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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 - Cupertino Abstand
Moffett Federal Airfield 7.1 km
San José Flughafen 12.6 km
Palo Alto Flughafen 13.5 km
Hayward Executive Airport 23.6 km
Reid- Hillview Airport 24.2 km
San Carlos Airport 27.3 km
Metropolitan Oakland Flughafen 32.8 km
Livermore Municipal Airport 33.7 km
Watsonville Flughafen 35.2 km
Buchanan Field Airport 40.4 km
San Francisco Intl. Airport 43.3 km
Monterey Regional Airport 46.9 km
South County Arpt Of Santa Clara County 50.2 km
Half Moon Bay Airport 53.4 km
Travis Air Force Base 58.1 km
Napa Flughafen 60.7 km
Salinas Municipal Airport 60.9 km
Nut Tree Airport 63.6 km
Hollister Flughafen 73.3 km
Marin 76.8 km
Davis Flughafen 77.5 km
Petaluma Flughafen 85.5 km
Sacramento Executive Airport 92.7 km
Stockton Metropolitan Airport 94.0 km
Sacramento Flughafen 95.6 km
Sacramento McClellan Airport 106.6 km
Sacramento Mather Flughafen 109.5 km
Santa Rose Airport 113.5 km
Yuba 117.7 km
Lincoln Flughafen 120.9 km
Modesto 122.1 km
Beale Air Force Base 126.4 km
Oroville Municipal Airport 136.3 km
Auburn Flughafen 142.9 km
Chico Municipal Airport 147.7 km
Nevada 160.3 km
Castle Air Force Base 163.2 km
Placerville Airport 164.7 km
Merced Regional Airport 168.8 km
Ukiah Flughafen 170.0 km
Red Bluff Municipal Airport 170.5 km
Paso Robles Municipal Airport 182.3 km
Columbia Flughafen 185.1 km
Blue Canyon 186.3 km
Redding Municipal Airport 191.9 km
San Luis Obispo County Regional Airport 195.6 km
Madera Municipal Airport 214.2 km
Vandenberg Space Force Base 219.9 km
Santa Maria Public Airport 224.2 km
Weaverville 228.5 km
Lompoc Flughafen 231.3 km
Trinity Center 231.5 km
Naval Air Station Lemoore 238.4 km
Mount Shasta 240.1 km
Truckee Tahoe Airport 241.2 km
Lake Tahoe Airport 244.6 km
Fresno Yosemite Intl. Airport 259.7 km
Santa Ynez Flughafen 267.2 km
Siskiyou 270.5 km
Hanford Municipal Airport 274.8 km
Reno Stead Airport 275.7 km
Carson City Flughafen 278.0 km
Reno-Tahoe Flughafen 280.2 km
Alturas Flughafen 294.6 km
Santa Barbara Municipal Airport 294.7 km
Visalia Municipal Airport 298.4 km
Rohnerville Airport 306.1 km
Arcata-Eureka Airport 318.8 km
Porterville Flughafen 338.4 km
Meadows Field Airport 348.4 km
Mammoth Yosemite Airport 356.1 km
Oxnard Airport 361.0 km
Crescent City 366.5 km
Naval Outlying Landing Field San Nicolas 369.0 km
Camarillo Flughafen 371.1 km
Naval Air Station Point Mugu 371.3 km
Hawthorne Industrial Airport 384.8 km
Naval Air Station Fallon Airport 389.5 km
Sandberg Airport 394.3 km
Eastern Sierra Regional Airport 408.2 km
Derby Field 415.9 km
Tehachapi Municipal Airport 418.0 km
Van Nuys Flughafen 431.3 km
Whiteman Airport 436.9 km
Santa Monica Municipal Airport 439.2 km
Burbank 445.1 km
Los Angeles Intl. Airport 447.4 km
General William J. Fox Airfield 448.0 km
Mojave Air & Space Port Flughafen 449.9 km
San Clemente Island Flughafen 452.3 km
Hawthorne Municipal Airport 452.8 km
Zamperini Field 456.3 km
Catalina Airport 459.5 km
Downtown Los Angeles 460.2 km
Long Beach Airport 473.8 km
San Gabriel Valley Airport 479.8 km
Joint Forces Training Base 484.3 km

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