KERRVILLE, Texas — Shock has turned into grief across Texas where at least 120 people died from flash floods and more were missing as the search for victims moved methodically along endless miles of rivers and rubble Thursday.

Sisters Blair Harber, 13, and Brooke Harber, 11, were killed, along with their grandparents, when surging floodwaters ripped through the community. Their parents were staying in a different home at Casa Bonita and survived, according to the family's GoFundMe.

More than 111 people have died across six counties after flash flooding from heavy rain began affecting the state last week.

Flash floods surged through in the middle of the night, but many local officials appeared unaware of the unfolding catastrophe, initially leaving people near the river on their own.

Viral posts promoted false claims that cloud seeding, a form of weather modification, played a role in the devastation. Meteorologists explain it doesn't work that way.

Over the last decade, an array of local and state agencies have missed opportunities to fund a flood warning system intended to avert the type of disaster that swept away dozens of youth campers and others in Kerr County,

Kerr County officials say they are still focused mainly on the search for survivors with hundreds still missing and weren't yet examining how the emergency response unfolded.