| Acronym | Meaning |
| WDC | World Data Center(s) |
| WEAP | Weather Education And Awareness Project |
| WEFAX | Weather Facsimile |
| WEPOCS | Western Equatorial Pacific Ocean Climate Studies |
| WERC | World Environment And Resources Council |
| WESTNET | University Of Colorado Network |
| WET-MAP | Mesoscale Alpine Project |
| WFF | Wallops Flight Facility |
| WFO | Weather Forecast Office |
| WFO-ADVNCED | The Key Element Of The WFO-Advanced Program Is The Forecaster Workstation Used To Demonstrate Many AWIPS Functions In Support Of The Modernized NWS Weather Forecast Office Operations |
| WG/MDM | Working Group For Meteorological Data Management |
| WG/NGWR | Working Group For Next-Generation Weather Radar |
| WGNE | Working Group On Numerical Experimentation |
| WGS84 | World Geodetic Survey 1984 |
| WHOI | Woods Hole Oceanographic Institute |
| WI | Workstation Interface |
| WICHE | Western Interstate Commission For Higher Education |
| WIFE | Wildfire Experiment |
| WIMPS | Weakly Interacting Massive Particles |
| WIND II | Wind Imaging Interferometer |
| WINDEX | Winter Doppler Experiment |
| WISP | Winter Icing And Storms Project |
| WISPIT | Winter Icing And Storms Project (WISP) Instrumentation Test |
| WITI | Weather Information Technologie |
| WKD | Wallace-Kratohvil Distribution |
| WLCE | White Light Coronagraph Experiments |
| WMC | World Meteorological Center(s) |
| WMO | World Meteorological Organization |
| WMP | Weather Modification Program |
| WMS | World Magnetic Survey |
| WOCE | World Ocean Circulation (or Climate) Experiment |
| WORD | Web Outreach Redesign And Development |
| WORM | Write Once |
| WORMTOMS | WORM To Mass Storage System |
| WOS | Weather Observing Systems Committee |
| WOTAN | Wind Observations Through Ambient Noise |
| WPDN | Wind Profiler Demonstration Network |
| WPL | Wave Propagation Laboratory |
| WPM | Well-Posed Model |
| WRF | Weather Research And Forecast |
| WRL | Willow Run Laboratories |
| WRP | Weather Research Program |
| WSDDM | Weather Support To Deicing Decision Making |
| WSFO | Weather Service Forecast Office |
| WSI | WSI Corporation |
| WSMR | White Sands Missile Range |
| WSO | Weather Service Office |
| WSP | Winter Storm Program |
| WSR-88D | Weather Surveillance Radar ? 1988 |
| WTWS | Windshear And Turbulence Warning System |