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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 - Grassington Distance
Bingley 31.2 km
Leeds Bradford Intl. Airport 43.3 km
Leeming 56.4 km
Stonyhurst 59.7 km
Emley Moor transmitting station 61.7 km
Topcliffe 68.4 km
Warcop Range 73.6 km
Durham Tees Valley Airport 78.9 km
Linton-On-Ouse 81.5 km
Great Dun Fell 86.0 km
Manchester 86.4 km
Rostherne 90.3 km
Shap 91.6 km
Thorncliffe 104.5 km
Coal Aston Airfield 104.8 km
Warton Aerodrome Airport 106.4 km
Albemarle 106.6 km
Newcastle Airport 112.1 km
Blackpool Airport 122.0 km
Spadeadam 126.3 km
Spadeadam II 126.3 km
Liverpool AP 126.3 km
Doncaster Airport 127.3 km
Crosby 136.1 km
Loftus Samos 136.4 km
Redesdale Camp 139.5 km
Walney 141.1 km
Nottingham/Watnall 143.5 km
Keswick 144.1 km
Carlisle 145.7 km
Hawarden 149.7 km
Fylingdales 150.3 km
East Midlands Airport 155.6 km
Boulmer 156.2 km
Shawbury 160.1 km
Cosford 162.7 km
Cosford 162.7 km
Cosford 162.9 km
Leconfield 172.9 km
Coleshill 179.3 km
Scampton 180.9 km
Birmingham Airport 182.0 km
Charterhall 188.0 km
St Bees Head 188.4 km
Humberside 189.6 km
Waddington 191.5 km
Rhyl 192.1 km
Eskdalemuir 194.2 km
Barkston 199.6 km
Cranwell 201.0 km
Bridlington 202.3 km
Church Lawford 203.4 km
Pershore 213.3 km
Bala 219.8 km
Lake Vyrnwy 220.7 km
Shobdon 225.4 km
Coningsby 229.9 km
Wittering 234.4 km
Credenhill 238.6 km
Dundrennan 239.8 km
Capel Curig 242.2 km
Gloucestershire Airport 242.7 km
Donna Nook 246.7 km
RAF Little Rissington 247.6 km
Edinburgh Gogarbank 256.5 km
Edinburgh Airport 258.8 km
London Oxford Airport 258.9 km
Drumalbin 260.1 km
RAF Brize Norton 260.7 km
Bedford 265.1 km
Fairford Airport 266.2 km
Cranfield Airport 269.1 km
RAF Holbeach 271.0 km
Wainfleet 273.5 km
Leuchars 275.0 km
Woburn 275.2 km
Raf Mona 281.0 km
MoD Lyneham 285.2 km
Sennybridge 287.2 km
Dundee/Riverside 288.9 km
Benson 289.5 km
Trawscoed 290.7 km
Isle of Man Airport 295.0 km
High Wycombe 296.1 km
Valley 298.0 km
Luton Airport 303.0 km
Bristol / Lulsgate 309.5 km
Rothamsted Park 309.9 km
Inverbervie 311.4 km
Strathallan 317.1 km
Cambridge 318.3 km
Larkhill 319.6 km
MoD Boscombe Down 323.7 km
Marham 324.7 km
Middle Wallop 327.8 km
Northolt 330.7 km
Prestwick 331.3 km
Cardiff Airport 333.3 km
Mildenhall Royal Air Force 334.0 km
Heathrow Airport 334.7 km