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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.


Poblíž povětrnostní stanice - Ojama Vzdálenost
Ucunomija 22.5 km
Kumagaja 48.1 km
Shimofusa (Letiště) 48.8 km
Nikkó 49.7 km
Tokio 52.6 km
Tokyo Heliport 56.6 km
Chōfu (Letiště) 61.3 km
Letiště Haneda 63.8 km
Tachikawa Airfield 66.7 km
Čiba 68.4 km
Yokota Air Base 68.4 km
Ibaraki (Letiště) 69.2 km
Mito 74.6 km
Jokohama 75.5 km
Tokio New Intl. Airport 79.3 km
Zama Letiště 80.6 km
Zama Letiště 80.6 km
Maebaši 82.1 km
Chichibu 84.2 km
Shirakawa 84.9 km
Wakamatsu 101.5 km
Tatejama 111.7 km
Tatejama 112.2 km
Katsuura 113.8 km
Chōshi 128.3 km
Ajiro 131.3 km
Fudži 133.0 km
Kawaguchiko 133.4 km
Onahama 134.5 km
Oshima (Letiště) 137.6 km
Mišima 138.9 km
Karuizawa 139.2 km
Oshima 139.9 km
Fuji Mountain 143.4 km
Fukušima 144.4 km
Kófu 149.0 km
Niigata Letiště 159.7 km
Niigata 160.2 km
Jamagata 177.4 km
Irozaki 178.3 km
Nagano 180.8 km
Takada 185.2 km
Miyakejima Island 187.3 km
Suwa 188.6 km
Jamagata Letiště 191.2 km
Šizuoka 192.0 km
Sendai (Letiště) 201.5 km
Macumoto 204.1 km
Sendai 208.3 km
Shizuhama Air Base 208.8 km
Matsumoto (Letiště) 209.3 km
Shōnai 213.6 km
Shinjō 216.9 km
Šimada Letiště 219.3 km
Sakata 221.2 km
Aikawa 226.4 km
Omaezaki 226.9 km
Iida 228.6 km
Išinomaki 248.0 km
Hamamacu 267.8 km
Hačidžódžima 270.6 km
Takajama 284.1 km
Akita Letiště 286.6 km
Tojama 291.3 km
Tojama Letiště 292.3 km
Akita 293.0 km
Hanamaki (Letiště) 307.0 km
Fushiki 308.2 km
Ófunato 320.0 km
Noto (Letiště) 326.6 km
Morioka 329.0 km
Nagoja 329.2 km
Irako 331.9 km
Gifu Air Field 334.8 km
Wajima 335.2 km
Odate- Noshiro (Letiště) 338.3 km
Gifu 345.8 km
Kanazawa 353.3 km
Letiště Čúbu 354.2 km
Fukaura 370.5 km
Jokkaiči 375.6 km
Miyako 376.6 km
Komacu Letiště 377.7 km
Akeno Air Field 377.8 km
Cu 387.9 km
Aomori (Letiště) 392.4 km
Fukui 397.6 km
Aomori 401.4 km
Hikone 404.3 km
JMSDF Hachinohe Air Base 410.2 km
Hačinohe 412.4 km
Misawa 416.6 km
Curuga 419.0 km
Ueno 425.6 km
Owase 441.2 km
Nara 461.2 km
Kjóto 464.9 km
Yao (Letiště) 488.0 km
Ósaka 495.0 km
Letiště Ósaka 500.0 km