A crisis communication expert says everyday notifications are weakening the impact of life-saving emergency alerts.

Almost 100 people remain unaccounted for in the aftermath of flooding that devastated central Texas and killed more than 130 people, authorities say. Gov. Greg Abbott said 97 people were ...

It is not unheard of to have multiple “100-year floods” or "1,000-year floods” in the same year, says John Nielsen-Gammon, the Texas state climatologist.