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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 - San Rafael Abstand
Marin 13.2 km
Petaluma Flughafen 21.8 km
San Francisco Intl. Airport 23.8 km
Half Moon Bay Airport 26.1 km
Napa Flughafen 29.0 km
Metropolitan Oakland Flughafen 34.1 km
San Carlos Airport 38.0 km
Hayward Executive Airport 45.9 km
Santa Rose Airport 49.0 km
Buchanan Field Airport 50.1 km
Palo Alto Flughafen 51.5 km
Moffett Federal Airfield 59.3 km
Travis Air Force Base 65.8 km
Nut Tree Airport 66.0 km
San José Flughafen 73.0 km
Livermore Municipal Airport 77.5 km
Reid- Hillview Airport 84.4 km
Davis Flughafen 86.6 km
Watsonville Flughafen 99.9 km
Ukiah Flughafen 105.5 km
Monterey Regional Airport 108.6 km
Sacramento Flughafen 110.4 km
South County Arpt Of Santa Clara County 112.9 km
Sacramento Executive Airport 116.6 km
Yuba 124.1 km
Salinas Municipal Airport 125.6 km
Sacramento McClellan Airport 129.5 km
Chico Municipal Airport 130.6 km
Oroville Municipal Airport 133.5 km
Red Bluff Municipal Airport 134.1 km
Hollister Flughafen 136.3 km
Beale Air Force Base 137.7 km
Sacramento Mather Flughafen 138.2 km
Stockton Metropolitan Airport 139.2 km
Lincoln Flughafen 139.8 km
Redding Municipal Airport 153.7 km
Auburn Flughafen 168.1 km
Modesto 173.5 km
Weaverville 174.6 km
Nevada 182.6 km
Trinity Center 183.2 km
Placerville Airport 199.6 km
Mount Shasta 201.8 km
Blue Canyon 213.2 km
Castle Air Force Base 217.6 km
Merced Regional Airport 224.2 km
Siskiyou 229.1 km
Columbia Flughafen 232.2 km
Rohnerville Airport 241.6 km
Paso Robles Municipal Airport 246.7 km
Arcata-Eureka Airport 254.5 km
San Luis Obispo County Regional Airport 260.3 km
Madera Municipal Airport 271.3 km
Truckee Tahoe Airport 275.1 km
Lake Tahoe Airport 284.1 km
Vandenberg Space Force Base 284.5 km
Santa Maria Public Airport 288.9 km
Lompoc Flughafen 296.0 km
Naval Air Station Lemoore 298.8 km
Alturas Flughafen 300.9 km
Crescent City 303.8 km
Reno Stead Airport 308.4 km
Reno-Tahoe Flughafen 315.3 km
Carson City Flughafen 316.2 km
Fresno Yosemite Intl. Airport 317.2 km
Santa Ynez Flughafen 331.9 km
Hanford Municipal Airport 334.4 km
Visalia Municipal Airport 357.5 km
Santa Barbara Municipal Airport 359.3 km
Porterville Flughafen 397.9 km
Mammoth Yosemite Airport 408.0 km
Meadows Field Airport 409.9 km
Oxnard Airport 425.0 km
Naval Air Station Fallon Airport 431.0 km
Hawthorne Industrial Airport 431.7 km
Naval Outlying Landing Field San Nicolas 433.7 km
Camarillo Flughafen 435.0 km
Naval Air Station Point Mugu 435.3 km
Derby Field 453.9 km
Sandberg Airport 456.7 km
Eastern Sierra Regional Airport 461.3 km
Tehachapi Municipal Airport 479.1 km
Van Nuys Flughafen 494.2 km
Whiteman Airport 499.6 km
Santa Monica Municipal Airport 502.4 km
Burbank 507.8 km
General William J. Fox Airfield 509.5 km
Los Angeles Intl. Airport 510.5 km
Mojave Air & Space Port Flughafen 510.6 km
Hawthorne Municipal Airport 516.0 km
San Clemente Island Flughafen 516.7 km
Zamperini Field 519.6 km
Downtown Los Angeles 523.0 km
Catalina Airport 523.4 km
Long Beach Airport 536.8 km
San Gabriel Valley Airport 542.3 km
Joint Forces Training Base 547.2 km

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