India

IMD Issues Alerts as Heavy Rains and Floods Lash 18 Indian States

A powerful low-pressure system over the Bay of Bengal has triggered widespread heavy rainfall across 18 Indian states. The India Meteorological Department (IMD) issued alerts for September 12 warning of thunderstorms, lightning, and gusty winds. Bihar is currently the worst-hit state, with over 47 lakh residents affected by embankment breaches and rising river levels. Significant disruptions to road and rail transport are expected in Odisha, Maharashtra, and Central India.

Deepak Gupta

Deepak Gupta

Sep 12, 2026

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This article was curated with AI assistance and published by the MBN News Desk.

IMD Issues Alerts as Heavy Rains and Floods Lash 18 Indian States
AI Generated ImageSource: MBN News Desk

Key Takeaways

  • IMD issues heavy rain alerts for 18 states on Sept 12
  • Over 47 lakh people affected by Bihar floods this week

The India Meteorological Department (IMD) has issued a series of high-level weather alerts for 18 states across the country. This severe weather warning comes as a low-pressure area over the Bay of Bengal has intensified, drawing significant moisture and strengthening the monsoon current. Regions including Odisha, Madhya Pradesh, Maharashtra, and several Northeast states are expected to witness extremely heavy downpours, accompanied by thunderstorms and lightning. The IMD has advised citizens to avoid unnecessary travel as the risk of flash floods and landslides increases.

In Bihar, the situation has already reached a critical stage. State authorities report that over 47 lakh people have been severely impacted by the monsoon fury across 15 districts. The crisis was exacerbated by multiple embankment breaches, which allowed river waters to inundate hundreds of villages. Relief operations are currently underway, with the National Disaster Response Force (NDRF) and state agencies working to evacuate stranded residents. The state government has set up hundreds of relief camps, but the continuous rain is hampering the distribution of essential supplies.

  • 15 districts inundated — Bihar faces one of its worst flood seasons in recent years
  • Bay of Bengal system — A low-pressure trough is the primary driver of the current rainfall spike
  • Transport disruptions — Major highways and rail routes in Central India face potential closures

The IMD forecast indicates that Odisha and Chhattisgarh will face widespread rain with isolated spells of very heavy precipitation. These states are particularly vulnerable to urban flooding and crop damage. In Maharashtra, the Konkan region and parts of Vidarbha are on high alert. Local administrations in Mumbai and Pune have been put on standby to deal with potential waterlogging. The Meteorological Department noted that gusty winds could cause damage to temporary structures and uproot trees in coastal areas.

Further south, Andhra Pradesh and Telangana are also bracing for the impact of the intensifying monsoon. The Godavari and Krishna rivers are being monitored closely as water levels approach the danger mark. Farmers in these regions, while initially welcoming the rain, are now concerned about the potential for waterlogging in cotton and paddy fields. The State Disaster Management Authorities have issued advisories to fishermen, warning them not to venture into the sea due to rough conditions and high wave heights.

The Himalayan regions, including Uttarakhand and Himachal Pradesh, are facing a different set of challenges. The IMD warned of potential cloudbursts and landslides in these hilly terrains. Small streams and rivulets are expected to swell rapidly, posing a threat to trekkers and pilgrims. Local authorities have restricted movement on certain high-altitude roads as a precautionary measure. The Border Roads Organization (BRO) has deployed heavy machinery at strategic points to clear debris and ensure that essential connectivity is not completely severed.

In the Northeast, states like Assam and Meghalaya continue to battle persistent rainfall. The Brahmaputra river is flowing above the danger level in several locations, adding to the woes of a region already prone to annual flooding. The IMD has predicted that the current weather pattern will persist for at least the next 48 to 72 hours. This prolonged exposure to heavy rain is likely to saturate the soil further, increasing the probability of large-scale landslides in the Garo and Khasi hills.

Urban centers are not immune to the chaos. Delhi and the National Capital Region (NCR) are expected to see moderate to heavy showers, which could lead to significant traffic snarls during peak hours. The Delhi Traffic Police has already issued a list of vulnerable spots prone to waterlogging.

Source: MBN News Desk
#IMD Alert#Bihar Floods#Monsoon 2026#Heavy Rainfall#Odisha Weather#Maharashtra Rain#Disaster Management#India Weather

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