I assume it means 97 square kilometers, because covering a circle of 97 km radius in 15 minutes would require a 776 km/hour wind :) But it is written very uncl

I assume it means 97 square kilometers, because covering a circle of 97 km radius in 15 minutes would require a 776 km/hour wind :) But it is written very unclearly, and it's not clear what is wikipedia's source, sadly. It just seemed plausible that there could be plenty of smoke coverage for the scenario under discussion