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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 - Ploërmel Distance
Saint-Nazaire 74.0 km
Rennes- Saint-Jacques Airport 75.7 km
Dinard/Pleurtuit 81.3 km
Saint-Brieuc Armor 83.4 km
Lorient South Brittany Airport 107.4 km
Le Talut 115.5 km
Nantes Atlantique Airport 123.9 km
Groix 126.4 km
Saint-Sauveur 137.4 km
Jersey Airport 144.5 km
Lannion Airport 149.5 km
Ploumanac'h 155.3 km
Guernsey Airport 168.3 km
Morlaix/Ploujean 174.2 km
La Roche-sur-Yon 177.9 km
Laval Airport 184.8 km
Quimper 196.8 km
Alderney Channel Is 199.6 km
Cap de la Hague 205.1 km
Angers 205.1 km
Landivisiau 206.0 km
Cherbourg - Maupertus Airport 217.2 km
Penmarch 219.4 km
Brignogan-Plages 230.8 km
Lanvéoc/Poulmic 230.9 km
Guipavas 231.7 km
Angers 236.1 km
Phare de Chassiron 237.0 km
La Rochelle Airport 237.0 km
Caen 257.8 km
Pointe du Raz 260.0 km
Alencon/Valframbert 283.8 km
Niort 286.2 km
Isle of Portland 287.4 km
Le Mans/Arnage 289.4 km
Ushant 301.3 km
St. Catherine's Point 319.3 km
Bournemouth 323.3 km
Sainte-Adresse 325.3 km
Deauville-Saint-Gatien AP 327.1 km
Deauville-Saint-Gatien 327.2 km
Le Havre/Octeville 328.8 km
Plymouth MtBatten 330.4 km
Exeter Airport 331.2 km
Poitiers/Biard 336.0 km
Dunkeswell Airport 338.6 km
Yeovil 342.0 km
Cognac - Châteaubernard Air Base 342.6 km
Southampton Airport 348.3 km
Tours/St Symphorien 352.3 km
North Wyke 356.5 km
Thorney Island 360.3 km
MoD Boscombe Down 366.9 km
Larkhill 369.5 km
Middle Wallop 369.7 km
Liscombe 374.8 km
Cardinham 380.9 km
Angoulême - Cognac Intl. Airport 381.2 km
Bristol / Lulsgate 385.2 km
Cap Ferret 388.8 km
Bordeaux/Merignac 394.3 km
RNAS Culdrose 397.8 km
Cardiff Airport 399.1 km
Brighton City Airport 399.6 km
RAF Lyneham 399.7 km
RM Chivenor 400.6 km
Newquay Airport 401.3 km
RAF Odiham 401.9 km
St Athan 402.9 km
Aérodrome de Blois 403.1 km
Cazaux 403.7 km
Biscarrosse 410.2 km
Camborne 412.0 km
Farnborough 414.7 km
Evreux/Fauville 420.3 km
Châteaudun 421.4 km
Fairford Airport 422.5 km
Rouen/Boos 430.3 km
Charlwood 431.3 km
Gatwick Airport 434.8 km
Benson 435.1 km
RAF Brize Norton 435.3 km
Chartres 438.2 km
Mumbles 440.6 km
Gloucestershire Airport 441.2 km
RAF Little Rissington 443.9 km
Herstmonceux 447.0 km
Dieppe 448.7 km
Heathrow Airport 450.3 km
Oxford Airport 450.6 km
High Wycombe 453.7 km
Kenley 454.7 km
Northolt 457.0 km
Romorantin-Lanthenay 460.1 km
Limoges/Bellegarde 460.3 km
Orléans 463.2 km
Biggin Hill 465.1 km
St James's Park 470.9 km
Pembrey Burrows 474.0 km
Bergerac/Roumanier 475.1 km