World

USA



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 - Norwalk Distance
Mansfield Lahm Regional Airport 12.6 km
Point Pelee CS 14.9 km
Knox County Airport 17.1 km
Fairfield County Airport 21.7 km
St. Clair 25.7 km
Newark- Heath Airport 25.7 km
Selfridge Air National Guard Base 30.9 km
Harrow CDA (AUT) 33.4 km
John Glenn Columbus Intl. Airport 34.3 km
Ashland Airport 40.6 km
Rickenbacker Intl. Airport 40.6 km
Windsor Airport 41.5 km
Tri-State Airport 42.1 km
Sarnia Chris Hadfield Airport 42.7 km
Sarnia Climate 43.5 km
Harbor Beach(Ramos) 44.1 km
Coleman A. Young Intl. Airport 46.5 km
Lorain 48.3 km
Big Sandy Regional Airport 50.0 km
Marion Airport 50.9 km
Ross County Airport 51.8 km
Gordon K. Bush Airport 52.5 km
Ohio State University Airport 52.6 km
Bad Axe 54.0 km
Delaware Airport 57.0 km
Bolton Field 60.5 km
Grosse Ile Airport 60.5 km
Oakland/Troy Airport 64.9 km
Point Pleasant Airport 67.2 km
Great Duck Island 72.5 km
Lapeer Airport 77.0 km
Detroit Metropolitan Airport 80.9 km
Chatham-Kent 81.2 km
Wayne County Airport 81.5 km
Zanesville Airport 82.1 km
Zanesville Airport 82.1 km
Union County Airport 83.0 km
Cleveland Hopkins Intl. Airport 83.5 km
Ridgetown 83.6 km
Pontiac Oakland 91.1 km
Custer Airport 91.5 km
Jackson Julian Carr 92.5 km
Toledo Executive Airport 94.7 km
London Madison County Airport 95.8 km
Tuscola Area Airport 97.0 km
Oscoda- Wurtsmith Airport 97.4 km
Willow Run Airport 102.9 km
Cleveland Burke Lakefront Airport 104.0 km
Goderich 107.2 km
Richlands Airport 110.8 km
Cove Island 115.8 km
Toledo Suburban Airport 115.8 km
Findlay Airport 116.9 km
Alpena 117.4 km
Yeager Airport 121.4 km
Tobermory 125.1 km
Ann Arbor Airport 125.7 km
Cuyahoga County Airport 126.3 km
Akron Executive Airport 128.1 km
Bishop Intl. Airport 128.2 km
Pineville Airport 130.3 km
Fleming-Mason Airport 130.4 km
Toledo Express Airport 131.8 km
Akron- Canton Airport 131.8 km
Wilmington Airport 133.9 km
Harry Clever Field Airport 134.1 km
Bellefontaine Regional Airport 134.4 km
Mid-Ohio Valley Regional Airport 134.9 km
Springfield- Beckley Airport 136.7 km
Willoughby 136.7 km
Saginaw 141.6 km
Rogers City Airport 144.2 km
Killarney 145.5 km
Portage County Regional Airport 152.4 km
Livingston County Spencer J. Hardy Airport 153.3 km
Lima Allen 156.2 km
Wright-Patterson Air Force Base 160.6 km
Lenawee County Airport 163.0 km
London Airport 165.5 km
London CS 165.6 km
MBS Intl. Airport 165.9 km
Dayton Intl. Airport 167.9 km
Fulton County Airport 168.2 km
Mercer County Airport 169.3 km
Owosso Community Airport 170.9 km
London-Corbin Airport 171.8 km
Raleigh 175.6 km
Wiarton Airport 177.5 km
Clermont County Airport 179.5 km
Dayton- Wright Brothers Airport 181.2 km
Jack Barstow Airport 185.6 km
Defiance Memorial Airport 200.4 km
Mason Jewett Field Airport 201.8 km
Cincinnati Municipal Lunken Airport 202.4 km
Jackson 206.3 km
Mount Forest 212.3 km
Butler 212.8 km
Darke County Airport 213.6 km
Northeast Ohio Regional Airport 215.4 km
Youngstown 217.1 km