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  2. Woodburn, OR Weather - Hourly Forecasts and Local Weather ...

    www.aol.com/weather/forecast/us/woodburn-12798454

    Get the Woodburn, OR local weather forecast by the hour and the next 10 days. Skip to main content. Sign in. Mail. 24/7 Help. For premium support please call: 800-290-4726 more ways ...

  3. NowCast (air quality index) - Wikipedia

    en.wikipedia.org/wiki/NowCast_(air_quality_index)

    PM 2.5 AQI of US monitors, calculated utilizing NowCast, courtesy US EPA PM2.5 AQI map, calculated utilizing NowCast, courtesy US EPA. The PM (particulate matter) NowCast is a weighted average of hourly air monitoring data used by the United States Environmental Protection Agency (USEPA) for real-time reporting of the Air Quality Index (AQI) for PM (PM 10 - particles less than 10 micrometers ...

  4. Air quality index - Wikipedia

    en.wikipedia.org/wiki/Air_quality_index

    The most commonly used air quality index in the UK is the Daily Air Quality Index recommended by the Committee on the Medical Effects of Air Pollutants (COMEAP). [39] This index has ten points, which are further grouped into four bands: low, moderate, high and very high. Each of the bands comes with advice for at-risk groups and the general ...

  5. SIGWX - Wikipedia

    en.wikipedia.org/wiki/SIGWX

    SIGWX is a Significant Weather Chart defined by ICAO. Weather charts [ 1 ] being issued by World Area Forecast Centres [ 2 ] (from meteorological offices in London and Washington), presenting the most important meteorological phenomena relevant especially for air traffic transport.

  6. Woodburn, IN Weather - Hourly Forecasts and Local Weather ...

    www.aol.com/weather/forecast/united-states/...

    Get the Woodburn, IN local weather forecast by the hour and the next 10 days. Skip to main content. Sign in. Mail. 24/7 Help. For premium support please call: 800-290-4726 more ways ...

  7. Weather map - Wikipedia

    en.wikipedia.org/wiki/Weather_map

    The use of weather charts in a modern sense began in the middle portion of the 19th century in order to devise a theory on storm systems. [4] During the Crimean War a storm devastated the French fleet at Balaklava , and the French scientist Urbain Le Verrier was able to show that if a chronological map of the storm had been issued, the path it ...

  8. Surface weather analysis - Wikipedia

    en.wikipedia.org/wiki/Surface_weather_analysis

    A surface weather analysis for the United States on October 21, 2006. By that time, Tropical Storm Paul was active (Paul later became a hurricane). Surface weather analysis is a special type of weather map that provides a view of weather elements over a geographical area at a specified time based on information from ground-based weather stations.

  9. World Area Forecast Center - Wikipedia

    en.wikipedia.org/wiki/World_Area_Forecast_Center

    A World Area Forecast Centre (WAFC) is a meteorological centre that provides real-time meteorological information broadcasts for aviation purposes. These broadcasts are supervised by International Civil Aviation Organization (ICAO) in order to fulfill requirements of the ICAO Annex 3 covering meteorological information which is necessary for flights.