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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 - Tomakomai Distancia
Chitose 20.6 km
Sapporo 44.8 km
Sapporo 47.5 km
Iwamizawa 58.5 km
Muroran 68.2 km
Otaru 77.1 km
Kutchan 90.6 km
Hakodate Aeropuerto 109.4 km
Hakodate 112.9 km
Rumoi 116.7 km
Mutsu 121.8 km
Ōminato Guard 129.0 km
Asahikawa 135.8 km
Asahikawa aeropuerto 136.1 km
Asahikawa Aeropuerto 137.4 km
Urakawa 142.9 km
Suttsu 147.4 km
Haboro 153.6 km
Misawa 168.1 km
Esashi 170.5 km
Aomori 178.8 km
JMSDF Hachinohe Air Base 180.1 km
Hachinohe 181.6 km
Tokachi 185.9 km
Obihiro 187.4 km
Aomori aeropuerto 188.7 km
Hiroo 198.6 km
Kitamiesashi 233.7 km
Ōmu 234.2 km
Wakkanai 244.8 km
Wakkanai Aeropuerto 245.1 km
Fukaura 247.2 km
Odate- Noshiro aeropuerto 247.3 km
Monbetsu 253.6 km
Monbetsu aeropuerto 254.5 km
Morioka 257.3 km
Miyako 263.5 km
Hanamaki aeropuerto 280.9 km
Kushiro Aeropuerto 296.6 km
Akita 297.8 km
Akita Aeropuerto 298.6 km
Ōfunato 310.4 km
Memanbetsu aeropuerto 311.9 km
Kushiro 317.1 km
Abashiri 328.7 km
Shinjō 361.3 km
Ishinomaki 365.1 km
Sakata 371.9 km
Shōnai 381.8 km
Sendai 384.4 km
Yamagata Aeropuerto 386.5 km
Nakashibetsu aeropuerto 389.1 km
Sendai aeropuerto 395.1 km
Yamagata 400.4 km
Juzhno-Sahalinsk aeropuerto 402.3 km
Juzhno-Sahalinsk aeropuerto 402.3 km
Nemuro 453.5 km
Svetlaya 489.4 km
Yuzhno-Kurilsk 496.7 km
Aikawa 536.8 km