Weather Feed is a Cloudflare Worker that combines several weather sources for Kościelec / Chrzanów and publishes meaningful changes instead of repeating nearly identical readings.
What it combines#
- three point-weather sources reduced to median + spread,
- IMGW meteo alerts for powiat chrzanowski,
- IMGW hydro alerts for małopolskie,
- air quality,
- a nearby IMGW station as reference context.
Endpoints#
| Endpoint | Purpose |
|---|---|
GET /feed.atom | all meaningful change entries |
GET /warnings.atom | IMGW warning-only feed |
GET /state.json | latest ensemble, warnings, air quality and station context |
GET /healthz | health/staleness check |
GET / | human-facing page |
Change-oriented output#
Current-condition entries are emitted for notable condition changes, temperature shifts of at least 3 °C, or precipitation start/stop. Forecast entries focus on meaningful maximum-temperature revisions and 50% rain-probability crossings.
A partial IMGW outage preserves the last known warning state for the failed category rather than inventing a false all-clear.
Deploy#
Open-Meteo and IMGW require no key. If keyed providers are absent, the Worker can continue in a degraded mode.