Flash flooding

Our guest is the California-based seismologist, Dr. Lucy Jones, whose new book is "The Big Ones." It offers a bracing look at some of the history's greatest natural disasters, world-altering events whose reverberations we continue to feel today. At Pompeii, for example, Dr. Jones explores how a volcanic eruption in the first century AD challenged prevailing views of religion. Later in the book, she examines the California floods of 1862 and how they show that memory itself can change or fade over successive generations.

KWGS File photo

With many inches of rain expected, emergency managers warn people not to drive or walk into rushing floodwaters. Severe storms are possible with this system, but Tulsa Area Emergency Management Agency Director Roger Joliff says the biggest threat is flash flooding. He says even if rushing water doesn't look deep, it's best not to take a chance. Turn around and find another route.