Ministry of Jal Shakti

Summary of Flood Situation as per Rainfall Forecast

Posted On: 18 AUG 2020 6:56PM by PIB Delhi

Based on the rainfall forecast, following advisories are issued by CWC for various States-

Gujarat, Maharashtra & Goa

Heavy to very Heavy rainfall with isolated extremely heavy rainfall is likely over Ghat areas of Madhya Maharashtra and Gujarat State. There is rise in Water Levels in the basins of Lower Mahi, Lower Narmada, Lower Tapi and Damanganga. Rivers Narmada, Tapi, Damanganga are rising rapidly and further rise is expected due to the forecasted heavy rainfall for next 4-5 days. Madhuban Dam in Valsad District at present has storage of 67% and is likely to get heavy inflows due to the forecasted rainfall. Close watch is to be maintained and releases if any has to be done, it should be with due care and after informing all downstream districts including Union Territories of Daman.

Due to forecast of very heavy rain in their catchment, there is likelihood of sudden rise in inflows which may have to be regulated properly following the rule curves and Standard Operating Procedures (SOP) after informing all downstream Districts well in advance. Many of the small dams in Saurashtra & Kutch are already near their FRL and as extremely heavy rain has also been forecasted for today close watch is to be maintained for proper reservoir operation. Due to forecasted heavy rainfall for 4-5 days in Konkan & Goa and in Hill ranges of Western Ghats in Maharashtra, there is probability of sudden rise in water levels in West Flowing Rivers between Tapi and Tadri in States of Maharashtra, Goa and UT of Dadra & Nagar Haveli and Daman & Diu, such as rivers Damanganga, Ulhas, Savithri, Kal, etc. Maximum vigil is to be maintained along the low lying areas of these rivers which are near to Railway lines and Highways during the above period.

Odisha, Chhattisgarh, Andhra Pradesh & Telangana

Heavy to very heavy rainfall is likely over Odisha and Chhattisgarh during next 4-5. Due to ongoing extremely heavy rainfall, River Godavari is also getting good flows due to rain in Chhattisgarh, Maharashtra and Telangana. River Godavari at Dummagudem&Bhadrachalam in BhadradriKothagudem District in Telangana is flowing above Danger Level. Polavaram project on River Godavari in Andhra Pradesh is likely to get around 53000 cumec till 0830 hours tomorrow and Laxmi Barrage on River Godavari is likely to get inflows of around 16500 cumec till today night. River Godavari at Kunavaram and Dowlaiswaram Barrage (Sir Arthur Cotton Barrage) in East Godavari District of Andhra Pradesh is flowing in Severe Flood Situation. River Mahanadi is likely to get inflow of about 10,100 cumec in Hirakud Dam and the dam is likely to continue getting heavy inflows due heavy rainfall forecasted in Chhattisgarh catchment.

Karnataka

Most of the dams in Krishna Basin are also having storage between 86% to 98%. Hidkal Dam to 98% of its full capacity and is releasing 28,656 cusec.  due to the very heavy rainfall forecasted in Madhya Maharashtra Maharashtra, Hidkal and Malaprabha are also getting heavy inflows. River Krishna at Gokak Falls in Belagavi District of Karnataka is flowing above Danger Level. River Krishna at Huvinahedgi in Raichur District is rising due to releases from Narayanpur Dam. Due to river flows from upstream areas of river Krishna, Almatti Dam and Narayanpur Dam are getting heavy inflows and since these dams are filled around 79% to 89% of the capacity, both the dams are releasing the excess flow continuous. There is forecast of heavy to very heavy rainfall in Madhya Maharashtra for next 4 rise in water levels in Upper Krishna Basin in the upstream of Almatti Dam.

Rajasthan & Madhya Pradesh

Due to forecast of heavy to very heavy rainfall in East Rajasthan and West Madhya Pradesh for next 3 likelihood of rise in Water Levels in rivers such as Chambal, Mahi, Sabarmati, Kalisindh, Banas (both East and West Flowing), etc. Most of the dams in these rivers are havi to monitor the situation very closely. River Narmada at Mandla in Mandla District of Madhya Pradesh is flowing close to Danger Level. Rani AvantibaiSagar (Bargi) Dam on River Narmada is likel heavy rainfall in Jabalpur District. Releases if any has to be done, it should be after advance information to all concerned downstream districts and lower riparian States. Inflows have increased in Panchana Dam. Inflow Forecast has been issued for Parwan Pickup Weir.

Himachal Pradesh, Punjab, Haryana,Uttrakhand and Uttar Pradesh

Heavy to very heavy rainfall with extremely heavy rainfall is likely over Uttarakhand on of rise in Water Levels in rivers such as Sutlej, Ravi, Beas, Ghaggar, Yamuna, Bhagirathi, Alaknanda, Ganga, Ramganga, Sarda, Sarju and Ghaghra. There is likelihood of flash floods in some of the hill districts in the cloud burst. Necessary precautions have to be taken for possible landslides and blockages of river flows due to landslides in high ranges of these states. It is advised that close watch has to be maintained for increased inflow from any of these reservoirs may be done as per rule curve and standard operating procedure.

Bihar, Jharkhand and Gangetic West Bengal

Many of the rivers in Bihar continue to flow in Severe to Above Normal Flood situation with falling trend. The situation will continue for another 3-4 days.

North Eastern States

Heavy to very heavy rain has been forecasted for the next 3 continuing in Brahmaputra and its tributaries in Jorhat, Sonitpur, Golaghat, Sibsagar and Dhubri Districts. Due to forecasted rainfall, there is likelihood of increase in flood situation in other districts also.

 

APS/SG/MG                                                  ****************************



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