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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 - Hitači Vzdálenost
Mito 26.7 km
Onahama 42.1 km
Ibaraki (Letiště) 43.3 km
Shirakawa 67.5 km
Tokio New Intl. Airport 76.2 km
Chōshi 77.1 km
Ucunomija 87.2 km
Shimofusa (Letiště) 97.8 km
Fukušima 102.4 km
Čiba 104.2 km
Wakamatsu 112.3 km
Tokyo Heliport 121.4 km
Tokio 124.9 km
Katsuura 128.6 km
Nikkó 128.7 km
Letiště Haneda 130.8 km
Sendai (Letiště) 137.4 km
Kumagaja 145.8 km
Jamagata 147.0 km
Chōfu (Letiště) 147.2 km
Sendai 147.8 km
Jokohama 148.5 km
Tachikawa Airfield 157.5 km
Jamagata Letiště 160.1 km
Yokota Air Base 161.2 km
Tatejama 162.4 km
Tatejama 164.1 km
Zama Letiště 167.0 km
Zama Letiště 167.0 km
Išinomaki 175.6 km
Maebaši 176.9 km
Chichibu 181.7 km
Shinjō 189.7 km
Niigata Letiště 207.3 km
Oshima (Letiště) 210.3 km
Niigata 211.2 km
Oshima 211.8 km
Shōnai 213.5 km
Ajiro 216.3 km
Sakata 217.3 km
Fudži 225.8 km
Mišima 228.2 km
Kawaguchiko 228.9 km
Karuizawa 234.7 km
Fuji Mountain 237.9 km
Miyakejima Island 244.7 km
Ófunato 245.9 km
Kófu 246.3 km
Hanamaki (Letiště) 251.6 km
Irozaki 261.8 km
Akita Letiště 264.6 km
Takada 270.7 km
Nagano 272.8 km
Morioka 275.2 km
Akita 275.5 km
Šizuoka 285.4 km
Suwa 285.6 km
Aikawa 294.8 km
Macumoto 300.0 km
Shizuhama Air Base 301.6 km
Miyako 304.1 km
Matsumoto (Letiště) 305.6 km
Odate- Noshiro (Letiště) 311.5 km
Hačidžódžima 311.8 km
Šimada Letiště 312.8 km
Omaezaki 318.6 km
Iida 326.2 km
JMSDF Hachinohe Air Base 355.4 km
Hačinohe 356.0 km
Fukaura 357.2 km
Aomori (Letiště) 357.4 km
Hamamacu 363.0 km
Aomori 364.9 km
Misawa 365.0 km
Takajama 380.2 km
Tojama 384.2 km
Tojama Letiště 385.5 km
Fushiki 400.5 km
Noto (Letiště) 414.8 km
Wajima 422.8 km
Nagoja 426.8 km
Irako 428.5 km
Gifu Air Field 432.4 km
Gifu 443.5 km
Kanazawa 447.1 km
Letiště Čúbu 451.6 km
Komacu Letiště 472.5 km
Jokkaiči 473.2 km
Akeno Air Field 474.8 km
Cu 485.3 km
Fukui 493.7 km
Hikone 501.9 km
Curuga 516.1 km
Ueno 523.2 km
Owase 537.8 km

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