World

South America



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.


Nearby Weather Stations - Valença do Piauí Distance
Picos 63.3 km
Oeiras 67.2 km
Picos 68.0 km
Castelo do Piauí 89.6 km
São Pedro do Piauí 116.4 km
Floriano 146.3 km
Floriano 146.3 km
Taua 150.1 km
Crateús 155.0 km
Teresina Airport 163.1 km
Campos Sales 163.3 km
Tauá 164.5 km
São João do Piauí 172.6 km
São João do Piauí 173.8 km
Ouricuri 213.1 km
Caxias 218.8 km
Caxias 220.3 km
Sobral 269.8 km
Remanso 270.8 km
Petrolina 271.7 km
Remanso 272.3 km
Sobral 272.9 km
Iguatu 274.2 km
Parnaíba 275.2 km
Colinas 279.8 km
Barbalha 280.4 km
Petrolina 281.4 km
Chapadinha 281.7 km
Barbalha 284.9 km
Petrolina 287.5 km
Parnaíba Airport 287.9 km
Quixeramobim 288.8 km
Urucui 304.0 km
Cabrobó 323.5 km
Acaraú 330.0 km
Preguicas 330.7 km
Delfino 344.6 km
Jaguaribe 348.1 km
Guaramiranga 360.2 km
Bom Jesus 362.7 km
Bacabal 381.0 km
Bacabal 382.4 km
Uauá 383.4 km
Senhor do Bonfim 384.4 km
Morada Nova 390.6 km
Barra do Corda 396.4 km
Barra do Corda 399.7 km
Serra Talhada 405.5 km
Buritirama 414.2 km
Sao Luis/Marechal AP 415.1 km
São Luís Airport 416.0 km
São Luís 418.1 km
Fortaleza 418.6 km
Fortaleza Airport 419.3 km
Queimadas 454.2 km
Jaguaruana 461.1 km
Euclides da Cunha 465.5 km
Paulo Afonso Airport 468.4 km
Ibimirim 483.3 km
Gilbués 491.0 km
Mossoro/17 Rosado 496.6 km
Patos 500.2 km
Patos 500.2 km
Alto Parnaíba 516.0 km
Monteiro 529.2 km
Arcoverde 546.8 km
Poço Verde 548.5 km
Pão de Açúcar 558.3 km
Carira 561.2 km
Aracaju 650.9 km
Aracaju Airport 652.5 km