:Sources for this apaprent "failure"? The BBC News site seems to have plenty of coverage at the time, for example: 
 :*least nine killed in central Europe floods (18 May 2010) 
 :*Poland floods 'may yet get worse' (23 May 2010) 
 :*Polish floods could spread to Germany (24 May 2010) 
 :*Toll from Poland flooding rises (25 May 2010) 
 :I'm not sure how you can substantial a claim of "the failure of the BBC to cover this natural disaster," in light of such coverage clearly existing.