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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 - Nerva Distância
Huelva 62.5 km
Dos Hermanas Aeroporto 73.3 km
Sevilha 77.8 km
Jerez de la Frontera 117.2 km
Rota 117.9 km
Morón de la Frontera 118.8 km
Cádis 132.0 km
Aeroporto de Badajoz 134.6 km
San Fernando 141.4 km
Beja 152.8 km
Base Aérea de Beja 159.2 km
Faro 176.5 km
Évora 177.8 km
Hinojosa del Duque 181.8 km
Córdova 188.5 km
Cáceres 196.7 km
Portalegre 200.7 km
Tarifa 215.0 km
Gibraltar 216.3 km
Tangier/Boukhalf Airport 228.8 km
Ceuta 241.0 km
Coria/Tabacoa 254.8 km
Aeroporto de Málaga-Costa del Sol 255.3 km
Castelo Branco 258.3 km
Sines/Montes Chaos 261.2 km
Plasencia 264.0 km
Sania Ramel Airport 268.9 km
Andújar 276.8 km
Sagres 279.9 km
Larache 282.0 km
Montijo 299.4 km
Jaén 303.6 km
Alverca do Ribatejo 307.4 km
La Hoya 308.5 km
Xexuão 311.1 km
Lisboa 311.8 km
Granada Aeroporto 312.0 km
Lisboa/Geof 312.1 km
Aeroporto Humberto Delgado 313.3 km
Penhas Douradas 320.8 km
Cidade Real 324.2 km
Base Aérea de Sintra 336.3 km
Almagro Aeroporto 340.4 km
Coimbra 345.6 km
Monte Real 351.9 km
Viseu Airport 365.5 km
Toledo 367.4 km
Vitigudino 368.3 km
Salamanca 377.7 km
Ávila 387.4 km
Rabat/Sale Airport 404.4 km
Cherif Al Idrissi Airport 408.7 km
Vila Real Airport 416.2 km
Ovar 425.0 km
Getafe Air Base 425.4 km
Ovar Aeroporto 425.7 km
Madrid- Cuatro Vientos Airport 426.0 km
Samora 431.7 km
Madrid , University 436.9 km
Meknes/Bassatine Airport 436.9 km
Madrid , Retiro 437.5 km
Navacerrada 441.9 km
Segóvia 449.6 km
Aeroporto de Fez-Saïss 451.4 km
Madrid/Barajas 451.6 km
Colmenar Viejo Aeroporto 451.8 km
Bragança 453.9 km
Porto/Pedras Rubras 457.4 km
Madrid- Torrejón Airport 461.6 km
Almeria Aeroporto 473.1 km
Casablanca Aeroporto 473.7 km
Taza Aeroporto 478.1 km
Valladolid 479.7 km
Melilha 480.6 km
Valladolid Airport 481.6 km
Nador Intl. Airport 492.5 km
Nouaceur Aeroporto 492.8 km
Guadalaxara 496.3 km
Viana do Castelo 501.9 km
Cuenca 555.8 km
Sória 639.2 km