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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 have been decreasing and closed the week under review at 112 m3/s on 15th July 2019, while the flow observed last year on the same date was 281 m3/s. The current flows are trending those of 1995/96 which is so far the lowest record in 50 years.

From:
9 July 2019
To:
15 July 2019
Date Flow(m3/s)
09/07/2019120
10/07/2019119
11/07/2019117
12/07/2019114
13/07/2019114
14/07/2019113
15/07/2019112

Nana's Farm

Nana’s Farm Gauge Station is located about 33km upstream of Victoria Falls. The Zambezi River flows at this station are in recession, closing the week at 384m3/s on 15th July 2019. The flow observed on the same date last year was 1,379m3/s.

From:
9 July 2019
To:
15 July 2019
Date Flow(m3/s)
09/07/2019409
10/07/2019404
11/07/2019402
12/07/2019398
13/07/2019392
14/07/2019390
15/07/2019384

Ngonye

Flows at Ngonye have been decreasing during the week under review, closing the week at 364m3/s on 15th July 2019, while last year’s flow on the same date was 1,076m3/s.

From:
9 July 2019
To:
15 July 2019
Date Flow(m3/s)
09/07/2019388
10/07/2019385
11/07/2019384
12/07/2019375
13/07/2019374
14/07/2019369
15/07/2019364

Victoria Falls/Big Tree

Flows at Victoria Falls decreased during the week under review before closing at 598m3/s on 15th July 2019. Last year on the same date, the flow was 1,471m3/s.

From:
9 July 2019
To:
15 July 2019
Date Flow(m3/s)
09/07/2019650
10/07/2019636
11/07/2019630
12/07/2019623
13/07/2019610
14/07/2019604
15/07/2019598