Here’s what to know about the deadly flooding, the colossal weather system that drove it in, and around Kerr County, Texas, and ongoing efforts to identify victims.

A July Fourth weekend deluge in Texas caused catastrophic flash flooding that has killed more than 80 people. Camp Mystic in Kerr County says Monday morning that it is “grieving the loss” of 27 campers and counselors as the search continues for victims of the disaster.

The death toll after flash flooding hit part of Texas has now reached 100. Karen Hua from CBS News gives a recap of the search efforts and questions as to whether those in the flood zone knew about the National Weather Service alerts.