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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 - Defiance Απόσταση
Jackson 11.5 km
Mason Jewett Field Airport 13.4 km
Darke County Airport 17.6 km
Hillsdale Municipal Airport 19.6 km
Butler 23.9 km
Cincinnati Municipal Lunken Airport 24.1 km
Capital Region International Airport 25.5 km
Dayton- Wright Brothers Airport 27.9 km
Jack Barstow Municipal Airport 30.9 km
Fulton County Airport 32.4 km
Clermont County Airport 33.9 km
Owosso Community Airport 36.0 km
Gratiot Community Airport 36.3 km
Dayton International Airport 37.2 km
Covington Airport 37.4 km
Lenawee County Airport 38.0 km
Blue Grass Airport 40.6 km
Mount Pleasant Municipal Airport 42.7 km
Roscommon 43.7 km
Wright-Patterson Air Force Base 44.1 km
MBS International Airport 44.5 km
Cincinnati West Airport 45.4 km
Lima Allen 45.7 km
Fitch H. Beach Airport 45.9 km
Cheboygan Airport 47.7 km
Gaylord Airport 49.0 km
Grayling Airport 49.5 km
Lake Cumberland Regional Airport 50.0 km
Livingston County Spencer J. Hardy Airport 50.3 km
Mackinac Island Airport 54.0 km
Stuart Powell Field 55.6 km
Brooks Field 60.1 km
London-Corbin Airport 60.2 km
Pellston Regional Airport 60.2 km
Capital City Airport 62.9 km
Saginaw 66.2 km
Springfield- Beckley Municipal Airport 67.1 km
Bellefontaine Regional Airport 67.4 km
Toledo Express Airport 68.7 km
Harbor Springs Municipal Airport 69.6 km
Branch County Memorial Airport 71.0 km
Wilmington Airport 72.0 km
Auburn Airport 72.1 km
Ionia Airport 73.5 km
Tri-State Steuben County Airport 74.5 km
Ann Arbor Municipal Airport 76.0 km
Bishop International Airport 76.5 km
Rogers City Airport 81.3 km
Fleming-Mason Airport 81.5 km
Findlay Airport 83.6 km
Toledo Suburban Airport 84.9 km
Fort Wayne International Airport 87.3 km
W. K. Kellogg Airport 92.3 km
Antrim 94.6 km
Willow Run Airport 98.9 km
Lebanon-Springfield Airport 99.0 km
Charlevoix Airport 102.6 km
Alpena 104.1 km
Toledo Executive Airport 105.8 km
London Madison County Airport 107.5 km
Custer Airport 109.5 km
Delaware 110.0 km
Tuscola Area Airport 110.9 km
Pontiac Oakland 112.4 km
Sturgis Airport 113.3 km
Wexford 115.0 km
Huntington Airport 115.9 km
Oscoda- Wurtsmith Airport 119.0 km
Union County Airport 119.3 km
Madison Airport 119.4 km
Detroit Metropolitan Airport 121.1 km
Roben- Hood Airport 122.8 km
Gerald R. Ford International Airport 123.4 km
Kalamazoo/Battle Creek International Airport 126.5 km
Lapeer Airport 129.1 km
Jackson Julian Carr 130.3 km
Three Rivers Muni Dr Haines 131.1 km
Cherry Capital Airport 133.9 km
Anderson Municipal Airport 134.1 km
Beaver Island Airport 134.7 km
Oakland/Troy Airport 138.7 km
Marion Airport 140.8 km
Grosse Ile Municipal Airport 141.3 km
Bowman Field 142.3 km
Bolton Field 143.9 km
Delaware Airport 145.5 km
Louisville International Airport 149.6 km
Marion Municipal Airport 150.5 km
Ohio State University Airport 151.0 km
Goshen Municipal Airport 152.1 km
Shelbyville Municipal Airport 154.9 km
Ross County Airport 156.8 km
Coleman A. Young International Airport 157.3 km
Warsaw Municipal Airport 158.4 km
Γουίντσορ Αεροδρόμιο 161.8 km
Bad Axe 162.3 km
Indianapolis Mount Comfort 165.4 km
Rickenbacker International Airport 166.2 km
Columbus Municipal Airport 166.2 km