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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 - Hercules Abstand
Napa Flughafen 13.1 km
Metropolitan Oakland Flughafen 16.3 km
Buchanan Field Airport 22.3 km
Hayward Executive Airport 24.7 km
San Francisco Intl. Airport 27.2 km
San Carlos Airport 28.7 km
Palo Alto Flughafen 34.9 km
Marin 35.1 km
Travis Air Force Base 38.6 km
Nut Tree Airport 39.8 km
Half Moon Bay Airport 40.2 km
Moffett Federal Airfield 41.1 km
Petaluma Flughafen 42.4 km
Livermore Municipal Airport 51.4 km
San José Flughafen 52.4 km
Davis Flughafen 60.4 km
Reid- Hillview Airport 62.3 km
Santa Rose Airport 70.3 km
Watsonville Flughafen 81.6 km
Sacramento Flughafen 84.0 km
Sacramento Executive Airport 89.2 km
South County Arpt Of Santa Clara County 90.6 km
Monterey Regional Airport 94.8 km
Yuba 99.9 km
Sacramento McClellan Airport 102.4 km
Salinas Municipal Airport 106.7 km
Sacramento Mather Flughafen 110.6 km
Stockton Metropolitan Airport 111.5 km
Oroville Municipal Airport 112.1 km
Beale Air Force Base 112.7 km
Lincoln Flughafen 113.4 km
Hollister Flughafen 113.8 km
Chico Municipal Airport 114.4 km
Ukiah Flughafen 125.7 km
Red Bluff Municipal Airport 127.7 km
Auburn Flughafen 141.1 km
Modesto 146.3 km
Redding Municipal Airport 148.7 km
Nevada 156.1 km
Placerville Airport 171.8 km
Weaverville 180.8 km
Trinity Center 185.1 km
Blue Canyon 186.3 km
Castle Air Force Base 190.6 km
Mount Shasta 197.2 km
Merced Regional Airport 197.4 km
Columbia Flughafen 204.3 km
Paso Robles Municipal Airport 225.2 km
Siskiyou 226.6 km
San Luis Obispo County Regional Airport 240.4 km
Madera Municipal Airport 244.8 km
Truckee Tahoe Airport 247.5 km
Crater Lake 251.8 km
Lake Tahoe Airport 256.2 km
Rohnerville Airport 261.0 km
Vandenberg Space Force Base 265.9 km
Santa Maria Public Airport 269.0 km
Medford Flughafen 270.4 km
Arcata-Eureka Airport 273.2 km
Naval Air Station Lemoore 273.4 km
Lompoc Flughafen 276.9 km
Alturas Flughafen 278.7 km
Reno Stead Airport 281.0 km
Reno-Tahoe Flughafen 287.7 km
Carson City Flughafen 288.4 km
Fresno Yosemite Intl. Airport 290.7 km
Hanford Municipal Airport 308.5 km
Santa Ynez Flughafen 311.0 km
Lake County Airport 317.0 km
Crescent City 319.4 km
Visalia Municipal Airport 331.4 km
Brookings Airport 336.8 km
Santa Barbara Municipal Airport 338.0 km
Porterville Flughafen 372.0 km
Mammoth Yosemite Airport 380.3 km
Meadows Field Airport 384.8 km
Oxnard Airport 402.3 km
Naval Air Station Fallon Airport 403.1 km
Hawthorne Industrial Airport 403.7 km
Camarillo Flughafen 412.0 km
Naval Air Station Point Mugu 412.5 km
Derby Field 426.2 km
Sandberg Airport 432.3 km
Eastern Sierra Regional Airport 433.7 km
Tehachapi Municipal Airport 453.7 km
Van Nuys Flughafen 470.1 km
Whiteman Airport 475.4 km
Santa Monica Municipal Airport 478.5 km
Burbank 483.6 km
General William J. Fox Airfield 484.4 km
Mojave Air & Space Port Flughafen 485.0 km
Downtown Los Angeles 498.8 km
San Gabriel Valley Airport 517.7 km

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