Ok... so, what about OWM "triggers" (which OWM calls "alerts"), and its also available to all services - free, included.
We invite you to try our new product - the weather alerts which are based on our meteorological data. Now you can use simple syntax and a few API methods to create triggers which will fire on an occurrence of the selected weather conditions (temperature, humidity, pressure, etc.) in a specified period of time.... If the trigger's conditions are met, our service will generate an alert. In order to receive this alert you need to poll the service with the specified time interval. We plan to add push notifications and new data sources to this product's functionality in the nearest future. Available for both Free and paid subscriptions https://openweathermap.org/triggers -- You received this message because you are subscribed to the Google Groups "weewx-user" group. To unsubscribe from this group and stop receiving emails from it, send an email to weewx-user+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/weewx-user/bfecb0cf-eeca-45e0-be75-350de3189a27%40googlegroups.com.