There is a possibility of damage to life and property, particularly in vulnerable areas. Heavy rainfall may cause dams and barrages to release excess water, leading to a rise in river levels, which could trigger flash floods, bank erosion, and overflow in certain areas. The India Meteorological Department (IMD) has issued warnings for several districts in Uttarakhand for very heavy to extremely heavy rainfall.
Based on ISRO data, the IMD has alerted that a large inland depression has entered North India, as seen from satellite images at 8.30 pm on September 11. This system is expected to bring very heavy to extremely heavy rainfall (150-350mm) to western Uttar Pradesh and Uttarakhand over the next 48 hours, starting Friday night.
A “large inland depression” refers to a low-pressure weather system that forms over land, rather than over the ocean. In meteorological terms, a depression is an area where the atmospheric pressure is lower than the surrounding areas, leading to the convergence of air masses. This causes rising air, which can result in cloud formation and precipitation.
The IMD has also alerted everyone to take necessary safety precautions and avoid going outdoors, as there is a high risk of cloudbursts and flash floods in Uttarakhand. Meanwhile, steady heavy rainfall (70-200 mm) is forecast for Delhi NCR, Haryana, and Chandigarh through the first half of Friday. Low-lying areas are at high risk of waterlogging. Further updates will follow as the situation develops, based on ISRO satellite data.
According to an IMD bulletin, a red alert is issued for Dehradun, Pauri Garhwal, Bageshwar, Champawat, Nainital, Udham Singh Nagar, and Haridwar for Friday.
The red alert districts face risk of minor to medium landslides, rockfalls, and mudslides due to heavy or intense rainfall. This may result in road and highway blockages, bridge washouts, and disruptions to community services, such as electricity and water. Transportation and supply chains could also be impacted for several days.
There is a possibility of damage to life and property, particularly in vulnerable areas. Heavy rainfall may cause dams and barrages to release excess water, leading to a rise in river levels, which could trigger flash floods, bank erosion, and overflow in certain areas. Low-lying areas, mountains, and steep hills are at risk of flash floods and rapid runoff.
Residents in areas prone to landslides are advised to move to safer locations, while pilgrims and tourists, especially those traveling to Chardham or other pilgrimage sites, should remain alert and avoid traveling. People living near major rivers, streams, and low-lying flood-prone areas should stay prepared to relocate to higher ground.
Commuters have been asked to stay alert, avoid travel during heavy rains, and refrain from crossing landslide-prone areas. Residents are suggested to monitor weather reports, stay indoors during flash floods, avoid flooded areas, and refrain from swimming or boating in swollen rivers or streams.