Want to track a weather balloon here is a very neat website that tracks all the weather balloon across the country. Here in Pittsburgh the NWS launch balloons at 7:00 AM and 7:00 PM. Some times at other times like during storms.
The SondeHub Tracker provides live and historical view of the data contained within the SondeHub Radiosonde telemetry database. This data is openly available, and licensed under Creative Commons By-SA 2.0. While primarily designed to assist with the tracking, recovery and re-use of meteorological radiosondes, it also provides a view of the meteorological data gathered by these devices.
So who wants to go on a fox hunt?