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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 - Bacabal Distancia
Bacabal 1.3 km
Bacabal 1.5 km
Barra do Corda 112.2 km
Barra do Corda 113.3 km
Sao Luis/Marechal aeropuerto 143.4 km
São Luís Aeropuerto 144.4 km
São Luís 149.6 km
Colinas 155.5 km
Chapadinha 164.1 km
Caxias 167.0 km
Caxias 167.4 km
Turiaçu 209.3 km
Turiaçu 212.5 km
Teresina aeropuerto 228.5 km
Urucui 261.7 km
Preguicas 266.1 km
São Pedro do Piauí 266.5 km
Floriano 282.8 km
Floriano 282.8 km
Paragominas 300.2 km
Imperatriz 314.9 km
Imperatriz Aeropuerto 318.6 km
Bragança 332.8 km
Tracuateua (Braganca) 341.9 km
Parnaíba 347.0 km
Estreito 347.7 km
Parnaíba Aeropuerto 354.1 km
Oeiras 367.6 km
Castelo do Piauí 375.3 km
Carolina aeropuerto 381.3 km
Carolina 382.2 km
Carolina 382.6 km
Araguatins 386.0 km
Salinópolis 399.5 km
Salinópolis 402.1 km
Tome-acu 417.6 km
Castanhal 418.0 km
Picos 433.4 km
São João do Piauí 435.8 km
São João do Piauí 436.6 km
Picos 441.2 km
Araguaína 445.9 km
Belém 460.5 km
Crateús 464.3 km
Belém Aeropuerto 465.9 km
Soure 490.8 km
Sobral 495.4 km
Sobral 495.6 km
Soure 497.9 km
Taua 507.2 km
Tauá 522.0 km
Pedro Afonso 523.7 km
Pedro Afonso 524.1 km
Acaraú 530.7 km
Campos Sales 544.4 km
Ouricuri 594.7 km