Weather Abbreviations and Acronyms

1. NMI
   Nautical Mile
2. NML
   Normal
3. NMM
   Nonhydrostatic Mesoscale Model
4. NMOC
   Naval Meteorology and Oceanography Command
5. NMOC
   National Meteorological Operations Centre
6. NMRS
   Numerous
7. NMS
   National Meteorological Services
8. NMSS
   National Meteorological Services
9. NMT
   National Hq Modernization Test
10. NMTW
    National Hq Modernization Test and Integration System Wfo System
11. NNE
    North-North-East
12. NNELY
    North-Northeasterly
13. NNERN
    North-Northeastern
14. NNEWD
    North-Northeastward
15. NNICE
    Neural Network for Icing
16. NNNN
    End of Message
17. NNW
    North-Northwest
18. NNWLY
    North-Northwesterly
19. NNWRN
    North-Northwestern
20. NNWS
    Noaa National Weather System

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