World

North America



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.


Nearby Weather Stations - San Fernando Distance
Van Nuys Airport 7.9 km
Burbank 8.2 km
Santa Monica Airport 13.8 km
Los Angeles Intl. Airport 17.7 km
Hawthorne Airport 20.3 km
Downtown Los Angeles 23.4 km
Zamperini Field 27.2 km
General William J. Fox Airfield 33.3 km
Long Beach Airport 38.0 km
Palmdale Regional Airport 41.9 km
Sandberg Airport 43.6 km
San Gabriel Valley Airport 43.8 km
Catalina Airport 45.9 km
Tehachapi Airport 46.1 km
Joint Forces Training Base 47.7 km
Mojave Air and Space Port Airport 51.2 km
Fullerton Airport 52.6 km
Edwards Air Force Base 68.1 km
John Wayne Airport 68.5 km
San Clemente Island Airport 68.8 km
Brackett Field 71.0 km
Edwards 72.4 km
Camarillo Airport 75.2 km
Naval Air Station Point Mugu 78.3 km
Grey Butte Field Airport 84.6 km
Oxnard Airport 87.3 km
Chino Airport 88.6 km
Ontario Intl. Airport 91.6 km
Corona Airport 92.7 km
Meadows Field Airport 94.2 km
Riverside Airport 108.9 km
Naval Air Weapons Station China Lake 110.3 km
Southern California Logistics Airport 116.2 km
Porterville Airport 118.6 km
Naval Outlying Landing Field San Nicolas 127.8 km
Marine Corps Air Station Camp Pendleton 129.0 km
Oceanside Airport 130.7 km
March Air Reserve Base 131.3 km
San Bernardino Intl. Airport 131.8 km
Fallbrook Airport 138.2 km
McClellan- Palomar Airport 139.2 km
Murrieta Hot Springs 147.8 km
Visalia Airport 155.4 km
Naval Air Station North Island 156.4 km
Santa Barbara Airport 158.0 km
San Diego Intl. Airport 160.3 km
Montgomery-Gibbs Executive Airport 161.4 km
Marine Corps Air Station Miramar 162.3 km
Eastern Sierra Regional Airport 164.2 km
Naval Outlying Landing Field Imperial Beach 169.4 km
Hanford Airport 173.5 km
Big Bear Airport 173.7 km
Gillespie Field Airport 177.6 km
Ramona Airport 178.7 km
Brown Field Airport 182.2 km
Tijuana Airport 184.2 km
Barstow-Daggett Airport 184.3 km
Mammoth Yosemite Airport 185.1 km
Santa Ynez Airport 185.6 km
Fresno Yosemite Intl. Airport 198.0 km
Naval Air Station Lemoore 204.2 km
Bicycle Lake Army Airfield 205.6 km
Palm Springs Intl. Airport 214.5 km
Hawthorne Industrial Airport 228.7 km
Santa Maria Public Airport 229.0 km
Lompoc Airport 229.3 km
Campo 233.0 km
Madera Airport 239.6 km
Vandenberg Space Force Base 242.5 km
Tonopah Airport 245.9 km
Twentynine Palms Airport 251.0 km
Jacqueline Cochran Regional Airport 252.5 km
San Luis Obispo County Regional Airport 253.4 km
Paso Robles Airport 258.4 km
Merced Regional Airport 286.2 km
Mercury/Desert Rock 292.7 km
Castle Airport 294.0 km
Columbia Airport 302.9 km
Lake Tahoe Airport 306.8 km
Naval Air Facility El Centro 313.0 km
Imperial County AP 323.6 km
Creech Air Force Base Airport 327.2 km
Modesto 337.5 km
Placerville Airport 357.2 km
Hollister Airport 363.7 km
Mexicali (IAP) 363.9 km
Nuevo León 370.8 km
North Las Vegas Airport 371.2 km
Harry Reid Intl. Airport 373.1 km
Stockton Metropolitan Airport 374.0 km
Henderson Executive Airport 375.2 km
Salinas Airport 378.7 km
South County Arpt Of Santa Clara County 387.1 km
Nellis Air Force Base 389.2 km
Auburn Airport 394.0 km
Sacramento Mather Airport 399.0 km
Watsonville Airport 403.2 km
Monterey Regional Airport 403.5 km
Boulder City Airport 404.6 km