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ECMWF aims to provide accurate medium-range global weather forecasts out to 15 days and seasonal forecasts out to 12 months. [11] Its products are provided to the national weather services of its member states and co-operating states as a complement to their national short-range and climatological activities, and those national states use ECMWF's products for their own national duties, in ...
What is now IPMA was originally created in 1946 as the National Meteorological Service (Serviço Metereológico Nacional, SMN), which centralized the functions of the previous existing meteorological sectorial services (Civil Aviation, Army, Military Aeronautics, Navy and Agriculture) as well as the Azores regional meteorological service and part of the university meteorological institutes. [1]
In 2015, Google chose OpenWeatherMap as a weather data provider for its bid-by-weather script in Google Ads, which serves the ads based on the local weather conditions, such as temperature, humidity, and cloudiness. [3] In the same year, Google published documentation on how to use OpenWeather data to display weather conditions on Google Maps. [4]
An optional weather widget at the top of the main view could be configured to show weather based on the current location, or a location set manually. [3] [4] The iOS version of Google News & Weather was released on October 7, 2014. [2] The app was discontinued on October 8, 2018.
Microsoft's Aurora system offers global 10-day weather and 5-day air pollution (CO 2, NO, NO 2, SO 2, O 3, and particulates) forecasts with claimed accuracy similar to physics-based models, but at orders-of-magnitude lower cost. Aurora was trained on more than a million hours of data from six weather/climate models. [83] [84]
A weather map, also known as synoptic weather chart, displays various meteorological features across a particular area at a particular point in time and has various symbols which all have specific meanings. [1] Such maps have been in use since the mid-19th century and are used for research and weather forecasting purposes.
The first BBC weather forecast was a shipping forecast, broadcast on the radio on behalf of the Met Office on 14 November 1922, and the first daily weather forecast was broadcast on 26 March 1923. In 1936, the BBC experimented with the world's first televised weather maps, brought into practice in 1949 after World War II. The map filled the ...
Locations where temperature has fell at or under −12.0 °C (10.4 °F) Both Penhas da Saúde and Miranda do Douro hold the record for the lowest temperature recorded in Portugal, −16.0 °C (3.2 °F)