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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 - Perris Vzdálenost
March Air Reserve Base 9.5 km
Murrieta Hot Springs 12.2 km
San Bernardino Intl. Airport 16.9 km
Fallbrook (Letiště) 23.1 km
Marine Corps Air Station Camp Pendleton 30.9 km
Riverside Municipal (Letiště) 30.9 km
Oceanside Municipal (Letiště) 34.3 km
McClellan- Palomar (Letiště) 34.9 km
Big Bear (Letiště) 43.8 km
Southern California Logistics (Letiště) 46.5 km
Corona (Letiště) 47.0 km
Marine Corps Air Station Miramar 48.0 km
Ramona (Letiště) 48.2 km
Letiště Ontario 48.4 km
Montgomery-Gibbs Executive (Letiště) 49.4 km
Chino (Letiště) 51.0 km
Letiště San Diego 53.4 km
Gillespie Field (Letiště) 53.8 km
Naval Air Station North Island 55.2 km
Naval Outlying Landing Field Imperial Beach 62.2 km
Brown Field Municipal (Letiště) 65.6 km
Tijuana Letiště 67.0 km
Grey Butte Field (Letiště) 67.5 km
Brackett Field 68.7 km
Barstow-Daggett (Letiště) 69.9 km
Palm Springs Intl. Airport 76.1 km
John Wayne (Letiště) 76.2 km
Fullerton Municipal (Letiště) 89.2 km
San Gabriel Valley (Letiště) 95.9 km
Joint Forces Training Base 96.7 km
Edwardsova letecká základna 96.8 km
Bicycle Lake Army Airfield 97.4 km
Edwards 97.9 km
Campo 99.0 km
Long Beach (Letiště) 107.6 km
Palmdale Regional (Letiště) 109.1 km
Naval Air Weapons Station China Lake 112.2 km
Jacqueline Cochran Regional (Letiště) 113.4 km
Twentynine Palms Letiště 116.5 km
Downtown 117.7 km
General William J. Fox Airfield 125.5 km
Mojave Air and Space Port (Letiště) 126.2 km
Zamperini Field 128.0 km
Hawthorne Municipal (Letiště) 128.4 km
Burbank 131.7 km
Los Angeles Intl. Airport 134.2 km
Catalina (Letiště) 136.9 km
Whiteman (Letiště) 139.6 km
Santa Monica (Letiště) 141.5 km
Van Nuys (Letiště) 146.5 km
Tehachapi Municipal (Letiště) 156.4 km
San Clemente Island (Letiště) 161.4 km
Naval Air Facility El Centro 173.7 km
Sandberg (Letiště) 179.8 km
Imperial County (Letiště) 184.2 km
Mercury/Desert Rock 191.8 km
Camarillo (Letiště) 213.6 km
Naval Air Station Point Mugu 215.9 km
Creechova letecká základna Letiště 218.0 km
Mexicali Intl. Airport 224.5 km
Meadows Field (Letiště) 225.1 km
Oxnard (Letiště) 225.6 km
Eastern Sierra Regional (Letiště) 227.8 km
Nuevo León 231.7 km
Porterville (Letiště) 240.1 km
North Las Vegas (Letiště) 251.0 km
Harry Reid Intl. Airport 251.3 km
Henderson Executive (Letiště) 252.1 km
Naval Outlying Landing Field San Nicolas 254.0 km
Nellisova letecká základna 267.7 km
Mammoth Yosemite (Letiště) 272.5 km
Blythe (Letiště) 274.7 km
Boulder City Letiště 279.2 km
Visalia Municipal (Letiště) 280.6 km
Needles (Letiště) 289.7 km
Yuma Intl. Airport 292.1 km
Yuma Intl. Airport 292.1 km
San Felipe 292.3 km
Santa Barbara Municipal (Letiště) 297.0 km
Laughlin/Bullhead Intl. Airport 299.6 km
Hanford Municipal (Letiště) 302.2 km
Lake Havasu City Letiště 316.8 km
Fresno Yosemite Intl. Airport 323.3 km
Santa Ynez (Letiště) 324.9 km
Naval Air Station Lemoore 336.5 km
Kingman (Letiště) 366.9 km
Madera Municipal (Letiště) 368.0 km
Santa Maria Public (Letiště) 368.5 km
Lompoc (Letiště) 368.6 km
Vandenbergova vesmírná základna 381.8 km
San Luis Obispo County Regional (Letiště) 392.9 km
Paso Robles Municipal (Letiště) 397.2 km
Merced Regional (Letiště) 415.8 km
Puerto Peñasco 421.4 km
Castle (Letiště) 423.4 km
Saint George 428.7 km
Modesto 468.0 km
Cedar City Regional (Letiště) 490.6 km
Hollister Letiště 500.0 km
Stockton Metropolitan (Letiště) 504.7 km

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