“The Today show co-host and weatherman writes a narrative history of the 1889 Johnstown flood, the deadliest in American history, immersing himself in the weather of the past.” — New York Times Book Review (“New & Noteworthy”)

“Roker takes readers back to Pennsylvania in 1889, and the deadliest flood in American history. … A tale that involves engineering, history, manufacturing giants, and of course, the weather.” — Popular Science (”New Science Books to Read this Weekend”)

“An exciting, tragic story seasoned with sensitive social analysis and criticism.” — Kirkus, starred review

“Roker’s harrowing tale of survival and loss… reads like a nail-biting thriller.” — Library Journal, starred review

“[A] riveting account of the Johnstown Flood, which still remains the deadliest natural disaster on American soil. … [A] page-turner sure to please.” — Booklist

“Both a good yarn and a morality tale. ... Roker, with a weatherman’s eye, describes the formation of the unprecedented rainstorms that led to the flooding and the ‘monster unchained’ that was the flood itself.” — Publishers Weekly

“Vividly told. … A stirring story of an event with lasting repurcussions.” — Bookreporter.com

AT THE HEIGHT OF THE GILDED AGE, TYCOONS BUILT A LAKEFRONT RESORT THAT LORDED OVER THE ALLEGHENY MOUNTAINS.

IN THE VALLEY BELOW, STEELWORKERS LABORED DAY AND NIGHT.

IN 1889, THE HEAVENS OPENED, AND A RECKONING WAS UNLEASHED. . . .

A gripping new history celebrating the remarkable heroes of the Johnstown Flood—the deadliest flood in U.S. history—from NBC host and legendary weather authority Al Roker

Central Pennsylvania, May 31, 1889: After a deluge of rain—nearly a foot in less than twenty-four hours—swelled the Little Conemaugh River, panicked engineers watched helplessly as swiftly rising waters threatened to breach the South Fork dam, built to create a private lake for a fishing and hunting club that counted among its members Andrew Mellon, Henry Clay Frick, and Andrew Carnegie. Though the engineers telegraphed neighboring towns on this last morning in May warning of the impending danger, residents—factory workers and their families—remained in their homes, having grown used to false alarms.

At 3:10 p.m., the dam gave way, releasing 20 million tons of water. Gathering speed as it flowed southwest, the deluge wiped out nearly everything in its path and picked up debris—trees, houses, animals—before reaching Johnstown, a vibrant steel town fourteen miles downstream. Traveling 40 miles an hour, with swells as high as 60 feet, the deadly floodwaters razed the city—home to 20,000 people—in minutes. The Great Flood, as it would come to be called, remains the deadliest in U.S. history, killing more than 2,200 people and causing $17 million in damage.

In Ruthless Tide, Al Roker follows an unforgettable cast of characters whose fates converged because of that tragic day, including John Parke, the engineer whose heroic efforts failed to save the dam; the robber barons whose fancy sportfishing resort was responsible for modifications that weakened the dam; and Clara Barton, the founder of the American Red Cross, who spent five months in Johnstown leading one of the first organized disaster relief efforts in the United States. Weaving together their stories and those of many ordinary citizens whose lives were forever altered by the event, Ruthless Tide is testament to the power of the human spirit in times of tragedy and also a timely warning about the dangers of greed, inequality, neglected infrastructure, and the ferocious, uncontrollable power of nature.