Southern Africa Weather, Drought and Dam Levels April 2018

The table below indicates how dam levels have changed over the last four and 52 weeks.  Capacity      23.4.18     26.3.18     24.4.17 Dam million m3            %            %            % Sterkfontein        2 617            96            95… Continue reading Southern Africa Weather, Drought and Dam Levels April 2018

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El Niño and La Niña Forecast April 2018

The graph below, courtesy of the International Research Institute (IRI) for Climate and Society of Columbia University's Earth Institute provides a 36 year perspective on sea surface temperature (SST) anomalies which in turn are said to drive  El Niño and La Niña  phenomena. The former occur when there is a positive anomaly and the latter… Continue reading El Niño and La Niña Forecast April 2018

Climate Change Modelling in Southern Africa Part 1

In recent blogs I have speculated on changes in South Africa’s climate under the influence of global warming and more specifically whether this warming is causing a poleward shift of weather systems. The Western Cape has experienced a succession of drier than normal winters, apparently due to such a shift, no doubt temporary at this… Continue reading Climate Change Modelling in Southern Africa Part 1