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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 - Foresthill Abstand
Placerville Airport 19.1 km
Nevada 21.3 km
Blue Canyon 21.9 km
Auburn Flughafen 26.4 km
Lincoln Flughafen 56.1 km
Sacramento Mather Flughafen 56.4 km
Sacramento McClellan Airport 64.2 km
Beale Air Force Base 65.4 km
Columbia Flughafen 73.3 km
Sacramento Executive Airport 77.2 km
Stockton Metropolitan Airport 77.3 km
Modesto 78.9 km
Yuba 80.0 km
Truckee Tahoe Airport 81.8 km
Sacramento Flughafen 84.3 km
Oroville Municipal Airport 90.4 km
Lake Tahoe Airport 95.2 km
Castle Air Force Base 97.3 km
Merced Regional Airport 104.3 km
Davis Flughafen 107.7 km
Reno Stead Airport 114.7 km
Chico Municipal Airport 120.2 km
Reno-Tahoe Flughafen 122.0 km
Carson City Flughafen 124.9 km
Nut Tree Airport 127.8 km
Travis Air Force Base 127.9 km
Livermore Municipal Airport 131.3 km
Hollister Flughafen 136.3 km
South County Arpt Of Santa Clara County 138.4 km
Madera Municipal Airport 140.9 km
Reid- Hillview Airport 144.5 km
Buchanan Field Airport 146.0 km
Alturas Flughafen 146.3 km
San José Flughafen 152.8 km
Watsonville Flughafen 158.4 km
Salinas Municipal Airport 158.4 km
Hayward Executive Airport 160.9 km
Moffett Federal Airfield 162.2 km
Napa Flughafen 165.7 km
Palo Alto Flughafen 166.8 km
Metropolitan Oakland Flughafen 169.1 km
Red Bluff Municipal Airport 169.6 km
Fresno Yosemite Intl. Airport 177.8 km
San Carlos Airport 178.2 km
Monterey Regional Airport 178.8 km
Naval Air Station Lemoore 180.5 km
Redding Municipal Airport 183.6 km
Lake County Airport 186.4 km
San Francisco Intl. Airport 188.8 km
Paso Robles Municipal Airport 191.2 km
Marin 196.4 km
Petaluma Flughafen 200.2 km
Half Moon Bay Airport 203.1 km
Hanford Municipal Airport 203.6 km
Crater Lake 206.0 km
Mount Shasta 211.8 km
San Luis Obispo County Regional Airport 215.4 km
Visalia Municipal Airport 220.3 km
Santa Rose Airport 220.8 km
Trinity Center 235.8 km
Mammoth Yosemite Airport 236.5 km
Naval Air Station Fallon Airport 240.3 km
Siskiyou 242.6 km
Hawthorne Industrial Airport 247.9 km
Weaverville 252.5 km
Porterville Flughafen 258.5 km
Derby Field 260.9 km
Ukiah Flughafen 261.8 km
Meadows Field Airport 281.8 km
Eastern Sierra Regional Airport 290.6 km
Medford Flughafen 299.1 km
Burns Municipal Airport 330.7 km
Tehachapi Municipal Airport 342.4 km
Winnemucca Flughafen 354.9 km
Mojave Air & Space Port Flughafen 370.0 km
Roseburg Regional Airport 374.2 km
Rohnerville Airport 377.0 km
Arcata-Eureka Airport 384.6 km
Rome State Airport 385.3 km
Naval Air Weapons Station China Lake 395.9 km
Crescent City 411.8 km
Tonopah Airport 422.4 km
Brookings Airport 424.8 km
Southwest Oregon Regional Airport 461.6 km
Bicycle Lake Army Airfield 510.0 km
Caldwell Flughafen 530.6 km
Nampa Municipal Airport 540.0 km
Mercury/Desert Rock 552.6 km
Boise Flughafen 569.7 km

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