Assertion: category hurricane | /r/HasProperty | the first
Facets:
Source sentences:
text: The effects of southwesterly wind shear unexpectedly abated late that day, and Matthew began a period of explosive intensification; during a 24-hour period beginning at 00:00 UTC on September 30, the cyclone's maximum winds more than doubled, from 80 mph (130 km/h) to 165 mph (270 km/h), making Matthew a Category 5 hurricane, the first since Felix in 2007; the rate of intensification has only been exceeded a few times in the Atlantic since records began.
text: Just after its initial landfall, Irene was accordingly upgraded to a Category 1 hurricane, the first of the 2011 Atlantic hurricane season.