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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 - St. Helens Abstand
Scappoose Industrial Airpark Airport 6.3 km
Southwest Washington Regional Airport 15.6 km
Hillsboro Airport 22.2 km
Pearson Field 28.4 km
Portland Flughafen 33.7 km
Aurora State Airport 38.9 km
McMinnville Municipal Airport 50.1 km
Chehalis Flughafen 50.7 km
Portland- Troutdale Airport 55.3 km
McNary Field Airport 59.8 km
Olympia Regional Airport 66.6 km
Gray Army Airfield 79.7 km
McChord Field 88.1 km
Sanderson Field Airport 88.7 km
Tacoma Narrows Airport 90.0 km
Corvallis Municipal Airport 95.1 km
Puyallup Flughafen 98.3 km
Bremerton Ntnl Arpt 99.4 km
Tillamook Airport 109.0 km
Eugene Airport 113.1 km
Seattle-Tacoma Intl. Airport 114.0 km
Astoria Regional Airport 114.5 km
King Flughafen 118.2 km
Renton Municipal Airport 121.7 km
Bowerman Airport 137.0 km
Snohomish 138.5 km
Coast Guard Air Station Port Angeles 151.2 km
Naval Air Station Whidbey 151.3 km
Newport Municipal Airport 153.5 km
William R. Fairchild Intl. Airport 154.1 km
Arlington Flughafen 158.2 km
Friday Harbor Flughafen 161.3 km
Victoria Gonzales 163.0 km
Skagit Regional Airport 164.0 km
Victoria Uni. Campbell Scientific 164.2 km
Roseburg Regional Airport 168.9 km
Orcas Island Airport 171.8 km
Saturna Island 177.8 km
Saturna/capmon Cs 178.7 km
Bellingham Intl. Airport 180.3 km
Victoria Int. Airport 180.8 km
Malahat 180.8 km
Columbia Gorge Regional Airport 189.9 km
Stampede 190.1 km
White Rock Campbell Scientific 190.3 km
Sheringham 193.5 km
Abbotsford Flughafen 198.0 km
Burns Bog 198.2 km
Pitt Meadows Campbell Scientific 201.9 km
Sands Head 202.3 km
Vancouver Flughafen 203.9 km
North Cowichan 204.1 km
Vancouver Hrbour 209.8 km
Medford Flughafen 211.4 km
Redmond Flughafen 211.9 km
Bend Municipal Airport 213.0 km
West Vancouver 214.2 km
Southwest Oregon Regional Airport 215.5 km
Nanaimo Airport 224.9 km
Quillayute Airport 227.3 km
Entrance Isl. 229.7 km
Agassiz 235.6 km
Prineville Flughafen 237.4 km
Squamish Flughafen 239.9 km
Siskiyou 249.4 km
Crater Lake 255.4 km
Hope Aerodrome 256.9 km
Ballenas Island 257.3 km
Hope 257.8 km
Yakima Flughafen 263.0 km
Bowers Airport 268.6 km
Qualicum Airport 273.2 km
Mount Shasta 279.6 km
Brookings Airport 282.1 km
Sisters Island 283.1 km
Crescent City 293.6 km
Powell River 303.8 km
Pangborn Memorial Airport 310.0 km
Port Alberni 314.7 km
Sunnyside Muni 323.5 km
Comox 329.0 km
Princeton 337.1 km
Lake County Airport 349.3 km
Alturas Flughafen 364.2 km
Campbell River Airport 368.9 km
Tofino 380.7 km
Ephrata Municipal Airport 381.9 km
Omak Airport 399.1 km
Hermiston Municipal Airport 400.8 km
Grant County Intl. Airport 402.5 km
Summerland 416.9 km
Tri-Cities Airport 418.1 km
Penticton Flughafen 418.7 km
Osoyoos 423.4 km
Grant County Regional Airport 442.6 km
Eastern Oregon Regional Airport 447.3 km
Kelowna Intl. Airport 453.7 km
Burns Municipal Airport 455.1 km
Estevan Point lighthouse 466.6 km
Meacham 495.8 km

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