6o 



WEATHER FORECASTING. 



along the south coast they sometimes move over the land, when 

 the conditions are suitable they bring rain. 



For instance, should a secondary be seen to the north of 

 Cape St. Francis, wind at Port Elizabeth will likely be S.E. ; 

 as the low area passes to the north of that town wind 

 will go to the S.W. and very heavy rain will probably fall. 

 Such secondaries are the cause of most of the coastal floods. 



As an example the flood of the 16th November, 1908, ma}' 

 be cited ; at 8.30 on that morning an anticyclone was over the 



HICH 



Black dofe 

 show Snow 

 5terms. 



Blizzard or 31 ?! May, 1905. 



SHEWING 



Indian Ocean Low 



Th i all o/er. 

 N=N very heavy ram 

 OVer 3£ 



Popj Elizabeth Tlood - 16™ November, 1908. 



southern ocean; wind was S.E. 3, at Port Elizabeth; E. 3, at 

 Cape St. Francis; S.E. 4, between there and Knysna ; and W. 1, 

 at ( leorge and Oudtshoorn. At Dunbrody, to the N.W. of Port 

 Elizabeth, wind was S.W. 5; these directions showed the presence 



