The 1920s brought several favorable conditions that helped the land and population boom, one of which was an absence of any severe storms. The last severe hurricane, in 1906, had struck the Florida Keys. Many homes were constructed hastily and poorly as a result of this lull in storms.[54] However, on September 18, 1926, a storm that became known as the 1926 Miami Hurricane struck with winds over 140 miles per hour (230 km/h), and caused massive devastation. The storm surge was as high as 15 feet (4.6 m) in some places. Henry Flagler's opulent Royal Palm Hotel was destroyed along with many other hotels and buildings. Most people who died did so when they ran out into the street in disbelief while the eye of the hurricane passed over, not knowing the wind was coming in from the other direction. "The lull lasted 35 minutes, and during that time the streets of the city became crowded with people", wrote Richard Gray, the local weather chief. "As a result, many lives were lost during the second phase of the storm."[55] In Miami alone, 115 people were counted dead—although the true figure may have been as high as 175, because death totals were racially segregated.[54] More than 25,000 people were homeless in the city. The town of Moore Haven, bordering Lake Okeechobee, was hardest hit. A levee built of muck collapsed, drowning almost 400 of the town's entire 1,200 residents.[56] The tops of Lake Okeechobee levees were only 18 to 24 inches (46 to 61 cm) above the lake itself and the engineers were aware of the danger. Two days before the hurricane, an engineer predicted, "[i]f we have a blow, even a gale, Moore Haven is going under water". The engineer lost his wife and daughter in the flood.[57]