| N |
North or Refractivity |
| NAB |
Not above |
| NAT |
North Atlantic |
| NATL |
National |
| NAV |
Navigation |
| Navtex |
Navigational Telex |
| NB |
New Brunswick or Northbound |
| NBFR |
Not before |
| NBND |
Northbound |
| NBRHD |
Neighborhood |
| NC |
North Carolina or No change |
| NCCF |
NOAA Central Computer Facility. |
| NCDC |
National Climatic Data Center |
| NCEP |
National Centers for Environmental Prediction |
| NCWX |
No change in weather |
| ND |
North Dakota |
| NE |
Northeast or Nebraska |
| NEB |
North-eastbound or Nebraska |
| NEC |
Necessary |
| NEG |
No, negative, permission not granted, or that is not correct |
| NEGLY |
Negatively |
| NELY |
Northeasterly |
| NERN |
Northeastern |
| NESDIS |
National Environmental Satellite, Data, and Information Service |
| NEW ENG |
New England |
| NEWD |
Northeastward |
| NEXRAD |
NEXt generation of weather RADar |
| NFDRS |
National Fire Danger Rating System |
| NFLD |
Newfoundland |
| NGM |
Nested Grid Model |
| NGT |
Night |
| NH |
New Hampshire |
| NHC |
National Hurricane Center |
| NIDS |
NEXRAD Information Dissemination Service |
| NIL |
None or I have nothing to send to you |
| NJ |
New Jersey |
| NL |
No layers |
| NLT |
Not later than |
| NLY |
Northerly |
| NM |
Nautical mile or New Mexico |
| NMBR |
Number |
| NMBRS |
Numbers |
| NMC |
National Meteorological Center - the former name of NCEP |
| NML |
Normal |
| NMRS |
Numerous |
| NNE |
North north east |
| NNELY |
North-northeasterly |
| NNERN |
North-northeastern |
| NNEWD |
North-northeastward |
| NNNN |
End of message |
| NNW |
North-northwest |
| NNWLY |
North-northwesterly |
| NNWRN |
North-northwestern |
| NNWWD |
North-northwestward |
| NOAA |
National Oceanic and Atmospheric Administration |
| NOHRSC |
The National Operational Hydrologic Remote Sensing Center |
| NOPAC |
Northern Pacific |
| NOSIG |
No significant change (used in trend-type landing forecasts) |
| NOTAM |
A notice containing information concerning the establishment, condition or change in any aeronautical facility |
| NOV |
November |
| NOW |
Short Term Forecast |
| NOWcast |
Short Term Forecast |
| NPRS |
Nonpersistent |
| NR |
Number or Near |
| NRCS |
Natural Resources Conservation Service |
| NRLY |
Nearly |
| NRN |
Northern |
| NRW |
Narrow |
| Ns |
Nimbostratus |
| NS |
Nimbostratus or Nova Scotia |
| NSC |
Nil significant cloud |
| NSH |
Nearshore Lake Forecast |
| NSSFC |
National Severe Storms Forecast Center now known as SPC |
| NSSL |
National Severe Storms Laboratory |
| NSW |
Nil significant weather |
| NTFY |
Notify |
| NTFYD |
Notified |
| NV |
Nevada |
| NVA |
Negative Vorticity Advection |
| NW |
Northwest |
| NWB |
North-westbound |
| NWD |
Northward |
| NWFO |
National Weather Service Forecast Office |
| NWLY |
Northwesterly |
| NWP |
Numerical Weather Prediction |
| NWR |
NOAA Weather Radio |
| NWRN |
Northwestern |
| NWS |
National Weather Service |
| NWSH |
National Weather Service Headquarters |
| NWSO |
National Weather Service Office |
| NWSRFS V5.0 |
National Weather Service River Forecast Model Version 5 |
| NWWS |
NOAA Weather Wire System |
| NXT |
Next |
| NY |
New York |
