| Abbreviation | Definition |
|---|---|
| AWS | Air Weather Service |
| AWS | Automated Weather Service |
| AWSA | Automated Wind Shear Alert |
| AWW | Average Wet Weather |
| BA | Big Air |
| BAMOS | Bulletin of the Australian Meteorological and Oceanographic Society |
| BAMS | Baron Advanced Meteorological Systems |
| BAMS | Bulletin of American Meteorological Society |
| BAP | Barometric Absolute Pressure |
| BAR | Brown And Root |
| BASIS | Baltic Air Sea Ice Study |
| BASMI | Bath Ankylosing Spondylitis Metrology Index |
| BBSS | Balloon Borne Sounding System |
| BBWS | Buffalo Bill Weather Station |
| BDA | Bone Dry Air |
| BDC | Big Dark Cloud |
| BDMD | Brunei Darussalam Meteorological Department |
| BDMD | Brunei Darussalam the Meteorological Department |
| BED | Battlefield Environment Directorate |
| BF | Beaufort |