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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 - Arcata Abstand
Arcata-Eureka Airport 13.6 km
Rohnerville Airport 21.6 km
Crescent City 60.8 km
Brookings Airport 80.1 km
Weaverville 125.8 km
Ukiah Flughafen 143.0 km
Trinity Center 151.2 km
Medford Flughafen 160.7 km
Southwest Oregon Regional Airport 160.9 km
Roseburg Regional Airport 165.6 km
Siskiyou 184.7 km
Mount Shasta 194.8 km
Redding Municipal Airport 196.1 km
Santa Rose Airport 199.0 km
Red Bluff Municipal Airport 205.1 km
Eugene Airport 220.8 km
Petaluma Flughafen 226.5 km
Newport Municipal Airport 231.6 km
Marin 235.2 km
Corvallis Municipal Airport 239.9 km
Chico Municipal Airport 253.5 km
Napa Flughafen 254.7 km
Half Moon Bay Airport 267.8 km
Crater Lake 271.1 km
San Francisco Intl. Airport 271.4 km
McNary Field Airport 274.7 km
Nut Tree Airport 278.6 km
Metropolitan Oakland Flughafen 279.2 km
Oroville Municipal Airport 282.8 km
Buchanan Field Airport 283.2 km
Travis Air Force Base 283.4 km
San Carlos Airport 285.8 km
Davis Flughafen 288.8 km
Hayward Executive Airport 290.0 km
Yuba 296.2 km
Palo Alto Flughafen 298.3 km
Sacramento Flughafen 303.4 km
Moffett Federal Airfield 305.6 km
Beale Air Force Base 309.4 km
Livermore Municipal Airport 313.8 km
Sacramento Executive Airport 317.9 km
San José Flughafen 318.0 km
Lincoln Flughafen 322.6 km
Sacramento McClellan Airport 323.2 km
Reid- Hillview Airport 327.8 km
Sacramento Mather Flughafen 336.3 km
Watsonville Flughafen 346.7 km
Auburn Flughafen 349.2 km
Nevada 353.1 km
South County Arpt Of Santa Clara County 355.9 km
Monterey Regional Airport 356.6 km
Stockton Metropolitan Airport 358.9 km
Bend Municipal Airport 371.6 km
Salinas Municipal Airport 372.2 km
Hollister Flughafen 378.7 km
Redmond Flughafen 379.7 km
Blue Canyon 382.9 km
Placerville Airport 388.5 km
Alturas Flughafen 393.3 km
Modesto 395.5 km
Prineville Flughafen 405.4 km
Lake County Airport 413.6 km
Columbia Flughafen 438.2 km
Castle Air Force Base 439.5 km
Truckee Tahoe Airport 445.5 km
Merced Regional Airport 447.2 km
Madera Municipal Airport 494.7 km

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