Update 4:30 p.m.
The water main that broke outside Atholton High has been fixed, according to Mark Miller, a county spokesperson.
Update - 2:10 p.m.
The Howard County Department of Public works plans to have the water main that broke near Atholton High School back in service by 6 p.m., according to Mark Miller, director of public information for Howard County.
Miller said at this time they are anticipating Atholton High will have school tomorrow. He said the main that broke is a 12-inch water main in front of the school and that the concern was that the water was begninning to undermine the road.
"There is no water damage to the school, that we are aware of," said Miller.
Original story - 10 a.m.
Atholton High School was closed this morning due to a water main break that sent students home at approximately 9:45 a.m., according to a news release.
All afterschool activities have been canceled.
On twitter, students reacted with happiness.