| Acronym | Meaning |
| ISWS | Illinois State Water Survey |
| VTR | Video Tape Recorder |
| MESONET | Mesoscale Network |
| POD | Probability Of Detection |
| MRI | Meteorological Research Institute |
| ESML | Earth Science Markup Language |
| APA | Allied Pilot's Association |
| VTVM | Vacuum Tube Voltmeter |
| ASTIA | Armed Services Technical Information Agency |
| LLP | Lightning Location And Protection |