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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 are in recession, closing the period under review at 129m3/s on 21st September 2020, while the flow recorded last year on the same date was 48m3/s.

From:
8 September 2020
To:
21 September 2020
DateFlow (m3/s) 2020Flow (m3/s) 2019
8/9/202015359
9/9/202015057
10/9/202014959
11/9/202014758
12/9/202014657
13/9/202014456
14/9/202014356
15/9/202014155
16/9/202013954
17/9/202013753
18/9/202013551
19/9/202013351
20/9/202013149
21/9/202012948
chavuma

Nana's Farm

The Zambezi River flows at Nana’s Farm, located some 33km upstream of Victoria Falls, are in recession, closing the period under review at 422 m3/s on 21st September 2020. The flow observed on the same date last year was 224m3/s.

From:
8 September 2020
To:
21 September 2020
DateFlow (m3/s) 2020Flow (m3/s) 2019
8/9/2020464246
9/9/2020463247
10/9/2020459247
11/9/2020453246
12/9/2020449245
13/9/2020446245
14/9/2020443243
15/9/2020439242
16/9/2020438239
17/9/2020437233
18/9/2020433231
19/9/2020430228
20/9/2020427227
21/9/2020422224
nana

Ngonye

Flows at Ngonye are in recession, closing the period under review at 406 m3/s on 21st September 2020, while last year’s flow on the same date was 195m3/s.

From:
8 September 2020
To:
21 September 2020
DateFlow (m3/s) 2020Flow (m3/s) 2019
8/9/2020440225
9/9/2020438221
10/9/2020433217
11/9/2020427216
12/9/2020426215
13/9/2020422214
14/9/2020418211
15/9/2020416209
16/9/2020414209
17/9/2020413203
18/9/2020412201
19/9/2020411199
20/9/2020408199
21/9/2020406195
ngonye

Victoria Falls/Big Tree

The Zambezi River flows at Victoria Falls are in recession, closing the period under review at 422 m3/s on 21st September 2020. The flow observed on the same date last year was 201m3/s.

From:
8 September 2020
To:
21 September 2020
DateFlow (m3/s) 2020Flow (m3/s) 2019
8/9/2020464248
9/9/2020463245
10/9/2020459241
11/9/2020453238
12/9/2020449234
13/9/2020446231
14/9/2020443227
15/9/2020439224
16/9/2020438220
17/9/2020437217
18/9/2020433214
19/9/2020430211
20/9/2020427204
21/9/2020422201
vic-falls