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United Kingdom

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.

Nearby Weather Stations - Bala Lake Distance
Bala 4.9 km
Lake Vyrnwy 18.6 km
Capel Curig 31.4 km
Rhyl 41.8 km
Hawarden 53.8 km
Trawscoed 63.1 km
Raf Mona 63.9 km
Shawbury 65.8 km
Liverpool AP 72.5 km
Valley 72.8 km
Aberdaron 75.0 km
Crosby 78.4 km
Woodvale 85.5 km
Shobdon 87.6 km
Sennybridge 90.9 km
Keele 92.6 km
Cosford 95.3 km
Rostherne 99.4 km
Manchester 104.2 km
Aberporth 104.8 km
Credenhill 105.5 km
Blackpool Airport 106.1 km
Warton Aerodrome Airport 107.5 km
Thorncliffe 114.9 km
Rochdale 125.1 km
Winterbourne Botanic Garden 125.7 km
Stonyhurst 131.2 km
Pershore 135.8 km
Pembrey Burrows 139.1 km
Walney 139.6 km
Mumbles 148.4 km
Isle of Man Airport 149.1 km
Gloucestershire Airport 150.3 km
St Athan 165.6 km
Filton 168.2 km
Cardiff Airport 168.2 km
Bristol / Lulsgate 178.3 km
St Bees Head 181.8 km
Keswick 193.7 km