? Houston officials rescued 2,000 people, with 185 critical requests still pending.
? The storm will force an estimated 30,000 people from their homes.
? A federal emergency has been declared in Louisiana.
? As much as 50 inches of rain could fall in some areas.
What Harvey?s damage looks like from the sky
As rising water continues to devastate Houston, dramatic images are appearing online ? including aerial footage captured by drones.
No city took in more Katrina evacuees than Houston, and tens of thousands of them are still living there, enduring disaster for the second time.