Chhattisgarh faces extremely heavy rainfall, with several districts under flash-flood threat as authorities urge residents to remain vigilant.Odisha’s northern. According to the weather bulletin issued on September 1, the system is positioned over West Bengal and adjoining north coastal Odisha and is likely to move west-northwestwards during the next 24 hours.The system is accompanied by an upper-air cyclonic circulation, while the monsoon trough remains active.