The National Severe Storms Laboratory’s (NSSL) Precipitation Identification Near the Ground (PING) project is looking for citizen scientists who can report on certain weather conditions—hail and winter weather, in particular—from the ground. NSSL, part of the National Oceanic and Atmospheric Administration (NOAA), collects weather information from Next Generation Weather Radar (NEXRAD) during storm events. However, these Doppler radars cannot see close to the ground. Through PING, NSSL wants to compare its radar findings with citizen-science observations.

Citizen scientists can report their findings using iPhone or Android apps, or via a Web browser. The mPING apps were designed as a scientific tool to help us fulfill two very specific applied research missions: winter surface precipitation type and hail occurrence/size.