How do you enable forecast in Weewx-wdc

[Scott Danville]

I am having difficulty enabling the forecast feature in weewx-wdc

What needs to be included in weewx.conf to have a forecast from WU, AERIS, or NWS?

[gary....@gmail.com]

weewx.conf

Adjust HTML_ROOT to your paths

Use your WU API key

Get your NWS values and use those.

    [[WdcReport]]
        skin = weewx-wdc
        enable = true
        HTML_ROOT = /home/web/wdc
        lang = en

    [[forecast]]
        skin = forecast
        HTML_ROOT = /home/web/forecast

[Forecast]
    data_binding = forecast_binding
    #[[XTide]]
    #    location = "INSERT_LOCATION_HERE (e.g., Boston)"
    [[Zambretti]]
        hemisphere = NORTH
    [[NWS]]
        lid = MAZ011
        foid = BOX
    [[WU]]
        api_key = xxxx
    #[[OWM]]
    #    api_key = INSERT_OWM_API_KEY_HERE
    #[[UKMO]]
    #    api_key = INSERT_UKMO_API_KEY_HERE
    #    location = INSERT_UK_LOCATION_HERE
    #[[Aeris]]
    #    client_id = INSERT_AERIS_CLIENT_ID_HERE
    #    client_secret = INSERT_AERIS_CLIENT_SECRET_HERE
    #[[WWO]]
    #    api_key = INSERT_WWO_API_KEY_HERE
    #[[DS]]
    #    api_key = INSERT_DS_API_KEY_HERE

skin.conf

Make adjustments for your location.

# configuration file for the weewx-wdc skin
SKIN_NAME = Weather Data Center
SKIN_VERSION = 2.1.0

[Extras]
    # Show a link to the GitHub respository of this skin. Set to False to hide.
    github_link = True

    # This radar image would be available as $Extras.radar_img
    #radar_img = https://www.dwd.de/DWD/wetter/radar/radfilm_sac_akt.gif
    # This URL will be used as the image hyperlink:
    #radar_url =    https://www.dwd.de/DE/leistungen/radarbild_film/radarbild_film.html

    [[forecast_zambretti]]
        enable = True
        hemisphere = NORTH                  

    [[forecast_table_settings]]
        source = WU
        num_periods = 72
        num_days = 5
        show_legend = 1
        show_hourly = 0
        show_day = 1
        show_date = 1
        show_outlook = 1
        show_temp = 1
        show_dewpoint = 0
        show_humidity = 0
        show_wind = 1
        show_tides = 0
        show_sun = 0
        show_moon = 0
        show_pop = 1
        show_precip = 1
        show_obvis = 0

[gary....@gmail.com]

Don't forget that you will need to add the following to the skin. conf

[CheetahGenerator]
        search_list_extensions 

user.forecast.ForecastVariables, user.weewx_wdc_forecast.WdcForecastUtil

[David Bätge]

There is also a dedicated page for enabling forecast in the wiki of the skin: https://github.com/Daveiano/weewx-wdc/wiki/Support-for-weewx-forecast

Let me know if there are still questions!

[Nicholas Waton]

Thank you!

Is there a way to show forecasted wind gusts? 

I am using the OWM forecast.

[Graham Eddy]

normal wind, yes. gusts, i am doubtful.

my latest highly customised OWM forecast:

⊣GE⊢

[Dominic Reich]

I think it is possible but not worth the hassle (for non-developers like
me).

The api reports wind gust, so there should be a way to create an
extra row in the forecast_table.inc (and maybe more) files from the
weewx-forecast extension.

#v+
{
"dt": 1705082400,
"main": {
"temp": 267.72,
"feels_like": 264.07,
"temp_min": 267.72,
"temp_max": 267.72,
"pressure": 1034,
"sea_level": 1034,
"grnd_level": 890,
"humidity": 67,
"temp_kf": 0
},
"weather": [
{
"id": 800,
"main": "Clear",
"description": "clear sky",
"icon": "01n"
}
],
"clouds": {
"all": 2
},
"wind": {
"speed": 2.21,
"deg": 198,
"gust": 2.38
},
"visibility": 10000,
"pop": 0,
"sys": {
"pod": "n"
},
"dt_txt": "2024-01-12 18:00:00"
}
#v-

-dominic

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--
Nothing in life is to be feared, it is only to be understood.
Now is the time to understand more, so that we may fear less.
- Marie Curie

[David Bätge]

I just did a quick test run with WeatherUnderground, Aeris and OWM. windGust is only saved for the Aeris forecast entries, for OWM and WU it's always empty. 

Since it is provided via the OWM API, that's a problem of weewx-forecast not saving the data, I guess.

FYI: The skin already shows windGust if it is provided by the forecast - but I did never test this and just noticed the windGust just sits behind the windSpeed without any label. I created https://github.com/Daveiano/weewx-wdc/issues/240 to track this.

windGust is 29 km/h for Do, 11 Jan in this example.

[Nicholas Waton]

Very nice! Thanks for testing this with the other forecasts. I just switched to Aeris and can see the forecasted gusts.

I added a color coding depending on the wind speed to highlight very windy days or forecasted gusts. You can see it running here:
https://status.cal-sailing.org/index.html