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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.


Nearby Weather Stations - Alturas Απόσταση
Alturas Airport 0.0 km
Lake County Airport 40.5 km
Reno Stead Airport 126.0 km
Blue Canyon 127.3 km
Truckee Tahoe Airport 130.6 km
Crater Lake 136.9 km
Reno 139.6 km
Nevada 139.7 km
Κάρσον Σίτι Αεροδρόμιο 156.8 km
Auburn Airport 157.6 km
Lake Tahoe Airport 157.7 km
Placerville Airport 159.4 km
Prineville Airport 163.7 km
Bend Municipal Airport 165.7 km
Oroville Municipal Airport 167.5 km
Beale Air Force Base 168.6 km
Roberts Field 172.1 km
Lincoln Airport 174.0 km
Chico Municipal Airport 176.8 km
Yuba 179.5 km
Sacramento McClellan Airport 188.8 km
Sacramento Mather Airport 189.1 km
Columbia Airport 196.3 km
Mount Shasta 198.8 km
Sacramento International Airport 199.5 km
Sacramento Executive Airport 202.3 km
Redding Municipal Airport 205.0 km
Red Bluff Municipal Airport 206.5 km
Burns Municipal Airport 210.5 km
Siskiyou 216.0 km
Davis Airport 220.6 km
Stockton Metropolitan Airport 220.6 km
Modesto 224.8 km
Derby Field 232.6 km
Castle Airport 233.1 km
Naval Air Station Fallon Airport 233.9 km
Grant County Regional Airport 237.3 km
Merced Regional Airport 238.4 km
Nut Tree Airport 239.9 km
Trinity Center 242.3 km
Travis Air Force Base 243.1 km
Columbia Gorge Regional Airport 245.4 km
Livermore Municipal Airport 261.4 km
Buchanan Field Airport 264.2 km
Medford Airport 264.6 km
Hawthorne Industrial Airport 266.6 km
Weaverville 269.6 km
Napa Airport 272.3 km
Hermiston Municipal Airport 278.7 km
Reid- Hillview Airport 279.3 km
South County Arpt Of Santa Clara County 280.0 km
Hayward Executive Airport 283.3 km
San Jose International Airport 284.7 km
Mammoth Yosemite Airport 284.9 km
Oakland International Airport 287.6 km
Moffett Federal Airfield 290.2 km
Πάλο Άλτο Αεροδρόμιο 292.4 km
Eastern Oregon Regional Airport 297.1 km
Petaluma Airport 298.1 km
Marin 298.1 km
San Carlos Airport 299.7 km
Rome State Airport 302.6 km
San Francisco International Airport 305.4 km
Winnemucca Airport 306.0 km
Santa Rose Airport 308.2 km
Portland- Troutdale Airport 313.9 km
Eddie Andreini Sr. Airfield 318.9 km
Meacham 322.3 km
Ukiah Airport 328.0 km
Roseburg Regional Airport 329.7 km
Eastern Sierra Regional Airport 330.6 km
Aurora State Airport 331.4 km
Πόρτλαντ Αεροδρόμιο 331.6 km
Eugene Airport 335.9 km
Pearson Field 336.3 km
McNary Field Airport 339.0 km
La Grande/Union County Airport 349.1 km
Baker City Airport 352.3 km
Corvallis Municipal Airport 353.3 km
Hillsboro Airport 357.9 km
Scappoose Industrial Airpark Airport 358.7 km
McMinnville Municipal Airport 361.8 km
Rohnerville Airport 404.6 km
Arcata 406.6 km
Crescent City 412.2 km
Ontario Municipal Airport 414.0 km
Brookings Airport 419.6 km
Tonopah Airport 426.2 km
Southwest Oregon Regional Airport 429.2 km
Newport Municipal Airport 432.2 km
Tillamook Airport 432.8 km
Caldwell Airport 448.6 km
Nampa Municipal Airport 459.9 km
Μπόισι Αεροδρόμιο 492.7 km
McCall Municipal Airport 524.7 km
Idaho County Airport 543.8 km

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