Verification of tracks made of Sam
I made four tracks of Hurricane Sam, before it was assessed as a tropical cyclone. I made three more track after cyclogenesis. Additionally, within 504 hours of cyclogenesis, there were four instances, when I missed cyclogenesis entirely. As of this analysis, best track positions are available September 19, 00Z thru October 5, 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 four tracks (made before operationally recognized cyclogenesis), formation times ranged between September 23, 00Z and September 30, 00Z. Average was September 27, 03Z and median was September 27, 18Z. In the eight c...