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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 - Île de Batz Distance
Morlaix/Ploujean 27.8 km
Landivisiau 28.7 km
Brignogan-Plages 36.0 km
Guipavas 55.6 km
Lannion Airport 61.2 km
Ploumanac'h 61.9 km
Lanvéoc/Poulmic 70.5 km
Quimper 87.7 km
Penmarch 112.4 km
Pointe du Raz 112.7 km
Ushant 118.8 km
Lorient South Brittany Airport 132.1 km
Saint-Brieuc Armor 132.1 km
Groix 135.0 km
Guernsey Airport 175.0 km
Plymouth MtBatten 178.6 km
Le Talut 184.5 km
RNAS Culdrose 202.4 km
Cardinham 207.5 km
Jersey Airport 208.8 km
Newquay Airport 216.9 km
Camborne 217.8 km
Dinard/Pleurtuit 217.9 km
North Wyke 224.3 km
Alderney Channel Is 229.0 km
Exeter Airport 231.0 km
Dunkeswell Airport 249.9 km
Cap de la Hague 255.6 km
RM Chivenor 259.5 km
Saint-Nazaire 261.0 km
Isle of Portland 262.6 km
Liscombe 263.3 km
Rennes- Saint-Jacques Airport 265.2 km
Scilly St Mary 285.2 km
Yeovil 293.7 km
Saint-Sauveur 295.0 km
Cherbourg - Maupertus Airport 300.6 km
St Athan 302.0 km
Cardiff Airport 303.4 km
Mumbles 312.8 km
Nantes Atlantique Airport 321.7 km
Bristol / Lulsgate 326.3 km
Pembrey Burrows 331.7 km
Bournemouth 331.9 km
Milford Haven 347.0 km
St. Catherine's Point 364.7 km
Larkhill 367.5 km
MoD Boscombe Down 368.6 km
Sennybridge 371.1 km
La Roche-sur-Yon 371.3 km
Laval Airport 373.1 km
Southampton Airport 376.8 km
RAF Lyneham 380.0 km
Aberporth 380.5 km
Middle Wallop 381.5 km
Credenhill 394.4 km
Trawscoed 399.2 km
Caen 400.0 km
Angers 404.3 km
Gloucestershire Airport 405.8 km
Shobdon 409.0 km
Fairford Airport 409.5 km
Thorney Island 414.0 km
Phare de Chassiron 417.6 km
La Rochelle Airport 425.0 km
RAF Brize Norton 430.8 km
RAF Little Rissington 431.9 km
Angers 433.1 km
Pershore 437.7 km
RAF Odiham 439.9 km
Lake Vyrnwy 448.5 km
Aberdaron 454.7 km
Benson 455.4 km
Oxford Airport 456.0 km
Farnborough 458.5 km
Bala 464.3 km
Cosford 472.5 km
Cosford 472.5 km
Cosford 472.8 km
Shawbury 474.5 km
Brighton City Airport 475.8 km
Johnstown Castle 480.4 km
Birmingham Airport 483.5 km
High Wycombe 484.4 km
Niort 485.1 km
Coleshill 489.6 km
Charlwood 498.6 km
Heathrow Airport 499.7 km
Church Lawford 500.3 km
Gatwick Airport 503.3 km
Northolt 505.6 km
Waterford Airport 511.7 km
Kenley 521.2 km
Woburn 526.0 km
Cranfield Airport 528.9 km
St James's Park 530.1 km
Rothamsted Park 530.5 km
Luton Airport 534.5 km
Cognac - Châteaubernard Air Base 536.0 km
East Midlands Airport 543.6 km