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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 - Colchester Distance
Wattisham 37.5 km
Shoeburyness 46.4 km
London Southend Airport 51.2 km
Manston 55.8 km
Andrewsfield Aerodrome 57.5 km
Writtle 61.6 km
Barrow 66.3 km
London Stansted Airport 72.4 km
Santon Downham 79.0 km
Mildenhall Royal Air Force 79.4 km
Langdon Bay 79.9 km
Lakenheath 79.9 km
Gravesend Broadness 81.3 km
Cambridge 85.0 km
East Malling and Larkfield 86.9 km
Norwich Weather Centre 87.2 km
Girton 91.7 km
London City Airport 93.8 km
Marham 101.6 km
Lydd Airport 103.0 km
St. James's Park 104.4 km
Biggin Hill 106.0 km
Rothamsted Park 112.7 km
Kenley 112.8 km
Luton Airport 113.7 km
Dunkirk 115.1 km
Monks Wood 119.6 km
Weybourne 121.1 km
Northolt 122.7 km
Boulogne-sur-Mer 126.2 km
London Heathrow Airport 127.3 km
Herstmonceux 127.5 km
Koksijde 127.7 km
Gatwick Airport 128.2 km
Charlwood 131.2 km
Ostend Airport 131.5 km
RAF Holbeach 137.6 km
Le Touquet 150.2 km
Wainfleet 153.6 km