| Abbreviation | Definition |
|---|---|
| ATCOS | Army Tactical Command and Control System |
| ATFP | Advanced Travel Forecasting Procedures |
| ATH | After The Hurricane |
| ATL | Air To Land |
| ATM | Asynchronous Transfer Mode |
| ATM | Atmosphere |
| AUBM | Australian Bureau of Meteorology |
| AVAPS | Atmospheric Vertical Profiling System |
| AVIM | Atmosphere Vegetation Interaction Model |
| AVS | Ambient Vapor Sampling |
| AW | All Weather |
| AWARE | Advanced Weather And Related E-mails |
| AWC | Aviation Weather Center |
| AWDS | Automated Weather Distribution System |
| AWE | Advance Warfighting Experiment |
| AWG | Atmospheric Water Generator |
| AWIS | Automated Weather Information System |
| AWN | Automated Weather Network |
| AWOS | Automated Weather Observing System |
| AWRS | Aviation Weather Reporting Station |