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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 - Hayward Abstand
Hayward Executive Airport 0.0 km
Metropolitan Oakland Flughafen 11.8 km
Palo Alto Flughafen 11.8 km
Moffett Federal Airfield 16.5 km
San Carlos Airport 17.3 km
Buchanan Field Airport 20.1 km
San José Flughafen 28.0 km
San Francisco Intl. Airport 29.8 km
Livermore Municipal Airport 33.5 km
Napa Flughafen 37.2 km
Reid- Hillview Airport 38.7 km
Travis Air Force Base 40.9 km
Half Moon Bay Airport 43.6 km
Nut Tree Airport 45.3 km
Marin 56.6 km
Watsonville Flughafen 56.9 km
Davis Flughafen 62.8 km
Petaluma Flughafen 64.8 km
South County Arpt Of Santa Clara County 67.3 km
Monterey Regional Airport 70.4 km
Salinas Municipal Airport 82.2 km
Sacramento Flughafen 84.1 km
Sacramento Executive Airport 85.0 km
Hollister Flughafen 90.8 km
Santa Rose Airport 93.0 km
Stockton Metropolitan Airport 97.4 km
Sacramento McClellan Airport 99.0 km
Yuba 104.1 km
Sacramento Mather Flughafen 104.6 km
Lincoln Flughafen 112.0 km
Beale Air Force Base 114.8 km
Oroville Municipal Airport 120.4 km
Chico Municipal Airport 128.3 km
Modesto 129.9 km
Auburn Flughafen 137.1 km
Red Bluff Municipal Airport 148.0 km
Ukiah Flughafen 149.2 km
Nevada 153.6 km
Placerville Airport 163.7 km
Redding Municipal Airport 169.3 km
Castle Air Force Base 173.2 km
Merced Regional Airport 179.5 km
Blue Canyon 181.9 km
Columbia Flughafen 190.7 km
Paso Robles Municipal Airport 201.7 km
Weaverville 204.9 km
Trinity Center 208.1 km
San Luis Obispo County Regional Airport 216.3 km
Mount Shasta 217.6 km
Madera Municipal Airport 226.2 km
Truckee Tahoe Airport 240.3 km
Vandenberg Space Force Base 241.5 km
Santa Maria Public Airport 244.9 km
Lake Tahoe Airport 246.4 km
Siskiyou 247.8 km
Lompoc Flughafen 252.6 km
Naval Air Station Lemoore 253.0 km
Fresno Yosemite Intl. Airport 272.1 km
Reno Stead Airport 274.5 km
Carson City Flughafen 279.4 km
Reno-Tahoe Flughafen 280.1 km
Alturas Flughafen 283.3 km
Rohnerville Airport 284.9 km
Santa Ynez Flughafen 287.3 km
Hanford Municipal Airport 288.8 km
Arcata-Eureka Airport 297.3 km
Visalia Municipal Airport 312.0 km
Santa Barbara Municipal Airport 314.4 km
Crescent City 344.0 km
Porterville Flughafen 352.4 km
Meadows Field Airport 364.0 km
Mammoth Yosemite Airport 364.9 km
Oxnard Airport 379.5 km
Camarillo Flughafen 389.4 km
Naval Outlying Landing Field San Nicolas 389.6 km
Naval Air Station Point Mugu 389.8 km
Hawthorne Industrial Airport 390.8 km
Naval Air Station Fallon Airport 392.8 km
Sandberg Airport 410.9 km
Derby Field 417.5 km
Eastern Sierra Regional Airport 417.8 km
Tehachapi Municipal Airport 433.3 km
Van Nuys Flughafen 448.3 km
Whiteman Airport 453.8 km
Santa Monica Municipal Airport 456.5 km
Burbank 462.0 km
General William J. Fox Airfield 463.6 km
Los Angeles Intl. Airport 464.7 km
Mojave Air & Space Port Flughafen 464.8 km
Hawthorne Municipal Airport 470.2 km
San Clemente Island Flughafen 471.4 km
Zamperini Field 473.9 km
Downtown Los Angeles 477.1 km
Catalina Airport 477.7 km
Long Beach Airport 491.0 km
San Gabriel Valley Airport 496.4 km
Joint Forces Training Base 501.3 km

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