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Norteamérica



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.


Estaciones meteorológicas cercanas - Portsmouth Distancia
Ross Aeropuerto 12.6 km
Rickenbacker aeropuerto 14.9 km
Puerto Columbus aeropuerto 18.9 km
Ohio State University aeropuerto 22.4 km
Ashland Aeropuerto 23.7 km
Bolton Field 25.8 km
Delaware Aeropuerto 27.8 km
Marion Municipal aeropuerto 28.6 km
Fairfield County aeropuerto 36.3 km
Big Sandy Regional aeropuerto 37.5 km
Jonesville Aeropuerto 40.8 km
Jackson Julian Carr 43.6 km
Tri-State aeropuerto 44.8 km
Harrow CDA (AUT) 45.6 km
Windsor Aeropuerto 48.2 km
Union County aeropuerto 48.9 km
Coleman A. Young aeropuerto 50.4 km
Grosse Ile Municipal aeropuerto 50.5 km
Harlan Aeropuerto 51.8 km
Lonesome Pine aeropuerto 52.5 km
Knox County aeropuerto 52.9 km
Selfridge Air National Guard Base 55.0 km
Mansfield Lahm Regional aeropuerto 56.4 km
Oconee County Regional aeropuerto 56.6 km
Oakland/Troy aeropuerto 57.1 km
Morristown Aeropuerto 58.2 km
Newark- Heath aeropuerto 58.5 km
London Madison County Airport 59.1 km
Pickens County aeropuerto 61.1 km
Detroit aeropuerto 63.1 km
Anderson Aeropuerto 64.3 km
Regional de Asheville aeropuerto 64.3 km
Point Pelee CS 66.0 km
Toccoa aeropuerto 67.3 km
Toledo Executive aeropuerto 68.4 km
Custer aeropuerto 68.6 km
Tri-Cities Regional aeropuerto 69.2 km
Franklin Aeropuerto 69.8 km
Oakland 73.5 km
St. Clair 74.9 km
Willow Run aeropuerto 79.5 km
Gordon K. Bush aeropuerto 80.5 km
Findlay aeropuerto 85.1 km
Donaldson Center aeropuerto 85.2 km
Greenville Downtown aeropuerto 86.7 km
Toledo Suburban aeropuerto 87.6 km
Fleming-Mason aeropuerto 88.3 km
Middlesborough Aeropuerto 91.8 km
Elizabethton Aeropuerto 92.9 km
Lorain 93.3 km
Sarnia aeropuerto 93.8 km
Point Pleasant Aeropuerto 94.8 km
Wilmington Aeropuerto 95.0 km
Greenville-Spartanburg aeropuerto 98.4 km
Ann Arbor Municipal aeropuerto 98.7 km
Bellefontaine Regional aeropuerto 99.0 km
Springfield- Beckley Municipal aeropuerto 99.3 km
Toledo Express aeropuerto 101.5 km
Bishop aeropuerto 104.4 km
Abingdon 106.3 km
Greenwood 110.2 km
Western Carolina Regional aeropuerto 111.2 km
Lee Gilmer Memorial aeropuerto 113.7 km
Zanesville Municipal aeropuerto 118.2 km
Zanesville Municipal aeropuerto 118.2 km
Lima Allen 120.6 km
McGhee Tyson aeropuerto 120.8 km
Wayne County aeropuerto 122.5 km
Rutherfordton 123.0 km
Base de la Fuerza Aérea Wright-Patterson 123.2 km
Spartanburg Downtown Memorial aeropuerto 123.8 km
Livingston County Spencer J. Hardy aeropuerto 125.2 km
Cleveland-Hopkins aeropuerto 126.9 km
Laurens County aeropuerto 127.5 km
Chatham-Kent 127.7 km
London-Corbin aeropuerto 127.8 km
Richlands Aeropuerto 130.5 km
Ridgetown 130.6 km
Dayton aeropuerto 130.6 km
Lenawee County aeropuerto 131.7 km
Fulton County aeropuerto 135.9 km
Clermont County aeropuerto 140.4 km
Owosso Community aeropuerto 142.6 km
Dayton- Wright Brothers aeropuerto 143.3 km
Oak Ridge 146.8 km
Cleveland Burke Lakefront aeropuerto 147.0 km
Yeager aeropuerto 150.4 km
Pineville Aeropuerto 155.8 km
Foothills Regional aeropuerto 158.2 km
Shelby Aeropuerto 158.9 km
Newberry County aeropuerto 159.9 km
Cincinnati Municipal Lunken aeropuerto 163.5 km
Defiance Memorial aeropuerto 166.3 km
Akron Executive aeropuerto 168.7 km
Cuyahoga County aeropuerto 168.7 km
Mid-Ohio Valley Regional aeropuerto 169.1 km
Mason Jewett Field Aeropuerto aeropuerto 170.5 km
Akron- Canton aeropuerto 172.0 km
Cherokee County Regional aeropuerto 172.5 km
Harry Clever Field aeropuerto 172.7 km