Flooding is not uncommon in Nigeria and last year was
particularly severe, affecteding 500,000 people [EPA]  Flooding
in the Nigerian city of Ibadan has claimed the lives of 98
people so far, and more victims are still being discovered.
Southern parts of Nigeria have seen torrential rains this year.
In Ibadan, 120km north of Lagos, yet another thunderstorm hit
over the weekend and the excessive water caused a dam to
overflow. This triggered a torrent of water, which smashed
through buildings, bridges and anything else in its path.
Thousands have found themselves homeless and camps have been set
up to provide emergency shelter for those in need. Acres of
farmland have also been submerged.  Although flooding is fairly
common in Nigeria, it unusual for floods to hit in August, which
is normally one of the drier months in Ibadan. August lies
sandwiched between the rainy seasons that affect the area.  The
rains in the equatorial region are set off by the sun's heating,
but of course the position of the sun depen