Verification of Atlantic ghost storm tracks of June-July 2021

I falsely detected (sub)tropical cyclogenesis in Atlantic (north of equator and west of Greenwich) 16 times in June thru July of 2021. Additionally, East Pacific cyclogeneses lead to Atlantic crossover 1 time. Tracks were made of 10 systems.

In the calculations, crossover from East Pacific as a tropical cyclone is considered equal to formation, and crossover into East Pacific as a tropical cyclone is considered equal to dissipation.

At the lead time of 1 day (24 hours), there were 0 false detections.
At the lead time of 2 days (48 hours), there was 1 false detection.
At the lead time of 3 days (72 hours), there were 2 false detections.
At the lead time of 4 days (96 hours), there was 1 false detection.
At the lead time of 5 days (120 hours), there were 0 false detections.
At the lead time of 6 days (144 hours), there were 2 false detections.
At the lead time of 7 days (168 hours), there were 4 false detections.
At the lead time of 8 days (192 hours), there were 4 false detections.
At the lead time of 9 days (216 hours), there were 3 false detections.
At the lead time of 10 days (240 hours), there were 2 false detections.
At the lead time of 11 days (264 hours), there were 2 false detections.
At the lead time of 12 days (288 hours), there was 1 false detection.
At the lead time of 13 days (312 hours), there were 3 false detections.
At the lead time of 14 days (336 hours), there were 2 false detections.
At the lead time of 15 days (360 hours), there were 3 false detections.
At the lead time of 16 days (384 hours), there were 2 false detections.
At the lead time of 17 days (408 hours), there was 1 false detection.
At the lead time of 18 days (432 hours), there were 2 false detections.
At the lead time of 19 days (456 hours), there were 4 false detections.
At the lead time of 20 days (480 hours), there were 2 false detections.
At the lead time of 21 days (504 hours), there was 1 false detection.

 Ghost storm L#18

This lone track of long lead time is somewhat similar to Claudette... but not enough. This is unidentifiable.

June 7, 18Z:

Ghost storm L#19

This somewhat coincides with the west end of the cold front in the following synoptic chart.

June 7, 18Z:

Ghost storm L#20

This is identifiable with absolutely nothing.

June 17, 06Z:

June 20, 06Z:

June 24, 18Z:

Ghost storm L#21

This is identifiable with a tropical wave, extending south from Cabo Verde islands in the following synoptic chart. It was also known as Invest 95L.

June 23, 06Z:

June 23, 18Z:

June 24, 18Z:

June 26, 18Z:

System L#25

was not a ghost storm. Rather, it was Elsa.

 

Ghost storm L#26

 This isn't really identifiable with anything.

June 30, 12Z:

Ghost storm L#27

This is completely unidentifiable.

July 4, 12Z:

July 5, 18Z:

Ghost storm E#30

This crossover ghost is unidentifiable with anything in Atlantic - and with anything in East Pacific.

July 21, 12Z: