The flooding is considered the worst natural disaster Brazil has ever experienced.
http://www.bbc.co.uk/news/world-latin-america-12263166
Australia has just experienced the same. It's worst natural disaster. Haiti experienced the same, its worst natural disaster. And how about Indonesia and Thailand. The worst natural disasters not long ago with the tsunami. And, how about 9/11 in NY. The worst disaster to hit the US mainland, not natural, but still, a disaster the magnitude not ever seen before in the US.
Here's a prediction for those reading. We shall see much worse in the days that follow. San Francisco is going to experience a disaster in that their cup is full. My thoughts are of a very large earthquake. These are judgments that are coming upon the world just prior to the coming of Jesus. Satan is at work and God allows. He is withdrawing His Spirit from those who have rejected His love. His hand of protection is being removed from those cities that hate Him.
May 21 will not be the end, but it is coming soon enough. Harold Camping is a false prophet, but he has one thing right, the end is coming soon! And before the end comes, there will be natural disasters in the large cities of the world. San Francisco is on the top of the list.