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River Flows

The hydrometric network used for the control and day to day operations of the Kariba reservoir comprise of thirteen stations where water levels are monitored daily. Flow measurements are carried out at eight of these stations which include the Victoria Falls, one of the key stations on the Zambezi River. Coincidentally, the maximum flow recorded at Victoria Falls was during the early construction phase of Kariba Dam in March 1958 at 10,000 cubic metres per second.  The lowest flows recorded to date at Victoria Falls were during the 1995/96 season which had an annual mean flow of 390 cubic metres per second, whereas the Long Term Mean Annual flow at Victoria Falls is 1,100 cubic metres per second.

FLOWS AT SELECTED STATIONS:

Chavuma

Zambezi River flows at Chavuma are now in recession, closing the period under review at 248m3/s on 26th July 2021. The flow recorded last year on the same date was 266m3/s.

From:
13 July 2021
To:
26 July 2021
DateFlow (m3/s)(2020/21)Flow (m3/s)(2019/20)
13 Jul298318
14 Jul294315
15 Jul289312
16 Jul286308
17 Jul282305
18 Jul278301
19 Jul275297
20 Jul271293
21 Jul269288
22 Jul264283
23 Jul259279
24 Jul257274
25 Jul252270
26 Jul248266
chavuma

Nana's Farm

The Zambezi River flows at Nana’s Farm, located some 33km upstream of Victoria Falls have been decreasing, closing the period under review at 816m3/s on 26th July 2021. The flow observed on the same date last year was 888m3/s.

From:
13 July 2021
To:
26 July 2021
DateFlow (m3/s)(2020/21)Flow (m3/s)(2019/20)
13 Jul1,0921,179
14 Jul1,0601,155
15 Jul1,0371,126
16 Jul1,0271,099
17 Jul9991,077
18 Jul9751,055
19 Jul9541,034
20 Jul9361,011
21 Jul912989
22 Jul893967
23 Jul873947
24 Jul853926
25 Jul836907
26 Jul816888
nana

Ngonye

Flows at Ngonye are decreasing closing the period under review at 738m3/s as of 26th July 2021, while last year’s flow on the same date was 783m3/s.

From:
13 July 2021
To:
26 July 2021
DateFlow (m3/s)(2020/21)Flow (m3/s)(2019/20)
13 Jul923988
14 Jul906968
15 Jul885949
16 Jul873936
17 Jul863918
18 Jul847903
19 Jul833890
20 Jul817868
21 Jul804854
22 Jul786839
23 Jul777826
24 Jul757815
25 Jul749796
26 Jul738783
ngonye

Victoria Falls/Big Tree

The Zambezi River flows at Victoria Falls have been decreasing, closing the period under review at 816m3/s on 26th July 2021. The flow observed on the same date last year was 888m3/s.

From:
13 July 2021
To:
26 July 2021
DateFlow (m3/s)(2020/21)Flow (m3/s)(2019/20)
13 Jul1,0921,179
14 Jul1,0601,155
15 Jul1,0371,126
16 Jul1,0271,099
17 Jul9991,077
18 Jul9751,055
19 Jul9541,034
20 Jul9361,011
21 Jul912989
22 Jul893967
23 Jul873947
24 Jul853926
25 Jul836907
26 Jul816888
vic-falls