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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.


Stazioni meteo nelle vicinanze - Northfield Distanza
South St. Paul Municipal Airport 2.4 km
Airlake Airport 7.5 km
Aeroporto Internazionale di Minneapolis-Saint Paul-Wold-Chamberlain 7.9 km
Anoka 8.6 km
St. Paul Downtown Airport 9.8 km
Owatonna (Awos) 11.3 km
Cambridge Aeroporto 14.5 km
Stanton Airfield 15.1 km
Mora Aeroporto 16.2 km
Iowa Falls Aeroporto 18.2 km
Knoxville 19.5 km
Mason 22.0 km
Newton Municipal Airport 22.2 km
McGregor Aeroporto 22.4 km
Crystal Airport 22.6 km
Rush City Rgnl Arpt 23.4 km
Austin Municipal Airport 24.6 km
Albert Lea Municipal Airport 24.6 km
Pella Aeroporto 29.3 km
Field of Dreams AP 29.4 km
Marshall Town Muni 29.4 km
Chariton 32.4 km
Flying Cloud Airport 33.5 km
Centerville Aeroporto 35.7 km
Falls Intl. Airport 36.8 km
Dodge Center Airport 37.2 km
Range Regional Airport 37.5 km
Orr Regional Airport 38.8 km
Moose Lake Co Arpt 40.6 km
Grand Rapids 44.6 km
Waseca Municipal Airport 44.9 km
Ankeny Regional Airport 48.0 km
Grinnell Aeroporto 48.9 km
Princeton Municipal Airport 51.5 km
Osceola Aeroporto 52.2 km
Forest City Aeroporto 53.4 km
Cook Muni Arpt 53.6 km
Ames Aeroporto 54.4 km
Aeroporto Internazionale di Des Moines 58.9 km
Bigfork 59.8 km
Northeast Iowa Regional Airport 60.3 km
Aitkin Municipal Airport 61.0 km
Osceola Muni 64.2 km
New Richmond Regional Airport 68.7 km
Clarion Municipal Airport 69.6 km
Kirksville Regional Airport 71.0 km
Rochester Intl. Airport 72.4 km
Cloquet Carlton 73.4 km
Eveleth Muni (Awos) 74.1 km
Red Wing Regional Airport 74.2 km
Oskaloosa Aeroporto 75.1 km
Scotts Seaplane Base 77.1 km
Buffalo Aeroporto 77.6 km
Boone Aeroporto 79.6 km
Ottumwa Regional Airport 80.0 km
Webster City 80.9 km
Waterloo Regional Airport 84.1 km
Mankato Regional Airport 85.4 km
Burnett County Airport 87.1 km
Lamoni 92.8 km
Maple Lake Municipal Airport 93.6 km
St. Cloud Regional Airport 102.3 km
Glencoe Aeroporto 104.7 km
Duluth Aeroporto 108.3 km
Fillmore County Airport 108.7 km
Brainerd Lakes Regional Airport 110.3 km
Perry Municipal Airport 113.9 km
Fort Dodge Regional Airport 115.8 km
Richard I. Bong Airport 118.2 km
Longville Municipal Airport 118.2 km
Sky Harbor Airport & Seaplane Base 119.3 km
Algona Municipal Airport 124.7 km
Vinton Aeroporto 125.6 km
Cumberland Municipal Airport 130.2 km
Fairfield Municipal Airport 130.9 km
Oelwen 132.0 km
Little Falls/Morrison 134.0 km
Independence Municipal Airport 134.2 km
Hutchinson Municipal Airport 137.3 km
Creston 137.7 km
Pine River 138.3 km
Fairmont Municipal Airport 141.1 km
Menomonie Municipal Airport 142.9 km
Ely Municipal Airport 147.4 km
Solon Springs Muni 148.7 km
New Ulm Municipal Airport 150.3 km
Litchfield Aeroporto 151.3 km
Waskish Muni Airpt 154.5 km
Two Harbors 156.3 km
Decorah Aeroporto 157.8 km
Rice Lake Regional Airport 159.6 km
Eastern Iowa Airport 160.0 km
Winona Municipal Airport 161.4 km
Baudette Intl. Airport 164.5 km
Washington 165.7 km
Walker Aeroporto 167.7 km
Atikokan 169.9 km
Paynesville Aeroporto 177.0 km
Estherville Muni 178.3 km
Iowa City Municipal Airport 179.3 km