Over 40,000 Oncor customers are without power across Collin, Dallas, Denton, Tarrant and Wise counties, according to the company’s outage map. The company is reporting over 943 power outages across the region. 

Dallas County has the highest number of affected customers, with nearly 30,000 reporting power issues as of 8:30 a.m. Denton County is also having significant outages, with nearly 10,000 people impacted, according to Oncor’s outage map. 

Oncor did not immediately respond to a request for comment Friday morning. 

Earlier this morning, the National Weather Service issued a flash flood warning, instructing residents to stay off the roads. The warning is expected to stay in place until 10:45 a.m. 

This is a developing story and will be updated.