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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.


Stazioni meteo nelle vicinanze - Haikou Aeroporto Distanza
Haikou Aeroporto 1.0 km
Haikou 11.8 km
Qionghai 27.3 km
Zhanjiang 50.2 km
Shan Xian 97.8 km
Xinyi 109.2 km
Sanya 122.4 km
Sanya Phoenix Intl. Airport 131.0 km
Guiping 139.7 km
Beihai 161.2 km
Wuzhou 169.6 km
Yangjiang 185.9 km
Sanhu Dao 187.9 km
Dongfang 206.4 km
Qinzhou 217.4 km
Xisha Dao 244.5 km
Gaoyao 257.8 km
Quảng Ngãi 257.9 km
Nanning 267.7 km
Shangchuandao 268.2 km
Nanning/Wuxu AP 270.9 km
Móng Cái 282.4 km
Aeroporto Internazionale di Da Nang 288.6 km
Bạch Long Vĩ 304.4 km
Huế 343.3 km
Canton Aeroporto 348.2 km
Taipa Aeroporto 359.2 km
Fogang 380.2 km
Aeroporto di Shenzhen-Bao'an 389.6 km
Hong Kong 398.6 km
Lau Fau Shan 407.4 km
Cheung Chau 408.3 km
Lạng SƠn 415.5 km
Longzhou 420.8 km
Shenzhen 421.0 km
Phu Lien 426.0 km
Ta Kwu Ling 426.2 km
Sha Tin 430.2 km
Đồng Hới 437.2 km
Sekong 449.6 km
Baise 450.7 km
Salavan 471.2 km
Cao Bằng 477.1 km
Nam Dinh 479.0 km
Heyuan 498.2 km

Situazione attuale