In the monsoon season of 2019 Indian rivers have crossed Highest Flood Level (HFL) at around 37 Level Forecasting and Level Monitoring sites across the country. This account attempts basin wise details and description of HFL breached by the rivers.
Brahmaputra Basin (Assam)
In Brahmaputra basin 2 sites, 1 Aie NH Xing Level Monitoring site on River Aie in Barpeta district of Assam and Dhubri (Level Forecast) site on River Brahmaputra in Dhubri district of Assam narrowly crossed the HFL in July 2019.
Also River Barak at ANIPUR site in Karimganj district on May 24 and River Brahmaputra at Goalpara site in Goalpara district rose close to the HFL level on July 17, 2019. As per CWC (Central Water Commission) FF Website, Goalpara site has not crossed HFL since 1954.
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Central Water Commission (CWC) is the only agency doing flood forecasting in India. CWC’s Flood Forecasting (FF) is available on its website[I]. In this article we have given an overview of CWC’s flood forecasting and monitoring sites in East India. It includes state wise list of CWC’s Level Forecast, Inflow Forecast and level monitoring sites in East India. Similar report has been published for North India[II] and North East India[III] and we hope to publish reports covering other regions of India soon. East India includes five states: Bihar, Jharkhand, Chhatisgarh, Odisha and W Bengal.
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Central Water Commission is the only agency doing flood forecasting in India. As per CWC’s Flood Forecasting website[i] the Data Flow Map has information about 226 Flood Forecast Sites in the country comprising of 166 Level Forecast Sites and 60 Inflow Forecast Sites. It also monitors 700 Flood sites, information made available through List Based Exploration and Hydrograph View, but no flood forecasting is done for these sites.
In order to better understand the CWC’s flood monitoring and forecasting work, in this article, we have given an overview of CWC’s flood forecasting and monitoring sites in South India. It includes state wise list of CWC’s Level Forecast, Inflow Forecast and level monitoring sites in South India. Similar report has been published for North India[ii] and North East India[iii] and East India[iv].
Tamil Nadu There are 3 Level Forecasting, 48 Level Monitoring and 14 Inflow Forecasting sites in Tamil Nadu State. Out of total 65 sites, 19 Level Monitoring and 2 Inflow Forecasting sites are inactive. MWL information is given only for 1 Inflow Forecasting site out of 14. IRRUKKANKUDI, Sathanur and Gomukhi sites are repeated with incomplete information. Out of 48, HFL figure and date is not provided for 25 Level Monitoring sites.
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