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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.


Estaciones meteorológicas cercanas - Oyama Distancia
Utsunomiya 22.5 km
Kumagaya 48.1 km
Shimofusa aeropuerto 48.8 km
Nikkō 49.7 km
Tokio 52.6 km
Tokyo Heliport 56.6 km
Chōfu aeropuerto 61.3 km
Haneda aeropuerto 63.8 km
Tachikawa Airfield 66.7 km
Chiba 68.4 km
Base Aérea de Yokota 68.4 km
Ibaraki aeropuerto 69.2 km
Mito 74.6 km
Yokohama 75.5 km
Tokio New aeropuerto 79.3 km
Zama Aeropuerto 80.6 km
Zama Aeropuerto 80.6 km
Maebashi 82.1 km
Chichibu 84.2 km
Shirakawa 84.9 km
Wakamatsu 101.5 km
Tateyama 111.7 km
Tateyama 112.2 km
Katsuura 113.8 km
Chōshi 128.3 km
Ajiro 131.3 km
Fuji 133.0 km
Kawaguchiko 133.4 km
Onahama 134.5 km
Oshima aeropuerto 137.6 km
Mishima 138.9 km
Karuizawa 139.2 km
Oshima 139.9 km
Fuji Mountain 143.4 km
Fukushima 144.4 km
Kōfu 149.0 km
Niigata Aeropuerto 159.7 km
Niigata 160.2 km
Yamagata 177.4 km
Irozaki 178.3 km
Nagano 180.8 km
Takada 185.2 km
Miyakejima Island 187.3 km
Suwa 188.6 km
Yamagata Aeropuerto 191.2 km
Shizuoka 192.0 km
Sendai aeropuerto 201.5 km
Matsumoto 204.1 km
Sendai 208.3 km
Shizuhama Air Base 208.8 km
Matsumoto aeropuerto 209.3 km
Shōnai 213.6 km
Shinjō 216.9 km
Shimada Aeropuerto 219.3 km
Sakata 221.2 km
Aikawa 226.4 km
Omaezaki 226.9 km
Iida 228.6 km
Ishinomaki 248.0 km
Hamamatsu 267.8 km
Hachijōjima 270.6 km
Takayama 284.1 km
Akita Aeropuerto 286.6 km
Toyama 291.3 km
Toyama Aeropuerto 292.3 km
Akita 293.0 km
Hanamaki aeropuerto 307.0 km
Fushiki 308.2 km
Ōfunato 320.0 km
Noto aeropuerto 326.6 km
Morioka 329.0 km
Nagoya 329.2 km
Irako 331.9 km
Gifu Air Field 334.8 km
Wajima 335.2 km
Odate- Noshiro aeropuerto 338.3 km
Gifu 345.8 km
Kanazawa 353.3 km
Chūbu Centrair aeropuerto 354.2 km
Fukaura 370.5 km
Yokkaichi 375.6 km
Miyako 376.6 km
Komatsu Aeropuerto 377.7 km
Akeno Air Field 377.8 km
Tsu 387.9 km
Aomori aeropuerto 392.4 km
Fukui 397.6 km
Aomori 401.4 km
Hikone 404.3 km
JMSDF Hachinohe Air Base 410.2 km
Hachinohe 412.4 km
Misawa 416.6 km
Tsuruga 419.0 km
Ueno 425.6 km
Owase 441.2 km
Nara 461.2 km
Kioto 464.9 km
Yao Aeropuerto 488.0 km
Osaka 495.0 km
Osaka aeropuerto 500.0 km