The rainfall in August 2017 distributed quite unevenly in time and across the territory of river basins, and thus produced a local and short-term effect. For example, in the river basins of the south-eastern foothills the amount of precipitation was within the monthly norm; and in the upper reaches of the basins Chornaya and Salgir it did not exceed 20% of the norm. In the mountains, the precipitation in the past month did not reach the norm either: 78% of the norm fell on Ai-Petri, 59% on the Angara Pass, and 96% in Karabi-Yaila. The corresponding data was provided in the report of the federal Government agency "Crimean Administration for Hydrometeorology and Environmental Monitoring".
Heavy rains on August 18 in the basins of the rivers Taraktash and Otuz resulted in disastrous floods, which were even heavier due to anthropogenic activities, namely, the water overflow from channel ponds, littered concrete tray channels, technically unjustified change of the streambed of the Kiziltashsky stream. As a result, the water level in these rivers on August 18 increased by 227 - 260 centimeters, which led to flooding of individual settlements.
However, in general, the inflow of water into the reservoirs of the Crimea in the riverbeds has decreased significantly over the month and amounted to: 0.32 million cubic meters in Chernorechensky, 1.335 million cubic meters in Belogorsk, 2.3 million cubic meters in Simferopol, 0,2 cubic meters in Shastlive.
To date, the total volume of water in the reservoirs of natural runoff is 150.25 million cubic meters, with the occupancy rate of 59%.
Reference: Crimea has 23 reservoirs with a total volume of 399.47 million cubic meters, of which natural water storage reservoirs comprise 249.97 million cubic meters.