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 - Santa Ana Distance
John Wayne Airport 0.0 km
Fullerton Airport 16.1 km
Joint Forces Training Base 21.4 km
Brackett Field 23.6 km
San Gabriel Valley Airport 27.9 km
Chino Airport 29.8 km
Corona Airport 31.4 km
Long Beach Airport 32.3 km
Ontario Intl. Airport 35.2 km
Downtown Los Angeles 45.1 km
Riverside Airport 48.4 km
Grey Butte Field Airport 50.8 km
Zamperini Field 52.2 km
Hawthorne Airport 53.7 km
Palmdale Regional Airport 54.9 km
Los Angeles Intl. Airport 59.4 km
Burbank 60.2 km
Marine Corps Air Station Camp Pendleton 60.8 km
Catalina Airport 61.2 km
Oceanside Airport 62.3 km
Edwards Air Force Base 63.3 km
Santa Monica Airport 67.3 km
General William J. Fox Airfield 67.8 km
Edwards 68.0 km
Whiteman Airport 68.5 km
March Air Reserve Base 69.5 km
Fallbrook Airport 70.6 km
McClellan- Palomar Airport 70.9 km
Southern California Logistics Airport 71.1 km
San Bernardino Intl. Airport 73.4 km
Van Nuys Airport 74.1 km
Mojave Air and Space Port Airport 78.5 km
Murrieta Hot Springs 82.4 km
San Clemente Island Airport 87.6 km
Naval Air Station North Island 88.3 km
San Diego Intl. Airport 92.0 km
Montgomery-Gibbs Executive Airport 93.0 km
Marine Corps Air Station Miramar 93.8 km
Tehachapi Airport 99.4 km
Naval Outlying Landing Field Imperial Beach 101.3 km
Naval Air Weapons Station China Lake 105.7 km
Gillespie Field Airport 109.2 km
Ramona Airport 110.9 km
Sandberg Airport 111.7 km
Brown Field Airport 113.8 km
Tijuana Airport 115.8 km
Big Bear Airport 116.3 km
Barstow-Daggett Airport 134.5 km
Camarillo Airport 139.2 km
Naval Air Station Point Mugu 141.0 km
Oxnard Airport 150.9 km
Palm Springs Intl. Airport 152.3 km
Bicycle Lake Army Airfield 159.9 km
Meadows Field Airport 161.1 km
Campo 165.0 km
Naval Outlying Landing Field San Nicolas 177.9 km
Porterville Airport 182.3 km
Jacqueline Cochran Regional Airport 189.3 km
Twentynine Palms Airport 192.2 km
Eastern Sierra Regional Airport 201.1 km
Visalia Airport 221.0 km
Santa Barbara Airport 222.6 km
Mammoth Yosemite Airport 234.7 km
Hanford Airport 240.4 km
Naval Air Facility El Centro 246.9 km
Santa Ynez Airport 250.9 km
Mercury/Desert Rock 253.5 km
Imperial County AP 257.7 km
Fresno Yosemite Intl. Airport 264.0 km
Naval Air Station Lemoore 272.2 km
Creech Air Force Base Airport 284.2 km
Lompoc Airport 294.4 km
Santa Maria Public Airport 295.0 km
Mexicali (IAP) 297.9 km
Nuevo León 304.4 km
Madera Airport 306.7 km
Vandenberg Space Force Base 307.6 km
San Luis Obispo County Regional Airport 320.3 km
North Las Vegas Airport 322.4 km
Harry Reid Intl. Airport 323.3 km
Henderson Executive Airport 324.7 km
Paso Robles Airport 326.3 km
Nellis Air Force Base 339.7 km
Blythe Airport 350.7 km
Boulder City Airport 352.7 km
Merced Regional Airport 353.8 km
San Felipe 360.4 km
Castle Airport 361.5 km
Needles Airport 365.7 km
Yuma Intl. Airport 366.5 km
Yuma Intl. Airport 366.5 km
Laughlin/Bullhead Intl. Airport 375.2 km
Lake Havasu City Airport 393.0 km
Modesto 405.3 km
Hollister Airport 432.1 km
Stockton Metropolitan Airport 441.9 km
Kingman Airport 442.7 km
Salinas Airport 446.9 km
South County Arpt Of Santa Clara County 455.5 km
Watsonville Airport 471.5 km