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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.


Stations météo à proximité - Ortonville Distance
Wheaton Municipal (Aéroport) 10.5 km
Canby Aéroport 18.6 km
Pipestone Municipal (Aéroport) 19.7 km
Harry Stern (Aéroport) 24.4 km
Madison 26.3 km
Luverne Municipal (Aéroport) 30.5 km
Center for Earth Resources Observations 30.7 km
Fergus Falls Municipal (Aéroport) 32.0 km
Moorhead Municipal (Aéroport) 33.7 km
Sioux (Aéroport) 36.2 km
Crookston Municipal (Aéroport) 39.2 km
Le Mars Municipal (Aéroport) 39.6 km
Aéroport régional de Sioux Falls 41.5 km
Thief River Falls Regional (Aéroport) 42.6 km
Brookings Regional (Aéroport) 46.3 km
Appleton Aéroport 46.4 km
Aéroport international Hector 47.3 km
Elbow Lake 47.8 km
Orange 48.0 km
Fremont Aéroport 49.6 km
Morris Aéroport 50.3 km
Tekamah (Asos) 51.3 km
Wahoo Municipal (Aéroport) 54.9 km
Blair Aéroport 58.3 km
Mahnomen Aéroport 59.2 km
Millard (Aéroport) 60.3 km
Detroit Lakes (Aéroport) 62.1 km
Sisseton Aéroport 63.3 km
Southwest Minnesota Regional (Aéroport) 67.5 km
Sheldon 69.5 km
Slayton Aéroport 72.4 km
Wayne Aéroport 74.3 km
Hallock 74.6 km
Omaha/Eppley Field (Aéroport) 74.7 km
Offutt Air Force Base 74.8 km
Madison Municipal (Aéroport) 75.9 km
Fosston 77.2 km
Montevideo (Awos) 78.0 km
Watertown Regional (Aéroport) 81.8 km
Benson Municipal (Aéroport) 85.3 km
Council Bluffs Aéroport 86.6 km
Roseau Muni (Awos) 90.0 km
Tracy Municipal (Aéroport) 90.4 km
Grand Forks (Aéroport) 92.2 km
Worthington 94.7 km
Granite Falls Municipal (Aéroport) 95.7 km
Fourche de Winnipeg 99.9 km
Cherokee Aéroport 100.3 km
Sprague 100.7 km
Emerson 103.2 km
Winnipeg Aéroport 109.3 km
Winnipeg A Cs 111.0 km
Chan Gurney Municipal (Aéroport) 112.5 km
Chan Gurney Municipal (Aéroport) 112.5 km
Alexandria Municipal (Aéroport) 113.4 km
Grafton Aéroport 114.0 km
Columbus Municipal (Aéroport) 114.2 km
Grand Forks Air Force Base 115.1 km
Denison 121.1 km
Norfolk Regional (Aéroport) 121.6 km
Glenwood (Asos) 122.5 km
Warroad International Memorial (Aéroport) 125.9 km
Harlan Aéroport 127.1 km
Wadena Municipal (Aéroport) 134.9 km
Aéroport municipal de Storm Lake 135.2 km
Red Oak Municipal (Aéroport) 136.8 km
Gwinner Aéroport 137.1 km
Spencer Aéroport 137.2 km
Gretna 137.6 km
Cavalier Aéroport 143.1 km
Willmar Municipal (Aéroport) 143.3 km
Windom 145.5 km
Redwood Falls Muni 148.7 km
Park Rapids Municip 151.3 km
Olivia Aéroport 154.4 km
Atlantic Municipal (Aéroport) 158.5 km
Jackson Municipal (Aéroport) 160.6 km
Sauk Centre Muni 165.5 km
Bemidji Regional (Aéroport) 166.9 km
Audubon County (Aéroport) 171.1 km
Long Prairie Aéroport 172.9 km
Walhalla Aéroport 172.9 km
Flag Island 174.4 km
Barnes Aéroport 179.7 km
Staples 180.3 km
Mitchell Municipal (Aéroport) 181.2 km
Arthur N. Neu (Aéroport) 184.6 km
Oakes Aéroport 185.6 km
Estherville Muni 186.6 km
Paynesville Aéroport 186.8 km
Albion Municipal (Aéroport) 189.1 km
Carman 189.2 km
Morden 193.3 km
Walker Aéroport 198.2 km
Huron Aéroport 200.8 km
Baudette Intl. Airport 205.4 km
Litchfield Aéroport 212.4 km
Waskish Muni Airpt 213.6 km
New Ulm Municipal (Aéroport) 213.6 km