A calm, nearly empty screen that speaks up only when something nearby needs attention — a weather warning, an earthquake, smoky air. When all is well it shows one quiet line, the time and the place, on a slowly shifting field of soft colour. When an alert does apply to your place it becomes a large plain headline, one line about what to do, and who said so. It is a convenience, not a safety system: follow official alerts and local advice.
Weather warnings, watches and advisories come from the US National Weather Service, earthquakes from USGS, and air quality (wildfire smoke included) plus optional heat, cold and wind limits from Open-Meteo, whose name appears on the alerts it supplies (CC BY 4.0). Weather warnings are US-only; elsewhere earthquakes, air quality and the forecast limits still work. All of it is fetched straight from the browser, with no server of ours in between.
The words appear only when every watched source has answered recently. If the network or a source goes quiet the screen turns grey and dotted and says it can’t reach alerts — it never claims all is well on the strength of no news. Colour is restrained: amber for advisories and watches, a deeper tone for warnings, red only for the extreme.
A place. There is no default, because an all clear for a place nobody chose would be a lie. Then you decide what matters: the weather level, the earthquake magnitude and distance, an air-quality threshold, and optional heat, cold and wind limits. A soft chime for new alerts is off unless asked for, and stays silent until the screen has been tapped once.
Setup
A browser is genuinely enough — the Mac app and Fully Kiosk below are conveniences, not requirements.
F11 on Windows and Linux, ⌃⌘F on macOS.chrome --kiosk <url> — on macOS, open -a "Google Chrome" --args --kiosk <url>.Displays are ordinary web pages, so anything that can hold one open works: a Raspberry Pi on a monitor, a retired iPad, a Fire tablet, the browser built into a TV.
Configuration
Everything below, plus a live preview and a URL builder that writes the link for you, is at all-clear.livingkiosk.com/setup.
| Parameter | Default | Meaning |
|---|---|---|
lat, lon | — | The place. Both or neither. With none, the screen says “Choose a place” and watches nothing. |
place | the coordinates | What the place is called. |
tz | the screen’s own | An IANA zone for the clock and every time shown. |
units | us | metric for °C, km/h and kilometres. |
clock | 12 (us) / 24 | 12 or 24. |
theme | calm | night: near black and very dim. |
weather | on | off hides US weather warnings, watches and advisories. |
min | advisory | warning hides advisories and watches. |
quake | 4 | Minimum earthquake magnitude (2.5–8), or off. |
radius | 100 mi / 160 km | Earthquake distance, 10–1000 miles (15–1600 km). |
aqi | 100 (US) / 60 (EU) | Speak up above this air-quality index, or off. scale picks us or eu. |
heat, cold, wind | off | Feels-like temperature above or below, or gusts above, which to speak up about. on uses 100°F / 20°F / 45 mph. Looks six hours ahead. |
chime | 0 | 1 for a soft two-note chime on a new or worsening alert. Silent until the screen has been tapped once. |
demo | — | A sample instead of real data, with no network use: wind, quake, aqi, heat, extreme, stack or offline. |
dim | 0 | Black scrim over everything, 0 to 0.8 (fleet-wide convention). |
All Clear is open source under the MIT licence. Run it yourself with one command. The source opens to the public soon.