Assertion: small hurricane | /r/CapableOf | attain category 4 intensity
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text: On September 2, Betsy began to quickly intensify, and after strengthening to a Category 3 hurricane-equivalent – a major hurricane on the modern-day Saffir–Simpson hurricane wind scale[nb 4] – the small hurricane attained Category 4 intensity and reached an initial peak intensity with winds of 140 mph (220 km/h) at 0000 UTC on September 4, while situated well north of the Turks and Caicos.