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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 - Tenby Distance
Pembrey Burrows 37.5 km
Milford Haven 39.1 km
Aberporth 53.9 km
Mumbles 80.5 km
RM Chivenor 89.1 km
Trawscoed 112.5 km
Aberdaron 123.9 km
Sennybridge 128.5 km
Cardinham 129.3 km
North Wyke 133.8 km
Liscombe 138.5 km
Newquay Airport 139.9 km
St Athan 143.8 km
Cardiff Airport 154.0 km
Plymouth MtBatten 159.2 km
Camborne 174.8 km
Valley 176.7 km
Exeter Airport 177.2 km
Raf Mona 180.5 km
Capel Curig 180.6 km
Lake Vyrnwy 182.5 km
Dunkeswell Airport 185.5 km
Bala 185.6 km
RNAS Culdrose 186.1 km
Johnstown Castle 212.3 km
Shobdon 212.5 km
Credenhill 216.5 km
Rhyl 221.0 km
Bristol / Lulsgate 222.7 km
Yeovil 241.7 km
Hawarden 253.5 km
Shawbury 259.0 km
Dublin Airport 260.9 km
Scilly St Mary 263.3 km
Dublin Csmt Aero 264.5 km
Isle of Man Airport 268.2 km
Waterford Airport 271.9 km
Crosby 273.0 km
Liverpool AP 276.9 km
Oak Park 277.8 km
Isle of Portland 281.2 km
Gloucestershire Airport 283.8 km
Cosford 287.7 km
Cosford 287.7 km
Cosford 289.7 km
Blackpool Airport 298.3 km
Pershore 301.7 km
RAF Lyneham 301.9 km
Warton Aerodrome Airport 306.9 km
Walney 316.3 km
Rostherne 319.3 km
Fairford Airport 323.9 km
Larkhill 327.0 km
Manchester 327.6 km
MoD Boscombe Down 333.1 km
Brignogan-Plages 333.6 km
Bournemouth 333.9 km
RAF Little Rissington 335.5 km
St Bees Head 338.8 km
Guernsey Airport 340.9 km
Birmingham Airport 341.5 km
Ploumanac'h 343.3 km
Thorncliffe 343.4 km
Stonyhurst 346.0 km
RAF Brize Norton 347.7 km
Glenanne 347.9 km
Coleshill 347.9 km
Belfast/Harbour 350.8 km
Lannion Airport 351.8 km
Alderney Channel Is 352.7 km
Landivisiau 353.4 km
Middle Wallop 353.5 km
Morlaix/Ploujean 354.4 km
RAF West Freugh 355.1 km
Ushant 355.2 km
Dundrennan 356.6 km
Guipavas 358.3 km
Mullingar 361.5 km
Keswick 369.7 km
Belfast Intl. Airport 373.0 km
Cap de la Hague 376.6 km
Lanvéoc/Poulmic 376.7 km
Oxford Airport 376.7 km
Southampton Airport 377.1 km
Church Lawford 382.8 km
Shap 386.6 km
Jersey Airport 389.3 km
Ballyhaise 391.6 km
Bingley 395.3 km
Roches Point 395.5 km
Gurteen 396.5 km
East Midlands Airport 397.1 km
St. Catherine's Point 397.2 km
Emley Moor transmitting station 400.9 km
Benson 400.9 km
Pointe du Raz 403.1 km
Saint-Brieuc Armor 404.4 km
Portglenone 404.8 km
Coal Aston Airfield 406.9 km
Warcop Range 410.4 km