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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 - Sierra Madre Abstand
San Gabriel Valley Airport 4.0 km
Fullerton Municipal Airport 16.6 km
Joint Forces Training Base 18.8 km
Long Beach Airport 20.7 km
Downtown Los Angeles 21.1 km
Palmdale Regional Airport 25.4 km
Brackett Field 29.8 km
John Wayne Airport 31.8 km
Burbank 33.5 km
Hawthorne Municipal Airport 33.9 km
General William J. Fox Airfield 36.3 km
Zamperini Field 37.0 km
Los Angeles Intl. Airport 39.1 km
Whiteman Airport 41.3 km
Edwards Air Force Base 43.3 km
Santa Monica Municipal Airport 45.1 km
Chino Airport 47.4 km
Grey Butte Field Airport 47.5 km
Van Nuys Flughafen 48.4 km
Edwards 48.6 km
Mojave Air & Space Port Flughafen 48.9 km
Ontario Intl. Airport 50.4 km
Corona Flughafen 51.5 km
Catalina Airport 55.5 km
Riverside Municipal Airport 67.6 km
Tehachapi Municipal Airport 67.6 km
Southern California Logistics Airport 77.5 km
Sandberg Airport 82.4 km
San Clemente Island Flughafen 84.5 km
Marine Corps Air Station Camp Pendleton 89.5 km
Naval Air Weapons Station China Lake 89.6 km
March Air Reserve Base 90.0 km
San Bernardino Intl. Airport 90.8 km
Oceanside Municipal Airport 91.7 km
Fallbrook Flughafen 98.0 km
McClellan- Palomar Airport 100.2 km
Murrieta Hot Springs 106.8 km
Camarillo Flughafen 116.0 km
Naval Air Station Point Mugu 118.8 km
Naval Air Station North Island 119.2 km
San Diego Intl. Airport 122.5 km
Montgomery-Gibbs Executive Airport 123.0 km
Marine Corps Air Station Miramar 123.6 km
Oxnard Airport 128.0 km
Meadows Field Airport 130.6 km
Naval Outlying Landing Field Imperial Beach 132.1 km
Big Bear Airport 133.0 km
Gillespie Field Airport 138.3 km
Ramona Flughafen 138.6 km
Brown Field Municipal Airport 144.0 km
Barstow-Daggett Airport 145.5 km
Tijuana Flughafen 146.0 km
Porterville Flughafen 150.7 km
Naval Outlying Landing Field San Nicolas 163.4 km
Bicycle Lake Army Airfield 168.3 km
Eastern Sierra Regional Airport 172.9 km
Palm Springs Intl. Airport 173.3 km
Visalia Municipal Airport 189.8 km
Campo 192.8 km
Santa Barbara Municipal Airport 199.1 km
Mammoth Yosemite Airport 204.0 km
Hanford Municipal Airport 209.6 km
Twentynine Palms Flughafen 210.3 km
Jacqueline Cochran Regional Airport 211.3 km
Santa Ynez Flughafen 226.8 km
Tonopah Airport 227.9 km
Fresno Yosemite Intl. Airport 232.8 km
Hawthorne Industrial Airport 241.1 km
Naval Air Station Lemoore 242.1 km
Mercury/Desert Rock 258.4 km
Santa Maria Public Airport 270.3 km
Lompoc Flughafen 270.6 km
Naval Air Facility El Centro 271.8 km
Madera Municipal Airport 275.9 km
Imperial County Airport 282.4 km
Vandenberg Space Force Base 283.7 km
Creech Air Force Base Airport 291.6 km
San Luis Obispo County Regional Airport 294.6 km
Paso Robles Municipal Airport 299.2 km
Mexicali Intl. Airport 322.7 km
Merced Regional Airport 323.2 km
Nuevo León 329.7 km
Castle Air Force Base 330.9 km
North Las Vegas Airport 333.5 km
Harry Reid Intl. Airport 335.1 km
Lake Tahoe Airport 335.6 km
Henderson Executive Airport 337.0 km
Columbia Flughafen 337.2 km
Nellis Air Force Base 351.4 km
Boulder City Flughafen 366.0 km
Blythe Airport 372.0 km
Modesto 374.9 km
Needles Airport 383.4 km
San Felipe 388.2 km
Yuma Intl. Airport 390.4 km
Yuma Intl. Airport 390.4 km
Placerville Airport 391.0 km
Laughlin/Bullhead Intl. Airport 391.7 km
Hollister Flughafen 403.5 km
Lake Havasu City Flughafen 411.5 km

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