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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 - Lannion Vzdálenost
Lannion Letiště 0.0 km
Ploumanac'h 9.3 km
Morlaix/Ploujean 42.4 km
Saint-Brieuc Armor 72.7 km
Landivisiau 80.1 km
Brignogan-Plages 96.8 km
Lorient South Brittany (Letiště) 110.0 km
Guipavas 110.9 km
Quimper 116.2 km
Lanvéoc/Poulmic 120.7 km
Groix 122.3 km
Guernsey (Letiště) 122.8 km
Penmarch 145.5 km
Jersey Letiště 150.2 km
Dinard/Pleurtuit 156.9 km
Pointe du Raz 161.9 km
Le Talut 164.1 km
Alderney Channel Is 177.3 km
Ouessant 178.7 km
Plymouth MtBatten 192.6 km
Cap de la Hague 201.7 km
Rennes- Saint-Jacques (Letiště) 207.2 km
Saint-Nazaire 215.9 km
Exeter Letiště 220.9 km
Portland 226.7 km
North Wyke 229.2 km
Dunkeswell (Letiště) 235.9 km
Cardinham 236.0 km
Cherbourg - Maupertus (Letiště) 243.7 km
RNAS Culdrose 248.3 km
Newquay (Letiště) 253.3 km
Liscombe 259.7 km
Saint-Sauveur 260.5 km
Camborne 262.5 km
Yeovil 266.8 km
RM Chivenor 270.1 km
Nantes Atlantique (Letiště) 272.8 km
Bournemouth 290.1 km
Cardiff Letiště 294.4 km
St Athan 295.1 km
Bristol / Lulsgate 304.3 km
Laval Letiště 313.6 km
St. Catherine's Point 315.8 km
Mumbles 318.1 km
La Roche-sur-Yon 325.2 km
Larkhill 329.6 km
MoD Boscombe Down 329.8 km
Southampton Letiště 331.8 km
Caen 339.3 km
Middle Wallop 340.5 km
Scilly St Mary 340.9 km
Pembrey Burrows 344.4 km
RAF Lyneham 347.3 km
Angers 347.6 km
Thorney Island 364.6 km
Sennybridge 368.9 km
Milford Haven 371.9 km
Angers 375.3 km
Fairford (Letiště) 375.7 km
Phare de Chassiron 377.8 km
Credenhill 377.9 km
Gloucestershire Letiště 378.4 km
La Rochelle Letiště 381.9 km
RAF Odiham 394.3 km
Shobdon 394.5 km
RAF Brize Norton 395.1 km
Aberporth 395.2 km
RAF Little Rissington 398.3 km
Alencon/Valframbert 398.6 km
Sainte-Adresse 402.1 km
Trawscoed 402.8 km
Le Havre/Octeville 404.7 km
Deauville-Saint-Gatien (Letiště) 410.2 km
Deauville-Saint-Gatien 410.2 km
Pershore 410.3 km
Farnborough 412.0 km
Benson 414.0 km
Le Mans/Arnage 418.2 km
Oxford (Letiště) 418.3 km
Brighton City (Letiště) 423.4 km
Niort 435.7 km
High Wycombe 441.1 km
Lake Vyrnwy 444.5 km
Charlwood 448.1 km
Cosford 451.4 km
Cosford 451.4 km
Cosford 451.4 km
Letiště London Gatwick 452.6 km
Letiště London Heathrow 452.7 km
Birmingham Letiště 454.4 km
Northolt 458.8 km
Shawbury 458.9 km
Coleshill 460.2 km
Bala 462.1 km
Church Lawford 466.4 km
Aberdaron 469.5 km
Kenley 471.1 km
St. James's Park 481.4 km
Woburn 483.6 km
Poitiers/Biard 483.7 km