Weather Abbreviations and Acronyms

1. INFRA
   Below
2. INLD
   Inland
3. INM
   Instituto Nacional De Meteorologia
4. INOP
   Inoperative
5. INP
   If Not Possible
6. INPR
   In Progress
7. INR
   Intermittent
8. INR
   Interval
9. INS
   Inertial Navigation System
10. IO
    Iowa
11. IO
    Investigating Officers
12. IODC
    Indian Ocean Date Coverage
13. IOLC
    Indian Ocean Low Clouds
14. ION
    January
15. IOS
    Investigating Officers
16. IOS
    Integrated Operational Services
17. IOVC
    In Overcast
18. IP
    In Progress
19. IP
    Invisible Particles
20. IP
    Ice Pellets

Last updated: May 24, 2020 — Total entries: 5,468