UPDATE at 1:50 p.m.: Huntsville Utilities says "service has been restored to the substation, it is operating normally, and all customers should have power." If you're still experiencing an issue, call 256-535-4448 (256-53-LIGHT).
The utility company says crews are investigating the cause and what can be done to prevent its recurrence.
UPDATE: Huntsville Utilities provided the following update at noon:
"Huntsville Utilities Electric Operations crews and Electric Engineers continue to work at the Northwest distribution substation which has experienced a total power loss, leading to a power outage through much of northern Madison County.
Three attempts to restore service have been made, but in each instance, service was quickly interrupted again.
We understand the frustration our customers may feel at this situation, especially with virtual learning and so many people working from home due to COVID-19.
Our goal is to restore service as quickly and safely as possible, and our crews will continue to diligently work until restoration is complete and a precise cause is determined.
We appreciate your continued patience."
Thousands of customers are without power in Madison County, as of 10:30 a.m. Monday.
Huntsville Utilities says crews are responding to the outage in northern Madison County, the same area that was impacted by a distribution substation issue Sunday night.
The cause of the outage Monday morning is currently unknown. The utility company says crews are working to restore service as quickly as possible.
You can view the power outage map here.
Huntsville Utilities Electric Operations is responding to a power outage in northern Madison County. This is the same area that was impacted by a distribution substation issue last night. Crews are working to determine the cause and restore service as quickly as possible. pic.twitter.com/LIengtc403
— Huntsville Utilities (@HSVUtilities) August 24, 2020