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What are the sources for WeatherOnline forecasts?


The WeatherOnline forecasts are created by using a MOS system developed in-house with the most current US weather services model data (GFS). The statistical methods of the Model-Output-Statistic (MOS)-System were developed in cooperation with the Meteorological Department of the University of Bonn.

What is a MOS-System?


A Model-Output-Statistic (MOS)-System combines the data of the weather forecast model and the locally recorded data for any given point by transforming the model data from a coarse grid to detailed small scale areas.
In order to do so, one needs a large volume of past model forecast data as well as the corresponding recorded data for any given location. The MOS-System relates these two sets of data in an optimized fashion allowing development of the local weather forecast by using the most current model forecast.

What are the time intervals used in the temperature and icons of the local forecasts?


The forecasted maximum temperature always refers to a 12hour window from 6am to 6om local time.
The forecasted minimum temperature always refers to the 12hour window from 6pm of the day before the forecast day to 6 am of the forecast day.
The weather icon for the morning refers to the time between 6am and 12pm local time, the icon for the afternoon is valid from 12am to 6pm local time and the evening icon refers to the time from 6pm to 12am local time.

How often are the current weather conditions and forecasts updated?


The current weather information as well as the satellite images are updated every 30 minutes whereas the radar images are being updated every 15 minutes.
The local weather forecasts as well as the weather charts are updated 8 times a day. The updates start at 2 am CEST or 3 am CEST depending on daylight saving time and continue on a three hourly bases.


Estações Meteorológicas Próximas - Pedras Negras Distância
Pontevedra 33.5 km
Vigo/Peinador 40.7 km
Santiago de Compostela 61.7 km
Aeroporto de Santiago-Rosalía de Castro 74.1 km
Viana do Castelo 90.8 km
Corunha 115.2 km
Ourense 117.6 km
Porto/Pedras Rubras 136.3 km
Ovar Aeroporto 171.5 km
Ovar 171.6 km
Lugo/Rozas 178.0 km
Vila Real Airport 186.0 km
Viseu Airport 222.9 km
Bragança 253.4 km
Coimbra 258.0 km
Ponferrada 259.9 km
Penhas Douradas 270.8 km
Puerto Leitariegos 285.0 km
Monte Real 287.8 km
Vitigudino 317.4 km
Castelo Branco 329.5 km
Asturias/Aviles 343.2 km
Oviedo 353.8 km
Leão 363.9 km
Benavente 365.0 km
Samora 369.0 km
Coria/Tabacoa 376.5 km
Gijón 378.4 km
Portalegre 386.8 km
Alverca do Ribatejo 392.4 km
Puerto de san Isidro 400.1 km
Base Aérea de Sintra 400.5 km
Aeroporto Humberto Delgado 404.1 km
Lisboa 405.7 km
Lisboa/Geof 411.3 km
Plasencia 412.1 km
Montijo 412.5 km
Salamanca 414.8 km
La Hoya 427.2 km
Cáceres 437.1 km
Évora 445.9 km
Aeroporto de Badajoz 457.5 km
Valladolid Airport 459.9 km
Valladolid 470.4 km
Base Aérea de Beja 495.4 km
Beja 501.1 km
Ávila 511.5 km
Segóvia 559.5 km
Navacerrada 575.8 km
Hinojosa del Duque 606.4 km
Toledo 611.6 km
Andújar 729.2 km

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