The National Weather Service issued a series of upgraded warnings in quick succession as rivers across the region began to rise.Early Thursday afternoon, the National Weather Service issued a broad flood watch for parts of south-central Texas, including Kerr County, warning that a slow-moving storm system was expected to bring anything from scattered showers to intense storms through Friday morning. Such warnings are common when conditions are favorable for a weather event, and are often followed by a warning when a dangerous event is occurring or about to occur. And that’s what happened very early on Friday morning, when the...