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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 - Yelm Abstand
Gray Army Airfield 12.5 km
McChord Field 17.6 km
Tacoma Narrows Airport 23.3 km
Puyallup Flughafen 32.1 km
Olympia Regional Airport 39.3 km
Bremerton Ntnl Arpt 43.2 km
Seattle-Tacoma Intl. Airport 43.8 km
King Flughafen 47.7 km
Chehalis Flughafen 49.8 km
Renton Municipal Airport 52.2 km
Southwest Washington Regional Airport 60.4 km
Snohomish 68.0 km
Sanderson Field Airport 70.1 km
Scappoose Industrial Airpark Airport 75.0 km
Pearson Field 76.8 km
Portland Flughafen 77.1 km
Portland- Troutdale Airport 81.4 km
Arlington Flughafen 87.7 km
Naval Air Station Whidbey 88.9 km
Hillsboro Airport 92.7 km
Skagit Regional Airport 96.0 km
Aurora State Airport 101.3 km
Friday Harbor Flughafen 111.3 km
Bellingham Intl. Airport 114.8 km
Orcas Island Airport 116.9 km
McMinnville Municipal Airport 120.6 km
Coast Guard Air Station Port Angeles 122.7 km
Victoria Uni. Campbell Scientific 126.3 km
Victoria Gonzales 126.6 km
Saturna Island 127.4 km
McNary Field Airport 128.9 km
William R. Fairchild Intl. Airport 129.5 km
Abbotsford Flughafen 130.1 km
White Rock Campbell Scientific 130.4 km
Saturna/capmon Cs 131.1 km
Stampede 137.5 km
Pitt Meadows Campbell Scientific 139.8 km
Burns Bog 144.6 km
Victoria Int. Airport 145.4 km
Malahat 149.8 km
Bowerman Airport 154.1 km
Vancouver Flughafen 154.9 km
Astoria Regional Airport 155.0 km
Sands Head 158.0 km
Vancouver Hrbour 158.9 km
West Vancouver 164.8 km
Agassiz 165.1 km
Corvallis Municipal Airport 165.7 km
Tillamook Airport 166.6 km
Columbia Gorge Regional Airport 171.0 km
North Cowichan 175.7 km
Sheringham 177.5 km
Eugene Airport 182.9 km
Hope Aerodrome 187.1 km
Hope 188.1 km
Squamish Flughafen 188.1 km
Nanaimo Airport 198.0 km
Entrance Isl. 199.2 km
Blackcombe Mtn Base 200.6 km
Whistler Flughafen 200.7 km
Pemberton Flughafen 206.1 km
Callaghan Valley 206.4 km
Newport Municipal Airport 218.2 km
Redmond Flughafen 218.3 km
Bend Municipal Airport 222.3 km
Bowers Airport 224.7 km
Lytton 224.9 km
Lytton 224.9 km
Yakima Flughafen 225.2 km
Quillayute Airport 232.1 km
Ballenas Island 233.4 km
Lillooet 235.8 km
Prineville Flughafen 238.0 km
Roseburg Regional Airport 238.2 km
Qualicum Airport 254.6 km
Pangborn Memorial Airport 263.3 km
Sisters Island 263.5 km
Ashcroft 265.7 km
Merritt 272.9 km
Princeton 273.2 km
Medford Flughafen 273.9 km
Powell River 281.4 km
Southwest Oregon Regional Airport 284.4 km
Sunnyside Muni 289.0 km
Crater Lake 295.1 km
Port Alberni 305.3 km
Comox 314.7 km
Kamloops Flughafen 322.3 km
Kamloops 322.5 km
Ephrata Municipal Airport 338.5 km
Omak Airport 347.1 km
Brookings Airport 352.6 km
Campbell River Airport 357.3 km
Summerland 357.7 km
Penticton Flughafen 360.3 km
Grant County Intl. Airport 360.4 km
Lake County Airport 363.8 km
Osoyoos 368.1 km
Hermiston Municipal Airport 370.4 km
Tofino 383.5 km

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