| ACARS | Aircraft Communications Addressing and Reporting System |
| AFGWC | Air Force Global Weather Central |
| AFOS | Automation of Field Operations and Services |
| ANL | Analysis |
| ARINC | Aeronautical Radio, Inc. |
| ASCII | Americal Standard Code for Information Interchange |
| AVN | Aviation |
| AWC | Aviation Weather Center |
| AWIPS | Advanced Weather Interactive Processing System |
| BUFR | Binary Universal Format for Data Representation |
| COOSAC | Committee On Operations, Standards And Conventions |
| COTR | Contract Office Technical Representative |
| CPC | Climate Prediction Center |
| DOCBLOCK | Computer program documentation block |
| DOS | Disk Operating System |
| EBCDIC | Extended Binary-Coded-Decimal Interchange Code |
| ECMWF | Europeran Center for Medium-range Weather Forecasting |
| EMC | Environmental Modeling Center |
| FNL | Final production run for given cycle |
| FNMOC | Fleet Numerical Meteorology and Oceanography Center |
| FNOC | Fleet Numerical Oceanographic Center (old name for FNMOC) |
| FOS | Family of Services |
| FTP | File Transfer Protocol |
| FTS | Federal Telecommunication Sysem |
| GBL | Global production run for given cycle |
| GDAS | Global Data Assimilation System production run for given cycle |
| GDM | Graphic Display Module |
| GES | Guess |
| GMT | Greenwich Mean Time (See also Z and UTC) |
| GOES | Geostationary Operational Environmental Satellite |
| GRIB | Gridded-Binary Data |
| GTS | Global Telecommunications System |
| HADS | Hydrometeorological Automated Data System |
| HPC | Hydrometeorological Prediction Center |
| IMSL | International Mathematical and Statistical Library |
| ISPAN | Information Stream Project for AWIPS/NOAAPORT |
| JIF | Job Implementation Form |
| JMC | Joint Meteorological Committee |
| JSC | Johnson Spaceflight Center |
| JSPO | Joint Systems Program Office for NEXRAD |
| LCN | Loosely Coupled Network |
| MAR | Modernization and Associated Restructuring Program |
| MARD | Modernization and Associated Restructuring Demonstration |
| MCIDAS | Man-Computer Interactive Data Access System |
| MIC | Meteorologist-In-Charge |
| MOA | Memorandum of Agreement |
| MOU | Memorandum of Understanding |
| MPC | Marine Prediction Center |
| MRF | Medium Range Forecast model |
| MSL | Mean Sea Level |
| MSLP | Mean Sea Level Pressure |
| NASA | National Aeronautics and Space Administration |
| NCCF | NOAA Central Computer Facility |
| NCDC | National Climatic Data Center |
| NCEP | National Centers for Environmental Prediction |
| NCO | NCEP Central Operations |
| NESDIS | National Environmental Satellite Data and Information Service |
| NEXRAD | Next Generation Weather Radar |
| NEXUS | Next Generation Upper-air System |
| NGM | Nested Grid Model (See also RGL) |
| NIDS | NEXRAD Information Dissemination Service |
| NMC | National Meteorological Center |
| NMFS | National Marine Fisheries Service |
| NOAA | National Oceanographic and Atmospheric Administration |
| NOS | National Ocean Survey |
| NWS | National Weather Service |
| NWSTG | National Weather Service Telecommunications Gateway |
| OFOAR | OFfice of Oceanic and Atmospheric Research |
| OI | Optimum Interpolation method |
| ON | Office Note |
| PE | Primitive Equation |
| PROD | Production (for operational jobs) |
| RGL | Regional model (See also NGM) |
| RUNHST | Run History |
| SDM | Senior Duty Meteorologist |
| SEC | Space Environment Center |
| SPC | Storm Prediction Center |
| STK | Storage Technology |
| TPB | Technical Procedures Bulletin |
| TPC | Tropical Prediction Center |
| UCAR | University Corportation for Atmospheric Research |
| UCL | UNICOS Control Language (shell script) |
| UKMO | United Kingdom Meteorological Office |
| UPS | Uninterruptable Power Supply |
| UTC | Greenwich Mean Time (See also Z and GMT) |
| VAFTAD | Volcanic Ash Forecast Transport and Dispersion |
| WAFS | World Area Forecast System (WAFS) |
| WMSC | Weather Message Switching Center |
| WMO | World Meteorological Organization |
| WWB | World Weather Building |
| Z | Greenwich Mean Time (See also UTC and GMT) |
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