The researchers analyzed wind patterns at Kolkata airport and used a new machine learning technique to predict wind speed and direction up to 30 hours in advance. They found that calm winds are common at the airport, with peak wind speeds typically occurring in the morning. Wind direction is most random in the early morning hours. The highest wind speeds are seen in April-July, while December and January have the lowest. The machine learning technique accurately predicted wind speed, with slightly less accuracy for wind direction. Overall, the predictions were within acceptable limits considering the randomness of wind direction.