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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 - Chojnice Distance
Chojnice 2.5 km
Bydgoszcz 77.3 km
Lębork 93.4 km
Szczecinek 96.5 km
Piła 107.5 km
Łeba 111.5 km
Ustka 120.9 km
Gdańsk Lech Wałęsa Airport 125.2 km
Toruń 134.0 km
Poznań 157.1 km
Koszalin 164.4 km
Żuławki 168.0 km
Hel 169.9 km
Koło 201.2 km
Petrobaltic Beta 201.4 km
Kalisz 211.6 km
Elbląg 215.0 km
Kołobrzeg 225.2 km
Leszno 228.6 km
Resko 237.8 km
Zielona Góra 256.4 km
Płock 270.1 km
Gorzów Wielkopolski 271.9 km
Copernicus Airport Wrocław 285.9 km
Wieluń 286.2 km
Łódź 293.1 km
Szczecin-Dąbie Airstrip Airport 295.0 km
Olands Sodra Udde 295.4 km
Legnica 305.8 km
Nexø 309.3 km
Utklippan 316.1 km
Mława 318.0 km
Olsztyn 319.2 km
Opole 329.1 km
Karlskrona 340.2 km
Rønne 344.2 km
Kalmar Airport 346.8 km
Hoburg 347.8 km
Częstochowa 350.1 km
Kaliningrad 350.7 km
Kalmar 351.7 km
Hammerodde/Bornholm 352.3 km
Grambow 354.9 km
Manschnow 356.5 km
Jelenia Góra 357.2 km
Sulejów 357.6 km
Słubice 358.7 km
Coschen 361.7 km
Kłodzko 362.8 km
Świnoujście 369.9 km
Ronneby 373.8 km
Sněžka 374.8 km
Šerák 376.5 km
Warsaw Modlin Airport 376.8 km
Heringsdorf Airport 378.8 km
Sněžka 379.5 km
Polom 382.0 km
Ueckermünde 387.5 km
Hanö 389.4 km
Bad Muskau 390.6 km
Olands Norra Udde 392.9 km
Racibórz 393.4 km
Görlitz 396.6 km
Müncheberg 401.5 km
Katowice-Pyrzowice 401.9 km
Angermünde 402.6 km
Grünow 404.7 km
Skillinge 407.4 km
Greifswalder Oie 409.4 km
Kosta 409.5 km
Warsaw - Okecie 413.1 km
Lindenberg b. Beeskow 414.1 km
Cottbus 414.7 km
Ústí nad Orlicí 414.7 km
Karlshagen 417.5 km
Cervena 417.5 km
Liberec 421.6 km
Heckelberg-Brunow 424.3 km
Oestergarnsholm 426.5 km
Kętrzyn 426.6 km
Visby 429.4 km
Ostrava 430.3 km
Anklam 431.1 km
Bertsdorf-Hörnitz 432.2 km
Luká 435.4 km
Hoyerswerda 439.0 km
Pardubice 441.8 km
Gladhammar 442.5 km
Bielsko-Biała 442.7 km
Klaipėda 445.9 km
Sohland an der Spree 447.7 km
Mikołajki 449.1 km
Lübben - Blumenfelde 450.4 km
Lysá hora 450.6 km
Hultsfred Airport 450.9 km
Ostrołęka 451.8 km
Växjö 452.6 km
Kristianstad Airport 453.1 km
Prostějov 453.7 km
Svratouch 455.0 km