With hundreds confirmed dead or still missing, questions remain about the local response to flood warnings. Meanwhile, lawmakers will weigh measures to mitigate future disasters.

Severe thunderstorms will head east by Saturday, impacting eastern Michigan and parts of northern Indiana. One to two inches of rain is possible as the system tracks east, but some areas could see isolated amounts of three to five inches through the weekend.

Kerr County repeatedly failed to secure a warning system, even as local officials remained aware of the risks and as billions of dollars were available for similar projects.

The deadly Texas floods have brought the state's approach to land approvals, especially in flood-prone areas, under more scrutiny.

In what experts call "Flash Flood Alley," the terrain reacts quickly to rainfall steep slopes, rocky ground, and narrow riverbeds leave little time for warning.

CNN’s Bill Weir reports from the ruins of Camp Mystic in Texas, where deadly floods have claimed at least 27 lives. Weir explains how climate change is making flooding more extreme and common.

More than 100 people are dead and 150 known to be missing in Texas Wednesday from flooding but questions remain about how the effects of the deadly disaster could have been mitigated.