The early warnings and alerts from the National Weather Service didn’t indicate a catastrophic flood was on its way.

TEXSAR, an Austin-based nonprofit first responder organization, has deployed swiftwater teams, boats, drones and K9s to help search for missing people. It hopes to raise $100,000 to maintain its operation. Donations can be made online.

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.