The India Meteorological Department (IMD) has issued a warning for significant weather events in Goa this week, with pre-monsoon showers, thunderstorms, lightning, and gusty winds expected. The IMD forecasts moderate to heavy rainfall in many areas on May 13 and 14, with light to moderate rain or thundershowers expected on May 15. Some isolated instances of light rain are anticipated on May 16, 17, and 18, along with haze in the morning of May 13.