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  2. Winter storm live tracker: Snowfall maps, current alerts, weather warnings, ice forecasts, power outages. A deadly winter storm that swept across much of the nation at the end of last week is now impacting the mid-Atlantic, where cities like Washington, Baltimore and Richmond, Virg…

  3. Get the Boydton, VA local weather forecast by the hour and the next 10 days.

  4. Daywatch: Oppressive heat and humidity expected today - AOL

    www.aol.com/finance/daywatch-oppressive-heat...

    Good morning, Chicago. The week is going to close out hot and humid. Temperatures will reach the high 90s today and tomorrow, but the high humidity will make it feel hotter than what the ...

  5. Weather forecasting - Wikipedia

    en.wikipedia.org/wiki/Weather_forecasting

    Forecasting of wind, precipitation and humidity is essential for preventing and controlling wildfires. Indices such as the Forest fire weather index and the Haines Index, have been developed to predict the areas more at risk of fire from natural or human causes. Conditions for the development of harmful insects can also be predicted by ...

  6. Weather front - Wikipedia

    en.wikipedia.org/wiki/Weather_front

    Low pressure also creates surface winds deriving from high pressure zones and vice versa. Various symbols are used not just for frontal zones and other surface boundaries on weather maps, but also to depict the present weather at various locations on the weather map. In addition, areas of precipitation help determine the frontal type and ...

  7. Weather map - Wikipedia

    en.wikipedia.org/wiki/Weather_map

    Such maps have been in use since the mid-19th century and are used for research and weather forecasting purposes. Maps using isotherms show temperature gradients, [2] which can help locate weather fronts. Isotach maps, analyzing lines of equal wind speed, [3] on a constant pressure surface of 300 or 250 hPa show where the jet stream is located.

  8. Top 10 sweatiest cities in America: Humidity, population ...

    www.aol.com/news/2015-07-16-top-10-sweatiest...

    While heat and humidity may be a common consequence to the summer season, the right factors can be deadly. An average of 658 people died of heat-related causes between 1999 and 2009. Check out the ...

  9. Humidity - Wikipedia

    en.wikipedia.org/wiki/Humidity

    Humidity is the concentration of water vapor present in the air. Water vapor, the gaseous state of water, is generally invisible to the human eye. [2] Humidity indicates the likelihood for precipitation, dew, or fog to be present. Humidity depends on the temperature and pressure of the system of interest.