Around 9pm on Monday, the Met office issued a nowcast about an impending thunderstorm in Calcutta and neighbouring districts.

Soon after, gusts of wind cooled the city. Plastic cups and leaves were sent flying on the Maidan.

Light rain was reported from several parts.

Earlier in the day, the maximum temperature stayed below normal but rising humidity — the minimum relative humidity was as high as 59%— meant the discomfort index was on the higher side.

The day’s temperature was 32.5° Celsius and the minimum remained at 26.3° Celsius.

Thunderstorms were in store for the entire state on Tuesday, said a Met bulletin. Some places may experience hailstorms. In Calcutta, rain and winds clocking 50kmph are likely.