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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 - Fontana Abstand
Riverside Municipal Airport 4.3 km
Ontario Intl. Airport 16.7 km
Corona Flughafen 18.4 km
Chino Airport 20.7 km
March Air Reserve Base 23.3 km
San Bernardino Intl. Airport 24.1 km
Southern California Logistics Airport 29.2 km
Grey Butte Field Airport 36.8 km
Brackett Field 37.3 km
Marine Corps Air Station Camp Pendleton 39.2 km
Fallbrook Flughafen 41.2 km
Murrieta Hot Springs 42.8 km
Oceanside Municipal Airport 43.3 km
McClellan- Palomar Airport 49.7 km
John Wayne Airport 49.8 km
Fullerton Municipal Airport 60.0 km
San Gabriel Valley Airport 65.0 km
Edwards Air Force Base 65.8 km
Big Bear Airport 67.1 km
Edwards 67.5 km
Joint Forces Training Base 68.2 km
Marine Corps Air Station Miramar 70.9 km
Montgomery-Gibbs Executive Airport 71.4 km
Naval Air Station North Island 72.9 km
San Diego Intl. Airport 73.5 km
Palmdale Regional Airport 76.8 km
Ramona Flughafen 78.2 km
Long Beach Airport 78.7 km
Gillespie Field Airport 81.4 km
Naval Outlying Landing Field Imperial Beach 83.5 km
Barstow-Daggett Airport 85.0 km
Downtown Los Angeles 87.2 km
Naval Air Weapons Station China Lake 88.9 km
Brown Field Municipal Airport 91.0 km
Tijuana Flughafen 92.7 km
General William J. Fox Airfield 93.2 km
Mojave Air & Space Port Flughafen 94.4 km
Hawthorne Municipal Airport 98.7 km
Zamperini Field 99.2 km
Burbank 100.6 km
Los Angeles Intl. Airport 104.4 km
Palm Springs Intl. Airport 106.2 km
Whiteman Airport 108.3 km
Catalina Airport 110.8 km
Bicycle Lake Army Airfield 111.0 km
Santa Monica Municipal Airport 111.3 km
Van Nuys Flughafen 115.4 km
Tehachapi Municipal Airport 124.2 km
Campo 130.7 km
San Clemente Island Flughafen 137.3 km
Twentynine Palms Flughafen 144.0 km
Jacqueline Cochran Regional Airport 144.3 km
Sandberg Airport 147.7 km
Camarillo Flughafen 183.0 km
Naval Air Station Point Mugu 185.6 km
Meadows Field Airport 192.8 km
Oxnard Airport 195.0 km
Eastern Sierra Regional Airport 201.4 km
Mercury/Desert Rock 205.4 km
Naval Air Facility El Centro 205.8 km
Porterville Flughafen 208.1 km
Tonopah Airport 208.8 km
Imperial County Airport 216.2 km
Naval Outlying Landing Field San Nicolas 226.6 km
Creech Air Force Base Airport 235.1 km
Mammoth Yosemite Airport 243.8 km
Visalia Municipal Airport 248.5 km
Mexicali Intl. Airport 256.5 km
Nuevo León 263.8 km
Santa Barbara Municipal Airport 266.2 km
Hanford Municipal Airport 270.0 km
Hawthorne Industrial Airport 270.3 km
North Las Vegas Airport 272.6 km
Harry Reid Intl. Airport 273.5 km
Henderson Executive Airport 274.9 km
Nellis Air Force Base 290.0 km
Fresno Yosemite Intl. Airport 291.2 km
Santa Ynez Flughafen 293.9 km
Boulder City Flughafen 303.1 km
Naval Air Station Lemoore 304.2 km
Blythe Airport 305.0 km
Needles Airport 317.4 km
Yuma Intl. Airport 323.7 km
Yuma Intl. Airport 323.7 km
San Felipe 324.6 km
Laughlin/Bullhead Intl. Airport 326.4 km
Madera Municipal Airport 335.8 km
Santa Maria Public Airport 337.2 km
Lompoc Flughafen 337.6 km
Lake Havasu City Flughafen 345.2 km
Vandenberg Space Force Base 350.7 km
San Luis Obispo County Regional Airport 361.2 km
Paso Robles Municipal Airport 365.2 km
Merced Regional Airport 383.6 km
Lake Tahoe Airport 384.6 km
Castle Air Force Base 391.2 km
Columbia Flughafen 393.8 km
Kingman Airport 394.1 km
Modesto 435.8 km
Placerville Airport 446.7 km

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