HOUSTON, June 15 : Local organisers have closed the popular Fan Festival in Houston on Monday amid a flood warning that runs through to Wednesday, the day of the World Cup Group K game between Portugal and the Democratic Republic of Congo. The Houston Stadium has a roof and it is not expected that the weather will affect the fixture. The Fan Festival has been popular in Houston though and reached its 7,500 capacity on the opening two days of the tournament.      “Due to anticipated inclement