The primary developer of WXP Dan Vietor developed the wxp.eas.purdue.edu web site which became one of the first weather web sites on the World Wide Web. With the move of the developer to Unisys in 1998, the rights to WXP were transferred to the Unisys corporation. As of 2020, Unisys no longer supports WXP but the developer continues to maintain and support it.
WXP, the Weather Processor, is a weather data manipulation and visualization package developed at Purdue University in the 1980s. In 1989, WXP was adopted by Unidata as the Unix-based weather analysis tool and was distributed to over 40 universities. WXP became a showcase venture for Unidata which at the time was promoting many of the new standards of software development and user interaction.