**Statistics**

Category 4 hurricanes have maximum sustained winds of 113–136 knots (130–156 mph, 209–251 km/h). "Sustained winds" refers to the average wind speed observed over one minute at a height of 10 meters (33 ft) above ground. Gust can be 30% higher than the sustained winds. Mobile homes and other buildings without fixed structures can be completely destroyed, and the lower floors of sturdier structures usually sustain major damage. In addition to the winds, the cyclones generally produce a storm surge of 13–18 feet (4–5.5 m) above normal, potentially causing major beach erosion. Heavy, irreparable damage and/or near complete destruction of gas station canopies and other wide span overhang type structures are also very common, and mobile and manufactured homes are often completely destroyed. Low-level terrain may be flooded well inland, as well. In addition, Category 4 hurricanes are very often Cape Verde type hurricanes. Cape Verde hurricanes are usually the strongest, and their track sometimes points them towards the United States, or other land.

Studies have shown that due to global warming, major hurricanes, categories 3, 4, and 5, have nearly doubled in occurrence in the past 35 years. Also, due to growing population in major coastal cities, many areas have become more vulnerable to strong hurricanes, especially categories 4 and 5.

Read more about this topic: List Of Category 4 Atlantic Hurricanes

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### Famous quotes containing the word statistics:

“O for a man who is a man, and, as my neighbor says, has a bone in his back which you cannot pass your hand through! Our *statistics* are at fault: the population has been returned too large. How many men are there to a square thousand miles in this country? Hardly one.”

—Henry David Thoreau (1817–1862)

“and Olaf, too

preponderatingly because

unless *statistics* lie he was

more brave than me: more blond than you.”

—E.E. (Edward Estlin)

“July 4. *Statistics* show that we lose more fools on this day than in all the other days of the year put together. This proves, by the number left in stock, that one Fourth of July per year is now inadequate, the country has grown so.”

—Mark Twain [Samuel Langhorne Clemens] (1835–1910)