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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 steadily increased and closed the period under review at 542m3/s on 20th January 2020, while the flow observed last year on the same date was 325m3/s.

From:
7 January 2020
To:
20 January 2020
DateFlow (m3/s) (2020)Flow (m3/s) (2019)
7/1/2020278200
8/1/2020281211
9/1/2020289212
10/1/2020297219
11/1/2020313228
12/1/2020327235
13/1/2020349247
14/1/2020379256
15/1/2020404267
16/1/2020441273
17/1/2020459279
18/1/2020480287
19/1/2020513299
20/1/2020542325
Chavuma

Nana's Farm

Nana’s Farm Gauge Station is located about 33km upstream of Victoria Falls with practically no significant flow contribution between the two stations.

The Zambezi River flows at this station have been increasing due to rainfall activity on the catchment, closing the period under review at 536m3/s on 20th January 2020. The flow observed on the same date last year was 476m3/s.

From:
7 January 2020
To:
20 January 2020
DateFlow (m3/s) (2020)Flow (m3/s) (2019)
7/1/2020454362
8/1/2020457374
9/1/2020461383
10/1/2020458391
11/1/2020453398
12/1/2020461404
13/1/2020477415
14/1/2020492410
15/1/2020508420
16/1/2020502426
17/1/2020518437
18/1/2020526453
19/1/2020532463
20/1/2020536476
Nana’s Farm

Ngonye

Flows at Ngonye increased due to sporadic rainfall activities being recorded on the catchment, closing the period under review at 613m3/s on 20th January 2020, while last year’s flow on the same date was lower at 525m3/s.

From:
7 January 2020
To:
20 January 2020
DateFlow (m3/s) (2020)Flow (m3/s) (2019)
7/1/2020494413
8/1/2020496418
9/1/2020503422
10/1/2020509433
11/1/2020555438
12/1/2020548447
13/1/2020548467
14/1/2020557488
15/1/2020597487
16/1/2020600492
17/1/2020592507
18/1/2020594507
19/1/2020600521
20/1/2020613525
Ngonye

Victoria Falls/Big Tree

Flows at Victoria Falls have continued to increase steadily during the period under review before closing at 524m3/s on 20th January 2020. Last year on the same date, the flow was 501m3/s.

From:
7 January 2020
To:
20 January 2020
DateFlow (m3/s) (2020)Flow (m3/s) (2019)
7/1/2020396377
8/1/2020406386
9/1/2020416401
10/1/2020426406
11/1/2020431436
12/1/2020436426
13/1/2020447421
14/1/2020457416
15/1/2020468426
16/1/2020479436
17/1/2020490452
18/1/2020501479
19/1/2020513490
20/1/2020524501
Victoria Falls/Big Tree