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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.


Nearby Weather Stations - Πόρτσμουθ Απόσταση
Σαουθάμπτον Αεροδρόμιο 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
Μπόρνμουθ 68.7 km
MoD Boscombe Down 72.0 km
Farnborough 73.5 km
Larkhill 78.7 km
Benson 92.2 km
Brighton City Airport 104.0 km
High Wycombe 108.7 km
Διεθνές Αεροδρόμιο Χίθροου 114.0 km
RAF Brize Norton 114.0 km
Oxford Airport 116.0 km
Charlwood 116.3 km
RAF Lyneham 116.5 km
Fairford Airport 117.1 km
Northolt 120.1 km
Διεθνές Αεροδρόμιο Γκάτγουικ 121.5 km
RAF Little Rissington 129.4 km
Cherbourg - Maupertus Airport 131.1 km
Kenley 137.2 km
Isle of Portland 140.9 km
Σαιντ Τζέιμς Παρκ 144.1 km
Cap de la Hague 144.6 km
Rothamsted Park 147.2 km
Biggin Hill 151.1 km
Woburn 151.8 km
Διεθνές Αεροδρόμιο Λούτον 152.4 km
Cranfield Airport 156.6 km
Yeovil 159.3 km
Gloucestershire Airport 160.7 km
London City Airport 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
Μπέρμιγχαμ Αεροδρόμιο 192.4 km
Coleshill 194.4 km
Καέν 199.2 km
London Stansted Airport 201.5 km
Le Havre/Octeville 202.0 km
Sainte-Adresse 203.3 km
Βαϊλάτο του Τζέρσεϊ Αεροδρόμιο 207.4 km
Γκέρνζι Αεροδρόμιο 216.4 km
Wittering 218.5 km
Κέιμπριτζ 220.4 km
Deauville-Saint-Gatien 221.7 km
Deauville-Saint-Gatien AP 221.9 km
Andrewsfield Aerodrome 222.1 km
Dunkeswell Airport 225.4 km
East Midlands Airport 226.4 km
Credenhill 226.8 km
London Southend Airport 229.5 km
Cosford 236.0 km
Cosford 237.9 km
Cosford 237.9 km
Lydd Airport 240.6 km
Shoeburyness 242.5 km
Έξετερ Αεροδρόμιο 243.8 km
Nottingham/Watnall 245.5 km
Κάρντιφ Αεροδρόμιο 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
Διέππη 275.3 km
Holbeach Air Weapons Range 275.7 km
Coal Aston Airfield 279.7 km
Coningsby 279.7 km
Wattisham Airport 283.3 km
Marham 286.0 km
Scampton 288.0 km
Langdon Bay 288.1 km
Manston 292.2 km
Ντόνκαστερ Αεροδρόμιο 298.6 km
North Wyke 298.7 km
Alencon/Valframbert 301.5 km
Sennybridge 302.0 km
Wainfleet All Saints 303.8 km
Μάντσεστερ 307.6 km
Rennes- Saint-Jacques Airport 309.3 km
Rouen/Boos 310.2 km
Saint-Brieuc Armor 310.9 km
Λαβάλ Αεροδρόμιο 312.6 km
Rostherne 313.0 km
Βουλώνη 313.6 km
Emley Moor transmitting station 316.9 km
Le Touquet 317.0 km
Mumbles 319.6 km