1. New dangers are emerging in the aftermath of Harvey, as floodwaters recede and the dwindling storm moves through Louisiana and into Mississippi. Forecasters say it should end on Saturday.

Explosions were reported overnight at a damaged chemical plant near Houston, a hub for chemical and petrochemical plants. More blasts are feared. And much of the city is still covered in a toxic stew of chemicals, sewage, debris and waste.

More than 30,000 people remain in shelters like the Houston convention center, above. More details of what people suffered are becoming clear, like the wrenching tale of the 3-year-old found clinging to her mother’s body.