The Official Source: IMD's Colour Codes
In India, the primary agency for weather forecasting is the India Meteorological Department (IMD). To make its alerts easy to understand for everyone, the IMD uses a four-level, colour-coded system. These alerts—Green, Yellow, Orange, and Red—are not
just for rain but also cover events like cyclones, thunderstorms, and heatwaves. They are designed to warn the public and disaster management authorities about the severity of upcoming weather and the level of action required. For any traveller, learning to read these colours is the first step toward a safe journey.
Green Alert: All Is Well
A green alert means 'All is well'. When you see this, it signifies normal weather conditions with no significant disturbances expected. It might mean light, sporadic showers or even dry weather. No specific advisory is issued with a green alert, meaning you can carry on with your daily activities and travel plans without needing any special weather-related precautions.
Yellow Alert: Be Aware
A yellow alert is a signal to 'Be Aware' or 'Be Updated'. This is a common cautionary warning during the monsoon, indicating that weather conditions could worsen and potentially cause some disruption to your daily plans. It doesn't mean you need to cancel your trip, but it does mean you should stay vigilant. Expect the possibility of moderate to heavy rain, which could lead to slower traffic or localised waterlogging in low-lying areas. It's wise to carry an umbrella, allow for extra travel time, and keep a close eye on weather updates before you head out.
Orange Alert: Be Prepared
An orange alert means 'Be Prepared', and it should be taken seriously. This warning is issued for extremely bad weather that is likely to cause significant disruption. This often involves heavy to very heavy rainfall, which has a high potential to cause traffic chaos, flooding, power outages, and interruptions to rail and air travel. If you see an orange alert, you should reconsider any non-essential travel. If you must go out, be prepared for major delays and never attempt to drive or walk through deep, fast-flowing water.
Red Alert: Take Action
A red alert is the highest level of warning and means it's time to 'Take Action'. It indicates that extremely severe weather is imminent or already occurring, posing a significant threat to life and property. A red alert is issued when weather conditions are expected to be so bad that they will upend travel and power, and authorities may issue evacuation orders. During a red alert, your safety is the top priority. You should avoid all non-essential travel, stay indoors, and follow all instructions from local authorities.
Where to Find Weather Warnings
For the most reliable and up-to-date information, always turn to official sources. The IMD's primary website is mausam.imd.gov.in. Additionally, the government has developed several mobile apps to help disseminate information. The 'Mausam' app provides real-time weather information, forecasts, and push notifications for severe weather alerts for both Android and iOS. Other useful government apps include 'Meghdoot' for agricultural advice and 'Damini' for lightning warnings. These tools are essential for any traveller wanting to stay safe and informed during India's monsoon season.
