 Now from the WHIO News Center, here are the three big things you need to know. A man is in critical condition following a stabbing in Dayton last night. Beryl is a weakening tropical storm. And a mail truck is left on its side after a crash in Miamisburg. Full details on these stories and more, our next scheduled newscast at 2 o'clock. I'm Will Harris, WHIO Continuing News. What is the WHIO Storm Center? It means...