Verification of tracks made of Marco
I made five tracks of Hurricane Marco, before it was assessed as a tropical cyclone. I made one more track after that point. Additionally, within 480 hours of cyclogenesis, there were eight instances, when I missed cyclogenesis entirely. Intensification to hurricane was consistently missed. As of this analysis, best track positions are available August 15, 00Z thru August 25, 06Z, and as such, position comparisons are possible only for this timespan. Since I give only SSHS categories in my tracks, I don't calculate intensity errors in units of speed, but in categories. For this purpose, I define tropical or subtropical storms as "Category 0", tropical or subtropical depressions as "Category -1" and non-existence of a tropical or subtropical cyclone as "Category -2". In the five tracks (made before operationally recognized cyclogenesis), formation times ranged between August 16, 18Z and August 22, 18Z. Average was August 19, 18Z and median wa...