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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.


Nächste Wetterstation - Fortuna Abstand
Rohnerville Airport 1.8 km
Arcata-Eureka Airport 16.6 km
Crescent City 78.2 km
Brookings Airport 97.3 km
Weaverville 133.5 km
Ukiah Flughafen 134.6 km
Trinity Center 160.7 km
Medford Flughafen 178.4 km
Southwest Oregon Regional Airport 179.9 km
Roseburg Regional Airport 186.5 km
Santa Rose Airport 191.1 km
Siskiyou 198.3 km
Redding Municipal Airport 202.3 km
Mount Shasta 205.7 km
Red Bluff Municipal Airport 209.2 km
Petaluma Flughafen 219.1 km
Marin 227.7 km
Eugene Airport 241.8 km
Napa Flughafen 249.1 km
Newport Municipal Airport 251.7 km
Chico Municipal Airport 256.6 km
Half Moon Bay Airport 258.5 km
Corvallis Municipal Airport 261.0 km
San Francisco Intl. Airport 263.2 km
Metropolitan Oakland Flughafen 272.3 km
Nut Tree Airport 275.2 km
Buchanan Field Airport 277.9 km
San Carlos Airport 278.0 km
Travis Air Force Base 279.7 km
Hayward Executive Airport 283.4 km
Crater Lake 284.1 km
Oroville Municipal Airport 285.0 km
Davis Flughafen 286.7 km
Palo Alto Flughafen 291.0 km
McNary Field Airport 295.7 km
Yuba 297.0 km
Moffett Federal Airfield 298.6 km
Sacramento Flughafen 302.6 km
Livermore Municipal Airport 308.7 km
Beale Air Force Base 310.6 km
San José Flughafen 311.4 km
Sacramento Executive Airport 316.8 km
Reid- Hillview Airport 321.7 km
Sacramento McClellan Airport 322.9 km
Lincoln Flughafen 323.3 km
Sacramento Mather Flughafen 335.8 km
Watsonville Flughafen 339.6 km
Monterey Regional Airport 348.4 km
South County Arpt Of Santa Clara County 350.0 km
Auburn Flughafen 350.6 km
Nevada 355.6 km
Stockton Metropolitan Airport 356.6 km
Salinas Municipal Airport 365.3 km
Hollister Flughafen 373.1 km
Blue Canyon 385.9 km
Bend Municipal Airport 388.1 km
Placerville Airport 389.9 km
Modesto 393.3 km
Redmond Flughafen 396.4 km
Alturas Flughafen 402.9 km
Prineville Flughafen 421.6 km
Lake County Airport 424.7 km
Castle Air Force Base 437.7 km
Columbia Flughafen 438.4 km
Merced Regional Airport 445.3 km
Truckee Tahoe Airport 449.4 km
Madera Municipal Airport 493.0 km

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