Decoding the IMD's Colour-Coded System
The IMD uses a four-colour code to warn the public about the severity of upcoming weather events. This system is not just for rain; it also covers thunderstorms, cyclones, heatwaves, and cold waves. The goal is to provide a simple, easy-to-understand
warning that helps people and disaster management authorities take appropriate action. The colours—Green, Yellow, Orange, and Red—represent an ascending order of intensity, moving from 'no action needed' to 'take immediate action'. Understanding what each colour signifies can make a significant difference in ensuring your safety while travelling.
Green Alert: All Is Well
A Green alert means 'All is well'. It indicates normal weather conditions with no significant disturbances expected. For commuters, this is a signal that you can proceed with your travel plans without any weather-related precautions. There's no advisory issued, and daily activities can continue as normal.
Yellow Alert: Be Aware
A Yellow alert means 'Be Aware'. This is the most common cautionary warning, suggesting that weather conditions might change for the worse and could cause some disruption to daily activities. It doesn't mean you need to cancel plans, but you should stay updated and be cautious. For Driving: Plan for minor delays. Heavy rain could lead to slower traffic and localised waterlogging in low-lying areas. Ensure your headlights and wipers are working correctly. It's wise to check your intended route on a map for traffic updates before you leave. For Walking: This is the time to carry an umbrella or wear a raincoat. Pay close attention to the ground you're walking on to avoid slippery surfaces, puddles, and open drains. Wearing footwear with good grip is essential. For Public Transport: Services should run mostly on schedule, but be prepared for minor delays. It's a good idea to leave a little earlier than usual to account for slower travel times.
Orange Alert: Be Prepared
An Orange alert means 'Be Prepared'. This is a serious warning for extremely bad weather that is likely to disrupt daily life. This could include heavy to very heavy rainfall, which can cause significant traffic congestion, power outages, and flooding. For Driving: Reconsider any non-essential travel. If you must drive, be prepared for major disruptions, including road closures and diversions due to waterlogging. Increase your following distance, drive slowly, and never attempt to drive through deep, rushing water. Just 12 inches of rushing water can carry away a small car. For Walking: It is advisable to avoid walking outdoors if possible. The risk of falling branches, slippery surfaces, and open manholes hidden by floodwater increases significantly. For Public Transport: Expect significant delays, route diversions, or even cancellations of bus and train services. Always check with the transport provider for the latest service status before leaving home.
Red Alert: Take Action
A Red alert means 'Take Action'. This is the highest level of warning and indicates that extremely severe weather conditions are expected, posing a significant risk to life and property. Authorities may issue evacuation orders for people in vulnerable areas. For Driving: Do not drive. The risk of getting stranded in your vehicle is extremely high. Widespread flooding and severe damage to infrastructure are likely. Travel should only be undertaken in absolute emergencies, and even then, with extreme caution. For Walking: Stay indoors. It is extremely dangerous to be outside. There is a high risk from flooding, falling objects, and electrical hazards. * For Public Transport: Services will almost certainly be suspended or severely curtailed. Do not attempt to travel using public transport during a red alert. Prioritise safety and follow the instructions from local authorities.
Where to Find Official Alerts
To stay informed, rely on official sources for the latest weather updates and alerts. The IMD regularly posts bulletins on its official website (mausam.imd.gov.in). Additionally, you can download official government weather apps like 'Mausam' for city-specific forecasts and 'Meghdoot' for agrometeorological advice. Many news outlets and local authorities also disseminate these alerts through social media and real-time updates.
