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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.


Nearby Weather Stations - Ptolemaida Distance
Kozani 25.0 km
Florina 41.9 km
Kastoria Airport 45.1 km
Bitola 65.5 km
Prilep 85.5 km
Korçë 102.6 km
Gevgelija 111.9 km
Demir Kapija 112.3 km
Ohrid Airport 113.9 km
Ohrid St. Paul AP 116.4 km
Larissa National Airport 122.4 km
Ioannina 129.8 km
Štip 139.0 km
Thessaloniki Airport 142.9 km
Skopje-Petrovec 150.1 km
Lazaropole 152.0 km
Pozharane 165.5 km
Tetovo 173.8 km
Gjirokastër 176.5 km
Berovo 179.3 km
Nea Anchialos Airport 182.1 km
Peshkopi 184.5 km
Elbasan 186.2 km
Kriva Palanka 188.2 km
Lamia 188.8 km
Preveza 194.9 km
Sarandë 198.7 km
Kuçovë 200.7 km
Sandanski 205.8 km
Kukës 211.4 km
Vranje 211.8 km
Serres 217.1 km
Corfu 217.8 km
Pristina Airport 225.5 km
Yzberish 226.2 km
Tirana 228.0 km
Skiathos 244.3 km
Vlorë 245.0 km
Patras Araxos Airport 246.8 km
Leskovac 256.6 km
Durrës 261.7 km
Sazan 267.2 km
Musala 272.1 km
Andravida 273.0 km
Cephalonia Airport 281.9 km
Dimitrovgrad 283.7 km
Sofia 289.7 km
Shkodër 290.3 km
Niš 292.1 km
Zakynthos Airport 300.5 km
Kopaonik Mountain 303.4 km
Tanagra Airport 305.8 km
Tripoli Airport 318.0 km
Kruševac 318.0 km
Mourgash 324.6 km
Elefsina Airport 326.4 km
Kavala/Chrisoupolis 328.2 km
Podgorica 332.6 km
Bar 333.3 km
Podgorica 335.4 km
Tatoi Palace 340.3 km
Sjenica 343.4 km
Skyros Airport 349.8 km
Elliniko Airport 352.5 km
Ćuprija 355.4 km
Kalamata 358.4 km
Morava Airport 363.8 km
El Venizelos 364.7 km
Athens Airport 365.9 km
Crni Vrh Mountain 373.2 km
Kragujevac 374.1 km
Santa Maria di Leuca 379.2 km
Plovdiv 379.3 km
Vidin 380.0 km
Methoni 381.0 km
Tivat 382.8 km
Calafat 383.8 km
Nikšić 384.4 km
Požega 390.8 km
Pljevlja 393.3 km
Lecce 394.4 km
Negotin 395.2 km
Lemnos Airport 399.9 km
Zlatibor 400.1 km
Băileşti 405.1 km
Smederevska Palanka 407.5 km
Brindisi/Casale 415.8 km
Bechet 419.7 km
Kardzhali 426.0 km
Lovech 430.9 km
Moldova Nouă 435.2 km
Dubrovnik Airport 436.1 km
Drobeta-Turnu Severin 436.5 km
Bâcleş 437.5 km
Veliko Gradište 438.5 km
Valjevo 441.6 km
Bozovici 456.4 km
Băile Herculane 457.6 km
Dubrovnik 458.3 km
Craiova 459.5 km