[APP][Pro][Cloud] KNMI

[Amersfoort]

Weerlive v2 api says “Today 0% rain chance in Hoogland, Netherlands” (see below). That’s why Homey-KNMI says the same.

The Weerlive site itself says:

, and Buienradar and Buienalarm and Accuweather: 100% rain.

I have seen this multiple times, so the Homey-KNMI app is not to blame. Is the Weerlive api a reliable source for the Homey-KNMI app? I don’t think so, based on multiple observations with rain data.

“liveweer”: [{“plaats”: “Hoogland”, “timestamp”: 1727691484, “time”: “30-09-2024 12:18:04”, “temp”: 12.1, “gtemp”: 8.9, “samenv”: “Licht bewolkt”, “lv”: 76, “windr”: “ZO”, “windrgr”: 130.7, “windms”: 5.46, “windbft”: 3, “windknp”: 10.6, “windkmh”: 19.7, “luchtd”: 1009.83, “ldmmhg”: 757, “dauwp”: 8.2, “zicht”: 42600, “gr”: 88, “verw”: “Vandaag en morgen veel regen en wind”, “sup”: “07:37”, “sunder”: “19:20”, “image”: “lichtbewolkt”, “alarm”: 0, “lkop”: “In de nacht naar dinsdag en dinsdagochtend in het westelijk kustgebied kans op zware windstoten”, “ltekst”: " Voor vandaag geldt nog geen waarschuwing.In de nacht naar dinsdag en dinsdagochtend zijn in de kustgebieden van Zeeland en Zuid-Holland zware windstoten mogelijk. Plaatselijk is er kans op schade door het afbreken van takken en omwaaien van voorwerpen. De windstoten zijn, zeker in combinatie met regen, hinderlijk voor het verkeer. In de loop van dinsdagochtend neemt de wind geleidelijk af en verdwijnen de zware windstoten.Wat kan ik verwachten en wat kan ik doen?Meer detailsDe windstoten hebben een snelheid van 75-90 km/u en komen uit een zuidwestelijke richting. De windstoten beperken zich tot de kustgebieden. Wat verder landinwaarts worden windstoten van 60-70 km/uur verwacht.", “wrschklr”: “groen”, “wrsch_g”: “-”, “wrsch_gts”: 0, “wrsch_gc”: “-”}], “wk_verw”:[{“dag”:“30-09-2024”,“image”:“halfbewolkt”,“max_temp”:14,“min_temp”:12,“windbft”:5,“windkmh”:28,“windknp”:16,“windms”:8,“windrgr”:178,“windr”:“Z”,“neersl_perc_dag”:0,“zond_perc_dag”:21},{“dag”:“01-10-2024”,“image”:“regen”,“max_temp”:15,“min_temp”:12,“windbft”:5,“windkmh”:32,“windknp”:17,“windms”:9,“windrgr”:219,“windr”:“ZW”,“neersl_perc_dag”:70,“zond_perc_dag”:19},{

@LRvdLinden Please contact the Weerlive api makers in order to correct this ongoing bug.

Edit: The same Weerlive api says this in the hourly forecast about rain for the rest of today:

