Decoding the IMD Colour Codes
The India Meteorological Department (IMD) uses a simple colour-coded system to issue weather warnings. Understanding these is the first step to being prepared. A Green alert means 'No Advisory', indicating normal weather with no significant rainfall expected;
your plans can go ahead. A Yellow alert means 'Be Aware'. This is the first level of caution, suggesting moderate rainfall is possible and could cause minor disruptions like traffic snarls or waterlogging in low-lying areas. It’s a signal to stay updated and perhaps allow for extra travel time.
When To Take Extra Precaution
When the forecast escalates, so should your level of caution. An Orange alert means 'Be Prepared'. This is issued when heavy to very heavy rainfall (between 115.6 mm and 204.4 mm in 24 hours) is expected. An orange alert signals a high likelihood of disruptions, including significant traffic congestion, power outages, and flooding. It's advisable to avoid non-essential travel and secure your home. The highest warning is a Red alert, which means 'Take Action'. It is issued for extremely heavy rainfall (over 204.5 mm in 24 hours) that poses a serious threat to life and property. During a red alert, widespread flooding and major disruptions are likely, and you should follow instructions from local authorities, which may include evacuation.
Understanding Weather Terminology
Beyond the colours, the words used in forecasts offer crucial details. 'Isolated' or 'scattered' rainfall suggests that rain will occur in only a few places within a region, while 'fairly widespread' or 'widespread' means most areas will experience rain. The IMD also describes the monsoon's intensity. A 'weak' or 'subdued' monsoon means rainfall is less than normal. 'Active' monsoon conditions indicate rainfall is one-and-a-half to four times the normal amount, while 'vigorous' monsoon means rainfall is over four times the normal, often coinciding with orange or red alerts.
Reliable Apps and Websites to Check
For the most authoritative information, turn to the IMD’s official sources. The 'Mausam' app, developed by the IMD, provides real-time updates, forecasts, and warnings directly from the source. The app is available for both Android and iPhone users and allows you to set location-based notifications for rain, thunderstorms, and other events. The IMD's official website (mausam.imd.gov.in) is also a comprehensive resource for weather bulletins and radar imagery. Another government app, 'Damini', specifically provides alerts for lightning strikes within a 20 km radius.
Popular Third-Party Weather Apps
While the IMD's apps are official, several third-party applications are also highly regarded for their accuracy and user-friendly interfaces in India. Skymet Weather is another 'made in India' app known for its reliable forecasts and detailed data from a vast network of automatic weather stations. AccuWeather is a popular global choice that offers a feature called 'MinuteCast', which provides minute-by-minute precipitation forecasts for the next two hours, letting you know exactly when the rain might start or stop. The Weather Channel and Weather Underground are other solid options that provide detailed hourly forecasts, interactive maps, and severe weather alerts.
Your Daily Monsoon Checklist
Make it a habit to run through a quick check before leaving home. First, check the IMD colour alert for your district on the Mausam app or website. This gives you the big picture. Next, look at the hourly forecast on an app like AccuWeather or The Weather Channel to understand the rain's timing. Is it expected during your commute or later in the day? Finally, if an Orange or Red alert is in effect, check for updates from local municipal corporations or traffic police on social media for real-time information on waterlogging and road closures. A few minutes of planning can save you from being stranded.
