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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.


Nächste Wetterstation - Saint-Nazaire Abstand
Saint-Nazaire 0.6 km
Nantes Flughafen 64.8 km
Saint-Sauveur 71.1 km
Rennes Flughafen 96.6 km
La Roche-sur-Yon 111.0 km
Le Talut 117.1 km
Lorient Bretagne Sud Flughafen 140.9 km
Dinard/Pleurtuit 141.3 km
Île de Groix 153.0 km
Saint-Brieuc Armor 155.2 km
Phare de Chassiron 164.4 km
La Rochelle Flughafen 166.7 km
Angers 173.7 km
Laval Flughafen 177.3 km
Angers Loire Flughafen 208.2 km
Jersey Flughafen 211.4 km
Lannion Flughafen 215.3 km
Ploumanac'h 222.2 km
Niort 226.0 km
Morlaix/Ploujean 232.6 km
Quimper 234.5 km
Guernsey Airport 240.3 km
Penmarch 250.7 km
Landivisiau 258.9 km
Alderney Channel Is 267.0 km
La Hague 268.3 km
Cherbourg-Maupertus Flughafen 270.9 km
Le Mans/Arnage 272.2 km
Lanvéoc/Poulmic 275.4 km
Militärflugplatz Cognac-Châteaubernard 275.9 km
Guipavas 280.4 km
Alencon/Valframbert 281.3 km
Caen 282.3 km
Brignogan-Plages 285.0 km
Poitiers/Biard 286.5 km
Pointe du Raz 296.6 km
Cap Ferret 315.5 km
Angoulême-Cognac Flughafen 319.2 km
Bordeaux/Merignac 321.9 km
Tours/St. Symphorien 322.5 km
Cazaux 330.4 km
Biscarrosse 336.9 km
Deauville-Saint-Gatien AP 345.6 km
Deauville-Saint-Gatien 345.7 km
Ouessant 346.1 km
Sainte-Adresse 347.6 km
Le Havre/Octeville 351.6 km
Isle of Portland 357.3 km
St. Catherine's Point 376.1 km
Aérodrome de Blois 378.3 km
Bournemouth 387.5 km
Plymouth MtBatten 401.7 km
Châteaudun 403.9 km
Exeter Flughafen 404.6 km
Limoges/Bellegarde 406.1 km
Southampton Flughafen 407.7 km
Bergerac/Roumanier 408.2 km
Dunkeswell Flughafen 411.8 km
Yeovil 412.9 km
Thorney Island 413.2 km
Evreux/Fauville 421.5 km
Mont-de-Marsan 421.5 km
Dax 421.6 km
Chartres 427.8 km
Romorantin-Lanthenay 429.0 km
North Wyke 429.3 km
MoD Boscombe Down 430.8 km
Middle Wallop 431.7 km
Larkhill 434.0 km
Biarritz/Anglet 434.1 km
Châteauroux 437.8 km
Rouen/Boos 438.2 km
Ciboure 439.6 km
San Sebastian / Hondarribia 442.2 km
Orléans 443.5 km
Flugplatz Shoreham 444.0 km
San Sebastian / Igueldo 446.3 km
Liscombe 448.1 km
Punta Galea Golf 448.5 km
Cardinham 450.3 km
Bilbao/Sondica 454.4 km
Bristol Airport 456.4 km
Onton 456.7 km
RAF Odiham 457.2 km
Elgoibar 457.7 km
RNAS Culdrose 461.4 km
Santander 463.3 km
Agen/La Garenne 465.8 km
Dieppe 465.9 km
RAF Lyneham 466.1 km
Farnborough 468.1 km
Newquay Cornwall Airport 468.6 km
Santander / Parayas 470.2 km
Brive-la-Gaillarde 471.7 km
Cardiff Flughafen 472.2 km
RMB Chivenor 473.3 km
Guéret Flughafen 475.6 km
St Athan 476.1 km
Camborne 476.1 km
Charlwood 477.4 km

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