The Oct 2019 rainfall all over India was 109.7 mm, 44% above normal expected rainfall of 76 mm, following 53% above normal in Sept 2019. The rainfall this month has been unusual and has had some major impacts. One of the reasons has been that the SW monsoon withdrawal continued well into Oct 2019, when it almost always gets over by the end of Sept. There were also several cyclonic circulations and depressions mostly from Arabian sea. Continue reading “44% above normal rainfall in Oct 2019 creates hopes for Rabi, Disaster for Kharif crops at many places”
Guest blog by Sazzad Hussain
Late Kartik Pegu, grandfather of Bipin Pegu of Jiadhal Chariali village under Dhemaji Revenue Circle of Dhemaji district in northeast Assam prepared his own burial site during early 1970s on the bank of Jiadhal River. The site, a paddy field, has been owned by the Patir family of the village near the railway bridge over the river. Kartik Pegu was buried there when he died in 1976 and a tombstone was built in his memory. After that in 1985 Bilapson Pegu, Bipin’s father, too was buried on the same site and another tombstone was placed in his memory close to that of Kartik Pegu. Now Bipin Pegu (47), a college graduate and a local peasant with three children wishes him to be buried on the same plot of land when he dies. But on the evening of 16 September, 2019, his wishes for final rest close to his near and dear ones were shattered when Jiadhal River suddenly surged with overflowing water submerging the tombstones of Bipin’s immediate ancestors. He has never seen them being under water so far. Continue reading “The floods of Jiadhal River in Assam”
The 275 MW Kopili Dam Power House of NEEPCO (North Eastern Electric Power Corporation Limited, a Union Ministry of Power Underaking) in Assam suffered major disaster on Oct 7, 2019. The penstock pipe that takes water from the Umrangso dam to the hydropower house burst during early hours in Assam’s Dima Hasao (earlier called North Cachar Hill) district, and massive quantity of water erupted, a lot of it entered the power house, where four employees of NEEPCO are feared to have been trapped/ washed away[i]. A large portion of the Kopili Hydro Electric Plant was also inundated and a temporary bridge was also washed away[ii]. Some videos of the situation are also available.[iii] Continue reading “Major disaster at Kopili Dam of NEEPCO in Assam”
The first blog on just concluded South West Monsoon 2019, gave the national picture and broad picture of month wise, state wise, sub division wise and river wise rainfall. This blog provides some details of rainfall in districts of each of the 36 states and Union Territories (UTs) of India. Continue reading “Monsoon 2019: State wise rainfall”
Central Water Commission (CWC) monitors water level at several hundred sites in the country during monsoon every year. It publishes this information on its Flood Forecast (FF) website[I]. The website has three ways to get this information: Data Flow Map, List Based Exploration, and Hydrograph view. The Hydrograph view provides information for past 72 hours, supposed to be updated every hour. This is in addition to the list of current forecasts.
The CWC’s FF website had in 2018 monsoon, 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. As reported below, the number of sites have gone up during 2019 monsoon, which is welcome. However, most of the new sites, along with some old ones do not have key information.
Manipur DFO bans mining in Thoubal river Showing serious concerns to the degradation of the Thoubal River as well as its environment, a team of state police and Forest department officials led by District Forest Officer (DFO) RK Amarjit paid surprise visit at Moirang Purel and Itham area under Andro Assembly constituency where sand mining was underway at mass scale. During the inspection visit the govt official saw illegal excavation of soil from nearby hills of the area and dump it at Thoubal River for extraction of red sand.
As the mining of sand not only endangered the forest area of the surroundings but also degrades the condition of the Thoubal River, the DFO put immediate ban on the sand mining as well as excavation at hills of the surroundings. He also ordered ban on transportation of red sand in Thoubal and Kakching district. http://kanglaonline.com/2017/11/dfo-thoubal-swings-into-action-bans-sand-mining-at-thoubal-river/ (21 Nov. 2017)
ASSAM: NEEPCO a repeat offender? On July 27, 2018 sudden release of water from NEEPCO’s Doyang Hydropower Electric Project (HEP), located in Wokha district, Nagaland led to flood disaster, submerging about 36 villages in Golaghat a district in Upper Assam. According to Rony Rajkumar, project officer of the Golaghat district disaster management authority, around 5,575 people were affected by the deluge which damaged 887.9 ha of crop.
Earlier, on July 11, 2018, reviewing the severe flood situation Lakhimpur Assam, the Chief Minister (CM) Sarbananda Sonowal strongly warned the state-owned power utility NEEPCO not to release water from its Ranganadi dam without warning like previous years.
Even as the rainfall during South West Monsoon of India during June Sept 2018 was 9.4% below normal, a number of HFL (Highest Flood Level) crossing flood events were recorded on CWC’s (Central Water Commission) Flood Forecasting (FF) website[i]. Since CWC’s FF site does not provide archived information or comprehensive list of such events, we are here putting together a list of such events that we had noted during the SW monsoon, for future records and also understanding trends of high floods. Continue reading “HFL crossing flood events during India SW Monsoon 2018”
2018 becomes fifth year in a row when India’s south west monsoon has been below normal. In the beginning of monsoon season, Indian Meteorological Department (IMD) has forecasted rains to be normal with rainfall equal to 97 percent of the long term average. However at the end of the season the overall rainfall turned out to be 91 percent, with deficit of 9 percent at national level. However, as we see in this overview, the situation as move from national to local figures, is much different, mostly much worse.
According to IMD’s State Rainfall Map (cumulative) dated 30 Sept. 2018, the country received 804.0 mm rains against 887.5 mm of normal average. Thus the south west monsoon 2018 had 9.4 percent below normal rainfall.
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, SANDRP has published report of CWC’s Level Forecast, Inflow Forecast and level monitoring sites in 5 zones of North India[ii], North East India[iii], East India[iv], South India[v] and West India[vi]. Through this report, we have presented all the data at one place with links to separate zone wise reports with detailed description.