Thousands of customers are without power in the Denver metro area in wake of an October snowstorm that snapped tree branches across the city.

Mark Stutz, a spokesperson for Xcel Energy, says about 98,000 outages were reported as of 2:45 p.m. on Monday. He emphasized that almost half those outages were very short while 54,210 were sustained outages that lasted longer than five minutes.

That number grew from the reported 31,000 customers that were in the dark at 10:30 a.m.

20,400 people are still without power in the Denver metro and about 5,000 are without power around Boulder. Those areas are where most outages were reported, Stutz said.

Most should have power restored by tonight but several hundred could go without lights into Tuesday morning.

Xcel called in crews overnight ahead of the storm, but Stutz says they didn’t see many outages until around 7:30 a.m.

Repairs are underway.

Stutz says people who are brushing off snow-covered tree branches Monday should look carefully for overhead lines.

A power outage canceled class at Bradley International School in southeast Denver Monday.