A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

WWest or western longitude
WWhite
WACWorld Aeronautical Chart − ICAO 1 : 1 000 000 (followed by name/title)
WAFCWorld area forecast centre
WBWestbound
WBARWing bar lights
WDIWind direction indicator
WDSPRWidespread
WEDWednesday
WEFWith effect from or effective from
WGS−84World Geodetic System − 1984
WIWithin
WIDWidth
WIEWith immediate effect or effective immediately
WILCOWill comply
WINTEMForecast upper wind and temperature for aviation
WIPWork in progress
WKNWeaken or weakening
WNWWest north west
WOWithout
WPTWay−point
WRNGWarning
WSWind shear
WSPDWind speed
WSWWest south west
WTWeight
WTSPTWaterspout
WXWeather
WXRWeather radar
(C) 2012-18 Jan Hrkal