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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 - Colwyn Bay Distance
Rhyl 4.8 km
Bala 35.6 km
Capel Curig 49.9 km
Lake Vyrnwy 52.0 km
Crosby 57.6 km
Hawarden 57.8 km
Liverpool AP 73.5 km
Blackpool Airport 80.4 km
Warton Aerodrome Airport 90.4 km
Raf Mona 97.6 km
Shawbury 103.7 km
Walney 103.8 km
Trawscoed 109.0 km
Valley 115.1 km
Rostherne 125.5 km
Shobdon 127.4 km
Sennybridge 128.4 km
Stonyhurst 133.9 km
Manchester 136.2 km
St Bees Head 145.1 km
Aberdaron 145.5 km
Cosford 147.6 km
Cosford 147.6 km
Credenhill 148.1 km
Cosford 150.2 km
Isle of Man Airport 158.7 km
Keswick 159.9 km
Aberporth 169.0 km
Shap 169.2 km
Thorncliffe 169.3 km
Dundrennan 185.1 km
Mumbles 191.0 km
Pembrey Burrows 192.5 km
Warcop Range 192.5 km
Bingley 193.5 km
Carlisle 200.0 km
Great Dun Fell 200.6 km
St Athan 201.3 km
Pershore 201.8 km
Cardiff Airport 203.0 km
Emley Moor transmitting station 208.7 km
Gloucestershire Airport 209.5 km
Birmingham Airport 214.3 km
Coleshill 218.1 km
Leeds Bradford Airport 218.3 km
Bristol / Lulsgate 221.6 km
Spadeadam II 229.6 km
Spadeadam 229.6 km
Coal Aston Airfield 230.6 km
Eskdalemuir 235.1 km
Liscombe 237.3 km
Milford Haven 241.1 km
RAF West Freugh 242.4 km
East Midlands Airport 245.6 km
RM Chivenor 247.8 km
Leeming 249.9 km
Nottingham/Watnall 251.4 km
RAF Little Rissington 251.4 km
RAF Lyneham 253.9 km
Fairford Airport 255.6 km
Church Lawford 259.6 km
Topcliffe 259.8 km
Dunkeswell Airport 263.4 km
Yeovil 264.6 km
Linton-On-Ouse 266.8 km
Redesdale Camp 267.1 km
Drumalbin 267.9 km
RAF Brize Norton 268.4 km
Albemarle 269.5 km
Teesside Intl. Airport 271.6 km
Exeter Airport 275.7 km
North Wyke 275.8 km
Doncaster Airport 279.3 km
Prestwick 282.4 km
Newcastle Intl. Airport 284.5 km
Oxford Airport 287.1 km
Larkhill 293.4 km
MoD Boscombe Down 299.9 km
Edinburgh Gogarbank 301.8 km
Charterhall 303.6 km
Edinburgh Airport 304.2 km
Belfast/Harbour 306.5 km
Dublin Airport 307.1 km
Glasgow Airport 312.6 km
Middle Wallop 314.9 km
Glasgow Bishopton 320.1 km
Benson 320.9 km
Isle of Portland 322.1 km
Boulmer 323.4 km
Plymouth MtBatten 325.3 km
Dublin Csmt Aero 326.7 km
Barkston 327.7 km
Bournemouth 328.1 km
Cardinham 328.2 km
Scampton 328.5 km
Loftus Samos 329.5 km
Waddington 332.1 km
Cranwell 334.2 km
Fylingdales 340.4 km
Belfast Intl. Airport 343.2 km