World

Asia



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 - Koshigaya Distance
Tokyo 17.1 km
Tokyo Heliport 21.9 km
Shimofusa Airport 26.5 km
Haneda Airport 28.3 km
Chōfu Airport 33.6 km
Yokohama 41.0 km
Chiba 42.7 km
Tachikawa Airfield 44.8 km
Yokota Air Base 49.5 km
Kumagaya 49.9 km
Zama Airport 53.5 km
Zama Airport 53.5 km
Utsunomiya 57.5 km
Tokio New (IAP) 67.5 km
Ibaraki Airport 74.8 km
Tateyama 76.4 km
Tateyama 77.1 km
Chichibu 78.4 km
Nikkō 78.7 km
Katsuura 86.3 km
Mito 87.2 km
Maebashi 91.0 km
Ajiro 103.7 km
Oshima Airport 104.5 km
Oshima 106.7 km
Fuji 112.7 km
Mishima 114.7 km
Shirakawa 117.0 km
Kawaguchiko 117.7 km
Chōshi 121.3 km
Fuji Mountain 125.6 km
Wakamatsu 136.9 km
Kōfu 138.5 km
Karuizawa 142.4 km
Irozaki 150.1 km
Miyakejima Island 152.1 km
Onahama 154.3 km
Shizuoka 172.2 km
Fukushima 176.7 km
Suwa 186.1 km
Nagano 188.1 km
Shizuhama Air Base 188.2 km
Niigata 190.3 km
Niigata Airport 190.6 km
Takada 199.0 km
Shimada Airport 199.5 km
Matsumoto 204.6 km
Omaezaki 205.0 km
Matsumoto Airport 208.5 km
Yamagata 211.6 km
Iida 219.2 km
Yamagata Airport 225.6 km
Sendai Airport 231.5 km
Hachijō-jima 235.2 km
Sendai 239.1 km
Shōnai 249.0 km
Aikawa 249.0 km
Hamamatsu 250.5 km
Shinjō 251.7 km
Sakata 256.7 km
Ishinomaki 276.6 km
Takayama 282.9 km
Toyama 295.5 km
Toyama Airport 295.9 km
Fushiki 312.9 km
Irako 317.2 km
Nagoya 319.2 km
Akita Airport 321.9 km
Gifu Air Field 326.9 km
Akita 328.5 km
Noto Airport 335.3 km
Gifu 338.2 km
Hanamaki Airport 339.5 km
Chubu Centrair Intl. Airport 342.3 km
Wajima 344.3 km
Ōfunato 348.7 km
Kanazawa 355.4 km
Morioka 361.9 km
Akeno Air Field 364.0 km
Yokkaichi 364.8 km
Tsu 375.9 km
Komatsu Airport 378.2 km
Fukui 395.4 km
Hikone 396.6 km
Miyako 406.0 km
Tsuruga 414.2 km
Ueno 414.9 km
Owase 426.2 km
Nara 450.7 km
Kyoto 456.5 km
Yao Airport 477.5 km
Osaka 485.1 km
Shionomisaki Lighthouse 490.0 km
Itami Airport 490.8 km
Maizuru 498.5 km
Kobe 517.5 km
Kobe Airport 517.8 km
Kansai Intl. Airport 518.8 km
Nanki 524.6 km
Wakayama 531.4 km

Current weather