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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 with isolated rise in the flows due to localised rainfall activity on the catchment, before closing the period under review at 103m3/s on 19th October 2020, while the flow recorded last year on the same date was 43m3/s.

From:
6 October 2020
To:
19 October 2020
DateFlow (m3/s) 2020Flow (m3/s) 2019
6/10/202010539
7/10/202010339
8/10/202010239
9/10/202010739
10/10/202010840
11/10/202010740
12/10/202010640
13/10/202010742
14/10/202010543
15/10/202010644
16/10/202010743
17/10/202010542
18/10/202010543
19/10/202010343
chavuma

Nana's Farm

The Zambezi River flows at Nana’s Farm, located some 33km upstream of Victoria Falls continued decreasing with slight fluctuation due to local rainfall activity, closing the period under review at 325m3/s on 19th October 2020. The flow observed on the same date last year was 171m3/s.

From:
6 October 2020
To:
19 October 2020
DateFlow (m3/s) 2020Flow (m3/s) 2019
6/10/2020369197
7/10/2020365195
8/10/2020359195
9/10/2020359193
10/10/2020360190
11/10/2020357190
12/10/2020370183
13/10/2020359181
14/10/2020349183
15/10/2020343180
16/10/2020339178
17/10/2020334172
18/10/2020329170
19/10/2020325171
nana

Ngonye

Flows at Ngonye are still in recession, closing the period under review at 302 m3/s on 19th October 2020, while last year’s flow on the same date was 153m3/s.

From:
6 October 2020
To:
19 October 2020
DateFlow (m3/s) 2020Flow (m3/s) 2019
6/10/2020337167
7/10/2020330166
8/10/2020328160
9/10/2020327160
10/10/2020323157
11/10/2020317157
12/10/2020315159
13/10/2020313157
14/10/2020308158
15/10/2020304157
16/10/2020304156
17/10/2020303156
18/10/2020303153
19/10/2020302153
ngonye

Victoria Falls/Big Tree

The Zambezi River flows at Victoria Falls continued decreasing with slight fluctuation due to local rainfall activity, closing the period under review at 325m3/s on 19th October 2020. The flow observed on the same date last year was 127m3/s.

From:
6 October 2020
To:
19 October 2020
DateFlow (m3/s) 2020Flow (m3/s) 2019
6/10/2020369160
7/10/2020365157
8/10/2020359154
9/10/2020359152
10/10/2020360147
11/10/2020357147
12/10/2020370144
13/10/2020359142
14/10/2020349139
15/10/2020343137
16/10/2020339134
17/10/2020334132
18/10/2020329129
19/10/2020325127
vic-falls