Delhi to UP: IMD issues forecast, alerts for various states | India News – Times of India

NEW DELHI: A depression that has formed over central India is expected to produce severe to extremely severe storms. heavy rainfall According to the India Meteorological Department (IMD), Uttarakhand, Uttar Pradesh and nearby regions may experience thunderstorms during the next two to three days.
The latest IMD update indicated that the system was located about 50 kilometers south-southeast of Agra and 50 kilometers north-northeast of Gwalior. It is expected to continue moving north-northeast and gradually weaken on Friday. However, its impact will be felt over a large area before it dissipates.

Here is what IMD has predicted for the states mentioned below:

Uttarakhand: From September 12 to 14, the state is expected to experience light to moderate rainfall, with isolated areas receiving heavy to extremely heavy rainfall. This may lead to localized flooding, landslides and waterlogging in vulnerable areas.
Uttar Pradesh: Both the eastern and western regions are witnessing heavy to extremely heavy rainfall during this period. The IMD has warned of moderate to high flash floods flood risksespecially in western Uttar Pradesh. Rainfall intensity may range from 115.6 mm to 204.4 mm (very heavy) and may exceed 204.5 mm (extremely heavy).
Delhi: In addition, very heavy rainfall is expected in isolated areas of Delhi on September 12, and in western Uttar Pradesh on both September 12 and 13.
Haryana: Light to moderate rainfall is expected, with periods of heavy rainfall between 12 and 15 September. Urban areas may experience disruption due to waterlogging and possible flooding.
Rajasthan: West Rajasthan is likely to receive heavy rainfall on September 12, while East Rajasthan is likely to receive heavy to very heavy rainfall on September 12 and 13.
Madhya Pradesh: Heavy rainfall is expected on 12 September, with moderate to heavy rainfall over the following days. This may lead to surface runoff and flooding in low-lying areas.
The depression follows a period of significant rainfall in central India. From 5 to 11 September 2024, extremely heavy rainfall was reported in Chhattisgarh, Odisha and Madhya Pradesh, with very heavy rainfall in Gujarat and eastern Rajasthan. The cumulative rainfall over India for this period was 50.9 mm, which is 14% above the long period average (LPA). The seasonal rainfall departure from 1 June to 11 September 2024 is +8% above the LPA.

Why is it not classified as a cyclone?

The current system is not classified as a cyclone because it does not meet the intensity criteria set for cyclones. Although it has brought a lot of rain and has the potential for severe weather, it lacks the sustained high winds and organized cyclonic circulation typical of tropical cyclones.

Cyclonic circulation over Bangladesh: Depression over North India

According to IMD, the depression that was earlier over northwest Madhya Pradesh has been moving north-northeastwards at a speed of 10 km/hr during the past six hours. On September 12 at 08:30 IST, the depression was located over southwest Uttar Pradesh, near 27.0°N latitude and 78.5°E longitude, about 50 km east-southeast of Agra. The depression continued its north-northeastwards movement, accelerating to 13 km/hr, and at 11:30 IST, the depression was centered near 27.3°N latitude and 78.7°E longitude, about 70 km east-northeast of Agra, 90 km southeast of Aligarh, 130 km northeast of Gwalior and 140 km southwest of Bareilly. The system is expected to retain its strength through September 12, before gradually weakening on the 13th. Continuous monitoring is being done by Doppler Weather Radars at Delhi and Lucknow.
An upper-air cyclonic circulation has formed over southeastern Bangladesh and adjoining areas in the lower and middle troposphere. A low pressure area is expected to develop over the Bangladesh coast and the northern Bay of Bengal within the next 24 hours. Thereafter, the system is expected to move slowly west-northwestward, possibly strengthening into a depression over the West Bengal coast and the adjoining northwestern Bay of Bengal within 48 hours.

Week 1: September 12th to 18th

Extremely heavy rainfall is forecast for isolated regions of Uttarakhand on September 12 and 13, while West Uttar Pradesh is expected to experience similar conditions on September 12, with persistent heavy rainfall on September 13. Other regions including Haryana, Chandigarh-Delhi, East Uttar Pradesh, West Madhya Pradesh and East Rajasthan are likely to experience isolated heavy rainfall on September 12. East Madhya Pradesh and Chhattisgarh are expected to receive heavy rainfall on September 16 and 17, while Gangetic West Bengal is likely to experience rainfall on September 13 and 14. Rain is also forecast for Jharkhand, Assam and Meghalaya between September 14 and 15. Additionally, Odisha is expected to receive heavy rainfall on September 13 and 14, while Nagaland, Manipur, Mizoram and Tripura may receive rainfall on September 12 and 13.
Localised flooding is expected in urban areas of these regions, particularly in low-lying areas, leading to road closures and traffic congestion. Heavy rainfall may also lead to occasional reduced visibility, affecting traffic. Minor damage to kutcha roads and vulnerable structures is expected, particularly in areas of heavy rainfall, while landslides and mudslides are possible in hilly areas. There is also a risk of riverine flooding in certain catchment areas; for more information, the Central Water Commission (CWC) website provides more information.

Week 2: September 19th to 25th

Rainfall and Flood Risk in South India: Isolated heavy to very heavy rainfall is expected over the coastal and southern interior areas of Karnataka as well as the Ghat areas of Tamil Nadu during this period.
Localized flash flooding and waterlogging is expected in urban areas, leading to road closures and longer travel times due to traffic delays. Minor damage to roads and vulnerable structures in Kutcha is likely, along with possible landslides or mudslides in hilly areas. The heavy rainfall may also affect standing crops and horticulture in some areas due to flooding. As in week 1, certain river basins may be at risk of flooding, and detailed information is available on the CWC website.