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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.


Estações Meteorológicas Próximas - Groix Distância
Groix 0.0 km
Lorient South Brittany Airport 21.1 km
Le Talut 50.4 km
Quimper 82.6 km
Penmarch 97.9 km
Morlaix/Ploujean 111.3 km
Landivisiau 121.7 km
Saint-Brieuc Armor 122.0 km
Lannion Aeroporto 122.3 km
Lanv�oc/Poulmic 126.5 km
Ploumanac'h 131.5 km
Guipavas 135.3 km
Pointe du Raz 143.7 km
Brignogan-Plages 147.6 km
Saint-Nazaire 153.4 km
Saint-Sauveur 167.4 km
Dinard/Pleurtuit 190.3 km
Ouessant 195.8 km
Rennes- Saint-Jacques Airport 202.0 km
Aeroporto Nantes Atlantique 217.7 km
Guernsey Airport 222.1 km
Jersey Aeroporto 226.5 km
La Roche-sur-Yon 258.2 km
Alderney Channel Is 271.5 km
Cabo de la Hague 288.5 km
Phare de Chassiron 293.0 km
La Rochelle Aeroporto 304.5 km
Plymouth MtBatten 308.3 km
Laval Aeroporto 309.8 km
Cherbourg - Maupertus Airport 317.1 km
Angers 321.8 km
RNAS Culdrose 333.6 km
Isle of Portland 339.4 km
Cardinham 342.3 km
Exeter Aeroporto 343.2 km
North Wyke 349.1 km
Camborne 349.3 km
Newquay Airport 351.7 km
Angers 355.0 km
Dunkeswell Airport 357.9 km
Niort 375.6 km
Caen 380.0 km
Liscombe 381.6 km
Yeovil 384.7 km
RM Chivenor 388.1 km
Bournemouth 394.7 km
Scilly St Mary 400.4 km
St. Catherine's Point 407.9 km
Alencon/Valframbert 410.1 km
Le Mans/Arnage 413.1 km
Cardiff Aeroporto 416.7 km
St Athan 417.4 km
Cognac - Châteaubernard Air Base 417.4 km
Cap Ferret 418.7 km
Aeroporto de Bristol 423.9 km
Southampton Aeroporto 430.4 km
Cazaux 435.4 km
MoD Boscombe Down 436.9 km
Biscarrosse 437.0 km
Larkhill 437.8 km
Mumbles 438.4 km
Poitiers/Biard 439.3 km
Bordeaux/Merignac 443.3 km
Middle Wallop 444.8 km
Sainte-Adresse 447.2 km
Deauville-Saint-Gatien AP 450.6 km
Le Havre/Octeville 450.6 km
Deauville-Saint-Gatien 450.6 km
Thorney Island 454.1 km
RAF Lyneham 460.1 km
Pembrey Burrows 461.8 km
Santander 464.1 km
Angoulême/Brie-Champniers 466.1 km
Santander / Parayas 470.3 km
Tours/St Symphorien 471.1 km
Punta Galea Golf 478.1 km
Onton 481.1 km
Milford Haven 481.5 km
Fairford Aeroporto 487.1 km
Bilbao/Sondica 488.2 km
RAF Odiham 490.2 km
Gloucester Aeroporto 494.7 km
Brighton City Airport 503.6 km
RAF Brize Norton 504.5 km
Farnborough 505.9 km
Elgoibar 508.3 km
San Sebastian / Igueldo 509.5 km
RAF Little Rissington 509.6 km
San Sebastian / Fuenterrabia 513.7 km
Biarritz/Anglet 514.2 km
Ciboure 514.5 km
Gijón 515.7 km
Benson 516.2 km
Dax 516.9 km
Oxford Airport 525.1 km
Charlwood 532.5 km
Mont-de-Marsan 532.8 km
Asturias/Aviles 535.1 km
Aeroporto de Londres Gatwick 536.6 km
High Wycombe 540.0 km