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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 - Port Isaac Distance
Cardinham 19.0 km
Newquay Airport 25.4 km
Camborne 68.9 km
RNAS Culdrose 74.0 km
Plymouth MtBatten 81.5 km
RM Chivenor 92.7 km
North Wyke 104.1 km
Milford Haven 126.5 km
Pembrey Burrows 135.4 km
Mumbles 143.2 km
Liscombe 146.4 km
Exeter Airport 158.0 km
Aberporth 174.2 km
Dunkeswell Airport 178.2 km
St Athan 178.9 km
Scilly St Mary 180.9 km
Cardiff Airport 187.2 km
Sennybridge 212.0 km
Brignogan-Plages 217.6 km
Trawscoed 218.1 km
Ushant 234.3 km
Landivisiau 239.6 km
Guipavas 240.9 km
Aberdaron 244.2 km
Ploumanac'h 245.6 km
Morlaix/Ploujean 246.7 km
Yeovil 247.4 km
Bristol / Lulsgate 249.8 km
Lannion Airport 253.0 km
Lanvéoc/Poulmic 258.7 km
Isle of Portland 263.6 km
Johnstown Castle 266.6 km
Guernsey Airport 277.9 km
Credenhill 279.6 km
Pointe du Raz 283.0 km
Lake Vyrnwy 283.6 km
Shobdon 284.0 km
Bala 292.3 km
Capel Curig 296.1 km
Valley 297.5 km
Quimper 298.3 km
Raf Mona 301.0 km
Alderney Channel Is 306.8 km
Waterford Airport 308.9 km
Penmarch 312.9 km
Saint-Brieuc Armor 315.9 km
Jersey Airport 328.5 km
Gloucestershire Airport 329.5 km
RAF Lyneham 330.6 km
Rhyl 330.8 km
Bournemouth 332.8 km
Cap de la Hague 335.1 km
Oak Park 341.7 km
Larkhill 342.7 km
Shawbury 343.4 km
MoD Boscombe Down 347.5 km
Dublin Csmt Aero 350.7 km
Hawarden 352.1 km
Lorient South Brittany Airport 352.8 km
Dublin Airport 353.8 km
Pershore 355.4 km
Groix 357.1 km
Fairford Airport 358.4 km
Cosford 361.0 km
Cosford 361.0 km
Cosford 362.5 km
Middle Wallop 367.2 km
RAF Little Rissington 375.6 km
Liverpool AP 375.8 km
Crosby 378.0 km
Dinard/Pleurtuit 378.3 km
Southampton Airport 382.0 km
RAF Brize Norton 383.4 km
Cherbourg - Maupertus Airport 386.7 km
Isle of Man Airport 388.8 km
St. Catherine's Point 391.5 km
Birmingham Airport 401.0 km
Roches Point 405.2 km
Blackpool Airport 405.9 km
Le Talut 406.2 km
Coleshill 407.7 km
Rostherne 410.6 km
Warton Aerodrome Airport 411.9 km
Oxford Airport 413.4 km
Manchester 417.1 km
Thorncliffe 423.7 km
Walney 429.4 km
Benson 429.6 km
Cork Airport 431.0 km
Mullingar 432.6 km
Thorney Island 434.3 km
Church Lawford 435.3 km
RAF Odiham 437.1 km
Rennes- Saint-Jacques Airport 442.5 km
Gurteen 445.0 km
Glenanne 445.6 km
Stonyhurst 445.8 km
St Bees Head 456.8 km
Farnborough 457.5 km
Belfast/Harbour 460.7 km