nights to continue
The city will experience warm days and chill nights for a while longer as there are no signs of rain.
On Wednesday, Nungambakkam and Meenambakkam recorded a maximum temperature of 30.1 degree Celsius and 31 degree Celsius, one and two degrees above the average, respectively. However, the minimum temperature has dipped by a degree to 20 degree Celsius in the city, leading to nippy weather.
For the past few days, the minimum temperature has consistently remained below normal at 19 degree Celsius, cooling the earth. As the weather models do not indicate any rainfall over the city region, the present weather pattern is likely to continue for a few more days.
Though formation of fog or mist has been forecasted, it is not alarming, say officials. Fog that formed during the morning hours for the past two days had reduced visibility by less than one km. On Bhogi day that fell on Sunday, the visibility was up to 300 metre that led to diversions of flights.
Several factors, including dip in minimum temperature and increase in humidity level, contribute to formation of fog.
In Chennai, officials said that the minimum temperatures in early 1980s were as low as 13 and 15 degree Celsius during the winter months of January and February. However, in the past few decades, there has been a gradual increase in the average minimum temperature recorded, to 17-20 degree Celsius. This only indicates rapid urban development and increase in pollution levels.
In the past three decades, the lowest minimum temperature was 15.6 degree Celsius recorded on January 27 in 1982. Last year, the night temperature had dipped to 17.7 degree Celsius on January 17.
The department forecasts that the maximum and minimum temperature will be 30 and 20 degree Celsius, respectively, in the city for the next two days.