Who Issues Weather Warnings In India?
The India Meteorological Department (IMD) is the official government agency responsible for monitoring weather patterns and issuing forecasts and warnings across the country. From cyclones to heatwaves and heavy rainfall, the IMD provides crucial information
to the public and disaster management authorities. These alerts are disseminated through various channels, including their official website, mobile apps, television, and social media, to ensure they reach as many people as possible. For travellers and daily commuters, paying attention to these advisories is the first step in planning a safe journey during periods of adverse weather.
Decoding the IMD's Colour Codes
To make warnings easy to understand, the IMD uses a four-level, colour-coded system. Each colour signifies a different level of intensity and necessary action. Green (No Warning): This means all is well. No significant weather disturbances are expected, and you can carry on with your plans without any special precautions. Yellow (Be Aware): A yellow alert is a watch signal. It indicates the potential for bad weather that could cause some disruption to daily activities. For travellers, this means you should stay updated on the weather situation, as conditions could worsen. Orange (Be Prepared): This is a serious alert. An orange warning means extremely bad weather is likely, with the potential to disrupt travel, communication, and power supply. Expect traffic jams, waterlogging, and possible delays in rail and air travel. It's wise to reconsider non-essential travel. Red (Take Action): This is the highest level of warning. A red alert is issued when severe weather is expected to cause widespread disruption and poses a significant risk to life and property. Authorities advise people to stay indoors and avoid all non-essential travel.
Understanding Rainfall Intensity
The IMD also uses specific terms to classify rainfall, measured over a 24-hour period. These definitions help quantify what a colour warning might entail in terms of actual precipitation. Light Rain: 2.5 mm to 15.5 mm. Moderate Rain: 15.6 mm to 64.4 mm. Heavy Rain: 64.5 mm to 115.5 mm. Very Heavy Rain: 115.6 mm to 204.4 mm. * Extremely Heavy Rain: Over 204.5 mm. An Orange alert is often associated with forecasts of 'heavy to very heavy' rainfall, while a Red alert typically warns of 'extremely heavy' rainfall that can lead to major flooding.
Practical Steps For Travellers
When you see a weather warning, especially an Orange or Red alert, it's time to adjust your plans. Before heading out, check your route for waterlogging or traffic diversions. Allow for significant extra travel time if your journey is unavoidable. In low-lying or flood-prone areas, an Orange alert is a signal to be highly cautious. During a Red alert, the best course of action is to postpone your travel entirely if possible. Always follow the instructions issued by local disaster management authorities. Preparing a small emergency kit with essentials like a power bank, first-aid supplies, and dry snacks is also a good practice during peak monsoon.
Where to Find Reliable Updates
For the most accurate and up-to-date information, rely on official sources. The IMD's official website (mausam.imd.gov.in) is the primary source for all weather bulletins and warnings. Additionally, the government has developed the 'Mausam' mobile app, available for both Android and iOS devices. This app provides real-time weather information, forecasts for over 450 cities, and push notifications for severe weather alerts, making it an essential tool for anyone travelling in India during the monsoon season.
