01 / PLAYGROUND
Trail Watch
Contrail Forecast  ·  Atmospheric Data  ·  Debunking Tool

A real-time contrail likelihood forecast built on live atmospheric data from the Open-Meteo API. Checks relative humidity at cruise altitude (200–300hPa) across daylight hours and tells you whether persistent trails are likely, short-lived, or improbable — in 3-hour slots, up to 5 days ahead.

If someone points at spreading contrails and says something suspicious is going on, pull this up. If the humidity was high that day and persistent trails were predicted — that's atmospheric physics. That's what this tool shows.

// Trail Watch is an AudioVisualPlayground tool, hosted separately on GitHub Pages — browser security restrictions (CORS) require live API calls to run from a different domain. Same project, different address.

Free No account needed Live API data 5-day forecast Any location Chemtrail debunker
Data source: Open-Meteo (DWD ICON + ECMWF models)
Altitude levels: 200hPa · 250hPa · 300hPa (cruise altitude)
Forecast slots: 3-hour windows · daylight hours only
Open →

// In the pipeline

Playground
Unknown experiment
Something is probably being built. No ETA.
Unscheduled
Playground
Unknown experiment
The interesting challenge hasn't been identified yet.
Unscheduled
Playground
Unknown experiment
Check back at some point.
Unscheduled