NOTAM Contractions Abbreviations and Acronyms

1. NNERN
   North–northeastern (weather reports only)
2. NNEWD
   North–northeastward (weather reports only)
3. NNWRN
   North–northwestern (weather reports only)
4. NNWWD
   Northwestward (weather reports only)
5. NO
   Number
6. NO
   Not available (e.g. SLPNO, RVRNO)
7. NOCT
   Night
8. NON STD
   Nonstandard
9. NONSTD
   Nonstandard
10. NOPT
    No Procedure Turn Required
11. NOR
    North
12. NOS
    Number
13. NPRS
    Nonpersistent
14. NR
    Number
15. NS
    Nova Scotia
16. NS
    Nimbostratus
17. NTAP
    Notice To Airmen Publication
18. NTH
    North
19. NUM
    Number
20. NVA
    Negative Vorticity Advection

Last updated: September 14, 2020 — Total entries: 1,482