World

USA



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 - Columbia Distance
Columbia Airport 1.8 km
Castle Airport 40.5 km
Merced Regional Airport 43.4 km
Placerville Airport 56.1 km
Modesto 65.0 km
Lake Tahoe Airport 66.8 km
Madera Airport 66.8 km
Truckee Tahoe Airport 78.7 km
Blue Canyon 79.9 km
Auburn Airport 93.2 km
Stockton Metropolitan Airport 94.9 km
Nevada 96.0 km
Carson City Airport 99.1 km
Fresno Yosemite Intl. Airport 103.2 km
Sacramento Mather Airport 104.7 km
Naval Air Station Lemoore 106.7 km
Reno 107.5 km
Reno Stead Airport 109.2 km
Sacramento McClellan Airport 117.4 km
Lincoln Airport 117.5 km
Sacramento Executive Airport 125.1 km
Hanford Airport 128.7 km
Hollister Airport 129.5 km
Beale Air Force Base 131.6 km
Paso Robles Airport 135.3 km
Sacramento Intl. Airport 138.2 km
South County Arpt Of Santa Clara County 143.6 km
Yuba 143.9 km
Visalia Airport 145.9 km
Salinas Airport 154.4 km
Davis Airport 157.1 km
Livermore Airport 158.8 km
San Luis Obispo County Regional Airport 159.4 km
Oroville Airport 160.1 km
Reid- Hillview Airport 162.5 km
Watsonville Airport 166.1 km
Travis Air Force Base 171.3 km
Nut Tree Airport 173.7 km
San Jose Intl. Airport 173.9 km
Mammoth Yosemite Airport 175.1 km
Santa Maria Public Airport 175.8 km
Monterey Regional Airport 181.3 km
Buchanan Field Airport 183.7 km
Porterville Airport 184.9 km
Moffett Federal Airfield 186.9 km
Vandenberg Space Force Base 187.5 km
Lompoc Airport 189.1 km
Chico Airport 190.7 km
Hayward Executive Airport 192.2 km
Palo Alto Airport 193.7 km
Santa Ynez Airport 194.5 km
Alturas Airport 197.1 km
Hawthorne Industrial Airport 198.7 km
Oakland Intl. Airport 202.9 km
Naval Air Station Fallon Airport 204.1 km
Meadows Field Airport 207.1 km
San Carlos Airport 208.0 km
Napa Airport 209.7 km
Santa Barbara Airport 209.8 km
San Francisco Intl. Airport 222.0 km
Eastern Sierra Regional Airport 229.1 km
Derby Field 232.9 km
Lake County Airport 233.7 km
Eddie Andreini Sr. Airfield 235.6 km
Red Bluff Airport 240.1 km
Marin 240.1 km
Petaluma Airport 245.9 km
Oxnard Airport 249.8 km
Camarillo Airport 255.6 km
Redding Airport 255.7 km
Sandberg Airport 258.0 km
Naval Air Station Point Mugu 258.5 km
Tehachapi Airport 269.2 km
Santa Rose Airport 270.6 km
Crater Lake 278.9 km
Mount Shasta 286.4 km
Mojave Air and Space Port Airport 297.6 km
Van Nuys Airport 297.8 km
Whiteman Airport 301.2 km
General William J. Fox Airfield 301.3 km
Santa Monica Airport 308.1 km
Trinity Center 308.2 km
Burbank 309.0 km
Palmdale Regional Airport 317.0 km
Siskiyou 317.3 km
Ukiah Airport 318.5 km
Weaverville 322.8 km
Downtown Los Angeles 323.8 km
Edwards 326.5 km
Edwards Air Force Base 327.1 km
Naval Air Weapons Station China Lake 327.6 km
Winnemucca Airport 328.8 km
San Gabriel Valley Airport 339.1 km
Grey Butte Field Airport 356.4 km
Brackett Field 360.1 km
Tonopah Airport 369.2 km
Medford Airport 373.9 km
Rome State Airport 375.0 km
Ontario Intl. Airport 378.0 km
Southern California Logistics Airport 383.1 km