random-notes.md

Random notes

• All dates within the system are UTC, they are converted to local times on render. "Start of day" and "End of day" concepts are tricky.

jq -c -Rs '{ html: .}' src/templates/weather.html > .temp-body.json

curl -vv -o render.png \
  -X POST \
  -H "content-type: application/json" \
  -d@.temp-body.json \
  https://europe-west3-kimmo-b.cloudfunctions.net/chromium-render

rm -f .temp-body.json

• https://api.open-meteo.com/v1/forecast?latitude=62.22&longitude=24.8&hourly=temperature_2m,precipitation,weathercode&daily=weathercode&timezone=Europe%2FHelsinki&start_date=2022-10-31&end_date=2022-11-05

• https://www.ilmatieteenlaitos.fi/latauspalvelun-pikaohje

• https://www.ilmatieteenlaitos.fi/tallennetut-kyselyt

All fields for fmi::forecast::harmonie::surface::point::simple

The model can return data up to 50h from now.

{
  "Pressure": 1015.7,
  "GeopHeight": 26.3,
  "Temperature": 6.4,
  "DewPoint": 4.9,
  "Humidity": 92.8,
  "WindDirection": 127,
  "WindSpeedMS": 1.97,
  "WindUMS": -1.37,
  "WindVMS": 1.37,
  "PrecipitationAmount": 0.38,
  "TotalCloudCover": 100,
  "LowCloudCover": 100,
  "MediumCloudCover": 0,
  "HighCloudCover": 58.9,
  "RadiationGlobal": 4.4,
  "RadiationGlobalAccumulation": 682913.3,
  "RadiationNetSurfaceLWAccumulation": -1537350,
  "RadiationNetSurfaceSWAccumulation": 613723.9,
  "RadiationSWAccumulation": 14.2,
  "Visibility": 7441.7,
  "WindGust": 3.6,
  "time": "2022-11-02T07:00:00.000Z",
  "location": {
    "lat": 60.222,
    "lon": 24.83
  }
}

All fields for ecmwf::forecast::surface::point::simple

The model can return data up to 10 days from now.

{
  "GeopHeight": 37.6,
  "Temperature": 5.8,
  "Pressure": 1016,
  "Humidity": 95.7,
  "WindDirection": null,
  "WindSpeedMS": null,
  "WindUMS": -1.8,
  "WindVMS": -0.1,
  "MaximumWind": null,
  "WindGust": null,
  "DewPoint": null,
  "TotalCloudCover": null,
  "WeatherSymbol3": null,
  "LowCloudCover": null,
  "MediumCloudCover": null,
  "HighCloudCover": null,
  "Precipitation1h": 0,
  "PrecipitationAmount": null,
  "RadiationGlobalAccumulation": null,
  "RadiationLWAccumulation": null,
  "RadiationNetSurfaceLWAccumulation": null,
  "RadiationNetSurfaceSWAccumulation": null,
  "RadiationDiffuseAccumulation": null,
  "LandSeaMask": null,
  "time": "2022-11-02T07:00:00.000Z",
  "location": {
    "lat": 2764063,
    "lon": 8449330.5
  }
}

All fields for ecmwf::forecast::surface::point::simple

{
  "GeopHeight": 37.6,
  "Temperature": 5.8,
  "Pressure": 1016,
  "Humidity": 95.7,
  "WindDirection": null,
  "WindSpeedMS": null,
  "WindUMS": -1.8,
  "WindVMS": -0.1,
  "MaximumWind": null,
  "WindGust": null,
  "DewPoint": null,
  "TotalCloudCover": null,
  "WeatherSymbol3": null,
  "LowCloudCover": null,
  "MediumCloudCover": null,
  "HighCloudCover": null,
  "Precipitation1h": 0,
  "PrecipitationAmount": null,
  "RadiationGlobalAccumulation": null,
  "RadiationLWAccumulation": null,
  "RadiationNetSurfaceLWAccumulation": null,
  "RadiationNetSurfaceSWAccumulation": null,
  "RadiationDiffuseAccumulation": null,
  "LandSeaMask": null,
  "time": "2022-11-02T07:00:00.000Z",
  "location": {
    "lat": 2764063,
    "lon": 8449330.5
  }
}

Credits

• Refresh icon: Created by andriwidodo from The Noun Project
• Severi Salminen for inspiration and assets https://github.com/sevesalm/eInk-weather-display