On Thursday evening, Mumbai witnessed light rain, attributed to an active weather system known as a western disturbance. The India Meteorological Department (IMD) issued yellow alerts for thunderstorms in Thane and Raigad districts, anticipating further weather activity across northwest India around April 3-4 and again on April 7. The IMD forecasts light to moderate rainfall, thunderstorms, and gusty winds for various regions, including Delhi and parts of central and western India. Meanwhile, Mumbai's air quality is becoming increasingly concerning, with a report indicating that particulate pollution is on the rise, particularly in winter and post-monsoon months. Factors such as low wind speeds and high humidity are trapping pollutants, leading to increased PM2.5 levels. Major pollution sources include traffic emissions and construction dust. Experts recommend implementing stricter dust-control measures and improving traffic management to address the city's pollution challenges.