According to local NBC-affiliated TV station in Colorado, Arapahoe High School has 2,229 students.
It is in Centennial, a surburb of Denver.
More top news
Showers could be heavy for a time but most should still enjoy sunny spells.
The chief executive of EDF has urged the government to go ahead with the new nuclear plant.
An Italian prosecutor investigating the quake aftermath believes cheap renovations may be partly to blame for the high death toll.