Update 3 p.m. -- Power has been restored in all areas.
Update 8:36 a.m. -- Duke Energy has restored power to customers in Graham and Winston-Salem.
About 200 homes in the Raven Ridge community in Greensboro are still without power.
People in the neighborhood said they woke up without power around 5 a.m.
One man said he went to a hardware store to buy a space heater, but they were sold out.
Duke Energy said the source the outage has been linked to the Tagus Drive area. Power along Tagus Drive is now back on.
Duke Energy anticipates power will be completely restored by 11:30 a.m.
GREENSBORO, N.C. -- Duke Energy reported several power outages during Thursday morning's dangerously cold temperatures in Graham, Greensboro and Winston-Salem.
The largest outage is in Graham. More than 2,600 customers there are without power just south of Interstate 40 along Main Street and Harden Street
Duke Energy said power should be restored around 9 a.m. today.
So far, more than 200 outages have been reported off of Bryan Boulevard in Greensboro. Power should be restored by 10 a.m.
In Winston-Salem, about 300 customers south of Wake Forest Baptist Medical Center are without power.
Crews should be able to restore power there by 11 a.m.
To report an outage visit Duke Energy's website.
The cause of these outages is still unknown.
— Michael Spears (@MichaelKIRO7) February 19, 2015