The Four Colours of Safety
The IMD uses a simple, four-colour system to communicate the severity of expected weather, helping you make informed decisions. These alerts cover everything from heavy rainfall and thunderstorms to cyclones and dust storms. The system is designed to give
you a clear, at-a-glance understanding of the potential impact on your travel plans.
Green Alert: All Is Well
A Green alert means 'All is well'. No severe weather is expected, and no specific advisories are issued. For travellers, this signals that you can proceed with your plans, whether it's local sightseeing or travelling to your next destination. It represents normal conditions, perhaps with light showers, but nothing that should cause significant disruption.
Yellow Alert: Be Aware
A Yellow alert is a signal to 'Be Aware' or 'Watch'. It indicates that weather conditions could worsen and potentially cause minor disruptions to your daily activities. This often corresponds to forecasts of moderate to heavy rainfall (between 64.5 mm and 115.5 mm in 24 hours). While widespread chaos is unlikely, you might encounter localised waterlogging or slight travel delays. It's a good time to check real-time traffic updates and have a backup plan for outdoor activities.
Orange Alert: Be Prepared
When you see an Orange alert, the message is to 'Be Prepared'. This is a warning for extremely bad weather that has the potential to disrupt transport, including road and rail closures, and even cause power outages. An Orange alert is typically issued for expected heavy to very heavy rainfall (115.6 mm to 204.4 mm in 24 hours). For travellers, this is a serious heads-up. You should reconsider long road journeys, especially in hilly areas prone to landslides, and prepare for significant delays. It’s wise to stay indoors if possible and secure your bookings.
Red Alert: Take Action
A Red alert is the highest level of warning and means 'Take Action'. It is issued when extremely severe weather is imminent and poses a significant threat to life and property. This corresponds to forecasts of extremely heavy rainfall (exceeding 204.5 mm in 24 hours). A Red alert indicates a high likelihood of widespread flooding, major infrastructure damage, and disruptions to essential services. For travellers, the advice is unequivocal: avoid all non-essential travel and follow the instructions of local disaster management authorities. Your safety is the priority.
Where to Find Reliable Information
Generic weather apps are not enough for monsoon travel. Your primary source should be the IMD itself. You can access district-wise, five-day forecasts and colour-coded warnings on the official website, mausam.imd.gov.in. For on-the-go updates, the IMD recommends its official mobile apps: 'Mausam' for general forecasts, 'Meghdoot' for agriculture-focused advice, and 'Damini' for lightning alerts. These tools provide the specific, actionable information you need to travel safely.
Putting It All into Practice
Checking IMD alerts should be a routine part of your planning. Before booking non-refundable flights or hotels, look at the long-range forecasts for your destination. In the week leading up to your trip, monitor daily warnings; an Orange or Red alert is a major red flag. While on your trip, use daily 'Nowcasts' (short-range forecasts of up to three hours) to plan local activities. A Yellow alert might mean skipping a jungle safari, while an Orange alert is a clear signal to visit a museum instead of a remote viewpoint. Being flexible and informed is the best way to enjoy the magic of the monsoons without taking unnecessary risks.
