Heat dome’s scorching temperatures in Texas expected to expand across US

Power use in the state reached a record high Tuesday and will continue to strain the grid as the heatwave moves north

Texas is trapped under a heat dome" that is expected to bring more record highs and strain the power grid. As the heatwave expands through parts of Kansas, Oklahoma and all the way across the Gulf coast, tens of millions are facing excessive heat warnings.

Houston, the largest city in Texas, hit a high of 100F (38C) today, and officials are expecting daily high temperatures in Austin to remain above 100F for the next several days.