| Abbreviation | Definition |
|---|---|
| TOVS | Tiros Operational Vertical Sounding |
| TPC | Tropical Prediction Center |
| TPEM | Tepee Creek, Montana, Hydromet station |
| TPGAs | Trench-Parallel Gravity Anomalies |
| TPH | Temperature Pressure Humidity |
| TPK | Terrain Production Kit |
| TPRH | Temperature, Pressure, Relative Humidity |
| TRADOC | Training and Doctrine Command |
| TRB | Test Review Board |
| TROWAL | TROugh of Warm Air Aloft |
| TS | Tropical Storm |
| TSMS | Turkish State Meteorological Service |
| TSRB | Tropical Storm Risk Business |
| TTMM | Tri Trophic Metapopulation Model |
| TW | Tornado Warning |
| TWEB | Transcribed Weather Broadcast |
| TWLM | TWIN LAKES, Montana, Hydromet station |
| TWM | Traditional Weather Modification |
| TWR | Tactical Weather Radar |
| TWS | Tsunami Warning System |