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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.


Estaciones meteorológicas cercanas - Fortaleza Distancia
Fortaleza Aeropuerto 0.0 km
Fortaleza 1.5 km
Guaramiranga 60.7 km
Morada Nova 119.6 km
Jaguaruana 121.7 km
Quixeramobim 149.5 km
Mossoro/17 Rosado 179.8 km
Acaraú 182.1 km
Jaguaribe 185.0 km
Sobral 201.8 km
Sobral 202.4 km
Iguatu 240.8 km
Crateús 266.7 km
Tauá 273.4 km
Taua 283.2 km
Barbalha 315.5 km
Patos 317.1 km
Barbalha 318.2 km
Patos 321.7 km
Campos Sales 348.8 km
Santa Cruz 353.0 km
Castelo do Piauí 357.4 km
Ouricuri 364.0 km
Serra Talhada 364.7 km
Parnaíba Aeropuerto 365.6 km
Parnaíba 366.8 km
Monteiro 394.0 km
Cabaceiras 411.8 km
Natal/Augusto Sever aeropuerto 411.9 km
Natal 413.5 km
Campina Grande 422.7 km
Campina Grande aeropuerto 423.8 km
Picos 425.1 km
Picos 431.5 km
Camaratuba 454.5 km
Surubim 472.0 km
Preguicas 475.4 km
Oeiras 484.8 km
Teresina aeropuerto 488.6 km
Presidente Castro Pinto aeropuerto 499.1 km
São Pedro do Piauí 499.3 km
João Pessoa 507.8 km