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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 - Petaluma Abstand
Marin 4.4 km
Petaluma Flughafen 6.6 km
Napa Flughafen 30.0 km
Santa Rose Airport 34.7 km
San Francisco Intl. Airport 40.4 km
Half Moon Bay Airport 42.4 km
Metropolitan Oakland Flughafen 47.0 km
San Carlos Airport 53.5 km
Buchanan Field Airport 57.4 km
Hayward Executive Airport 58.3 km
Palo Alto Flughafen 65.7 km
Nut Tree Airport 67.4 km
Travis Air Force Base 68.7 km
Moffett Federal Airfield 73.2 km
San José Flughafen 86.3 km
Davis Flughafen 87.0 km
Livermore Municipal Airport 87.2 km
Ukiah Flughafen 90.9 km
Reid- Hillview Airport 97.0 km
Sacramento Flughafen 110.5 km
Watsonville Flughafen 114.3 km
Sacramento Executive Airport 118.7 km
Red Bluff Municipal Airport 120.1 km
Yuba 121.3 km
Chico Municipal Airport 121.3 km
Monterey Regional Airport 124.3 km
South County Arpt Of Santa Clara County 125.5 km
Oroville Municipal Airport 127.8 km
Sacramento McClellan Airport 130.7 km
Beale Air Force Base 135.5 km
Redding Municipal Airport 139.1 km
Lincoln Flughafen 139.5 km
Salinas Municipal Airport 139.9 km
Sacramento Mather Flughafen 140.5 km
Stockton Metropolitan Airport 145.9 km
Hollister Flughafen 148.9 km
Weaverville 157.8 km
Trinity Center 166.9 km
Auburn Flughafen 168.6 km
Modesto 181.4 km
Nevada 182.0 km
Mount Shasta 186.8 km
Placerville Airport 202.2 km
Blue Canyon 213.4 km
Siskiyou 213.4 km
Castle Air Force Base 225.9 km
Rohnerville Airport 226.9 km
Merced Regional Airport 232.8 km
Columbia Flughafen 238.0 km
Arcata-Eureka Airport 239.5 km
Crater Lake 250.6 km
Medford Flughafen 252.1 km
Paso Robles Municipal Airport 260.0 km
San Luis Obispo County Regional Airport 274.4 km
Truckee Tahoe Airport 276.4 km
Madera Municipal Airport 280.4 km
Lake Tahoe Airport 287.0 km
Crescent City 287.8 km
Alturas Flughafen 294.8 km
Vandenberg Space Force Base 299.1 km
Santa Maria Public Airport 303.0 km
Brookings Airport 305.6 km
Reno Stead Airport 309.2 km
Naval Air Station Lemoore 309.2 km
Lompoc Flughafen 310.4 km
Reno-Tahoe Flughafen 316.7 km
Carson City Flughafen 318.6 km
Fresno Yosemite Intl. Airport 326.2 km
Lake County Airport 331.5 km
Hanford Municipal Airport 344.3 km
Santa Ynez Flughafen 345.6 km
Visalia Municipal Airport 367.1 km
Santa Barbara Municipal Airport 372.7 km
Porterville Flughafen 407.7 km
Mammoth Yosemite Airport 414.5 km
Meadows Field Airport 420.6 km
Naval Air Station Fallon Airport 433.8 km
Hawthorne Industrial Airport 436.3 km
Oxnard Airport 437.7 km
Camarillo Flughafen 447.5 km
Naval Air Station Point Mugu 447.9 km
Derby Field 455.6 km
Sandberg Airport 468.0 km
Eastern Sierra Regional Airport 468.1 km
Tehachapi Municipal Airport 489.5 km
Van Nuys Flughafen 505.8 km
Whiteman Airport 511.1 km
Santa Monica Municipal Airport 514.2 km
Burbank 519.3 km
General William J. Fox Airfield 520.2 km
Mojave Air & Space Port Flughafen 520.8 km
Downtown Los Angeles 534.5 km
San Gabriel Valley Airport 553.5 km

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