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River Flows

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

Flows on the Zambezi River at Chavuma have continued increasing with fluctuations in the flows being observed during the week. The flow closed the week under review at 4,842m3/s on 23rd April 2018, while the flow observed last year on the same date was 929m3/s.

From:

17 April 2018

To:

23 April 2018

From:
17 April 2018
To:
23 April 2018
DateFlow(m3/s)
17/04/20184825
18/04/20184849
19/04/20184842
20/04/20184877
21/04/20184909
22/04/20184916
23/04/20184842

Nana's Farm

This station is located about 33km upstream of Victoria Falls. Since there is no major tributary between this site and the falls, flows measured at this station can be considered as flows passing over the falls.

Flows on the Zambezi River at Nana’s Farm have been increasing steadily during the week under review, closing at 3,855m3/s on 23rd April 2018, while the flow observed last year on the same date was 3,400m3/s.

From:

17 April 2018

To:

23 April 2018

From:
17 April 2018
To:
23 April 2018
DateFlow(m3/s)
17/04/20183664
18/04/20183697
19/04/20183738
20/04/20183775
21/04/20183806
22/04/20183834
23/04/20183855

Victoria Falls/Big Tree

Flows at Victoria Falls are have been increasing steadily during the week under review. The end of the week flow was 3,954m3/s on 23rd April 2018. Last year on the same date, the flow was 3,468m3/s.  

From:

17 April 2018

To:

23 April 2018

From:
17 April 2018
To:
23 April 2018
DateFlow(m3/s)
17/04/20183762
18/04/20183793
19/04/20183825
20/04/20183857
21/04/20183857
22/04/20183906
23/04/20183954

Ngonye

Flows on the Zambezi River at Ngonye have been increasing steadily with flows closing the week under review at 4144 m3/s as at 23rd April 2018, while last year’s flow on the same date was 2919m3/s.

From:

17 April 2018

To:

23 April 2018

From:
17 April 2018
To:
23 April 2018
DateFlow(m3/s)
17/04/20183929
18/04/20183940
19/04/20183964
20/04/20184004
21/04/20184052
22/04/20184095
23/04/20184144