World

North America



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 - Mason Distance
Dayton- Wright Brothers Airport 7.9 km
Clermont County Airport 10.4 km
Cincinnati Municipal Lunken Airport 13.5 km
Dayton Intl. Airport 21.2 km
Butler 24.1 km
Defiance Memorial Airport 25.3 km
Darke County Airport 27.4 km
Wright-Patterson Air Force Base 28.4 km
Fulton County Airport 31.8 km
Lima Allen 33.7 km
London-Corbin Airport 35.1 km
Blue Grass Airport 36.3 km
Jackson 36.8 km
Lenawee County Airport 37.5 km
Mason Jewett Field Airport 37.7 km
Oak Ridge 37.8 km
Covington Airport 41.6 km
Lake Cumberland Regional Airport 41.6 km
Hillsdale Airport 42.0 km
Owosso Community Airport 44.6 km
Jack Barstow Airport 48.0 km
Capital Region Intl. Airport 49.7 km
Livingston County Spencer J. Hardy Airport 51.2 km
McMinn County Airport 51.7 km
Springfield- Beckley Airport 52.2 km
Cincinnati West Airport 52.8 km
MBS Intl. Airport 52.9 km
McGhee Tyson Airport 53.4 km
Bellefontaine Regional Airport 54.8 km
Stuart Powell Field 55.6 km
Wilmington Airport 55.7 km
Gratiot Community Airport 60.1 km
Toledo Express Airport 61.4 km
Fleming-Mason Airport 62.7 km
Mount Pleasant Airport 66.2 km
Fitch H. Beach Airport 66.4 km
Wayne County Airport 67.2 km
Saginaw 67.6 km
Capital City Airport 67.9 km
Western Carolina Regional Airport 68.1 km
Middlesboro Airport 70.2 km
Ann Arbor Airport 70.7 km
Cleveland Regional Jetport 70.7 km
Findlay Airport 73.1 km
Bishop Intl. Airport 74.2 km
Toledo Suburban Airport 77.0 km
Brooks Field 78.4 km
Auburn Airport 87.5 km
Branch County Memorial Airport 87.9 km
Tri-State Steuben County Airport 90.5 km
Willow Run Airport 91.8 km
Ionia Airport 92.4 km
London Madison County Airport 93.5 km
Crossville Airport 93.9 km
Toledo Executive Airport 96.3 km
Custer Airport 101.1 km
Fort Wayne Intl. Airport 101.6 km
Pontiac Oakland 105.9 km
Union County Airport 106.1 km
Lebanon-Springfield Airport 106.2 km
Tuscola Area Airport 106.9 km
Harlan Airport 108.9 km
W. K. Kellogg Airport 109.0 km
Chattanooga Metropolitan Airport 109.3 km
Franklin Airport 109.6 km
Morristown Airport 109.6 km
Jackson Julian Carr 111.5 km
Detroit Metropolitan Airport 113.0 km
Delaware 122.8 km
Lapeer Airport 122.9 km
Jonesville Airport 124.8 km
Sturgis Airport 128.5 km
Huntington Airport 129.7 km
Madison Airport 129.9 km
Bolton Field 130.0 km
Oakland/Troy Airport 130.8 km
Grosse Ile Airport 132.3 km
Delaware Airport 132.4 km
Ohio State University Airport 137.6 km
Marion Airport 138.2 km
Gerald R. Ford Intl. Airport 139.8 km
Roben- Hood Airport 140.3 km
Kalamazoo/Battle Creek Intl. Airport 142.0 km
Ross County Airport 142.1 km
Three Rivers Muni Dr Haines 146.2 km
Anderson Airport 146.8 km
Coleman A. Young Intl. Airport 148.5 km
Rickenbacker Intl. Airport 152.2 km
Bowman Field 152.5 km
Windsor Airport 152.7 km
Marion Airport 154.0 km
Bad Axe 156.3 km
John Glenn Columbus Intl. Airport 158.2 km
Harrow CDA (AUT) 159.3 km
Louisville Intl. Airport 159.9 km
Goshen Airport 166.4 km
Shelbyville Airport 167.0 km
Selfridge Air National Guard Base 168.2 km
Warsaw Airport 172.4 km
Ashland Airport 174.2 km