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 - Petrolina Distance
Petrolina 0.0 km
Petrolina 28.0 km
Petrolina 35.2 km
Delfino 100.8 km
Senhor do Bonfim 115.6 km
Remanso 144.2 km
Remanso 146.2 km
Uauá 150.2 km
Jacobina 156.5 km
Jacobina 158.3 km
Ouricuri 178.2 km
Cabrobó 181.6 km
São João do Piauí 182.5 km
São João do Piauí 182.9 km
Queimadas 189.4 km
Campos Sales 200.9 km
Irecê 201.2 km
Picos 205.3 km
Picos 208.6 km
Euclides da Cunha 223.5 km
Macajuba 236.5 km
Barbalha 241.4 km
Barbalha 246.0 km
Oeiras 250.7 km
Itaberaba 271.2 km
Lençóis 274.5 km
Lençóis 274.8 km
Serrinha 277.6 km
Paulo Afonso Airport 287.6 km
Taua 289.1 km
Tauá 290.6 km
Cipó 293.0 km
Barra 296.0 km
Barra 298.6 km
Serra Talhada 304.7 km
Iguatu 306.2 km
Feira de Santana 315.3 km
Poço Verde 321.5 km
Floriano 328.4 km
Floriano 328.4 km
Piatã 333.6 km
Cruz das Almas 334.9 km
Amargosa 335.2 km
Buritirama 336.0 km
Castelo do Piauí 347.3 km
Carira 351.0 km
Ibimirim 352.0 km
Crateús 354.3 km
Ibotirama 355.2 km
São Pedro do Piauí 358.8 km
Itiruçu 359.1 km
Itabaianinha 372.0 km
Pão de Açúcar 374.6 km
Jaguaribe 383.6 km
Valença 385.8 km
Bom Jesus 393.3 km
Quixeramobim 393.6 km
Salvador 401.9 km
Salvador Airport 407.9 km
Conde 411.6 km
Arcoverde 421.8 km
Teresina Airport 423.8 km
Urucui 424.5 km
Monteiro 429.0 km
Bom Jesus da Lapa Airport 433.2 km
Santa Rita de Cássia 435.7 km
Marau 436.6 km
Aracaju Airport 437.7 km
Aracaju 438.0 km
Patos 440.3 km
Patos 443.3 km
Morada Nova 454.6 km
Palmeira Dos Indios 465.3 km
Arapiraca 466.9 km
Colinas 470.7 km
Garanhuns 478.8 km
Garanhuns 481.0 km
Brejo Grande 489.9 km
Coruripe 506.6 km
Barreiras 519.0 km
Barreiras 519.0 km
Mossoro/17 Rosado 525.9 km
Cabaceiras 528.9 km
Correntina 533.6 km
Santa Cruz 598.0 km