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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 - Petrolina Distancia
Petrolina 0.0 km
Petrolina 7.9 km
Petrolina 35.2 km
Senhor do Bonfim 97.5 km
Uauá 116.5 km
Delfino 121.0 km
Cabrobó 150.2 km
Jacobina 152.4 km
Jacobina 154.3 km
Ouricuri 164.5 km
Queimadas 167.1 km
Remanso 179.2 km
Remanso 181.2 km
Euclides da Cunha 192.6 km
Campos Sales 195.8 km
São João do Piauí 214.4 km
São João do Piauí 214.8 km
Barbalha 219.1 km
Picos 219.8 km
Barbalha 223.3 km
Irecê 224.1 km
Picos 224.2 km
Macajuba 232.1 km
Paulo Afonso aeropuerto 252.3 km
Serrinha 254.0 km
Cipó 263.1 km
Itaberaba 266.6 km
Serra Talhada 272.9 km
Oeiras 273.6 km
Lençóis 285.5 km
Lençóis 285.8 km
Tauá 286.3 km
Taua 286.7 km
Iguatu 288.7 km
Poço Verde 289.0 km
Feira de Santana 294.1 km
Carira 317.0 km
Cruz das Almas 317.5 km
Ibimirim 317.7 km
Amargosa 323.7 km
Barra 327.6 km
Barra 330.3 km
Pão de Açúcar 339.5 km
Itabaianinha 340.8 km
Piatã 347.4 km
Itiruçu 354.2 km
Crateús 355.5 km
Floriano 356.0 km
Floriano 356.0 km
Castelo do Piauí 357.8 km
Jaguaribe 363.0 km
Buritirama 369.6 km
Valença 370.8 km
Quixeramobim 380.8 km
Salvador 381.1 km
São Pedro do Piauí 381.3 km
Conde 382.0 km
Ibotirama 382.9 km
Salvador Aeropuerto 385.6 km
Arcoverde 387.4 km
Monteiro 395.6 km
Aracaju Aeropuerto 404.5 km
Aracaju 404.7 km
Patos 409.4 km
Patos 412.6 km
Marau 422.2 km
Bom Jesus 428.5 km
Palmeira Dos Indios 430.0 km
Arapiraca 431.7 km
Morada Nova 435.2 km
Garanhuns 443.7 km
Teresina aeropuerto 444.2 km
Garanhuns 445.9 km
Brejo Grande 455.4 km
Urucui 457.5 km
Bom Jesus da Lapa aeropuerto 458.1 km
Santa Rita de Cássia 469.5 km
Coruripe 471.7 km
Cabaceiras 495.7 km
Colinas 500.1 km
Mossoro/17 Rosado 501.5 km
Barreiras 551.2 km
Barreiras 551.2 km
Correntina 562.6 km
Santa Cruz 567.3 km