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  2. Over 95 million Americans on alert for brutal cold ...

    www.aol.com/over-85-million-americans-under...

    Some of the wind chill temperatures are expected to be hit -30 degrees in Minneapolis, -20 degrees in Chicago, below zero in New York City on Tuesday and into the 10s in Houston early this week ...

  3. Southern states declare emergencies ahead of potentially ...

    www.aol.com/coldest-wind-chills-years-threaten...

    The already serious cold is made more dangerous by gusty winds, which are bringing dangerous wind chills to millions. The wind chill hit 57 degrees below zero in Rolla, North Dakota, Monday morning.

  4. Wind chill - Wikipedia

    en.wikipedia.org/wiki/Wind_chill

    Wind chill index values for a range of temperatures and wind speeds, from the standard wind chill formula for Environment Canada. Wind chill (popularly wind chill factor) is the sensation of cold produced by the wind for a given ambient air temperature on exposed skin as the air motion accelerates the rate of heat transfer from the body to the surrounding atmosphere.

  5. 'Feels like' temperature: What does it really mean and how ...

    www.aol.com/feels-temperature-does-really-mean...

    For example, in a scenario where the actual temperature is 10 degrees but the "feels like" temperature is -5 degrees, what that really means is that the wind chill is making it feel as if the air ...

  6. Wind chills 55 below; snow and ice in Florida: Extreme cold ...

    www.aol.com/bitter-cold-grips-much-us-133122205.html

    An arctic air mass will channel temperatures 20-30 degrees below already historically cold January averages. The South braced for a rare winter storm. Wind chills 55 below; snow and ice in Florida ...

  7. Apparent temperature - Wikipedia

    en.wikipedia.org/wiki/Apparent_temperature

    The heat index and humidex measure the effect of humidity on the perception of temperatures above +27 °C (81 °F). In humid conditions, the air feels much hotter, because less perspiration evaporates from the skin. The wind chill factor measures the effect of wind speed on cooling of the human body below 10 °C (50 °F). As airflow increases ...

  8. What is wind chill? How the 'feels like' temperature can ...

    www.aol.com/wind-chill-feels-temperature-hasten...

    If the temperature is 0 degrees and the wind is blowing at 15 mph, the wind chill is 19 degrees below zero. Low wind chill numbers are a sign you need to dress for colder conditions.

  9. Lowest temperature recorded on Earth - Wikipedia

    en.wikipedia.org/wiki/Lowest_temperature...

    The Low Temperature Laboratory recorded a record low temperature of 100 pK, or 1.0 × 10 −10 K in 1999. [11] The current apparatus for achieving low temperatures has two stages. The first uses a helium dilution refrigerator to get to temperatures of millikelvins, then the next stage uses adiabatic nuclear demagnetisation to reach picokelvins ...