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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 - Iwakuni Distancia
Marine Corps Air Station Iwakuni 2.7 km
Hiroshima 32.9 km
Kure 37.4 km
Hamada 57.3 km
Matsuyama Airport 59.5 km
Iwami Airport 60.8 km
Matsuyama 67.9 km
Oita Airport 74.0 km
Hōfu Airport 74.9 km
Uwajima 80.4 km
Hiroshima Airport 80.5 km
Yamaguchi 85.4 km
Hagi 92.8 km
Ōita 96.3 km
Ube Airport 105.9 km
Sukumo 108.2 km
Fukuyama 117.0 km
Izumo Airport 119.8 km
Ozuki AP 130.2 km
Nobeoka 133.4 km
Matsue 135.3 km
Shimizu 141.0 km
Kitakyushu/Kokura 143.1 km
Shimonoseki 143.8 km
Miho-Yonago Airport 152.1 km
Kōchi 153.8 km
Sakaiminato 154.0 km
Hita 156.0 km
Yonago 158.4 km
Yonago 158.4 km
Kōchi Airport 168.4 km
Tadotsu 170.9 km
Iizuka 173.1 km
Kumamoto Airport 180.5 km
Okayama Airport 187.1 km
Miyazaki 189.2 km
Miyazaki Airport 190.9 km
Okayama 192.8 km
Kumamoto 194.4 km
Saigo 197.7 km
Takamatsu Airport 200.3 km
Takamatsu 204.4 km
Fukuoka Airport 208.5 km
Tsuyama 211.7 km
Aburatsu 212.5 km
Hitoyoshi 217.5 km
Miyakonojō 219.8 km
Saga 223.4 km
Saga Airport 226.4 km
Muroto 229.8 km
Tottori Airport 240.7 km
Unzendake Mount 241.6 km
Tottori 245.9 km
Kanoya 257.3 km
Tokushima 263.6 km
Tokushima Airport 266.3 km
Kagoshima Airport 267.4 km
Komatsushima Airport 268.5 km
Nagasaki Airport 272.2 km
Akune 274.3 km
Himeji 277.5 km
Nagasaki 281.8 km
Ushibuka 282.5 km
Ulleungdo 285.4 km
Sasebo 286.2 km
Tanegashima 287.6 km
New Tanegashima Airport 296.4 km
Sumoto 299.0 km
Makurazaki 301.4 km
Hirado 302.8 km
Tajima Airport 304.1 km
Toyooka 307.8 km
Tsushima Airport 321.4 km
Tsushima 324.7 km
Yakushima 327.8 km
Wakayama 328.4 km
Kobe 336.5 km
Kobe Airport 336.7 km
Ulsan 338.1 km
Kansai Intl. Airport 338.2 km
Pohang 343.4 km
Nanki 352.6 km
Maizuru 358.9 km
Busan 360.8 km
Itami Airport 363.1 km
Osaka 369.5 km
Gimhae Airport 372.8 km
Uljin 373.0 km
Yao Airport 378.2 km
Fukue 391.3 km
Fukue Airport 392.0 km
Kyoto 396.9 km
Shionomisaki Lighthouse 399.0 km
Nara 404.6 km
Masan 412.9 km
Taegu US-AFB 416.3 km
Daegu 419.4 km
Donghae Radar 419.8 km
Tongyeong 424.0 km
Andong 426.4 km

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