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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.


Nächste Wetterstation - Penn Valley Abstand
Auburn Flughafen 17.8 km
Nevada 20.1 km
Lincoln Flughafen 25.1 km
Beale Air Force Base 28.1 km
Sacramento McClellan Airport 39.1 km
Sacramento Mather Flughafen 39.7 km
Yuba 43.1 km
Oroville Municipal Airport 51.6 km
Blue Canyon 52.2 km
Sacramento Executive Airport 53.0 km
Sacramento Flughafen 54.0 km
Placerville Airport 55.1 km
Stockton Metropolitan Airport 75.4 km
Davis Flughafen 77.6 km
Chico Municipal Airport 81.6 km
Modesto 93.7 km
Nut Tree Airport 98.2 km
Travis Air Force Base 99.6 km
Columbia Flughafen 108.5 km
Livermore Municipal Airport 112.2 km
Truckee Tahoe Airport 117.1 km
Buchanan Field Airport 119.8 km
Castle Air Force Base 124.5 km
Reid- Hillview Airport 129.4 km
Red Bluff Municipal Airport 131.1 km
South County Arpt Of Santa Clara County 131.2 km
Merced Regional Airport 132.2 km
Lake Tahoe Airport 133.3 km
Napa Flughafen 135.1 km
San José Flughafen 135.3 km
Hollister Flughafen 135.8 km
Hayward Executive Airport 137.2 km
Moffett Federal Airfield 141.9 km
Metropolitan Oakland Flughafen 143.5 km
Palo Alto Flughafen 145.1 km
Redding Municipal Airport 145.8 km
Watsonville Flughafen 147.7 km
Reno Stead Airport 147.9 km
Alturas Flughafen 149.9 km
Salinas Municipal Airport 154.0 km
San Carlos Airport 154.3 km
Reno-Tahoe Flughafen 156.8 km
Carson City Flughafen 161.5 km
San Francisco Intl. Airport 162.7 km
Marin 164.9 km
Petaluma Flughafen 167.7 km
Monterey Regional Airport 169.4 km
Madera Municipal Airport 173.7 km
Mount Shasta 176.8 km
Half Moon Bay Airport 176.9 km
Crater Lake 181.3 km
Santa Rose Airport 186.2 km
Lake County Airport 190.2 km
Trinity Center 198.2 km
Siskiyou 208.3 km
Paso Robles Municipal Airport 211.1 km
Naval Air Station Lemoore 212.5 km
Fresno Yosemite Intl. Airport 213.3 km
Weaverville 214.0 km
Ukiah Flughafen 224.6 km
San Luis Obispo County Regional Airport 234.5 km
Hanford Municipal Airport 238.3 km
Visalia Municipal Airport 256.1 km
Medford Flughafen 264.6 km
Mammoth Yosemite Airport 275.3 km
Naval Air Station Fallon Airport 276.6 km
Hawthorne Industrial Airport 286.1 km
Porterville Flughafen 295.0 km
Derby Field 295.2 km
Meadows Field Airport 317.2 km
Eastern Sierra Regional Airport 329.5 km
Rohnerville Airport 338.2 km
Roseburg Regional Airport 339.9 km
Arcata-Eureka Airport 345.7 km
Burns Municipal Airport 348.5 km
Crescent City 373.3 km
Tehachapi Municipal Airport 379.2 km
Brookings Airport 386.6 km
Winnemucca Flughafen 387.9 km
Mojave Air & Space Port Flughafen 407.3 km
Rome State Airport 413.1 km
Southwest Oregon Regional Airport 425.2 km
Naval Air Weapons Station China Lake 434.4 km
Tonopah Airport 460.6 km

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