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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 continued to recede and closed the week under review at 42m3/s on 30th September 2019, while the flow observed last year on the same date was 90m3/s. The current flows are trending those of 1995/96 which is so far the lowest record in 50 years.

From:
24 September 2019
To:
30 September 2019
Date Flow(m3/s)
24/09/201947
25/09/201946
26/09/201944
27/09/201943
28/09/201943
29/09/201942
30/09/201942

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 under review at 210m3/s on 30th September 2019. The flow observed on the same date last year was 391m3/s.

From:
24 September 2019
To:
30 September 2019
Date Flow(m3/s)
24/09/2019222
25/09/2019220
26/09/2019216
27/09/2019210
28/09/2019210
29/09/2019210
30/09/2019210

Ngonye

Flows at Ngonye have been decreasing during the week under review, closing the week at 177m3/s on 30th September 2019, while last year’s flow on the same date was 326m3/s.

 

From:
24 September 2019
To:
30 September 2019
Date Flow(m3/s)
24/09/2019190
25/09/2019188
26/09/2019184
27/09/2019182
28/09/2019178
29/09/2019177
30/09/2019177

Victoria Falls/Big Tree

Flows at Victoria Falls decreased during the week under review before closing at 174m3/s on 30th September 2019. Last year on the same date, the flow was 340m3/s.

From:
24 September 2019
To:
30 September 2019
Date Flow(m3/s)
24/09/20192192
25/09/2019189
26/09/2019186
27/09/2019183
28/09/2019180
29/09/2019177
30/09/2019174