The WSP is the wind shear detection and alert system currently used by the Air Traffic Control at 34 medium size airports nationwide. The system was developed and enhanced by the MIT Lincoln Laboratory and built by Northrop-Grumman as an add-on modification to the Airport Surveillance Radar ASR-9. Continuous meteorological support for the WSP is provided by the Weather Processors and Sensors Branch of the FAA Air Traffic Organization in Oklahoma City. This presentation gives a glimpse into the actual performance and use of the WSP as reflected in records of meteorological events.