Question: How many hours did the storm which surpassed Typhoon Nora in 2015, grow from a tropical storm to a Category 5 hurricane?
Sentence (from "Hurricane Felix"): A day later it rapidly strengthened into a major hurricane, and early on September 3 it was upgraded to Category 5 status; by 2100 UTC, the hurricane was downgraded to Category 4 status, but was upgraded to a Category 5 hurricane for the second and final time by the morning of September 4.
Relevant evidence: No