Sondefinder Sondefinder [how to use this tool] View Recent Weather Balloons Choose location: Enter a lat,lon for search (be sure to separate with a comma!), or tap "Use Device Location" Choose search radius in km Choose how many days to look back (max 6) Select "Load Sondes" Sort the data as desired (default is Altitude) Choose "Predict" to show approx. landing area Note: less horizontal distance traveled = generally more accurate Tap "Copy Predicted Lat/Lon" and paste it into Google Maps Use Device Location Lat, Lon: Distance (km): Time (days): Load Sondes Upload CSVs: Upload and Render Check Recoveries Download Results (CSV) Download with Predictions (CSV) Download Results (KML) Download with Predictions (KML) Sort by Distance Sort by Altitude Sort by Datetime Sort by Uploader Callsign Sort by Type Sort by Subtype Sort by Recovered