Tuesday morning, Central High School in Prince George's County welcomed students back, after it was forced to close because of a storm-related power outage.
But the power went out again.
Students are being sent home while Pepco works to get the lights back on.
On Monday evening, Prince George's County said they were still undecided as to whether the school would be open, but on Tuesday morning, authorities said class would be back in session.
Check back with News4 for more updates as they become available.