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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 during the week under review, closing at 669m3/s on 8th April 2019, while the flow observed last year on the same date was 3,634m3/s and was still rising at this time. The current flows are trending those of 1995/96 which is so far the lowest record in 50 years.

From:
2 April 2019
To:
8 April 2019
Date Flow(m3/s)
02/04/2019728
03/04/2019721
04/04/2019709
05/04/2019704
06/04/2019695
07/04/2019682
08/04/2019669
chavuma

Nana's Farm

Nana’s Farm Gauge Station is located about 33km upstream of Victoria Falls. The Zambezi River flows at this station increased steadily during the period under review, closing the week at 911m3/s on 8th April 2019. The flow observed on the same date last year was 3,478m3/s.

From:
2 April 2019
To:
8 April 2019
Date Flow(m3/s)
02/04/2019877
03/04/2019881
04/04/2019888
05/04/2019893
06/04/2019896
07/04/2019907
08/04/2019911
nana

Ngonye

Flows at Ngonye have been increasing steadily during the week under review, closing the week at 1,083 m3/s on 8th April 2019, while last year’s flow on the same date was 3,700m3/s.

From:
2 April 2019
To:
8 April 2019
Date Flow(m3/s)
02/04/20191,038
03/04/20191,043
04/04/20191,047
05/04/20191,054
06/04/20191,064
07/04/20191,071
08/04/20191,083
ngonye

Victoria Falls/Big Tree

Flows at Victoria Falls increased steadily during the week under review before closing at 888m3/s on 8th April 2019. Last year on the same date, the flow was 3,529m3/s.  

From:
2 April 2019
To:
8 April 2019
Date Flow(m3/s)
02/04/2019831
03/04/2019839
04/04/2019847
05/04/2019855
06/04/2019863
07/04/2019871
08/04/2019888
Victoria Falls/Big Tree