| ZWA | Zonal Wind Anomaly | - | Business and Finance |
| ZTD | Zenith Tropospheric Signal Delay | - | Business and Finance |
| ZOLD | Zeroth Order Logarithmic Distribution Function | - | Business and Finance |
| ZDR | Differential Reflectivity | - | Business and Finance |
| ZAMS | Zero Age Main Sequence | - | Business and Finance |
| Z-R | Relationship | - | Business and Finance |
| Z | Reflectivity (Lenschow) Or Reflective Factor (FOF) | - | Business and Finance |
| YAG | Yttrium | - | Business and Finance |
| Y/C | Luminance/Chrominance | - | Business and Finance |
| XUV | Extreme Ultraviolet | - | Business and Finance |
| XMDSL | X Window Interface Distributed Software Library | - | Business and Finance |
| XANADU | Software Name | - | Business and Finance |
| WYSIWYG | What You See Is What You Get | - | Business and Finance |
| WX | Weather | - | Business and Finance |
| WWW | World Weather Watch | - | Business and Finance |
| WWW | World Wide Web | - | Business and Finance |
| WWV | Call Letters For The NBS Shortwave Radio Station That Broadcasts Time Signals Only | - | Business and Finance |
| WWRP | World Weather Research Programme | - | Business and Finance |
| WWG | Workstation Working Group Of COMET | - | Business and Finance |
| WVR | Water Vapor Radiometers | - | Business and Finance |
| WVIOP | Water Vapor Intensive Observing Period | - | Business and Finance |
| WVF | Water Vapor Flux | - | Business and Finance |
| WTWS | Windshear And Turbulence Warning System | - | Business and Finance |
| WSR-88D | Weather Surveillance Radar ? 1988 | - | Business and Finance |
| WSP | Winter Storm Program | - | Business and Finance |
| WSO | Weather Service Office | - | Business and Finance |
| WSMR | White Sands Missile Range | - | Business and Finance |
| WSI | WSI Corporation | - | Business and Finance |
| WSFO | Weather Service Forecast Office | - | Business and Finance |
| WSDDM | Weather Support To Deicing Decision Making | - | Business and Finance |
| WRP | Weather Research Program | - | Business and Finance |
| WRL | Willow Run Laboratories | - | Business and Finance |
| WRF | Weather Research And Forecast | - | Business and Finance |
| WPM | Well-Posed Model | - | Business and Finance |
| WPL | Wave Propagation Laboratory | - | Business and Finance |
| WPDN | Wind Profiler Demonstration Network | - | Business and Finance |
| WOTAN | Wind Observations Through Ambient Noise | - | Business and Finance |
| WOS | Weather Observing Systems Committee | - | Business and Finance |
| WORMTOMS | WORM To Mass Storage System | - | Business and Finance |
| WORM | Write Once | - | Business and Finance |
| WORD | Web Outreach Redesign And Development | - | Business and Finance |
| WOCE | World Ocean Circulation (or Climate) Experiment | - | Business and Finance |
| WMS | World Magnetic Survey | - | Business and Finance |
| WMP | Weather Modification Program | - | Business and Finance |
| WMO | World Meteorological Organization | - | Business and Finance |
| WMC | World Meteorological Center(s) | - | Business and Finance |
| WLCE | White Light Coronagraph Experiments | - | Business and Finance |
| WKD | Wallace-Kratohvil Distribution | - | Business and Finance |
| WITI | Weather Information Technologie | - | Business and Finance |
| WISPIT | Winter Icing And Storms Project (WISP) Instrumentation Test | - | Business and Finance |
| WISP | Winter Icing And Storms Project | - | Business and Finance |
| WINDEX | Winter Doppler Experiment | - | Business and Finance |
| WIND II | Wind Imaging Interferometer | - | Business and Finance |
| WIMPS | Weakly Interacting Massive Particles | - | Business and Finance |
| WIFE | Wildfire Experiment | - | Business and Finance |
| WICHE | Western Interstate Commission For Higher Education | - | Business and Finance |
| WI | Workstation Interface | - | Business and Finance |
| WHOI | Woods Hole Oceanographic Institute | - | Business and Finance |
| WGS84 | World Geodetic Survey 1984 | - | Business and Finance |
| WGNE | Working Group On Numerical Experimentation | - | Business and Finance |
| WG/NGWR | Working Group For Next-Generation Weather Radar | - | Business and Finance |
| WG/MDM | Working Group For Meteorological Data Management | - | Business and Finance |
| 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 | - | Business and Finance |
| WFO | Weather Forecast Office | - | Business and Finance |
| WFF | Wallops Flight Facility | - | Business and Finance |
| WET-MAP | Mesoscale Alpine Project | - | Business and Finance |
| WESTNET | University Of Colorado Network | - | Business and Finance |
| WERC | World Environment And Resources Council | - | Business and Finance |
| WEPOCS | Western Equatorial Pacific Ocean Climate Studies | - | Business and Finance |
| WEFAX | Weather Facsimile | - | Business and Finance |
| WEAP | Weather Education And Awareness Project | - | Business and Finance |
| WDC | World Data Center(s) | - | Business and Finance |
| WCRP | World Climate Research Program | - | Business and Finance |
| WCIRP | World Climate Impacts And Response Strategies Program | - | Business and Finance |
| WBSI | Western Behavioral Sciences Institute | - | Business and Finance |
| WBRT | Weather Bureau Radio Thoedolite | - | Business and Finance |
| WBGT | Wet Bulb Globe Temperature | - | Business and Finance |
| WATS | Wide Area Telecommunications Service | - | Business and Finance |
| WATOX | Western Atlantic Ocean Experiment | - | Business and Finance |
| WAS | Whole Air Sampler | - | Business and Finance |
| WARN | Weather-Auto Relay Network | - | Business and Finance |
| WAN | Wide Area Network | - | Business and Finance |
| WAMPP | Wave Momentum Parameterization Program | - | Business and Finance |
| WAMFLEX | Wave Momentum Flux Experiment | - | Business and Finance |
| WACCM | Whole Atmosphere Community Climate Model | - | Business and Finance |
| W-Z RELATIONSHIP | W = Precipitation Content | - | Business and Finance |
| W-Z RELATIONSHIP | W = Precipitation Content | - | Business and Finance |
| VWS | Vertical Wind Shear | - | Business and Finance |
| VUG | Visualization Users Group | - | Business and Finance |
| VU | Voice Unit | - | Business and Finance |
| VTVM | Vacuum Tube Voltmeter | - | Business and Finance |
| VTVM | Vacuum Tube Voltmeter | - | Business and Finance |
| VTR | Video Tape Recorder | - | Business and Finance |
| VTR | Video Tape Recorder | - | Business and Finance |
| VTPR | Vertical Temperature Profile Radiometer | - | Business and Finance |
| VTPR | Vertical Temperature Profile Radiometer | - | Business and Finance |
| VTD | Velocity Track Display | - | Business and Finance |
| VTAM | Virtual Telecommunications Access Method | - | Business and Finance |
| VSWR | Voltage Standing-wave Ratio | - | Business and Finance |
| VSP | Visiting Scientist Programs | - | Business and Finance |
