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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 - Sumner Abstand
Puyallup Flughafen 11.9 km
Renton Municipal Airport 21.1 km
Seattle-Tacoma Intl. Airport 22.0 km
King Flughafen 26.2 km
McChord Field 33.4 km
Gray Army Airfield 44.7 km
Tacoma Narrows Airport 45.1 km
Snohomish 46.3 km
Arlington Flughafen 60.0 km
Bremerton Ntnl Arpt 66.5 km
Olympia Regional Airport 80.5 km
Skagit Regional Airport 82.9 km
Naval Air Station Whidbey 89.6 km
Chehalis Flughafen 93.4 km
Stampede 94.9 km
Portland- Troutdale Airport 98.2 km
Southwest Washington Regional Airport 101.0 km
Portland Flughafen 103.4 km
Pearson Field 105.2 km
Bellingham Intl. Airport 105.7 km
Sanderson Field Airport 107.7 km
Scappoose Industrial Airpark Airport 111.2 km
Abbotsford Flughafen 113.8 km
Orcas Island Airport 123.4 km
Friday Harbor Flughafen 123.8 km
White Rock Campbell Scientific 129.1 km
Hillsboro Airport 129.1 km
Aurora State Airport 131.1 km
Agassiz 132.2 km
Pitt Meadows Campbell Scientific 134.4 km
Saturna Island 137.5 km
Saturna/capmon Cs 143.5 km
Columbia Gorge Regional Airport 144.3 km
Victoria Uni. Campbell Scientific 146.9 km
Victoria Gonzales 148.1 km
Coast Guard Air Station Port Angeles 149.5 km
Burns Bog 149.9 km
Hope Aerodrome 150.5 km
Hope 151.3 km
William R. Fairchild Intl. Airport 157.8 km
McMinnville Municipal Airport 157.8 km
McNary Field Airport 162.0 km
Vancouver Flughafen 164.0 km
Vancouver Hrbour 165.9 km
Victoria Int. Airport 166.0 km
Sands Head 171.0 km
Malahat 172.8 km
West Vancouver 172.8 km
Bowers Airport 183.8 km
Yakima Flughafen 186.8 km
Squamish Flughafen 192.4 km
Lytton 192.7 km
Lytton 192.7 km
Bowerman Airport 195.1 km
Pemberton Flughafen 197.9 km
Blackcombe Mtn Base 198.1 km
Whistler Flughafen 198.1 km
Astoria Regional Airport 198.7 km
North Cowichan 198.7 km
Corvallis Municipal Airport 201.1 km
Redmond Flughafen 203.8 km
Sheringham 207.0 km
Callaghan Valley 207.2 km
Bend Municipal Airport 209.5 km
Tillamook Airport 209.6 km
Lillooet 210.6 km
Eugene Airport 215.6 km
Prineville Flughafen 219.3 km
Entrance Isl. 219.7 km
Nanaimo Airport 220.8 km
Pangborn Memorial Airport 221.3 km
Princeton 230.4 km
Ashcroft 231.2 km
Merritt 232.6 km
Clinton 246.4 km
Clinton/Bleibler Ranch Aerodrome 248.6 km
Sunnyside Muni 250.9 km
Ballenas Island 256.6 km
Newport Municipal Airport 259.9 km
Quillayute Airport 268.0 km
Roseburg Regional Airport 269.3 km
Qualicum Airport 280.0 km
Kamloops Flughafen 281.8 km
Kamloops 282.0 km
Sisters Island 288.2 km
Ephrata Municipal Airport 297.0 km
Omak Airport 303.7 km
Powell River 304.1 km
Summerland 314.0 km
Penticton Flughafen 316.5 km
Grant County Intl. Airport 319.1 km
Southwest Oregon Regional Airport 323.6 km
Osoyoos 324.4 km
Hermiston Municipal Airport 333.2 km
Port Alberni 334.2 km
Comox 341.1 km
Tri-Cities Airport 345.0 km
Clearwater 349.0 km
Kelowna Intl. Airport 350.5 km
Tatlayoko Lake RCS 370.1 km

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