A Break in the Dry Spell
Following an August that was unusually hot and dry for many parts of the nation, the monsoon has been in a subdued phase. However, meteorological agencies are tracking a new system that promises to change the weather map. The India Meteorological Department
(IMD) has indicated that a fresh upper-air cyclonic circulation is likely to form over the west-central and adjoining northwest Bay of Bengal. This system is expected to develop into a low-pressure area around September 11, bringing a new surge of rainfall. While the IMD's overall forecast for September suggested below-normal rainfall for the country, it also noted that parts of east, east-central, and northeast India could receive normal to above-normal rain. This new system appears to be the driver for that specific regional forecast.
Which Regions Are on Alert?
The primary impact of this system will be felt across eastern and, subsequently, central India. The low-pressure area is forecast to form off the coasts of south Odisha and adjoining north Andhra Pradesh. As the system moves inland, it is expected to bring widespread rain. The IMD has issued alerts for heavy rainfall in several districts of West Bengal, including Purba Bardhaman, Hooghly, Bankura, and the coastal districts of Purba and Paschim Medinipur and South 24 Parganas through the week. The system's influence is also predicted to extend to Chhattisgarh, Jharkhand, and East Madhya Pradesh, which are likely to see increased rainfall activity from September 8 onwards. As the low-pressure area moves west-northwest, it will carry moisture deep into the mainland.
What to Expect in Major Cities
For residents of major cities in the path of this system, the revived monsoon will bring both relief from the heat and potential civic challenges. In Kolkata, the forecast points towards thunderstorms and spells of heavy rain through Thursday. This increases the likelihood of traffic snarls and waterlogging in low-lying areas. Bhubaneswar and other coastal cities in Odisha are on the frontline and can expect the first bands of rain as the system organizes itself over the bay. Further inland, cities like Raipur and Ranchi should brace for wet weather as the week progresses. While Delhi-NCR is expected to see the monsoon retreat with drier conditions, eastern and central Indian cities are gearing up for a deluge. Peninsular India, however, is likely to continue experiencing subdued rainfall for the next week.
A Welcome Push for the Monsoon?
This late-season surge is crucial. The monsoon so far has been characterized by significant deficits in several regions, including the east, northeast, and the southern peninsula. The formation of one to three low-pressure systems in the Bay of Bengal during September is a typical pattern, and these systems are vital for driving rainfall during the final month of the monsoon season. This particular system is significant because it could help alleviate some of the rainfall deficit in central and eastern states, which is critical for standing crops and for replenishing reservoirs before the dry season begins. However, the benefits of the rain are often accompanied by risks. Forecasters have noted that the heavy downpours, especially in urban and northern regions, could lead to short-term or localized flooding.
