It is shaping up to be a long and cold night for the thousands of Calgarians still without power in their homes.

About 5,000 customers remain without electricity with sporadic outages being blamed on snow melting off branches and then those branches popping up hitting the power lines once again and more overnight outages could occur.

Road crews are also busy fixing the dozens of traffic lights and clearing branches.

Residents are reminded not to put the wood in their blue and black bins.

Enmax CEO Gianna Manes said crews will be working throughout the night and into Thursday, but it is too early to give an estimate on when power will be restored.

“The best thing that we can continue to recommend to people is if you can comfortably stay in your home, make sure you have flashlights and batteries, make sure you have food and water,” said Manes. “If you have the ability to go somewhere else, we are recommending that you do that and again check on people that maybe without power and may need some place to go.”

With an estimate of 2,000 trees falling on Calgary roads and thousands more damaged, Calgary Emergency Management Agency Director Ken Uzeloc said it is also unclear when the cleanup will be finished.

Special ‘Jumbo’ crews including Canada Task Force 2 members are out doing the job.

Calgarians are being asked to report downed trees to 311. If there are sparks, people are asked to call 911.

Mayor Naheed Nenshi said it is still too early to estimate the damage from the storm, but said millions is a good guess.