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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 - Alameda Abstand
Metropolitan Oakland Flughafen 1.9 km
San Carlos Airport 13.0 km
Hayward Executive Airport 13.6 km
San Francisco Intl. Airport 18.1 km
Palo Alto Flughafen 20.5 km
Buchanan Field Airport 25.2 km
Moffett Federal Airfield 27.7 km
Napa Flughafen 29.0 km
Half Moon Bay Airport 32.4 km
San José Flughafen 40.9 km
Marin 43.5 km
Travis Air Force Base 45.9 km
Livermore Municipal Airport 46.4 km
Nut Tree Airport 49.0 km
Petaluma Flughafen 51.9 km
Reid- Hillview Airport 52.0 km
Davis Flughafen 68.5 km
Watsonville Flughafen 68.8 km
Santa Rose Airport 80.1 km
Monterey Regional Airport 80.2 km
South County Arpt Of Santa Clara County 80.6 km
Sacramento Flughafen 91.2 km
Sacramento Executive Airport 93.9 km
Salinas Municipal Airport 94.4 km
Hollister Flughafen 104.0 km
Sacramento McClellan Airport 107.7 km
Yuba 109.4 km
Stockton Metropolitan Airport 109.9 km
Sacramento Mather Flughafen 114.4 km
Lincoln Flughafen 120.0 km
Beale Air Force Base 121.2 km
Oroville Municipal Airport 123.7 km
Chico Municipal Airport 128.4 km
Ukiah Flughafen 136.4 km
Modesto 143.0 km
Red Bluff Municipal Airport 143.5 km
Auburn Flughafen 146.3 km
Nevada 162.2 km
Redding Municipal Airport 164.6 km
Placerville Airport 174.5 km
Castle Air Force Base 186.5 km
Blue Canyon 191.4 km
Merced Regional Airport 192.9 km
Weaverville 196.2 km
Trinity Center 200.9 km
Columbia Flughafen 203.2 km
Mount Shasta 213.1 km
Paso Robles Municipal Airport 214.7 km
San Luis Obispo County Regional Airport 228.9 km
Madera Municipal Airport 239.7 km
Siskiyou 242.5 km
Truckee Tahoe Airport 250.9 km
Vandenberg Space Force Base 253.7 km
Santa Maria Public Airport 257.5 km
Lake Tahoe Airport 257.9 km
Lompoc Flughafen 264.9 km
Naval Air Station Lemoore 266.6 km
Rohnerville Airport 272.4 km
Reno Stead Airport 284.9 km
Arcata-Eureka Airport 285.0 km
Fresno Yosemite Intl. Airport 285.6 km
Alturas Flughafen 288.9 km
Carson City Flughafen 290.7 km
Reno-Tahoe Flughafen 290.9 km
Santa Ynez Flughafen 300.1 km
Hanford Municipal Airport 302.3 km
Visalia Municipal Airport 325.6 km
Santa Barbara Municipal Airport 327.4 km
Crescent City 332.5 km
Porterville Flughafen 365.9 km
Meadows Field Airport 377.6 km
Mammoth Yosemite Airport 377.9 km
Oxnard Airport 392.8 km
Naval Outlying Landing Field San Nicolas 402.3 km
Camarillo Flughafen 402.7 km
Naval Air Station Point Mugu 403.0 km
Hawthorne Industrial Airport 403.3 km
Naval Air Station Fallon Airport 404.5 km
Sandberg Airport 424.4 km
Derby Field 428.7 km
Eastern Sierra Regional Airport 430.9 km
Tehachapi Municipal Airport 446.8 km
Van Nuys Flughafen 461.8 km
Whiteman Airport 467.3 km
Santa Monica Municipal Airport 470.0 km
Burbank 475.5 km
General William J. Fox Airfield 477.2 km
Los Angeles Intl. Airport 478.2 km
Mojave Air & Space Port Flughafen 478.4 km
Hawthorne Municipal Airport 483.6 km
San Clemente Island Flughafen 484.6 km
Zamperini Field 487.3 km
Downtown Los Angeles 490.6 km
Catalina Airport 491.1 km
Long Beach Airport 504.5 km
San Gabriel Valley Airport 509.9 km
Joint Forces Training Base 514.8 km

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