Irrigation department officials said the increase was the result of delayed upstream runoff rather than fresh rainfall.
Rainfall between Sept 25 and 27 illustrates the magnitude of the event. Lakhimpur Kheri received 268.3 mm against a normal of 7.3 mm, Shahjahanpur 263.9 mm against 5.3 mm, Hardoi 147.2 mm against 4.1 mm, Sitapur 144.1 mm against 7.5 mm, and Pilibhit 119.9 mm against 8.6 mm. Lucknow itself recorded 180.5 mm during the three day spell, compared with a normal of 9.4 mm.
Officials said water released from the upper basin typically takes several hours, and at times nearly a day, to influence river levels in Lucknow.
Hydrologists said it is the cumulative rainfall across the entire basin, rather than rainfall over Lucknow alone, that determines the river’s behaviour in the city. That explains why the river continued to rise in the city even several days after rainfall had stopped. As runoff from Pilibhit, Shahjahanpur, Lakhimpur Kheri, Hardoi and Sitapur moved downstream over several days, it continuously fed the Gomti. Before entering Lucknow, the river also receives additional inflows from tributaries such as the Kathina, Sarayan, Gon, Behta and Kukrail, further increasing its discharge. You Can Also Check: Gold Rate in Lucknow | Silver Rate in Lucknow | Bank Holidays in Lucknow | Public Holidays in Lucknow | Lucknow AQI | Weather in Lucknow | Petrol Price in Lucknow | Diesel Price in Lucknow | CNG Price in Lucknow | LPG Price in Lucknow
irrigation department officials said the increase was the result of delayed upstream runoff rather than fresh rainfall Although the river continued to rise marginally in Lucknow on Wednesday morning. With upstream inflows now weakening, the Gomti is expected to stabilise before beginning a gradual recession later on Wednesday, provided there is no fresh spell of heavy rainfall across the catchment.
LUCKNOW: After keeping several low lying parts of Lucknow inundated for nearly two weeks, the Gomti river is expected to begin receding later on Wednesday as water levels at key upstream gauge stations have started falling, indicating that the flood wave generated by exceptionally heavy rainfall across the upper catchment has almost crossed the state capital.