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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 - Portsmouth Vzdálenost
Southampton Letiště 23.2 km
St. Catherine's Point 25.8 km
Thorney Island 32.8 km
Middle Wallop 55.1 km
RAF Odiham 57.5 km
Bournemouth 68.7 km
MoD Boscombe Down 72.0 km
Farnborough 73.5 km
Larkhill 78.7 km
Benson 92.2 km
Brighton City (Letiště) 104.0 km
High Wycombe 108.7 km
Letiště London Heathrow 114.0 km
RAF Brize Norton 114.0 km
Oxford (Letiště) 116.0 km
Charlwood 116.3 km
RAF Lyneham 116.5 km
Fairford (Letiště) 117.1 km
Northolt 120.1 km
Letiště London Gatwick 121.5 km
RAF Little Rissington 129.4 km
Cherbourg - Maupertus (Letiště) 131.1 km
Kenley 137.2 km
Portland 140.9 km
St. James's Park 144.1 km
Cap de la Hague 144.6 km
Rothamsted Park 147.2 km
Biggin Hill 151.1 km
Woburn 151.8 km
Letiště London Luton 152.4 km
Cranfield (Letiště) 156.6 km
Yeovil 159.3 km
Gloucestershire Letiště 160.7 km
Letiště London 161.1 km
Alderney Channel Is 162.8 km
Herstmonceux 171.0 km
Church Lawford 173.9 km
Pershore 175.6 km
Bedford 177.6 km
Bristol / Lulsgate 179.4 km
Birmingham Letiště 192.4 km
Coleshill 194.4 km
Caen 199.2 km
Letiště London Stansted 201.5 km
Le Havre/Octeville 202.0 km
Sainte-Adresse 203.3 km
Jersey Letiště 207.4 km
Guernsey (Letiště) 216.4 km
Wittering 218.5 km
Cambridge 220.4 km
Deauville-Saint-Gatien 221.7 km
Deauville-Saint-Gatien (Letiště) 221.9 km
Andrewsfield Aerodrome 222.1 km
Dunkeswell (Letiště) 225.4 km
East Midlands Letiště 226.4 km
Credenhill 226.8 km
Letiště London Southend 229.5 km
Cosford 236.0 km
Cosford 237.9 km
Cosford 237.9 km
Lydd (Letiště) 240.6 km
Shoeburyness 242.5 km
Exeter Letiště 243.8 km
Nottingham/Watnall 245.5 km
Cardiff Letiště 245.9 km
Shobdon 245.9 km
Barkston 251.8 km
St Athan 255.9 km
Mildenhall Royal Air Force 257.2 km
Cranwell 260.7 km
Dinard/Pleurtuit 264.2 km
Liscombe 267.2 km
Lakenheath 267.9 km
Thorncliffe 272.7 km
Waddington 274.7 km
Shawbury 274.9 km
Dieppe 275.3 km
Holbeach Air Weapons Range 275.7 km
Coal Aston Airfield 279.7 km
Coningsby 279.7 km
Wattisham (Letiště) 283.3 km
Marham 286.0 km
Scampton 288.0 km
Langdon Bay 288.1 km
Manston 292.2 km
Doncaster Letiště 298.6 km
North Wyke 298.7 km
Alencon/Valframbert 301.5 km
Sennybridge 302.0 km
Wainfleet All Saints 303.8 km
Manchester 307.6 km
Rennes- Saint-Jacques (Letiště) 309.3 km
Rouen/Boos 310.2 km
Saint-Brieuc Armor 310.9 km
Laval Letiště 312.6 km
Rostherne 313.0 km
Boulogne-sur-Mer 313.6 km
Emley Moor transmitting station 316.9 km
Le Touquet-Paris-Plage 317.0 km
Mumbles 319.6 km