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Norteamérica



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.


Estaciones meteorológicas cercanas - Knoxville Distancia
Newton Municipal aeropuerto 11.4 km
Sedalia Regional aeropuerto 17.5 km
Iowa Falls Aeropuerto 18.5 km
Pella Aeropuerto 19.3 km
South St. Paul Municipal aeropuerto 21.9 km
Stanton Airfield 22.1 km
St. Paul Downtown aeropuerto 22.6 km
Marshall Town Muni 22.8 km
Owatonna (Awos) 22.9 km
Airlake aeropuerto 23.2 km
Centerville Aeropuerto 24.6 km
Mineápolis-Saint Paul aeropuerto 24.7 km
Austin Municipal aeropuerto 24.7 km
del condado Anoka-Blaine aeropuerto 26.2 km
Mason 26.8 km
Chariton 27.9 km
Cambridge Aeropuerto 31.1 km
Albert Lea Municipal aeropuerto 31.6 km
Rush City Rgnl aeropuerto 31.8 km
Mora Aeropuerto 33.3 km
Crystal aeropuerto 35.1 km
Dodge Center aeropuerto 36.9 km
Nacional de Springfield aeropuerto 39.2 km
Grinnell Aeropuerto 42.7 km
Flying Cloud aeropuerto 43.4 km
Ankeny Regional aeropuerto 48.3 km
Base de la Fuerza Aérea Whiteman 51.0 km
Waseca Municipal aeropuerto 51.8 km
Chillicothe 52.8 km
Osceola Aeropuerto 53.2 km
Ames Aeropuerto 55.8 km
Northeast Iowa Regional aeropuerto 56.9 km
Forest City Aeropuerto 57.9 km
Des Moines aeropuerto 59.4 km
Princeton Municipal aeropuerto 61.3 km
Kirksville Regional aeropuerto 63.4 km
Osceola Muni 63.8 km
Lee C. Fine Memorial aeropuerto 65.5 km
Clinton Aeropuerto 66.1 km
New Richmond Regional aeropuerto 68.2 km
Oskaloosa Aeropuerto 69.3 km
Rochester aeropuerto 70.1 km
Red Wing Regional aeropuerto 72.7 km
Clarion Municipal aeropuerto 73.0 km
Ottumwa Regional aeropuerto 74.2 km
Skyhaven aeropuerto 78.2 km
Waterloo Regional aeropuerto 80.1 km
Boone Aeropuerto 81.8 km
Webster City 83.8 km
Buffalo Aeropuerto 85.2 km
Burnett County aeropuerto 86.4 km
Mankato Regional aeropuerto 91.2 km
Lamoni 92.9 km
Maple Lake Municipal aeropuerto 100.9 km
Columbia Regional aeropuerto 101.0 km
Fillmore County aeropuerto 105.6 km
Jefferson 108.5 km
St. Cloud Regional aeropuerto 109.8 km
Waynesville-St. Robert Regional aeropuerto 110.9 km
Glencoe Aeropuerto 111.0 km
Perry Municipal aeropuerto 116.2 km
Fort Dodge Regional aeropuerto 119.1 km
Vinton Aeropuerto 121.5 km
Fairfield Municipal aeropuerto 126.2 km
Cumberland Municipal aeropuerto 128.0 km
Oelwen 128.2 km
Algona Municipal aeropuerto 128.6 km
Independence Municipal aeropuerto 130.3 km
Creston 139.2 km
Menomonie Municipal aeropuerto 140.2 km
Lee's Summit Municipal aeropuerto 140.7 km
Little Falls/Morrison 141.3 km
Hutchinson Municipal aeropuerto 143.3 km
Fairmont Municipal aeropuerto 145.7 km
Rolla National aeropuerto 151.0 km
Decorah Aeropuerto 154.3 km
New Ulm Municipal aeropuerto 155.5 km
Eastern Iowa aeropuerto 155.9 km
Joplin Regional aeropuerto 156.9 km
Rice Lake Regional aeropuerto 157.0 km
Litchfield Aeropuerto 157.4 km
Winona Municipal aeropuerto 158.2 km
Washington 161.4 km
Urbano Charles B. Wheeler aeropuerto 165.9 km
Iowa City Municipal aeropuerto 175.2 km
Mount Pleasant Municipal aeropuerto 178.7 km
Johnson 180.9 km
Atkinson Municipal aeropuerto 182.0 km
Chippewa Valley Regional aeropuerto 182.4 km
Kansas aeropuerto 182.4 km
Estherville Muni 182.5 km
Paynesville Aeropuerto 183.1 km
Arthur N. Neu aeropuerto 186.2 km
Hannibal Regional aeropuerto 186.4 km
Keokuk Municipal aeropuerto 187.4 km
New Century AirCenter 197.5 km
Long Prairie Aeropuerto 197.8 km
Fort Madison 198.5 km
Rosecrans Memorial aeropuerto 198.9 km