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If your body temperature is 95 degrees or below, you feel cold and sluggish, or are having trouble thinking clearly, the NWS says to see your doctor immediately or go to the nearest emergency room.
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 ...
According to the Associated Press, this will be the 10th time this winter that the polar vortex — a large area of cold air that spins over the North Pole — will drop into the U.S., delivering ...
The Extreme Cold Warning was used from January 10, 2011 to April 15, 2011. [8] It was discontinued beginning with the 2011-12 winter storm season. Only five Extreme Cold Warnings were issued in that period: one for Burleigh County, three for areas outside of the Bismarck–Mandan metropolitan area, and one for West Glacier, Montana [9]
deposit of ice on cold surfaces; The WMO avoids the word "frost" alone [1] and uses "freezing" for temperature of air below the freezing point of water "hoar frost" and "ground frost" for deposit of ice on cold surfaces (see Hoar frost)
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.
Wind chills in Duluth, Minnesota, on Tuesday morning dropped as cold as minus 50 degrees. Below is a look at the latest wind chills showing where the heart of this arctic blast is located now.
A large piece of compressed ice, or a glacier, similarly appears blue. The blue color is sometimes wrongly attributed to Rayleigh scattering, which is responsible for the color of the sky. Rather, water ice is blue for the same reason that large quantities of liquid water are blue: it is a result of an overtone of an oxygen–hydrogen (O−H ...