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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.


Poblíž povětrnostní stanice - Rosemead Vzdálenost
San Gabriel Valley (Letiště) 4.1 km
Fullerton Municipal (Letiště) 13.3 km
Joint Forces Training Base 13.7 km
Long Beach (Letiště) 15.4 km
Downtown 18.6 km
John Wayne (Letiště) 29.4 km
Palmdale Regional (Letiště) 30.4 km
Hawthorne Municipal (Letiště) 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 (Letiště) 40.6 km
Santa Monica (Letiště) 42.7 km
Van Nuys (Letiště) 47.2 km
Chino (Letiště) 48.4 km
Edwardsova letecká základna 48.9 km
Catalina (Letiště) 50.5 km
Grey Butte Field (Letiště) 51.7 km
Letiště Ontario 51.9 km
Corona (Letiště) 52.3 km
Mojave Air and Space Port (Letiště) 53.7 km
Edwards 54.1 km
Riverside Municipal (Letiště) 68.8 km
Tehachapi Municipal (Letiště) 70.6 km
San Clemente Island (Letiště) 79.5 km
Southern California Logistics (Letiště) 80.9 km
Sandberg (Letiště) 83.0 km
Marine Corps Air Station Camp Pendleton 88.7 km
Oceanside Municipal (Letiště) 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 (Letiště) 97.7 km
McClellan- Palomar (Letiště) 99.2 km
Murrieta Hot Springs 107.3 km
Camarillo (Letiště) 114.4 km
Naval Air Station Point Mugu 116.9 km
Naval Air Station North Island 117.5 km
Letiště San Diego 121.0 km
Montgomery-Gibbs Executive (Letiště) 121.8 km
Marine Corps Air Station Miramar 122.5 km
Oxnard (Letiště) 126.4 km
Naval Outlying Landing Field Imperial Beach 130.5 km
Meadows Field (Letiště) 131.9 km
Big Bear (Letiště) 135.2 km
Gillespie Field (Letiště) 137.5 km
Ramona (Letiště) 138.3 km
Brown Field Municipal (Letiště) 142.7 km
Tijuana Letiště 144.7 km
Barstow-Daggett (Letiště) 148.6 km
Porterville (Letiště) 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 (Letiště) 177.7 km
Visalia Municipal (Letiště) 191.7 km
Campo 192.5 km
Santa Barbara Municipal (Letiště) 197.7 km
Mammoth Yosemite (Letiště) 208.1 km
Hanford Municipal (Letiště) 211.1 km
Twentynine Palms Letiště 212.4 km
Jacqueline Cochran Regional (Letiště) 212.6 km
Santa Ynez (Letiště) 225.6 km
Tonopah (Letiště) 233.3 km
Fresno Yosemite Intl. Airport 234.7 km
Naval Air Station Lemoore 243.2 km
Hawthorne Industrial (Letiště) 245.8 km
Mercury/Desert Rock 262.5 km
Santa Maria Public (Letiště) 269.3 km
Lompoc (Letiště) 269.3 km
Naval Air Facility El Centro 272.5 km
Madera Municipal (Letiště) 277.4 km
Vandenbergova vesmírná základna 282.5 km
Imperial County (Letiště) 283.1 km
San Luis Obispo County Regional (Letiště) 293.9 km
Creechova letecká základna Letiště 295.4 km
Paso Robles Municipal (Letiště) 299.0 km
Mexicali Intl. Airport 323.4 km
Merced Regional (Letiště) 324.6 km
Nuevo León 330.2 km
Castle (Letiště) 332.3 km
North Las Vegas (Letiště) 336.9 km
Harry Reid Intl. Airport 338.3 km
Lake Tahoe (Letiště) 338.6 km
Columbia (Letiště) 339.2 km
Henderson Executive (Letiště) 340.2 km
Nellisova letecká základna 354.7 km
Boulder City Letiště 369.0 km
Blythe (Letiště) 373.5 km
Modesto 376.2 km
Needles (Letiště) 385.7 km
San Felipe 388.0 km
Yuma Intl. Airport 391.3 km
Yuma Intl. Airport 391.3 km
Placerville (Letiště) 393.2 km
Laughlin/Bullhead Intl. Airport 394.2 km
Hollister Letiště 403.9 km
Stockton Metropolitan (Letiště) 412.8 km

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