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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 - Chiang Rai Vzdálenost
Chiang Rai Agromet 1.4 km
Chiang Rai (Letiště) 12.9 km
Chiang Rai Intl. Airport 13.1 km
Phayao 20.4 km
Kengtung 31.6 km
Lampang 40.6 km
Sukhothaj Letiště 50.1 km
Sukhothaj 52.3 km
Si Samrong Agromet 52.4 km
Lancang 54.7 km
Phrae 55.3 km
Uttaradit 56.9 km
Lampang Agromet 59.1 km
Kamphaeng Phet 68.3 km
Thoen district 71.1 km
Huay Xai 75.1 km
Gengma 79.5 km
Doi Ang Khang 80.3 km
Phitsanulok 81.6 km
Lamphun 85.0 km
Tak 87.7 km
Phičit 88.0 km
Chiang Mai Intl. Airport 89.4 km
Nakhon Sawan 90.1 km
Lin-cchang 93.4 km
Bhumibol Dam 96.1 km
Chai Nat Agromet 102.4 km
Doi Mu Soe Agromet 108.3 km
Nan Agromet 110.3 km
Nan 113.4 km
Tha Wang Pha 116.0 km
Jinghong 120.8 km
Umphang district 121.8 km
Takfa Agromet 122.7 km
Thung Chang 124.5 km
Mae Sot 146.8 km
Simao 147.3 km
Phetchabun 168.8 km
Wichian Buri district 172.8 km
Lom Sak district 176.7 km
Bua Chum 183.0 km
Luang Namtha 190.8 km
Mengla 205.0 km
Mae Sariang (Letiště) 206.1 km
Mae Hong Son 215.4 km
Sainyabuli 219.3 km
Loei 224.3 km
Loei 224.6 km
Ye 225.5 km
Lashio 230.4 km
Jiangcheng 235.2 km
Bounneua 238.5 km
Hpa-an 239.5 km
Mawlamyine 245.8 km
Oudomxay province 249.2 km
Yuanjiang 258.8 km
Luang Prabang 263.5 km
Chaiyaphum (Letiště) 266.3 km
Loikaw (Letiště) 283.9 km
Phonhong 294.6 km
Nongbualamphu 301.7 km
Taunggyi 302.8 km
Vientiane Letiště 314.4 km
Nong Khai (Letiště) 331.2 km
Udon Thani 341.9 km
Thaphra Agromet 348.7 km
Khon Kaen 349.4 km
Bago 365.7 km
Taungoo 367.6 km
Plaine Des Jarres Xiengkhouang 374.9 km
Kosumphisai 375.8 km
Pjinmana 395.2 km
Buriram 400.3 km
Rangún Letiště 403.5 km
Mandalaj 409.4 km
Mengzi 410.0 km
Mandalaj Letiště 422.6 km
Kamalasai 432.1 km
Pakxan 433.6 km
Roi Et 435.9 km
Meiktila 438.1 km
Roi Et 444.2 km
Tha Tum 447.7 km
Shwebo 452.6 km
Sa Pa 454.3 km
Pyapon 459.3 km
Ma-ubin 460.5 km
SƠn La 461.3 km
Lào Cai 471.3 km
Hinthada 485.2 km
Pyay 506.7 km
Monywa 516.7 km