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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 - Rosemead Abstand
San Gabriel Valley Airport 4.1 km
Fullerton Municipal Airport 13.3 km
Joint Forces Training Base 13.7 km
Long Beach Airport 15.4 km
Downtown Los Angeles 18.6 km
John Wayne Airport 29.4 km
Palmdale Regional Airport 30.4 km
Hawthorne Municipal Airport 30.6 km
Brackett Field 31.6 km
Burbank 32.5 km
Zamperini Field 32.8 km
Los Angeles Intl. Airport 36.1 km
General William J. Fox Airfield 40.0 km
Whiteman Airport 40.6 km
Santa Monica Municipal Airport 42.7 km
Van Nuys Flughafen 47.2 km
Chino Airport 48.4 km
Edwards Air Force Base 48.9 km
Catalina Airport 50.5 km
Grey Butte Field Airport 51.7 km
Ontario Intl. Airport 51.9 km
Corona Flughafen 52.3 km
Mojave Air & Space Port Flughafen 53.7 km
Edwards 54.1 km
Riverside Municipal Airport 68.8 km
Tehachapi Municipal Airport 70.6 km
San Clemente Island Flughafen 79.5 km
Southern California Logistics Airport 80.9 km
Sandberg Airport 83.0 km
Marine Corps Air Station Camp Pendleton 88.7 km
Oceanside Municipal Airport 90.7 km
March Air Reserve Base 91.2 km
San Bernardino Intl. Airport 92.6 km
Naval Air Weapons Station China Lake 95.1 km
Fallbrook Flughafen 97.7 km
McClellan- Palomar Airport 99.2 km
Murrieta Hot Springs 107.3 km
Camarillo Flughafen 114.4 km
Naval Air Station Point Mugu 116.9 km
Naval Air Station North Island 117.5 km
San Diego Intl. Airport 121.0 km
Montgomery-Gibbs Executive Airport 121.8 km
Marine Corps Air Station Miramar 122.5 km
Oxnard Airport 126.4 km
Naval Outlying Landing Field Imperial Beach 130.5 km
Meadows Field Airport 131.9 km
Big Bear Airport 135.2 km
Gillespie Field Airport 137.5 km
Ramona Flughafen 138.3 km
Brown Field Municipal Airport 142.7 km
Tijuana Flughafen 144.7 km
Barstow-Daggett Airport 148.6 km
Porterville Flughafen 153.0 km
Naval Outlying Landing Field San Nicolas 160.1 km
Bicycle Lake Army Airfield 171.9 km
Palm Springs Intl. Airport 174.8 km
Eastern Sierra Regional Airport 177.7 km
Visalia Municipal Airport 191.7 km
Campo 192.5 km
Santa Barbara Municipal Airport 197.7 km
Mammoth Yosemite Airport 208.1 km
Hanford Municipal Airport 211.1 km
Twentynine Palms Flughafen 212.4 km
Jacqueline Cochran Regional Airport 212.6 km
Santa Ynez Flughafen 225.6 km
Tonopah Airport 233.3 km
Fresno Yosemite Intl. Airport 234.7 km
Naval Air Station Lemoore 243.2 km
Hawthorne Industrial Airport 245.8 km
Mercury/Desert Rock 262.5 km
Santa Maria Public Airport 269.3 km
Lompoc Flughafen 269.3 km
Naval Air Facility El Centro 272.5 km
Madera Municipal Airport 277.4 km
Vandenberg Space Force Base 282.5 km
Imperial County Airport 283.1 km
San Luis Obispo County Regional Airport 293.9 km
Creech Air Force Base Airport 295.4 km
Paso Robles Municipal Airport 299.0 km
Mexicali Intl. Airport 323.4 km
Merced Regional Airport 324.6 km
Nuevo León 330.2 km
Castle Air Force Base 332.3 km
North Las Vegas Airport 336.9 km
Harry Reid Intl. Airport 338.3 km
Lake Tahoe Airport 338.6 km
Columbia Flughafen 339.2 km
Henderson Executive Airport 340.2 km
Nellis Air Force Base 354.7 km
Boulder City Flughafen 369.0 km
Blythe Airport 373.5 km
Modesto 376.2 km
Needles Airport 385.7 km
San Felipe 388.0 km
Yuma Intl. Airport 391.3 km
Yuma Intl. Airport 391.3 km
Placerville Airport 393.2 km
Laughlin/Bullhead Intl. Airport 394.2 km
Hollister Flughafen 403.9 km
Stockton Metropolitan Airport 412.8 km

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