Modern technology has added powerful tools for warning the public, but emergency management research suggests different warning systems often reach people in different situations.

Tornado sirens remain crucial despite tech advances, says Andy Goddard of Goddard Enterprises, emphasizing their role in catching public attention.

ST. LOUIS – May’s tornado exposed flaws in the emergency notification system, some of which still present problems. Six months after the deadly storm, there is both good news and bad news to report ...