Please let's stop using the term "weather service" when we're talking about "weather apps. They're different things. The term "weather service" usually refers to the official government (national or regional) source for weather forecasts and current or past observations. Virtually all "weather apps" get their information directly from either official national or regional weather services, or from third party intermediary providers who get the information from the official sources and package and/or interpret it for use by weather apps. The primary advantage of weather apps is the way they present the information. However the direct government sources usually are the most accurate and fastest at showing forecasts and warnings of severe weather.
Here in the U.S., weather.gov is the primary site for information from the U.S. National Weather Service (NWS).
In Australia: the Bureau of Meteorology (BOM) site is bom.gov.au.
In the U.K.: the Met Office site is www.metoffice.gov.uk
However it's different in different countries. European countries get together to fund the European Center For Medium-Range Weather Forecasts (ECMWF). With national weather services using that information tailored to their specific national requirements
Finally: the term "Weather Enterprise" has been developed and used in the U.S for quite a few years now to recognize that weather forecasting is a partnership of those supplying observations, maintaining archives of historical weather related information, conducting research to advance the science, official government government analysis, forecast and warning organizations, and private sector services who compete to package the information from the government and other sources to satisfy the needs and preferences of the many consumers of weather information. It's been found in the U.S., that the collaborations of the Weather Enterprise provide the most effective way to get timely information to weather consumers based on the best science and systems.
Clearly, with so many weather apps, TV, radio, and social media weather providers, there will be some who do it better than others and some not so good. But be aware that what comes from national weather services is generally the best in terms of timeliness, accuracy, use of the best science, and is the official government source. With respect to weather apps, there are many choices depending on where in the world you live. Look at several apps, ignore any marketing hype, choose one or two that suit you best, and include links to official government sites.
Here in the U.S., weather.gov is the primary site for information from the U.S. National Weather Service (NWS).
In Australia: the Bureau of Meteorology (BOM) site is bom.gov.au.
In the U.K.: the Met Office site is www.metoffice.gov.uk
However it's different in different countries. European countries get together to fund the European Center For Medium-Range Weather Forecasts (ECMWF). With national weather services using that information tailored to their specific national requirements
Finally: the term "Weather Enterprise" has been developed and used in the U.S for quite a few years now to recognize that weather forecasting is a partnership of those supplying observations, maintaining archives of historical weather related information, conducting research to advance the science, official government government analysis, forecast and warning organizations, and private sector services who compete to package the information from the government and other sources to satisfy the needs and preferences of the many consumers of weather information. It's been found in the U.S., that the collaborations of the Weather Enterprise provide the most effective way to get timely information to weather consumers based on the best science and systems.
Clearly, with so many weather apps, TV, radio, and social media weather providers, there will be some who do it better than others and some not so good. But be aware that what comes from national weather services is generally the best in terms of timeliness, accuracy, use of the best science, and is the official government source. With respect to weather apps, there are many choices depending on where in the world you live. Look at several apps, ignore any marketing hype, choose one or two that suit you best, and include links to official government sites.