More than 120,000 people remain without power in Texas, days after fierce thunderstorms and a series of tornadoes swept across the state.
At least eight people were killed in the storms, which also battered the nearby states of Louisiana and Mississippi late last week.
In Houston, the power cuts have left many without air conditioning during sweltering heat and humidity.
In some areas, it could be days or weeks until power is fully restored.
Hurricane-force winds were recorded during the 16 May combination of storms known as a derecho, blowing glass out of high-rise buildings and toppling trees, cranes and power lines. Nearly one million people were without power over the weekend.
At around 15:30 local time (21:30 BST) on Tuesday afternoon, about 127,000 were still without power, according to Poweroutage.us. Almost all of those, around 120,000 were in Harris County, which includes the major city of Houston.
At the same time, temperatures in the area were expected to rise to 91F (32C), with humidity levels of around 80% that would make it feel much hotter, and expected to hit 95F by Monday.
Alexis McCartney, a remote worker, still has no power. Working from home is “basically impossible”, she told the BBC.
“It’s been a huge, inconvenient experience, to say the least,” she said. “We’re in the prime of Texas summer…it’s easy to work up a sweat.”
Ms McCartney said she was worried that the power cuts could be a sign of things to come as the Houston area heads towards hurricane season, which runs from June to November.
“I am concerned with the power grid and how the infrastructure of this city can leave thousands of Houstonians without power for extended periods of time,” she added. “It feels like a slap in the face.”