“uur_verw”:[{“uur”:“30-09-2024 12:00”,“timestamp”:1727690400,“image”:“bewolkt”,“temp”:12,“windbft”:4,“windkmh”:21,“windknp”:12,“windms”:6,“windrgr”:132,“windr”:“ZO”,“neersl”:0,“gr”:50},{“uur”:“30-09-2024 13:00”,“timestamp”:1727694000,“image”:“regen”,“temp”:12,“windbft”:4,“windkmh”:21,“windknp”:12,“windms”:6,“windrgr”:131,“windr”:“ZO”,"neersl":0.2,“gr”:47},{“uur”:“30-09-2024 14:00”,“timestamp”:1727697600,“image”:“regen”,“temp”:11,“windbft”:4,“windkmh”:21,“windknp”:12,“windms”:6,“windrgr”:131,“windr”:“ZO”,“neersl”:1.8,“gr”:8},{“uur”:“30-09-2024 15:00”,“timestamp”:1727701200,“image”:“regen”,“temp”:11,“windbft”:4,“windkmh”:21,“windknp”:12,“windms”:6,“windrgr”:138,“windr”:“ZO”,“neersl”:0.5,“gr”:8},{“uur”:“30-09-2024 16:00”,“timestamp”:1727704800,“image”:“regen”,“temp”:11,“windbft”:4,“windkmh”:21,“windknp”:12,“windms”:6,“windrgr”:145,“windr”:“ZO”,“neersl”:1.5,“gr”:3},{“uur”:“30-09-2024 17:00”,“timestamp”:1727708400,“image”:“regen”,“temp”:12,“windbft”:4,“windkmh”:21,“windknp”:12,“windms”:6,“windrgr”:152,“windr”:“ZO”,“neersl”:2.3,“gr”:6},{“uur”:“30-09-2024 18:00”,“timestamp”:1727712000,“image”:“regen”,“temp”:13,“windbft”:4,“windkmh”:25,“windknp”:14,“windms”:7,“windrgr”:164,“windr”:“ZO”,“neersl”:1.5,“gr”:0},{“uur”:“30-09-2024 19:00”,“timestamp”:1727715600,“image”:“regen”,“temp”:13,“windbft”:4,“windkmh”:21,“windknp”:12,“windms”:6,“windrgr”:187,“windr”:“Z”,“neersl”:1.8,“gr”:0},{“uur”:“30-09-2024 20:00”,“timestamp”:1727719200,“image”:“regen”,“temp”:14,“windbft”:4,“windkmh”:21,“windknp”:12,“windms”:6,“windrgr”:199,“windr”:“Z”,“neersl”:0.4,“gr”:0},{“uur”:“30-09-2024 21:00”,“timestamp”:1727722800,“image”:“bewolkt”,“temp”:14,“windbft”:3,“windkmh”:18,“windknp”:10,“windms”:5,“windrgr”:195,“windr”:“Z”,“neersl”:0,“gr”:0},{“uur”:“30-09-2024 22:00”,“timestamp”:1727726400,“image”:“regen”,“temp”:14,“windbft”:4,“windkmh”:21,“windknp”:12,“windms”:6,“windrgr”:200,“windr”:“Z”,“neersl”:0.1,“gr”:0},{“uur”:“30-09-2024 23:00”,“timestamp”:1727730000,“image”:“regen”,“temp”:14,“windbft”:4,“windkmh”:21,“windknp”:12,“windms”:6,“windrgr”:196,“windr”:“Z”,“neersl”:0.1,“gr”:0},{“uur”:"01-10-2024

[Theo_de_Koning]

100% chance of rain is not that it’s 24h raining.
It means that the chance of rain on that day is 100%.
That can be a very short time or a long time.

[Peter_van_Werkhoven]

Hi there,

can someone explain to me how i implement in my flow if it’s going to rain in the next hour so my sunscreens are going up, see screendump of my flow so far.

Best regards Peter.

[sschot]

I think it is more usefull to start this function in an advanced flow, there you do have much more possibilities to connect actions and states with a result.

If it is possible in a standard flow, I am not sure about that

[Peter_van_Werkhoven]

Hi Sschot,

Thanks for your quick replay, and I’ve got advanced flows it came with my new secondhand Homey but i didn’t use the function yet, maybe you or someone else can explain to me how ??

Thanks again and best regards Peter.

[sschot]

Fully different situation. But
When bewegingsmelder uit → 2 conditions true → licht uit
When helderheid is groter dan → licht uit
When nachtalarm uit → licht uit

I think you can rebuild your existing and add the function you prefer

[Amersfoort]

Try the Homey Buienalarm app with lot of IF functions. As far as I know, the KNMI app does not have similar options.

[Amersfoort]

I only say, that the Weerlive data is inconsistant and incorrect regarding the rain chance: telling the rain chance for today is 0% (parameter “neersl_perc_dag”), but the same api data shows rain (“neersl”) > 0 for the afternoon on the same day, and the api text for today says “Today a lot of rain”.

[Ronald_N]

Hi there,

Is there any chance of adding the “stookwijzer” / stookalart” data from
kNMI as a trigger?

Stookwijzer | Atlas Leefomgeving

[Peter_van_Werkhoven]

Hi Amersfoort,

Thanks for your suggestion, I’ve been using that all the time, but because of Memory issues/shortage I’m want to minimize my amount of installed apps.
I used this KNMI app for the rest of my weather data, but I don’t know how to implement the rain data, that’s why.

Thanks for your contribution and brainstorming with me.
Best regards Peter.

[Peter_van_Werkhoven]

Hi Steven,

Thanks for your advanced flow explanation, but I still don’t know how to make a flow to get the rainfall prediction data and add that into an advanced flow.

Best regards Peter.

[Amersfoort]

The Homey 2023 has 2 GB memory and 2.66 GB storage + some swap memory; enough for a lot of apps. Are you using Homey 2019?

[sschot]

I do not have all your VAR, but you can easy rebuild your flow and add triggers that go to a certain action within the advanced flow

[Peter_van_Werkhoven]

Hi Amersfoort,

Yes I have a HP2019.

Best regards Peter.

[Peter_van_Werkhoven]

Hi Steven,

If the option “Rain next hour” was available on a Card here @ KNMI then I could manage but there isn’t one.

But thanks for your contribution.
Best regards Peter.