NIHSA FLOOD & DROUGHT MONITOR December 2020

1.0    BLACK FLOOD HAS ARRIVED NIGERIA

 The River Niger Black Flood from Guinea has arrived Nigeria. It was recorded at the NIHSA’s hydrological gauge station at Jiderebode upstream Kainji dam where it has started gradually increasing from the 16th December with a maximum discharge of 1,806 m3/s recorded on 31st December 2020 (Figure1).

River Niger has two periods of flood flows known as the White Flood and the Black Flood. The White flood occurs during the rainy season while the Black Flood which originates from Guinea, occurs during the dry season from December to May of the following year with a peak flow expected in either January or February. The Black flood is the major water sources to Kainji and Jebba dams that also protect the downstream areas of the country against flood disasters.

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