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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 - Troutdale Abstand
Portland Flughafen 22.5 km
Pearson Field 28.1 km
Aurora State Airport 45.0 km
Scappoose Industrial Airpark Airport 51.8 km
Hillsboro Airport 61.2 km
Southwest Washington Regional Airport 65.2 km
McNary Field Airport 76.7 km
McMinnville Municipal Airport 84.3 km
Puyallup Flughafen 93.4 km
Chehalis Flughafen 93.8 km
Gray Army Airfield 93.9 km
McChord Field 96.0 km
Olympia Regional Airport 101.7 km
Tacoma Narrows Airport 104.7 km
Seattle-Tacoma Intl. Airport 113.7 km
Corvallis Municipal Airport 117.0 km
Renton Municipal Airport 117.8 km
King Flughafen 118.7 km
Bremerton Ntnl Arpt 123.2 km
Eugene Airport 125.5 km
Sanderson Field Airport 131.4 km
Columbia Gorge Regional Airport 137.4 km
Snohomish 141.0 km
Stampede 156.4 km
Redmond Flughafen 157.0 km
Arlington Flughafen 157.5 km
Tillamook Airport 157.7 km
Bend Municipal Airport 158.5 km
Astoria Regional Airport 169.1 km
Naval Air Station Whidbey 170.2 km
Skagit Regional Airport 174.3 km
Roseburg Regional Airport 175.4 km
Prineville Flughafen 182.1 km
Friday Harbor Flughafen 191.2 km
Bowerman Airport 191.7 km
Newport Municipal Airport 192.9 km
Coast Guard Air Station Port Angeles 193.1 km
Bellingham Intl. Airport 194.8 km
William R. Fairchild Intl. Airport 197.8 km
Orcas Island Airport 197.9 km
Medford Flughafen 198.0 km
Victoria Gonzales 201.3 km
Victoria Uni. Campbell Scientific 201.7 km
Saturna Island 207.6 km
Abbotsford Flughafen 207.7 km
Saturna/capmon Cs 210.5 km
White Rock Campbell Scientific 211.8 km
Crater Lake 214.8 km
Yakima Flughafen 216.0 km
Victoria Int. Airport 220.0 km
Pitt Meadows Campbell Scientific 220.8 km
Malahat 222.2 km
Bowers Airport 225.0 km
Siskiyou 225.1 km
Burns Bog 225.6 km
Agassiz 229.8 km
Vancouver Flughafen 235.0 km
Sands Head 236.6 km
Vancouver Hrbour 239.5 km
Sheringham 241.3 km
Southwest Oregon Regional Airport 243.8 km
West Vancouver 245.1 km
Hope Aerodrome 245.9 km
Hope 246.5 km
North Cowichan 247.1 km
Mount Shasta 252.4 km
Pangborn Memorial Airport 267.2 km
Nanaimo Airport 268.9 km
Squamish Flughafen 269.0 km
Entrance Isl. 272.1 km
Sunnyside Muni 274.2 km
Quillayute Airport 281.0 km
Lake County Airport 296.7 km
Brookings Airport 299.1 km
Ballenas Island 302.9 km
Crescent City 307.6 km
Princeton 310.5 km
Alturas Flughafen 313.9 km
Qualicum Airport 321.0 km
Sisters Island 330.6 km
Ephrata Municipal Airport 336.2 km
Hermiston Municipal Airport 349.2 km
Powell River 350.4 km
Grant County Intl. Airport 355.9 km
Omak Airport 358.8 km
Port Alberni 365.8 km
Tri-Cities Airport 367.8 km
Comox 378.7 km
Summerland 383.0 km
Penticton Flughafen 384.0 km
Osoyoos 385.6 km
Grant County Regional Airport 388.1 km
Eastern Oregon Regional Airport 395.3 km
Burns Municipal Airport 399.9 km
Campbell River Airport 419.6 km
Kelowna Intl. Airport 419.9 km
Tofino 434.7 km
Meacham 443.4 km
Walla Walla Flughafen 459.3 km

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