15. Mirage

 

14. Moonbow

13. Storm lightning

12. Mammatus cloud

11. Circumhorizontal arc

 

10. Lenticular clouds

9. Tornado

 

8. Kelvin—Helmholtz clouds

7. Sun eclipse

 

6. Cloud holes

5. Moon dog

 

4. Pearl clouds

3. Norwegian spiral anomaly

 

2. Fire tornado

1. Sun dogs

 

Bonus: Zambian “Dementor”

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