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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.


Najbliższa stacja pogodowa - Chiba Odległość
Shimofusa Airport 19.6 km
Tokyo Heliport 29.3 km
Tokio New, Lotnisko 34.6 km
Port lotniczy Tokio-Haneda 35.5 km
Tokio 37.8 km
Katsu'ura 45.4 km
Jokohama 52.1 km
Tateyama 58.6 km
Tateyama 60.1 km
Ibaraki Airport 60.9 km
Chōfu Airport 64.0 km
Tachikawa Airfield 78.2 km
Mito 78.5 km
Zama Port lotniczy 79.0 km
Zama Port lotniczy 79.0 km
Yokota Air Base 84.5 km
Utsunomiya 85.1 km
Chōshi 86.1 km
Kumagaya 92.5 km
Oshima Airport 107.7 km
Oshima 109.0 km
Nikkō 117.2 km
Chichibu 117.7 km
Ajiro 120.7 km
Shirakawa 131.7 km
Maebashi 133.5 km
Mishima 136.2 km
Fuji 139.4 km
Miyakejima Island 141.1 km
Onahama 146.2 km
Kawaguchiko 148.7 km
Fuji Mountain 154.2 km
Wakamatsu 161.9 km
Irozaki 162.9 km
Kōfu 172.6 km
Karuizawa 183.3 km
Fukushima 188.6 km
Shizuoka 196.6 km
Shizuhama Air Base 211.3 km
Hachijō-jima 214.5 km
Shimada Port lotniczy 223.2 km
Suwa 224.0 km
Omaezaki 225.9 km
Niigata Port lotniczy 228.0 km
Yamagata 228.4 km
Niigata 228.5 km
Nagano 229.8 km
Port lotniczy Sendai 236.6 km
Takada 241.6 km
Yamagata Port lotniczy 242.5 km
Matsumoto 243.7 km
Sendai 245.7 km
Port lotniczy Matsumoto 247.0 km
Iida 252.4 km
Shinjō 270.5 km
Hamamatsu 275.8 km
Shōnai 275.9 km
Ishinomaki 278.2 km
Sakata 282.7 km
Aikawa 291.1 km
Takayama 320.6 km
Toyama 335.7 km
Toyama Port lotniczy 335.8 km
Akita Port lotniczy 343.5 km
Irako 344.4 km
Port lotniczy Hanamaki 349.0 km
Ōfunato 349.4 km
Nagoja 350.7 km
Akita 351.5 km
Fushiki 353.1 km
Gifu Air Field 360.0 km
Gifu 371.4 km
Port lotniczy Chūbu 371.9 km
Morioka 372.1 km
Noto Airport 376.8 km
Wajima 386.0 km
Akeno Air Field 391.8 km
Kanazawa 394.5 km
Yokkaichi 395.4 km
Tsu 405.3 km
Miyako 407.4 km
Komatsu Port lotniczy 416.3 km
Hikone 429.5 km
Fukui 432.0 km
Ueno 445.1 km
Tsuruga 449.0 km
Owase 452.4 km