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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.


Estaciones meteorológicas cercanas - Smithfield Distancia
Johnston County Airport 0.8 km
Triangle North Executive Airport 12.5 km
Clinton Airport 12.7 km
Henderson- Oxford Airport 24.6 km
Curtis L. Brown Jr. Field 30.1 km
Clarksville 30.8 km
Chase City Airport 30.9 km
Lunenburg Airport 39.1 km
Harnett Regional Jetport Airport 39.1 km
Farmville 41.0 km
Raleigh 45.1 km
Mecklenburg-Bruns. Arpt 45.6 km
Columbus County Airport 46.2 km
Wayne Executive Jetport 46.4 km
Seymour Johnson Air Force Base 46.6 km
Duplin 48.0 km
Crewe Airport 49.0 km
Southport Airport 50.1 km
Grand Strand Airport 53.7 km
Rocky Mount- Wilson Regional Airport 54.3 km
Fayetteville Regional Airport 57.0 km
William M Tuck 57.6 km
Charlottesville- Albemarle Airport 58.7 km
Ft. Pickett / Blackstone 59.0 km
Wilmington Intl. Airport 61.1 km
Simmons Army Airfield 61.9 km
Gordonsville Muni 64.1 km
Person County Airport 68.8 km
Pope Field 71.0 km
Luray Caverns Airport 71.1 km
Lawrenceville/brunswick Muni 71.5 km
Orange Airport 72.2 km
Louisa 73.2 km
Myrtle Beach Intl. Airport 73.4 km
Front Royal-warren County 77.6 km
New Market Airport 77.9 km
Brookneal 78.7 km
Raleigh Executive Jetport 79.9 km
Shenandoah Valley Regional Airport 83.0 km
Eagle's Nest Airport 83.6 km
Kinston Regional Jetport 85.5 km
Winchester Regional Airport 85.9 km
Albert J. Ellis Airport 86.9 km
Culpeper Regional Airport 87.2 km
Bridgewater Airport 89.2 km
Conway Airport 90.2 km
Lake Anna AP 90.4 km
Eastern WV Regional Airport 98.7 km
Greater Cumberland Regional Airport 99.3 km
Greater Cumberland Regional Airport 99.3 km
Warrenton Airport 102.8 km
Emporia Airport 103.8 km
Petersburg 103.8 km
Chesterfield County Airport 105.2 km
Marine Corps Air Station New River 106.8 km
Danville Regional Airport 108.1 km
Marion Airport 109.8 km
Laurinburg- Maxton Airport 110.6 km
Pitt- Greenville Airport 111.1 km
Petersburg/Grant C. Arpt 112.1 km
Moore County Airport 112.4 km
Georgetown Airport 114.6 km
Hanover 117.2 km
Hagerstown Regional Airport 120.2 km
Burlington- Alamance Regional Airport 121.1 km
Manassas Regional Airport 121.5 km
Fredericksburg Airport 121.8 km
Leesburg Executive Airport 122.6 km
Stafford Regional Airport 122.9 km
Camp Mackall 124.8 km
Siler City Muni 124.8 km
Richmond Intl. Airport 125.6 km
Dulles Intl. Airport 129.8 km
Tri-County Airport 136.2 km
McHenry Airport 137.7 km
Marine Corps Air Facility Quantico Airport 138.7 km
Frederick Airport 144.4 km
New Kent Airport 147.4 km
Warren Airport 148.5 km
Coastal Carolina Regional Airport 148.8 km
Marine Corps Auxiliary Landing Field Bogue 152.0 km
Florence Airport 153.0 km
Davison Army Airfield 153.3 km
Richmond County Airport 153.8 km
Wakefield Airport 156.0 km
Montgomery Airport 160.7 km
Mount Pleasant Regional Airport 165.4 km
Asheboro Airport 167.0 km
Franklin Airport 167.4 km
Marine Corps Air Station Cherry Point 167.7 km
Kingstree Airport 168.4 km
Darlington 168.5 km
Hot Springs 169.3 km
Ronald Reagan Washington National Airport 169.4 km
Tappahannock Airport 174.0 km
Piedmont Triad Intl. Airport 174.8 km
Elkins/Randolph Field AP 177.7 km
Roanoke Airport 180.1 km
College Park Airport 182.1 km
Blue Ridge Airport 182.9 km

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