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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 - Clearlake Abstand
Santa Rose Airport 33.1 km
Petaluma Flughafen 41.7 km
Marin 49.1 km
Napa Flughafen 59.0 km
Ukiah Flughafen 64.1 km
Red Bluff Municipal Airport 83.4 km
Nut Tree Airport 83.6 km
San Francisco Intl. Airport 84.5 km
Metropolitan Oakland Flughafen 86.2 km
Buchanan Field Airport 86.8 km
Half Moon Bay Airport 87.3 km
Travis Air Force Base 87.9 km
San Carlos Airport 95.6 km
Hayward Executive Airport 95.7 km
Davis Flughafen 97.5 km
Redding Municipal Airport 99.8 km
Chico Municipal Airport 100.3 km
Palo Alto Flughafen 105.5 km
Moffett Federal Airfield 112.0 km
Weaverville 112.9 km
Oroville Municipal Airport 117.0 km
Sacramento Flughafen 117.0 km
Livermore Municipal Airport 117.3 km
Yuba 119.1 km
Trinity Center 122.4 km
San José Flughafen 123.2 km
Sacramento Executive Airport 129.4 km
Reid- Hillview Airport 132.2 km
Beale Air Force Base 134.0 km
Sacramento McClellan Airport 138.2 km
Lincoln Flughafen 142.7 km
Mount Shasta 145.7 km
Sacramento Mather Flughafen 150.3 km
Watsonville Flughafen 152.5 km
South County Arpt Of Santa Clara County 159.8 km
Monterey Regional Airport 165.4 km
Stockton Metropolitan Airport 165.9 km
Siskiyou 170.6 km
Auburn Flughafen 172.2 km
Salinas Municipal Airport 177.4 km
Nevada 182.2 km
Hollister Flughafen 182.4 km
Rohnerville Airport 193.7 km
Modesto 202.7 km
Arcata-Eureka Airport 204.9 km
Medford Flughafen 207.4 km
Placerville Airport 209.7 km
Blue Canyon 214.2 km
Crater Lake 215.4 km
Castle Air Force Base 247.4 km
Crescent City 248.8 km
Columbia Flughafen 252.7 km
Merced Regional Airport 254.8 km
Brookings Airport 266.0 km
Alturas Flughafen 277.0 km
Truckee Tahoe Airport 279.1 km
Lake Tahoe Airport 293.6 km
Paso Robles Municipal Airport 293.7 km
Madera Municipal Airport 302.8 km
Reno Stead Airport 309.7 km
San Luis Obispo County Regional Airport 310.0 km
Lake County Airport 311.1 km
Reno-Tahoe Flughafen 318.8 km
Carson City Flughafen 323.2 km
Naval Air Station Lemoore 334.8 km
Vandenberg Space Force Base 336.2 km
Santa Maria Public Airport 338.6 km
Lompoc Flughafen 346.9 km
Fresno Yosemite Intl. Airport 348.2 km
Hanford Municipal Airport 368.3 km
Santa Ynez Flughafen 379.8 km
Visalia Municipal Airport 390.3 km
Santa Barbara Municipal Airport 406.2 km
Mammoth Yosemite Airport 429.1 km
Porterville Flughafen 430.9 km
Naval Air Station Fallon Airport 438.5 km
Hawthorne Industrial Airport 445.8 km
Meadows Field Airport 446.4 km
Derby Field 457.1 km
Oxnard Airport 468.7 km
Camarillo Flughafen 477.9 km
Naval Air Station Point Mugu 478.8 km
Eastern Sierra Regional Airport 483.3 km
Sandberg Airport 495.2 km
Tehachapi Municipal Airport 514.1 km
Van Nuys Flughafen 533.7 km
Whiteman Airport 538.6 km
Santa Monica Municipal Airport 542.6 km
Mojave Air & Space Port Flughafen 544.8 km
General William J. Fox Airfield 545.4 km
Burbank 546.8 km
Downtown Los Angeles 562.0 km
San Gabriel Valley Airport 580.2 km

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