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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 - Larkspur Abstand
Marin 12.8 km
Petaluma Flughafen 21.0 km
San Francisco Intl. Airport 25.2 km
Half Moon Bay Airport 25.4 km
Napa Flughafen 32.7 km
Metropolitan Oakland Flughafen 37.2 km
San Carlos Airport 40.2 km
Santa Rose Airport 47.2 km
Hayward Executive Airport 49.0 km
Buchanan Field Airport 53.9 km
Palo Alto Flughafen 54.1 km
Moffett Federal Airfield 62.0 km
Travis Air Force Base 69.7 km
Nut Tree Airport 69.8 km
San José Flughafen 75.9 km
Livermore Municipal Airport 81.0 km
Reid- Hillview Airport 87.3 km
Davis Flughafen 90.4 km
Watsonville Flughafen 102.4 km
Ukiah Flughafen 103.5 km
Monterey Regional Airport 110.4 km
Sacramento Flughafen 114.2 km
South County Arpt Of Santa Clara County 115.7 km
Sacramento Executive Airport 120.4 km
Yuba 127.8 km
Salinas Municipal Airport 128.1 km
Sacramento McClellan Airport 133.3 km
Chico Municipal Airport 133.5 km
Red Bluff Municipal Airport 135.9 km
Oroville Municipal Airport 136.9 km
Hollister Flughafen 139.2 km
Beale Air Force Base 141.4 km
Sacramento Mather Flughafen 142.0 km
Stockton Metropolitan Airport 142.9 km
Lincoln Flughafen 143.6 km
Redding Municipal Airport 155.3 km
Auburn Flughafen 171.9 km
Weaverville 174.7 km
Modesto 177.1 km
Trinity Center 183.9 km
Nevada 186.4 km
Mount Shasta 203.3 km
Placerville Airport 203.5 km
Blue Canyon 217.0 km
Castle Air Force Base 221.1 km
Merced Regional Airport 227.7 km
Siskiyou 230.2 km
Columbia Flughafen 235.9 km
Rohnerville Airport 239.5 km
Paso Robles Municipal Airport 249.4 km
Arcata-Eureka Airport 252.6 km
San Luis Obispo County Regional Airport 262.7 km
Madera Municipal Airport 274.8 km
Truckee Tahoe Airport 278.9 km
Vandenberg Space Force Base 286.7 km
Lake Tahoe Airport 287.9 km
Santa Maria Public Airport 291.3 km
Lompoc Flughafen 298.3 km
Naval Air Station Lemoore 302.0 km
Crescent City 302.3 km
Alturas Flughafen 304.4 km
Reno Stead Airport 312.2 km
Reno-Tahoe Flughafen 319.1 km
Carson City Flughafen 320.1 km
Fresno Yosemite Intl. Airport 320.6 km
Santa Ynez Flughafen 334.4 km
Hanford Municipal Airport 337.7 km
Visalia Municipal Airport 360.9 km
Santa Barbara Municipal Airport 361.9 km
Porterville Flughafen 401.2 km
Mammoth Yosemite Airport 411.6 km
Meadows Field Airport 413.0 km
Oxnard Airport 427.8 km
Naval Air Station Fallon Airport 434.8 km
Hawthorne Industrial Airport 435.4 km
Naval Outlying Landing Field San Nicolas 436.1 km
Camarillo Flughafen 437.8 km
Naval Air Station Point Mugu 438.1 km
Derby Field 457.7 km
Sandberg Airport 459.8 km
Eastern Sierra Regional Airport 464.9 km
Tehachapi Municipal Airport 482.3 km
Van Nuys Flughafen 497.2 km
Whiteman Airport 502.7 km
Santa Monica Municipal Airport 505.3 km
Burbank 510.9 km
General William J. Fox Airfield 512.7 km
Los Angeles Intl. Airport 513.5 km
Mojave Air & Space Port Flughafen 513.8 km
Hawthorne Municipal Airport 518.9 km
San Clemente Island Flughafen 519.4 km
Zamperini Field 522.6 km
Downtown Los Angeles 526.0 km
Catalina Airport 526.2 km
Long Beach Airport 539.8 km
San Gabriel Valley Airport 545.3 km
Joint Forces Training Base 550.2 km

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